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# Editors
.idea
.vscode
*.swp
.history
# Test files
*.test
coverage.txt
# Other
.DS_Store
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# Contributor Code of Conduct
As contributors and maintainers of this project,
and in the interest of fostering an open and welcoming community,
we pledge to respect all people who contribute through reporting issues,
posting feature requests, updating documentation,
submitting pull requests or patches, and other activities.
We are committed to making participation in this project
a harassment-free experience for everyone,
regardless of level of experience, gender, gender identity and expression,
sexual orientation, disability, personal appearance,
body size, race, ethnicity, age, religion, or nationality.
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery
* Personal attacks
* Trolling or insulting/derogatory comments
* Public or private harassment
* Publishing other's private information,
such as physical or electronic
addresses, without explicit permission
* Other unethical or unprofessional conduct.
Project maintainers have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct.
By adopting this Code of Conduct,
project maintainers commit themselves to fairly and consistently
applying these principles to every aspect of managing this project.
Project maintainers who do not follow or enforce the Code of Conduct
may be permanently removed from the project team.
This code of conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community.
Instances of abusive, harassing, or otherwise unacceptable behavior
may be reported by opening an issue
or contacting one or more of the project maintainers.
This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0,
available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/)
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# Contributing
1. [File an issue](https://github.com/googleapis/google-cloud-go/issues/new/choose).
The issue will be used to discuss the bug or feature and should be created
before sending a CL.
1. [Install Go](https://golang.org/dl/).
1. Ensure that your `GOBIN` directory (by default `$(go env GOPATH)/bin`)
is in your `PATH`.
1. Check it's working by running `go version`.
* If it doesn't work, check the install location, usually
`/usr/local/go`, is on your `PATH`.
1. Sign one of the
[contributor license agreements](#contributor-license-agreements) below.
1. Clone the repo:
`git clone https://github.com/googleapis/google-cloud-go`
1. Change into the checked out source:
`cd google-cloud-go`
1. Fork the repo.
1. Set your fork as a remote:
`git remote add fork git@github.com:GITHUB_USERNAME/google-cloud-go.git`
1. Make changes, commit to your fork.
Commit messages should follow the
[Conventional Commits Style](https://www.conventionalcommits.org). The scope
portion should always be filled with the name of the package affected by the
changes being made. For example:
```
feat(functions): add gophers codelab
```
1. Send a pull request with your changes.
To minimize friction, consider setting `Allow edits from maintainers` on the
PR, which will enable project committers and automation to update your PR.
1. A maintainer will review the pull request and make comments.
Prefer adding additional commits over amending and force-pushing since it can
be difficult to follow code reviews when the commit history changes.
Commits will be squashed when they're merged.
## Testing
We test code against two versions of Go, the minimum and maximum versions
supported by our clients. To see which versions these are checkout our
[README](README.md#supported-versions).
### Integration Tests
In addition to the unit tests, you may run the integration test suite. These
directions describe setting up your environment to run integration tests for
_all_ packages: note that many of these instructions may be redundant if you
intend only to run integration tests on a single package.
#### GCP Setup
To run the integrations tests, creation and configuration of two projects in
the Google Developers Console is required: one specifically for Firestore
integration tests, and another for all other integration tests. We'll refer to
these projects as "general project" and "Firestore project".
After creating each project, you must [create a service account](https://developers.google.com/identity/protocols/OAuth2ServiceAccount#creatinganaccount)
for each project. Ensure the project-level **Owner**
[IAM role](console.cloud.google.com/iam-admin/iam/project) role is added to
each service account. During the creation of the service account, you should
download the JSON credential file for use later.
Next, ensure the following APIs are enabled in the general project:
- BigQuery API
- BigQuery Data Transfer API
- Cloud Dataproc API
- Cloud Dataproc Control API Private
- Cloud Datastore API
- Cloud Firestore API
- Cloud Key Management Service (KMS) API
- Cloud Natural Language API
- Cloud OS Login API
- Cloud Pub/Sub API
- Cloud Resource Manager API
- Cloud Spanner API
- Cloud Speech API
- Cloud Translation API
- Cloud Video Intelligence API
- Cloud Vision API
- Compute Engine API
- Compute Engine Instance Group Manager API
- Container Registry API
- Firebase Rules API
- Google Cloud APIs
- Google Cloud Deployment Manager V2 API
- Google Cloud SQL
- Google Cloud Storage
- Google Cloud Storage JSON API
- Google Compute Engine Instance Group Updater API
- Google Compute Engine Instance Groups API
- Kubernetes Engine API
- Cloud Error Reporting API
- Pub/Sub Lite API
Next, create a Datastore database in the general project, and a Firestore
database in the Firestore project.
Finally, in the general project, create an API key for the translate API:
- Go to GCP Developer Console.
- Navigate to APIs & Services > Credentials.
- Click Create Credentials > API Key.
- Save this key for use in `GCLOUD_TESTS_API_KEY` as described below.
#### Local Setup
Once the two projects are created and configured, set the following environment
variables:
- `GCLOUD_TESTS_GOLANG_PROJECT_ID`: Developers Console project's ID (e.g.
bamboo-shift-455) for the general project.
- `GCLOUD_TESTS_GOLANG_KEY`: The path to the JSON key file of the general
project's service account.
- `GCLOUD_TESTS_GOLANG_FIRESTORE_PROJECT_ID`: Developers Console project's ID
(e.g. doorway-cliff-677) for the Firestore project.
- `GCLOUD_TESTS_GOLANG_FIRESTORE_KEY`: The path to the JSON key file of the
Firestore project's service account.
- `GCLOUD_TESTS_API_KEY`: API key for using the Translate API created above.
As part of the setup that follows, the following variables will be configured:
- `GCLOUD_TESTS_GOLANG_KEYRING`: The full name of the keyring for the tests,
in the form
"projects/P/locations/L/keyRings/R". The creation of this is described below.
- `GCLOUD_TESTS_GOLANG_ZONE`: Compute Engine zone.
Install the [gcloud command-line tool][gcloudcli] to your machine and use it to
create some resources used in integration tests.
From the project's root directory:
``` sh
# Sets the default project in your env.
$ gcloud config set project $GCLOUD_TESTS_GOLANG_PROJECT_ID
# Authenticates the gcloud tool with your account.
$ gcloud auth login
# Create the indexes used in the datastore integration tests.
$ gcloud datastore indexes create datastore/testdata/index.yaml
# Creates a Google Cloud storage bucket with the same name as your test project,
# and with the Cloud Logging service account as owner, for the sink
# integration tests in logging.
$ gsutil mb gs://$GCLOUD_TESTS_GOLANG_PROJECT_ID
$ gsutil acl ch -g cloud-logs@google.com:O gs://$GCLOUD_TESTS_GOLANG_PROJECT_ID
# Creates a PubSub topic for integration tests of storage notifications.
$ gcloud beta pubsub topics create go-storage-notification-test
# Next, go to the Pub/Sub dashboard in GCP console. Authorize the user
# "service-<numeric project id>@gs-project-accounts.iam.gserviceaccount.com"
# as a publisher to that topic.
# Creates a Spanner instance for the spanner integration tests.
$ gcloud beta spanner instances create go-integration-test --config regional-us-central1 --nodes 10 --description 'Instance for go client test'
# NOTE: Spanner instances are priced by the node-hour, so you may want to
# delete the instance after testing with 'gcloud beta spanner instances delete'.
$ export MY_KEYRING=some-keyring-name
$ export MY_LOCATION=global
# Creates a KMS keyring, in the same location as the default location for your
# project's buckets.
$ gcloud kms keyrings create $MY_KEYRING --location $MY_LOCATION
# Creates two keys in the keyring, named key1 and key2.
$ gcloud kms keys create key1 --keyring $MY_KEYRING --location $MY_LOCATION --purpose encryption
$ gcloud kms keys create key2 --keyring $MY_KEYRING --location $MY_LOCATION --purpose encryption
# Sets the GCLOUD_TESTS_GOLANG_KEYRING environment variable.
$ export GCLOUD_TESTS_GOLANG_KEYRING=projects/$GCLOUD_TESTS_GOLANG_PROJECT_ID/locations/$MY_LOCATION/keyRings/$MY_KEYRING
# Authorizes Google Cloud Storage to encrypt and decrypt using key1.
$ gsutil kms authorize -p $GCLOUD_TESTS_GOLANG_PROJECT_ID -k $GCLOUD_TESTS_GOLANG_KEYRING/cryptoKeys/key1
```
It may be useful to add exports to your shell initialization for future use.
For instance, in `.zshrc`:
```sh
#### START GO SDK Test Variables
# Developers Console project's ID (e.g. bamboo-shift-455) for the general project.
export GCLOUD_TESTS_GOLANG_PROJECT_ID=your-project
# The path to the JSON key file of the general project's service account.
export GCLOUD_TESTS_GOLANG_KEY=~/directory/your-project-abcd1234.json
# Developers Console project's ID (e.g. doorway-cliff-677) for the Firestore project.
export GCLOUD_TESTS_GOLANG_FIRESTORE_PROJECT_ID=your-firestore-project
# The path to the JSON key file of the Firestore project's service account.
export GCLOUD_TESTS_GOLANG_FIRESTORE_KEY=~/directory/your-firestore-project-abcd1234.json
# The full name of the keyring for the tests, in the form "projects/P/locations/L/keyRings/R".
# The creation of this is described below.
export MY_KEYRING=my-golang-sdk-test
export MY_LOCATION=global
export GCLOUD_TESTS_GOLANG_KEYRING=projects/$GCLOUD_TESTS_GOLANG_PROJECT_ID/locations/$MY_LOCATION/keyRings/$MY_KEYRING
# API key for using the Translate API.
export GCLOUD_TESTS_API_KEY=abcdefghijk123456789
# Compute Engine zone. (https://cloud.google.com/compute/docs/regions-zones)
export GCLOUD_TESTS_GOLANG_ZONE=your-chosen-region
#### END GO SDK Test Variables
```
#### Running
Once you've done the necessary setup, you can run the integration tests by
running:
``` sh
$ go test -v ./...
```
Note that the above command will not run the tests in other modules. To run
tests on other modules, first navigate to the appropriate
subdirectory. For instance, to run only the tests for datastore:
``` sh
$ cd datastore
$ go test -v ./...
```
#### Replay
Some packages can record the RPCs during integration tests to a file for
subsequent replay. To record, pass the `-record` flag to `go test`. The
recording will be saved to the _package_`.replay` file. To replay integration
tests from a saved recording, the replay file must be present, the `-short`
flag must be passed to `go test`, and the `GCLOUD_TESTS_GOLANG_ENABLE_REPLAY`
environment variable must have a non-empty value.
## Contributor License Agreements
Before we can accept your pull requests you'll need to sign a Contributor
License Agreement (CLA):
- **If you are an individual writing original source code** and **you own the
intellectual property**, then you'll need to sign an [individual CLA][indvcla].
- **If you work for a company that wants to allow you to contribute your
work**, then you'll need to sign a [corporate CLA][corpcla].
You can sign these electronically (just scroll to the bottom). After that,
we'll be able to accept your pull requests.
## Contributor Code of Conduct
As contributors and maintainers of this project,
and in the interest of fostering an open and welcoming community,
we pledge to respect all people who contribute through reporting issues,
posting feature requests, updating documentation,
submitting pull requests or patches, and other activities.
We are committed to making participation in this project
a harassment-free experience for everyone,
regardless of level of experience, gender, gender identity and expression,
sexual orientation, disability, personal appearance,
body size, race, ethnicity, age, religion, or nationality.
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery
* Personal attacks
* Trolling or insulting/derogatory comments
* Public or private harassment
* Publishing other's private information,
such as physical or electronic
addresses, without explicit permission
* Other unethical or unprofessional conduct.
Project maintainers have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct.
By adopting this Code of Conduct,
project maintainers commit themselves to fairly and consistently
applying these principles to every aspect of managing this project.
Project maintainers who do not follow or enforce the Code of Conduct
may be permanently removed from the project team.
This code of conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community.
Instances of abusive, harassing, or otherwise unacceptable behavior
may be reported by opening an issue
or contacting one or more of the project maintainers.
This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0,
available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/)
[gcloudcli]: https://developers.google.com/cloud/sdk/gcloud/
[indvcla]: https://developers.google.com/open-source/cla/individual
[corpcla]: https://developers.google.com/open-source/cla/corporate
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# Google Cloud Client Libraries for Go
[![Go Reference](https://pkg.go.dev/badge/cloud.google.com/go.svg)](https://pkg.go.dev/cloud.google.com/go)
Go packages for [Google Cloud Platform](https://cloud.google.com) services.
``` go
import "cloud.google.com/go"
```
To install the packages on your system, *do not clone the repo*. Instead:
1. Change to your project directory:
```
cd /my/cloud/project
```
1. Get the package you want to use. Some products have their own module, so it's
best to `go get` the package(s) you want to use:
```
$ go get cloud.google.com/go/firestore # Replace with the package you want to use.
```
**NOTE:** Some of these packages are under development, and may occasionally
make backwards-incompatible changes.
**NOTE:** Github repo is a mirror of [https://code.googlesource.com/gocloud](https://code.googlesource.com/gocloud).
## Supported APIs
| Google API | Status | Package |
| ----------------------------------------------- | ------ | ----------------------------------------------------------------------------------------------------------------------------- |
| [Asset][cloud-asset] | stable | [`cloud.google.com/go/asset/apiv1`](https://pkg.go.dev/cloud.google.com/go/asset/v1beta) |
| [Automl][cloud-automl] | stable | [`cloud.google.com/go/automl/apiv1`](https://pkg.go.dev/cloud.google.com/go/automl/apiv1) |
| [BigQuery][cloud-bigquery] | stable | [`cloud.google.com/go/bigquery`](https://pkg.go.dev/cloud.google.com/go/bigquery) |
| [Bigtable][cloud-bigtable] | stable | [`cloud.google.com/go/bigtable`](https://pkg.go.dev/cloud.google.com/go/bigtable) |
| [Cloudbuild][cloud-build] | stable | [`cloud.google.com/go/cloudbuild/apiv1`](https://pkg.go.dev/cloud.google.com/go/cloudbuild/apiv1) |
| [Cloudtasks][cloud-tasks] | stable | [`cloud.google.com/go/cloudtasks/apiv2`](https://pkg.go.dev/cloud.google.com/go/cloudtasks/apiv2) |
| [Container][cloud-container] | stable | [`cloud.google.com/go/container/apiv1`](https://pkg.go.dev/cloud.google.com/go/container/apiv1) |
| [ContainerAnalysis][cloud-containeranalysis] | beta | [`cloud.google.com/go/containeranalysis/apiv1`](https://pkg.go.dev/cloud.google.com/go/containeranalysis/apiv1) |
| [Dataproc][cloud-dataproc] | stable | [`cloud.google.com/go/dataproc/apiv1`](https://pkg.go.dev/cloud.google.com/go/dataproc/apiv1) |
| [Datastore][cloud-datastore] | stable | [`cloud.google.com/go/datastore`](https://pkg.go.dev/cloud.google.com/go/datastore) |
| [Debugger][cloud-debugger] | stable | [`cloud.google.com/go/debugger/apiv2`](https://pkg.go.dev/cloud.google.com/go/debugger/apiv2) |
| [Dialogflow][cloud-dialogflow] | stable | [`cloud.google.com/go/dialogflow/apiv2`](https://pkg.go.dev/cloud.google.com/go/dialogflow/apiv2) |
| [Data Loss Prevention][cloud-dlp] | stable | [`cloud.google.com/go/dlp/apiv2`](https://pkg.go.dev/cloud.google.com/go/dlp/apiv2) |
| [ErrorReporting][cloud-errors] | alpha | [`cloud.google.com/go/errorreporting`](https://pkg.go.dev/cloud.google.com/go/errorreporting) |
| [Firestore][cloud-firestore] | stable | [`cloud.google.com/go/firestore`](https://pkg.go.dev/cloud.google.com/go/firestore) |
| [IAM][cloud-iam] | stable | [`cloud.google.com/go/iam`](https://pkg.go.dev/cloud.google.com/go/iam) |
| [IoT][cloud-iot] | stable | [`cloud.google.com/go/iot/apiv1`](https://pkg.go.dev/cloud.google.com/go/iot/apiv1) |
| [IRM][cloud-irm] | alpha | [`cloud.google.com/go/irm/apiv1alpha2`](https://pkg.go.dev/cloud.google.com/go/irm/apiv1alpha2) |
| [KMS][cloud-kms] | stable | [`cloud.google.com/go/kms/apiv1`](https://pkg.go.dev/cloud.google.com/go/kms/apiv1) |
| [Natural Language][cloud-natural-language] | stable | [`cloud.google.com/go/language/apiv1`](https://pkg.go.dev/cloud.google.com/go/language/apiv1) |
| [Logging][cloud-logging] | stable | [`cloud.google.com/go/logging`](https://pkg.go.dev/cloud.google.com/go/logging) |
| [Memorystore][cloud-memorystore] | alpha | [`cloud.google.com/go/redis/apiv1`](https://pkg.go.dev/cloud.google.com/go/redis/apiv1) |
| [Monitoring][cloud-monitoring] | stable | [`cloud.google.com/go/monitoring/apiv3`](https://pkg.go.dev/cloud.google.com/go/monitoring/apiv3) |
| [OS Login][cloud-oslogin] | stable | [`cloud.google.com/go/oslogin/apiv1`](https://pkg.go.dev/cloud.google.com/go/oslogin/apiv1) |
| [Pub/Sub][cloud-pubsub] | stable | [`cloud.google.com/go/pubsub`](https://pkg.go.dev/cloud.google.com/go/pubsub) |
| [Phishing Protection][cloud-phishingprotection] | alpha | [`cloud.google.com/go/phishingprotection/apiv1beta1`](https://pkg.go.dev/cloud.google.com/go/phishingprotection/apiv1beta1) |
| [reCAPTCHA Enterprise][cloud-recaptcha] | alpha | [`cloud.google.com/go/recaptchaenterprise/apiv1beta1`](https://pkg.go.dev/cloud.google.com/go/recaptchaenterprise/apiv1beta1) |
| [Recommender][cloud-recommender] | beta | [`cloud.google.com/go/recommender/apiv1beta1`](https://pkg.go.dev/cloud.google.com/go/recommender/apiv1beta1) |
| [Scheduler][cloud-scheduler] | stable | [`cloud.google.com/go/scheduler/apiv1`](https://pkg.go.dev/cloud.google.com/go/scheduler/apiv1) |
| [Securitycenter][cloud-securitycenter] | stable | [`cloud.google.com/go/securitycenter/apiv1`](https://pkg.go.dev/cloud.google.com/go/securitycenter/apiv1) |
| [Spanner][cloud-spanner] | stable | [`cloud.google.com/go/spanner`](https://pkg.go.dev/cloud.google.com/go/spanner) |
| [Speech][cloud-speech] | stable | [`cloud.google.com/go/speech/apiv1`](https://pkg.go.dev/cloud.google.com/go/speech/apiv1) |
| [Storage][cloud-storage] | stable | [`cloud.google.com/go/storage`](https://pkg.go.dev/cloud.google.com/go/storage) |
| [Talent][cloud-talent] | alpha | [`cloud.google.com/go/talent/apiv4beta1`](https://pkg.go.dev/cloud.google.com/go/talent/apiv4beta1) |
| [Text To Speech][cloud-texttospeech] | stable | [`cloud.google.com/go/texttospeech/apiv1`](https://pkg.go.dev/cloud.google.com/go/texttospeech/apiv1) |
| [Trace][cloud-trace] | stable | [`cloud.google.com/go/trace/apiv2`](https://pkg.go.dev/cloud.google.com/go/trace/apiv2) |
| [Translate][cloud-translate] | stable | [`cloud.google.com/go/translate`](https://pkg.go.dev/cloud.google.com/go/translate) |
| [Video Intelligence][cloud-video] | beta | [`cloud.google.com/go/videointelligence/apiv1beta2`](https://pkg.go.dev/cloud.google.com/go/videointelligence/apiv1beta2) |
| [Vision][cloud-vision] | stable | [`cloud.google.com/go/vision/apiv1`](https://pkg.go.dev/cloud.google.com/go/vision/apiv1) |
| [Webrisk][cloud-webrisk] | alpha | [`cloud.google.com/go/webrisk/apiv1beta1`](https://pkg.go.dev/cloud.google.com/go/webrisk/apiv1beta1) |
> **Alpha status**: the API is still being actively developed. As a
> result, it might change in backward-incompatible ways and is not recommended
> for production use.
>
> **Beta status**: the API is largely complete, but still has outstanding
> features and bugs to be addressed. There may be minor backwards-incompatible
> changes where necessary.
>
> **Stable status**: the API is mature and ready for production use. We will
> continue addressing bugs and feature requests.
Documentation and examples are available at [pkg.go.dev/cloud.google.com/go](https://pkg.go.dev/cloud.google.com/go)
## [Go Versions Supported](#supported-versions)
We currently support Go versions 1.11 and newer.
## Authorization
By default, each API will use [Google Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials)
for authorization credentials used in calling the API endpoints. This will allow your
application to run in many environments without requiring explicit configuration.
[snip]:# (auth)
```go
client, err := storage.NewClient(ctx)
```
To authorize using a
[JSON key file](https://cloud.google.com/iam/docs/managing-service-account-keys),
pass
[`option.WithCredentialsFile`](https://pkg.go.dev/google.golang.org/api/option#WithCredentialsFile)
to the `NewClient` function of the desired package. For example:
[snip]:# (auth-JSON)
```go
client, err := storage.NewClient(ctx, option.WithCredentialsFile("path/to/keyfile.json"))
```
You can exert more control over authorization by using the
[`golang.org/x/oauth2`](https://pkg.go.dev/golang.org/x/oauth2) package to
create an `oauth2.TokenSource`. Then pass
[`option.WithTokenSource`](https://pkg.go.dev/google.golang.org/api/option#WithTokenSource)
to the `NewClient` function:
[snip]:# (auth-ts)
```go
tokenSource := ...
client, err := storage.NewClient(ctx, option.WithTokenSource(tokenSource))
```
## Contributing
Contributions are welcome. Please, see the
[CONTRIBUTING](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/CONTRIBUTING.md)
document for details.
Please note that this project is released with a Contributor Code of Conduct.
By participating in this project you agree to abide by its terms.
See [Contributor Code of Conduct](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/CONTRIBUTING.md#contributor-code-of-conduct)
for more information.
[cloud-asset]: https://cloud.google.com/security-command-center/docs/how-to-asset-inventory
[cloud-automl]: https://cloud.google.com/automl
[cloud-build]: https://cloud.google.com/cloud-build/
[cloud-bigquery]: https://cloud.google.com/bigquery/
[cloud-bigtable]: https://cloud.google.com/bigtable/
[cloud-container]: https://cloud.google.com/containers/
[cloud-containeranalysis]: https://cloud.google.com/container-registry/docs/container-analysis
[cloud-dataproc]: https://cloud.google.com/dataproc/
[cloud-datastore]: https://cloud.google.com/datastore/
[cloud-dialogflow]: https://cloud.google.com/dialogflow-enterprise/
[cloud-debugger]: https://cloud.google.com/debugger/
[cloud-dlp]: https://cloud.google.com/dlp/
[cloud-errors]: https://cloud.google.com/error-reporting/
[cloud-firestore]: https://cloud.google.com/firestore/
[cloud-iam]: https://cloud.google.com/iam/
[cloud-iot]: https://cloud.google.com/iot-core/
[cloud-irm]: https://cloud.google.com/incident-response/docs/concepts
[cloud-kms]: https://cloud.google.com/kms/
[cloud-pubsub]: https://cloud.google.com/pubsub/
[cloud-storage]: https://cloud.google.com/storage/
[cloud-language]: https://cloud.google.com/natural-language
[cloud-logging]: https://cloud.google.com/logging/
[cloud-natural-language]: https://cloud.google.com/natural-language/
[cloud-memorystore]: https://cloud.google.com/memorystore/
[cloud-monitoring]: https://cloud.google.com/monitoring/
[cloud-oslogin]: https://cloud.google.com/compute/docs/oslogin/rest
[cloud-phishingprotection]: https://cloud.google.com/phishing-protection/
[cloud-securitycenter]: https://cloud.google.com/security-command-center/
[cloud-scheduler]: https://cloud.google.com/scheduler
[cloud-spanner]: https://cloud.google.com/spanner/
[cloud-speech]: https://cloud.google.com/speech
[cloud-talent]: https://cloud.google.com/solutions/talent-solution/
[cloud-tasks]: https://cloud.google.com/tasks/
[cloud-texttospeech]: https://cloud.google.com/texttospeech/
[cloud-talent]: https://cloud.google.com/solutions/talent-solution/
[cloud-trace]: https://cloud.google.com/trace/
[cloud-translate]: https://cloud.google.com/translate
[cloud-recaptcha]: https://cloud.google.com/recaptcha-enterprise/
[cloud-recommender]: https://cloud.google.com/recommendations/
[cloud-video]: https://cloud.google.com/video-intelligence/
[cloud-vision]: https://cloud.google.com/vision
[cloud-webrisk]: https://cloud.google.com/web-risk/
## Links
- [Go on Google Cloud](https://cloud.google.com/go/home)
- [Getting started with Go on Google Cloud](https://cloud.google.com/go/getting-started)
- [App Engine Quickstart](https://cloud.google.com/appengine/docs/standard/go/quickstart)
- [Cloud Functions Quickstart](https://cloud.google.com/functions/docs/quickstart-go)
- [Cloud Run Quickstart](https://cloud.google.com/run/docs/quickstarts/build-and-deploy#go)
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# Releasing
## Determine which module to release
The Go client libraries have several modules. Each module does not strictly
correspond to a single library - they correspond to trees of directories. If a
file needs to be released, you must release the closest ancestor module.
To see all modules:
```bash
$ cat `find . -name go.mod` | grep module
module cloud.google.com/go/pubsub
module cloud.google.com/go/spanner
module cloud.google.com/go
module cloud.google.com/go/bigtable
module cloud.google.com/go/bigquery
module cloud.google.com/go/storage
module cloud.google.com/go/pubsublite
module cloud.google.com/go/firestore
module cloud.google.com/go/logging
module cloud.google.com/go/internal/gapicgen
module cloud.google.com/go/internal/godocfx
module cloud.google.com/go/internal/examples/fake
module cloud.google.com/go/internal/examples/mock
module cloud.google.com/go/datastore
```
The `cloud.google.com/go` is the repository root module. Each other module is
a submodule.
So, if you need to release a change in `bigtable/bttest/inmem.go`, the closest
ancestor module is `cloud.google.com/go/bigtable` - so you should release a new
version of the `cloud.google.com/go/bigtable` submodule.
If you need to release a change in `asset/apiv1/asset_client.go`, the closest
ancestor module is `cloud.google.com/go` - so you should release a new version
of the `cloud.google.com/go` repository root module. Note: releasing
`cloud.google.com/go` has no impact on any of the submodules, and vice-versa.
They are released entirely independently.
## Test failures
If there are any test failures in the Kokoro build, releases are blocked until
the failures have been resolved.
## How to release
### Automated Releases (`cloud.google.com/go` and submodules)
We now use [release-please](https://github.com/googleapis/release-please) to
perform automated releases for `cloud.google.com/go` and all submodules.
1. If there are changes that have not yet been released, a
[pull request](https://github.com/googleapis/google-cloud-go/pull/2971) will
be automatically opened by release-please
with a title like "chore: release X.Y.Z" (for the root module) or
"chore: release datastore X.Y.Z" (for the datastore submodule), where X.Y.Z
is the next version to be released. Find the desired pull request
[here](https://github.com/googleapis/google-cloud-go/pulls)
1. Check for failures in the
[continuous Kokoro build](http://go/google-cloud-go-continuous). If there are
any failures in the most recent build, address them before proceeding with
the release. (This applies even if the failures are in a different submodule
from the one being released.)
1. Review the release notes. These are automatically generated from the titles
of any merged commits since the previous release. If you would like to edit
them, this can be done by updating the changes in the release PR.
1. To cut a release, approve and merge the pull request. Doing so will
update the `CHANGES.md`, tag the merged commit with the appropriate version,
and draft a GitHub release which will copy the notes from `CHANGES.md`.
### Manual Release (`cloud.google.com/go`)
If for whatever reason the automated release process is not working as expected,
here is how to manually cut a release of `cloud.google.com/go`.
1. Check for failures in the
[continuous Kokoro build](http://go/google-cloud-go-continuous). If there are
any failures in the most recent build, address them before proceeding with
the release.
1. Navigate to `google-cloud-go/` and switch to master.
1. `git pull`
1. Run `git tag -l | grep -v beta | grep -v alpha` to see all existing releases.
The current latest tag `$CV` is the largest tag. It should look something
like `vX.Y.Z` (note: ignore all `LIB/vX.Y.Z` tags - these are tags for a
specific library, not the module root). We'll call the current version `$CV`
and the new version `$NV`.
1. On master, run `git log $CV...` to list all the changes since the last
release. NOTE: You must manually visually parse out changes to submodules [1]
(the `git log` is going to show you things in submodules, which are not going
to be part of your release).
1. Edit `CHANGES.md` to include a summary of the changes.
1. In `internal/version/version.go`, update `const Repo` to today's date with
the format `YYYYMMDD`.
1. In `internal/version` run `go generate`.
1. Commit the changes, ignoring the generated `.go-r` file. Push to your fork,
and create a PR titled `chore: release $NV`.
1. Wait for the PR to be reviewed and merged. Once it's merged, and without
merging any other PRs in the meantime:
a. Switch to master.
b. `git pull`
c. Tag the repo with the next version: `git tag $NV`.
d. Push the tag to origin:
`git push origin $NV`
1. Update [the releases page](https://github.com/googleapis/google-cloud-go/releases)
with the new release, copying the contents of `CHANGES.md`.
### Manual Releases (submodules)
If for whatever reason the automated release process is not working as expected,
here is how to manually cut a release of a submodule.
(these instructions assume we're releasing `cloud.google.com/go/datastore` - adjust accordingly)
1. Check for failures in the
[continuous Kokoro build](http://go/google-cloud-go-continuous). If there are
any failures in the most recent build, address them before proceeding with
the release. (This applies even if the failures are in a different submodule
from the one being released.)
1. Navigate to `google-cloud-go/` and switch to master.
1. `git pull`
1. Run `git tag -l | grep datastore | grep -v beta | grep -v alpha` to see all
existing releases. The current latest tag `$CV` is the largest tag. It
should look something like `datastore/vX.Y.Z`. We'll call the current version
`$CV` and the new version `$NV`.
1. On master, run `git log $CV.. -- datastore/` to list all the changes to the
submodule directory since the last release.
1. Edit `datastore/CHANGES.md` to include a summary of the changes.
1. In `internal/version` run `go generate`.
1. Commit the changes, ignoring the generated `.go-r` file. Push to your fork,
and create a PR titled `chore(datastore): release $NV`.
1. Wait for the PR to be reviewed and merged. Once it's merged, and without
merging any other PRs in the meantime:
a. Switch to master.
b. `git pull`
c. Tag the repo with the next version: `git tag $NV`.
d. Push the tag to origin:
`git push origin $NV`
1. Update [the releases page](https://github.com/googleapis/google-cloud-go/releases)
with the new release, copying the contents of `datastore/CHANGES.md`.
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@@ -1,519 +0,0 @@
// Copyright 2014 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package metadata provides access to Google Compute Engine (GCE)
// metadata and API service accounts.
//
// This package is a wrapper around the GCE metadata service,
// as documented at https://developers.google.com/compute/docs/metadata.
package metadata // import "cloud.google.com/go/compute/metadata"
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"os"
"runtime"
"strings"
"sync"
"time"
)
const (
// metadataIP is the documented metadata server IP address.
metadataIP = "169.254.169.254"
// metadataHostEnv is the environment variable specifying the
// GCE metadata hostname. If empty, the default value of
// metadataIP ("169.254.169.254") is used instead.
// This is variable name is not defined by any spec, as far as
// I know; it was made up for the Go package.
metadataHostEnv = "GCE_METADATA_HOST"
userAgent = "gcloud-golang/0.1"
)
type cachedValue struct {
k string
trim bool
mu sync.Mutex
v string
}
var (
projID = &cachedValue{k: "project/project-id", trim: true}
projNum = &cachedValue{k: "project/numeric-project-id", trim: true}
instID = &cachedValue{k: "instance/id", trim: true}
)
var defaultClient = &Client{hc: &http.Client{
Transport: &http.Transport{
Dial: (&net.Dialer{
Timeout: 2 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
},
}}
// NotDefinedError is returned when requested metadata is not defined.
//
// The underlying string is the suffix after "/computeMetadata/v1/".
//
// This error is not returned if the value is defined to be the empty
// string.
type NotDefinedError string
func (suffix NotDefinedError) Error() string {
return fmt.Sprintf("metadata: GCE metadata %q not defined", string(suffix))
}
func (c *cachedValue) get(cl *Client) (v string, err error) {
defer c.mu.Unlock()
c.mu.Lock()
if c.v != "" {
return c.v, nil
}
if c.trim {
v, err = cl.getTrimmed(c.k)
} else {
v, err = cl.Get(c.k)
}
if err == nil {
c.v = v
}
return
}
var (
onGCEOnce sync.Once
onGCE bool
)
// OnGCE reports whether this process is running on Google Compute Engine.
func OnGCE() bool {
onGCEOnce.Do(initOnGCE)
return onGCE
}
func initOnGCE() {
onGCE = testOnGCE()
}
func testOnGCE() bool {
// The user explicitly said they're on GCE, so trust them.
if os.Getenv(metadataHostEnv) != "" {
return true
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
resc := make(chan bool, 2)
// Try two strategies in parallel.
// See https://github.com/googleapis/google-cloud-go/issues/194
go func() {
req, _ := http.NewRequest("GET", "http://"+metadataIP, nil)
req.Header.Set("User-Agent", userAgent)
res, err := defaultClient.hc.Do(req.WithContext(ctx))
if err != nil {
resc <- false
return
}
defer res.Body.Close()
resc <- res.Header.Get("Metadata-Flavor") == "Google"
}()
go func() {
addrs, err := net.DefaultResolver.LookupHost(ctx, "metadata.google.internal")
if err != nil || len(addrs) == 0 {
resc <- false
return
}
resc <- strsContains(addrs, metadataIP)
}()
tryHarder := systemInfoSuggestsGCE()
if tryHarder {
res := <-resc
if res {
// The first strategy succeeded, so let's use it.
return true
}
// Wait for either the DNS or metadata server probe to
// contradict the other one and say we are running on
// GCE. Give it a lot of time to do so, since the system
// info already suggests we're running on a GCE BIOS.
timer := time.NewTimer(5 * time.Second)
defer timer.Stop()
select {
case res = <-resc:
return res
case <-timer.C:
// Too slow. Who knows what this system is.
return false
}
}
// There's no hint from the system info that we're running on
// GCE, so use the first probe's result as truth, whether it's
// true or false. The goal here is to optimize for speed for
// users who are NOT running on GCE. We can't assume that
// either a DNS lookup or an HTTP request to a blackholed IP
// address is fast. Worst case this should return when the
// metaClient's Transport.ResponseHeaderTimeout or
// Transport.Dial.Timeout fires (in two seconds).
return <-resc
}
// systemInfoSuggestsGCE reports whether the local system (without
// doing network requests) suggests that we're running on GCE. If this
// returns true, testOnGCE tries a bit harder to reach its metadata
// server.
func systemInfoSuggestsGCE() bool {
if runtime.GOOS != "linux" {
// We don't have any non-Linux clues available, at least yet.
return false
}
slurp, _ := ioutil.ReadFile("/sys/class/dmi/id/product_name")
name := strings.TrimSpace(string(slurp))
return name == "Google" || name == "Google Compute Engine"
}
// Subscribe calls Client.Subscribe on the default client.
func Subscribe(suffix string, fn func(v string, ok bool) error) error {
return defaultClient.Subscribe(suffix, fn)
}
// Get calls Client.Get on the default client.
func Get(suffix string) (string, error) { return defaultClient.Get(suffix) }
// ProjectID returns the current instance's project ID string.
func ProjectID() (string, error) { return defaultClient.ProjectID() }
// NumericProjectID returns the current instance's numeric project ID.
func NumericProjectID() (string, error) { return defaultClient.NumericProjectID() }
// InternalIP returns the instance's primary internal IP address.
func InternalIP() (string, error) { return defaultClient.InternalIP() }
// ExternalIP returns the instance's primary external (public) IP address.
func ExternalIP() (string, error) { return defaultClient.ExternalIP() }
// Email calls Client.Email on the default client.
func Email(serviceAccount string) (string, error) { return defaultClient.Email(serviceAccount) }
// Hostname returns the instance's hostname. This will be of the form
// "<instanceID>.c.<projID>.internal".
func Hostname() (string, error) { return defaultClient.Hostname() }
// InstanceTags returns the list of user-defined instance tags,
// assigned when initially creating a GCE instance.
func InstanceTags() ([]string, error) { return defaultClient.InstanceTags() }
// InstanceID returns the current VM's numeric instance ID.
func InstanceID() (string, error) { return defaultClient.InstanceID() }
// InstanceName returns the current VM's instance ID string.
func InstanceName() (string, error) { return defaultClient.InstanceName() }
// Zone returns the current VM's zone, such as "us-central1-b".
func Zone() (string, error) { return defaultClient.Zone() }
// InstanceAttributes calls Client.InstanceAttributes on the default client.
func InstanceAttributes() ([]string, error) { return defaultClient.InstanceAttributes() }
// ProjectAttributes calls Client.ProjectAttributes on the default client.
func ProjectAttributes() ([]string, error) { return defaultClient.ProjectAttributes() }
// InstanceAttributeValue calls Client.InstanceAttributeValue on the default client.
func InstanceAttributeValue(attr string) (string, error) {
return defaultClient.InstanceAttributeValue(attr)
}
// ProjectAttributeValue calls Client.ProjectAttributeValue on the default client.
func ProjectAttributeValue(attr string) (string, error) {
return defaultClient.ProjectAttributeValue(attr)
}
// Scopes calls Client.Scopes on the default client.
func Scopes(serviceAccount string) ([]string, error) { return defaultClient.Scopes(serviceAccount) }
func strsContains(ss []string, s string) bool {
for _, v := range ss {
if v == s {
return true
}
}
return false
}
// A Client provides metadata.
type Client struct {
hc *http.Client
}
// NewClient returns a Client that can be used to fetch metadata.
// Returns the client that uses the specified http.Client for HTTP requests.
// If nil is specified, returns the default client.
func NewClient(c *http.Client) *Client {
if c == nil {
return defaultClient
}
return &Client{hc: c}
}
// getETag returns a value from the metadata service as well as the associated ETag.
// This func is otherwise equivalent to Get.
func (c *Client) getETag(suffix string) (value, etag string, err error) {
// Using a fixed IP makes it very difficult to spoof the metadata service in
// a container, which is an important use-case for local testing of cloud
// deployments. To enable spoofing of the metadata service, the environment
// variable GCE_METADATA_HOST is first inspected to decide where metadata
// requests shall go.
host := os.Getenv(metadataHostEnv)
if host == "" {
// Using 169.254.169.254 instead of "metadata" here because Go
// binaries built with the "netgo" tag and without cgo won't
// know the search suffix for "metadata" is
// ".google.internal", and this IP address is documented as
// being stable anyway.
host = metadataIP
}
suffix = strings.TrimLeft(suffix, "/")
u := "http://" + host + "/computeMetadata/v1/" + suffix
req, err := http.NewRequest("GET", u, nil)
if err != nil {
return "", "", err
}
req.Header.Set("Metadata-Flavor", "Google")
req.Header.Set("User-Agent", userAgent)
res, err := c.hc.Do(req)
if err != nil {
return "", "", err
}
defer res.Body.Close()
if res.StatusCode == http.StatusNotFound {
return "", "", NotDefinedError(suffix)
}
all, err := ioutil.ReadAll(res.Body)
if err != nil {
return "", "", err
}
if res.StatusCode != 200 {
return "", "", &Error{Code: res.StatusCode, Message: string(all)}
}
return string(all), res.Header.Get("Etag"), nil
}
// Get returns a value from the metadata service.
// The suffix is appended to "http://${GCE_METADATA_HOST}/computeMetadata/v1/".
//
// If the GCE_METADATA_HOST environment variable is not defined, a default of
// 169.254.169.254 will be used instead.
//
// If the requested metadata is not defined, the returned error will
// be of type NotDefinedError.
func (c *Client) Get(suffix string) (string, error) {
val, _, err := c.getETag(suffix)
return val, err
}
func (c *Client) getTrimmed(suffix string) (s string, err error) {
s, err = c.Get(suffix)
s = strings.TrimSpace(s)
return
}
func (c *Client) lines(suffix string) ([]string, error) {
j, err := c.Get(suffix)
if err != nil {
return nil, err
}
s := strings.Split(strings.TrimSpace(j), "\n")
for i := range s {
s[i] = strings.TrimSpace(s[i])
}
return s, nil
}
// ProjectID returns the current instance's project ID string.
func (c *Client) ProjectID() (string, error) { return projID.get(c) }
// NumericProjectID returns the current instance's numeric project ID.
func (c *Client) NumericProjectID() (string, error) { return projNum.get(c) }
// InstanceID returns the current VM's numeric instance ID.
func (c *Client) InstanceID() (string, error) { return instID.get(c) }
// InternalIP returns the instance's primary internal IP address.
func (c *Client) InternalIP() (string, error) {
return c.getTrimmed("instance/network-interfaces/0/ip")
}
// Email returns the email address associated with the service account.
// The account may be empty or the string "default" to use the instance's
// main account.
func (c *Client) Email(serviceAccount string) (string, error) {
if serviceAccount == "" {
serviceAccount = "default"
}
return c.getTrimmed("instance/service-accounts/" + serviceAccount + "/email")
}
// ExternalIP returns the instance's primary external (public) IP address.
func (c *Client) ExternalIP() (string, error) {
return c.getTrimmed("instance/network-interfaces/0/access-configs/0/external-ip")
}
// Hostname returns the instance's hostname. This will be of the form
// "<instanceID>.c.<projID>.internal".
func (c *Client) Hostname() (string, error) {
return c.getTrimmed("instance/hostname")
}
// InstanceTags returns the list of user-defined instance tags,
// assigned when initially creating a GCE instance.
func (c *Client) InstanceTags() ([]string, error) {
var s []string
j, err := c.Get("instance/tags")
if err != nil {
return nil, err
}
if err := json.NewDecoder(strings.NewReader(j)).Decode(&s); err != nil {
return nil, err
}
return s, nil
}
// InstanceName returns the current VM's instance ID string.
func (c *Client) InstanceName() (string, error) {
return c.getTrimmed("instance/name")
}
// Zone returns the current VM's zone, such as "us-central1-b".
func (c *Client) Zone() (string, error) {
zone, err := c.getTrimmed("instance/zone")
// zone is of the form "projects/<projNum>/zones/<zoneName>".
if err != nil {
return "", err
}
return zone[strings.LastIndex(zone, "/")+1:], nil
}
// InstanceAttributes returns the list of user-defined attributes,
// assigned when initially creating a GCE VM instance. The value of an
// attribute can be obtained with InstanceAttributeValue.
func (c *Client) InstanceAttributes() ([]string, error) { return c.lines("instance/attributes/") }
// ProjectAttributes returns the list of user-defined attributes
// applying to the project as a whole, not just this VM. The value of
// an attribute can be obtained with ProjectAttributeValue.
func (c *Client) ProjectAttributes() ([]string, error) { return c.lines("project/attributes/") }
// InstanceAttributeValue returns the value of the provided VM
// instance attribute.
//
// If the requested attribute is not defined, the returned error will
// be of type NotDefinedError.
//
// InstanceAttributeValue may return ("", nil) if the attribute was
// defined to be the empty string.
func (c *Client) InstanceAttributeValue(attr string) (string, error) {
return c.Get("instance/attributes/" + attr)
}
// ProjectAttributeValue returns the value of the provided
// project attribute.
//
// If the requested attribute is not defined, the returned error will
// be of type NotDefinedError.
//
// ProjectAttributeValue may return ("", nil) if the attribute was
// defined to be the empty string.
func (c *Client) ProjectAttributeValue(attr string) (string, error) {
return c.Get("project/attributes/" + attr)
}
// Scopes returns the service account scopes for the given account.
// The account may be empty or the string "default" to use the instance's
// main account.
func (c *Client) Scopes(serviceAccount string) ([]string, error) {
if serviceAccount == "" {
serviceAccount = "default"
}
return c.lines("instance/service-accounts/" + serviceAccount + "/scopes")
}
// Subscribe subscribes to a value from the metadata service.
// The suffix is appended to "http://${GCE_METADATA_HOST}/computeMetadata/v1/".
// The suffix may contain query parameters.
//
// Subscribe calls fn with the latest metadata value indicated by the provided
// suffix. If the metadata value is deleted, fn is called with the empty string
// and ok false. Subscribe blocks until fn returns a non-nil error or the value
// is deleted. Subscribe returns the error value returned from the last call to
// fn, which may be nil when ok == false.
func (c *Client) Subscribe(suffix string, fn func(v string, ok bool) error) error {
const failedSubscribeSleep = time.Second * 5
// First check to see if the metadata value exists at all.
val, lastETag, err := c.getETag(suffix)
if err != nil {
return err
}
if err := fn(val, true); err != nil {
return err
}
ok := true
if strings.ContainsRune(suffix, '?') {
suffix += "&wait_for_change=true&last_etag="
} else {
suffix += "?wait_for_change=true&last_etag="
}
for {
val, etag, err := c.getETag(suffix + url.QueryEscape(lastETag))
if err != nil {
if _, deleted := err.(NotDefinedError); !deleted {
time.Sleep(failedSubscribeSleep)
continue // Retry on other errors.
}
ok = false
}
lastETag = etag
if err := fn(val, ok); err != nil || !ok {
return err
}
}
}
// Error contains an error response from the server.
type Error struct {
// Code is the HTTP response status code.
Code int
// Message is the server response message.
Message string
}
func (e *Error) Error() string {
return fmt.Sprintf("compute: Received %d `%s`", e.Code, e.Message)
}
-109
View File
@@ -1,109 +0,0 @@
// Copyright 2014 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*
Package cloud is the root of the packages used to access Google Cloud
Services. See https://godoc.org/cloud.google.com/go for a full list
of sub-packages.
Client Options
All clients in sub-packages are configurable via client options. These options are
described here: https://godoc.org/google.golang.org/api/option.
Authentication and Authorization
All the clients in sub-packages support authentication via Google Application Default
Credentials (see https://cloud.google.com/docs/authentication/production), or
by providing a JSON key file for a Service Account. See the authentication examples
in this package for details.
Timeouts and Cancellation
By default, non-streaming methods, like Create or Get, will have a default deadline applied to the
context provided at call time, unless a context deadline is already set. Streaming
methods have no default deadline and will run indefinitely. To set timeouts or
arrange for cancellation, use contexts. See the examples for details. Transient
errors will be retried when correctness allows.
To opt out of default deadlines, set the temporary environment variable
GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE to "true" prior to client
creation. This affects all Google Cloud Go client libraries. This opt-out
mechanism will be removed in a future release. File an issue at
https://github.com/googleapis/google-cloud-go if the default deadlines
cannot work for you.
Do not attempt to control the initial connection (dialing) of a service by setting a
timeout on the context passed to NewClient. Dialing is non-blocking, so timeouts
would be ineffective and would only interfere with credential refreshing, which uses
the same context.
Connection Pooling
Connection pooling differs in clients based on their transport. Cloud
clients either rely on HTTP or gRPC transports to communicate
with Google Cloud.
Cloud clients that use HTTP (bigquery, compute, storage, and translate) rely on the
underlying HTTP transport to cache connections for later re-use. These are cached to
the default http.MaxIdleConns and http.MaxIdleConnsPerHost settings in
http.DefaultTransport.
For gRPC clients (all others in this repo), connection pooling is configurable. Users
of cloud client libraries may specify option.WithGRPCConnectionPool(n) as a client
option to NewClient calls. This configures the underlying gRPC connections to be
pooled and addressed in a round robin fashion.
Using the Libraries with Docker
Minimal docker images like Alpine lack CA certificates. This causes RPCs to appear to
hang, because gRPC retries indefinitely. See https://github.com/googleapis/google-cloud-go/issues/928
for more information.
Debugging
To see gRPC logs, set the environment variable GRPC_GO_LOG_SEVERITY_LEVEL. See
https://godoc.org/google.golang.org/grpc/grpclog for more information.
For HTTP logging, set the GODEBUG environment variable to "http2debug=1" or "http2debug=2".
Client Stability
Clients in this repository are considered alpha or beta unless otherwise
marked as stable in the README.md. Semver is not used to communicate stability
of clients.
Alpha and beta clients may change or go away without notice.
Clients marked stable will maintain compatibility with future versions for as
long as we can reasonably sustain. Incompatible changes might be made in some
situations, including:
- Security bugs may prompt backwards-incompatible changes.
- Situations in which components are no longer feasible to maintain without
making breaking changes, including removal.
- Parts of the client surface may be outright unstable and subject to change.
These parts of the surface will be labeled with the note, "It is EXPERIMENTAL
and subject to change or removal without notice."
*/
package cloud // import "cloud.google.com/go"
-24
View File
@@ -1,24 +0,0 @@
module cloud.google.com/go
go 1.11
require (
cloud.google.com/go/storage v1.10.0
github.com/golang/mock v1.4.4
github.com/golang/protobuf v1.4.3
github.com/google/go-cmp v0.5.4
github.com/google/martian/v3 v3.1.0
github.com/google/pprof v0.0.0-20201218002935-b9804c9f04c2
github.com/googleapis/gax-go/v2 v2.0.5
github.com/jstemmer/go-junit-report v0.9.1
go.opencensus.io v0.22.5
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5
golang.org/x/mod v0.4.0 // indirect
golang.org/x/net v0.0.0-20201224014010-6772e930b67b
golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5
golang.org/x/text v0.3.4
golang.org/x/tools v0.0.0-20210108195828-e2f9c7f1fc8e
google.golang.org/api v0.36.0
google.golang.org/genproto v0.0.0-20210108203827-ffc7fda8c3d7
google.golang.org/grpc v1.34.0
)
-574
View File
@@ -1,574 +0,0 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go/bigquery v1.0.1 h1:hL+ycaJpVE9M7nLoiXb/Pn10ENE2u+oddxbD8uu0ZVU=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0 h1:sAbMqjY1PEQKZBWfbu6Y6bsupJ9c4QdHnzg/VvYTLcE=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0 h1:xE3CPsOgttP4ACBePh79zTKALtXwn/Edhcr16R5hMWU=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0 h1:a/O/bK/vWrYGOTFtH8di4rBxMZnmkjy+Y5LxpDwo+dA=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0 h1:PQcPefKFdaIzjQFbiyOgAqyx8q5djaE7x9Sqe712DPA=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/datastore v1.0.0 h1:Kt+gOPPp2LEPWp8CSfxhsM8ik9CcyE/gYu+0r+RnZvM=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0 h1:/May9ojXjRkPBNVrq+oWLqmWCkr4OU5uRY29bu0mRyQ=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/pubsub v1.0.1 h1:W9tAK3E57P75u0XLLR82LZyw8VpAnhmyTOxW9qzmyj8=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0 h1:9/vpR43S4aJaROxqQHQ3nH9lfyKKV0dC3vOmnw8ebQQ=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0 h1:Lpy6hKgdcl7a3WGSfJIFmxmcdjSpP6OmBEfcOv1Y680=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1 h1:ukjixP1wl0LpnZ6LWtZJ0mX5tBmjp1f8Sqer8Z2OMUU=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/storage v1.0.0 h1:VV2nUM3wwLLGh9lSABFgZMjInyUbJeaRSE64WuAIQ+4=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0 h1:RPUcBvDeYgQFMfQu1eBMq6piD1SXmLH+vK3qjewZPus=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0 h1:UDpwYIwla4jHGzZJaEJYx1tOejbgSoNqsAfHAUYe2r8=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0 h1:86K1Gel7BQ9/WmNWn7dTKMvTLFzwtBe5FNqYbi9X35g=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0 h1:STgFzyU5/8miMl0//zKh2aQeTyeaUH3WN9bSUiJ09bA=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0 h1:28o5sBqPkBsMGnC6b4MvE2TzSr5/AT4c/1fLqVGIwlk=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1 h1:qGJ6qTW+x6xX/my+8YUVl4WNpX9B7+/l2tRsHGZ7f2s=
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github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
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github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
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github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
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github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
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github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4 h1:c2HOrn5iMezYjSlGPncknSEr/8x5LELb/ilJbXi9DEA=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522 h1:OeRHuibLsmZkFj773W4LcfAGsSxJgfPONhr8cmO+eLA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
golang.org/x/exp v0.0.0-20190829153037-c13cbed26979 h1:Agxu5KLo8o7Bb634SVDnhIfpTvxmzUwhbYAzBvXt6h4=
golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6 h1:QE6XYQK6naiK1EPAe1g/ILLxN5RBoH5xkJk3CqlMI/Y=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
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-387
View File
@@ -1,387 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package iam supports the resource-specific operations of Google Cloud
// IAM (Identity and Access Management) for the Google Cloud Libraries.
// See https://cloud.google.com/iam for more about IAM.
//
// Users of the Google Cloud Libraries will typically not use this package
// directly. Instead they will begin with some resource that supports IAM, like
// a pubsub topic, and call its IAM method to get a Handle for that resource.
package iam
import (
"context"
"fmt"
"time"
gax "github.com/googleapis/gax-go/v2"
pb "google.golang.org/genproto/googleapis/iam/v1"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
// client abstracts the IAMPolicy API to allow multiple implementations.
type client interface {
Get(ctx context.Context, resource string) (*pb.Policy, error)
Set(ctx context.Context, resource string, p *pb.Policy) error
Test(ctx context.Context, resource string, perms []string) ([]string, error)
GetWithVersion(ctx context.Context, resource string, requestedPolicyVersion int32) (*pb.Policy, error)
}
// grpcClient implements client for the standard gRPC-based IAMPolicy service.
type grpcClient struct {
c pb.IAMPolicyClient
}
var withRetry = gax.WithRetry(func() gax.Retryer {
return gax.OnCodes([]codes.Code{
codes.DeadlineExceeded,
codes.Unavailable,
}, gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60 * time.Second,
Multiplier: 1.3,
})
})
func (g *grpcClient) Get(ctx context.Context, resource string) (*pb.Policy, error) {
return g.GetWithVersion(ctx, resource, 1)
}
func (g *grpcClient) GetWithVersion(ctx context.Context, resource string, requestedPolicyVersion int32) (*pb.Policy, error) {
var proto *pb.Policy
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", resource))
ctx = insertMetadata(ctx, md)
err := gax.Invoke(ctx, func(ctx context.Context, _ gax.CallSettings) error {
var err error
proto, err = g.c.GetIamPolicy(ctx, &pb.GetIamPolicyRequest{
Resource: resource,
Options: &pb.GetPolicyOptions{
RequestedPolicyVersion: requestedPolicyVersion,
},
})
return err
}, withRetry)
if err != nil {
return nil, err
}
return proto, nil
}
func (g *grpcClient) Set(ctx context.Context, resource string, p *pb.Policy) error {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", resource))
ctx = insertMetadata(ctx, md)
return gax.Invoke(ctx, func(ctx context.Context, _ gax.CallSettings) error {
_, err := g.c.SetIamPolicy(ctx, &pb.SetIamPolicyRequest{
Resource: resource,
Policy: p,
})
return err
}, withRetry)
}
func (g *grpcClient) Test(ctx context.Context, resource string, perms []string) ([]string, error) {
var res *pb.TestIamPermissionsResponse
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", resource))
ctx = insertMetadata(ctx, md)
err := gax.Invoke(ctx, func(ctx context.Context, _ gax.CallSettings) error {
var err error
res, err = g.c.TestIamPermissions(ctx, &pb.TestIamPermissionsRequest{
Resource: resource,
Permissions: perms,
})
return err
}, withRetry)
if err != nil {
return nil, err
}
return res.Permissions, nil
}
// A Handle provides IAM operations for a resource.
type Handle struct {
c client
resource string
}
// A Handle3 provides IAM operations for a resource. It is similar to a Handle, but provides access to newer IAM features (e.g., conditions).
type Handle3 struct {
c client
resource string
version int32
}
// InternalNewHandle is for use by the Google Cloud Libraries only.
//
// InternalNewHandle returns a Handle for resource.
// The conn parameter refers to a server that must support the IAMPolicy service.
func InternalNewHandle(conn grpc.ClientConnInterface, resource string) *Handle {
return InternalNewHandleGRPCClient(pb.NewIAMPolicyClient(conn), resource)
}
// InternalNewHandleGRPCClient is for use by the Google Cloud Libraries only.
//
// InternalNewHandleClient returns a Handle for resource using the given
// grpc service that implements IAM as a mixin
func InternalNewHandleGRPCClient(c pb.IAMPolicyClient, resource string) *Handle {
return InternalNewHandleClient(&grpcClient{c: c}, resource)
}
// InternalNewHandleClient is for use by the Google Cloud Libraries only.
//
// InternalNewHandleClient returns a Handle for resource using the given
// client implementation.
func InternalNewHandleClient(c client, resource string) *Handle {
return &Handle{
c: c,
resource: resource,
}
}
// V3 returns a Handle3, which is like Handle except it sets
// requestedPolicyVersion to 3 when retrieving a policy and policy.version to 3
// when storing a policy.
func (h *Handle) V3() *Handle3 {
return &Handle3{
c: h.c,
resource: h.resource,
version: 3,
}
}
// Policy retrieves the IAM policy for the resource.
func (h *Handle) Policy(ctx context.Context) (*Policy, error) {
proto, err := h.c.Get(ctx, h.resource)
if err != nil {
return nil, err
}
return &Policy{InternalProto: proto}, nil
}
// SetPolicy replaces the resource's current policy with the supplied Policy.
//
// If policy was created from a prior call to Get, then the modification will
// only succeed if the policy has not changed since the Get.
func (h *Handle) SetPolicy(ctx context.Context, policy *Policy) error {
return h.c.Set(ctx, h.resource, policy.InternalProto)
}
// TestPermissions returns the subset of permissions that the caller has on the resource.
func (h *Handle) TestPermissions(ctx context.Context, permissions []string) ([]string, error) {
return h.c.Test(ctx, h.resource, permissions)
}
// A RoleName is a name representing a collection of permissions.
type RoleName string
// Common role names.
const (
Owner RoleName = "roles/owner"
Editor RoleName = "roles/editor"
Viewer RoleName = "roles/viewer"
)
const (
// AllUsers is a special member that denotes all users, even unauthenticated ones.
AllUsers = "allUsers"
// AllAuthenticatedUsers is a special member that denotes all authenticated users.
AllAuthenticatedUsers = "allAuthenticatedUsers"
)
// A Policy is a list of Bindings representing roles
// granted to members.
//
// The zero Policy is a valid policy with no bindings.
type Policy struct {
// TODO(jba): when type aliases are available, put Policy into an internal package
// and provide an exported alias here.
// This field is exported for use by the Google Cloud Libraries only.
// It may become unexported in a future release.
InternalProto *pb.Policy
}
// Members returns the list of members with the supplied role.
// The return value should not be modified. Use Add and Remove
// to modify the members of a role.
func (p *Policy) Members(r RoleName) []string {
b := p.binding(r)
if b == nil {
return nil
}
return b.Members
}
// HasRole reports whether member has role r.
func (p *Policy) HasRole(member string, r RoleName) bool {
return memberIndex(member, p.binding(r)) >= 0
}
// Add adds member member to role r if it is not already present.
// A new binding is created if there is no binding for the role.
func (p *Policy) Add(member string, r RoleName) {
b := p.binding(r)
if b == nil {
if p.InternalProto == nil {
p.InternalProto = &pb.Policy{}
}
p.InternalProto.Bindings = append(p.InternalProto.Bindings, &pb.Binding{
Role: string(r),
Members: []string{member},
})
return
}
if memberIndex(member, b) < 0 {
b.Members = append(b.Members, member)
return
}
}
// Remove removes member from role r if it is present.
func (p *Policy) Remove(member string, r RoleName) {
bi := p.bindingIndex(r)
if bi < 0 {
return
}
bindings := p.InternalProto.Bindings
b := bindings[bi]
mi := memberIndex(member, b)
if mi < 0 {
return
}
// Order doesn't matter for bindings or members, so to remove, move the last item
// into the removed spot and shrink the slice.
if len(b.Members) == 1 {
// Remove binding.
last := len(bindings) - 1
bindings[bi] = bindings[last]
bindings[last] = nil
p.InternalProto.Bindings = bindings[:last]
return
}
// Remove member.
// TODO(jba): worry about multiple copies of m?
last := len(b.Members) - 1
b.Members[mi] = b.Members[last]
b.Members[last] = ""
b.Members = b.Members[:last]
}
// Roles returns the names of all the roles that appear in the Policy.
func (p *Policy) Roles() []RoleName {
if p.InternalProto == nil {
return nil
}
var rns []RoleName
for _, b := range p.InternalProto.Bindings {
rns = append(rns, RoleName(b.Role))
}
return rns
}
// binding returns the Binding for the suppied role, or nil if there isn't one.
func (p *Policy) binding(r RoleName) *pb.Binding {
i := p.bindingIndex(r)
if i < 0 {
return nil
}
return p.InternalProto.Bindings[i]
}
func (p *Policy) bindingIndex(r RoleName) int {
if p.InternalProto == nil {
return -1
}
for i, b := range p.InternalProto.Bindings {
if b.Role == string(r) {
return i
}
}
return -1
}
// memberIndex returns the index of m in b's Members, or -1 if not found.
func memberIndex(m string, b *pb.Binding) int {
if b == nil {
return -1
}
for i, mm := range b.Members {
if mm == m {
return i
}
}
return -1
}
// insertMetadata inserts metadata into the given context
func insertMetadata(ctx context.Context, mds ...metadata.MD) context.Context {
out, _ := metadata.FromOutgoingContext(ctx)
out = out.Copy()
for _, md := range mds {
for k, v := range md {
out[k] = append(out[k], v...)
}
}
return metadata.NewOutgoingContext(ctx, out)
}
// A Policy3 is a list of Bindings representing roles granted to members.
//
// The zero Policy3 is a valid policy with no bindings.
//
// It is similar to a Policy, except a Policy3 provides direct access to the
// list of Bindings.
//
// The policy version is always set to 3.
type Policy3 struct {
etag []byte
Bindings []*pb.Binding
}
// Policy retrieves the IAM policy for the resource.
//
// requestedPolicyVersion is always set to 3.
func (h *Handle3) Policy(ctx context.Context) (*Policy3, error) {
proto, err := h.c.GetWithVersion(ctx, h.resource, h.version)
if err != nil {
return nil, err
}
return &Policy3{
Bindings: proto.Bindings,
etag: proto.Etag,
}, nil
}
// SetPolicy replaces the resource's current policy with the supplied Policy.
//
// If policy was created from a prior call to Get, then the modification will
// only succeed if the policy has not changed since the Get.
func (h *Handle3) SetPolicy(ctx context.Context, policy *Policy3) error {
return h.c.Set(ctx, h.resource, &pb.Policy{
Bindings: policy.Bindings,
Etag: policy.etag,
Version: h.version,
})
}
// TestPermissions returns the subset of permissions that the caller has on the resource.
func (h *Handle3) TestPermissions(ctx context.Context, permissions []string) ([]string, error) {
return h.c.Test(ctx, h.resource, permissions)
}
-954
View File
@@ -1,954 +0,0 @@
{
"cloud.google.com/go/accessapproval/apiv1": {
"distribution_name": "cloud.google.com/go/accessapproval/apiv1",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/accessapproval/apiv1",
"release_level": "beta"
},
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"distribution_name": "cloud.google.com/go/analytics/admin/apiv1alpha",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/analytics/admin/apiv1alpha",
"release_level": "alpha"
},
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"distribution_name": "cloud.google.com/go/analytics/data/apiv1alpha",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/analytics/data/apiv1alpha",
"release_level": "alpha"
},
"cloud.google.com/go/area120/tables/apiv1alpha1": {
"distribution_name": "cloud.google.com/go/area120/tables/apiv1alpha1",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/area120/tables/apiv1alpha1",
"release_level": "alpha"
},
"cloud.google.com/go/artifactregistry/apiv1beta2": {
"distribution_name": "cloud.google.com/go/artifactregistry/apiv1beta2",
"description": "Artifact Registry API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/artifactregistry/apiv1beta2",
"release_level": "beta"
},
"cloud.google.com/go/asset/apiv1": {
"distribution_name": "cloud.google.com/go/asset/apiv1",
"description": "Cloud Asset API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/asset/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/asset/apiv1p2beta1": {
"distribution_name": "cloud.google.com/go/asset/apiv1p2beta1",
"description": "Cloud Asset API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/asset/apiv1p2beta1",
"release_level": "beta"
},
"cloud.google.com/go/asset/apiv1p5beta1": {
"distribution_name": "cloud.google.com/go/asset/apiv1p5beta1",
"description": "Cloud Asset API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/asset/apiv1p5beta1",
"release_level": "beta"
},
"cloud.google.com/go/assuredworkloads/apiv1beta1": {
"distribution_name": "cloud.google.com/go/assuredworkloads/apiv1beta1",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/assuredworkloads/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/automl/apiv1": {
"distribution_name": "cloud.google.com/go/automl/apiv1",
"description": "Cloud AutoML API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/automl/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/automl/apiv1beta1": {
"distribution_name": "cloud.google.com/go/automl/apiv1beta1",
"description": "Cloud AutoML API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/automl/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/bigquery": {
"distribution_name": "cloud.google.com/go/bigquery",
"description": "BigQuery",
"language": "Go",
"client_library_type": "manual",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery",
"release_level": "ga"
},
"cloud.google.com/go/bigquery/connection/apiv1": {
"distribution_name": "cloud.google.com/go/bigquery/connection/apiv1",
"description": "BigQuery Connection API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/connection/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/bigquery/connection/apiv1beta1": {
"distribution_name": "cloud.google.com/go/bigquery/connection/apiv1beta1",
"description": "BigQuery Connection API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/connection/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/bigquery/datatransfer/apiv1": {
"distribution_name": "cloud.google.com/go/bigquery/datatransfer/apiv1",
"description": "BigQuery Data Transfer API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/datatransfer/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/bigquery/reservation/apiv1": {
"distribution_name": "cloud.google.com/go/bigquery/reservation/apiv1",
"description": "BigQuery Reservation API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/reservation/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/bigquery/reservation/apiv1beta1": {
"distribution_name": "cloud.google.com/go/bigquery/reservation/apiv1beta1",
"description": "BigQuery Reservation API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/reservation/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/bigquery/storage/apiv1": {
"distribution_name": "cloud.google.com/go/bigquery/storage/apiv1",
"description": "BigQuery Storage API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/storage/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/bigquery/storage/apiv1alpha2": {
"distribution_name": "cloud.google.com/go/bigquery/storage/apiv1alpha2",
"description": "BigQuery Storage API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/storage/apiv1alpha2",
"release_level": "alpha"
},
"cloud.google.com/go/bigquery/storage/apiv1beta1": {
"distribution_name": "cloud.google.com/go/bigquery/storage/apiv1beta1",
"description": "BigQuery Storage API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/storage/apiv1beta1",
"release_level": "beta"
},
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"distribution_name": "cloud.google.com/go/bigquery/storage/apiv1beta2",
"description": "BigQuery Storage API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigquery/storage/apiv1beta2",
"release_level": "beta"
},
"cloud.google.com/go/bigtable": {
"distribution_name": "cloud.google.com/go/bigtable",
"description": "Cloud BigTable",
"language": "Go",
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"docs_url": "https://pkg.go.dev/cloud.google.com/go/bigtable",
"release_level": "ga"
},
"cloud.google.com/go/billing/apiv1": {
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"description": "Cloud Billing API",
"language": "Go",
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"docs_url": "https://pkg.go.dev/cloud.google.com/go/billing/apiv1",
"release_level": "ga"
},
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"description": "Cloud Billing Budget API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/billing/budgets/apiv1",
"release_level": "beta"
},
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},
"cloud.google.com/go/channel/apiv1": {
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"description": "Cloud Channel API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/channel/apiv1",
"release_level": "beta"
},
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"distribution_name": "cloud.google.com/go/cloudbuild/apiv1/v2",
"description": "Cloud Build API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/cloudbuild/apiv1/v2",
"release_level": "ga"
},
"cloud.google.com/go/cloudtasks/apiv2": {
"distribution_name": "cloud.google.com/go/cloudtasks/apiv2",
"description": "Cloud Tasks API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/cloudtasks/apiv2",
"release_level": "ga"
},
"cloud.google.com/go/cloudtasks/apiv2beta2": {
"distribution_name": "cloud.google.com/go/cloudtasks/apiv2beta2",
"description": "Cloud Tasks API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/cloudtasks/apiv2beta2",
"release_level": "beta"
},
"cloud.google.com/go/cloudtasks/apiv2beta3": {
"distribution_name": "cloud.google.com/go/cloudtasks/apiv2beta3",
"description": "Cloud Tasks API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/cloudtasks/apiv2beta3",
"release_level": "beta"
},
"cloud.google.com/go/container/apiv1": {
"distribution_name": "cloud.google.com/go/container/apiv1",
"description": "Kubernetes Engine API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/container/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/containeranalysis/apiv1beta1": {
"distribution_name": "cloud.google.com/go/containeranalysis/apiv1beta1",
"description": "Container Analysis API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/containeranalysis/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/datacatalog/apiv1": {
"distribution_name": "cloud.google.com/go/datacatalog/apiv1",
"description": "Google Cloud Data Catalog API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/datacatalog/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/datacatalog/apiv1beta1": {
"distribution_name": "cloud.google.com/go/datacatalog/apiv1beta1",
"description": "Google Cloud Data Catalog API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/datacatalog/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/dataproc/apiv1": {
"distribution_name": "cloud.google.com/go/dataproc/apiv1",
"description": "Cloud Dataproc API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/dataproc/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/dataproc/apiv1beta2": {
"distribution_name": "cloud.google.com/go/dataproc/apiv1beta2",
"description": "Cloud Dataproc API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/dataproc/apiv1beta2",
"release_level": "beta"
},
"cloud.google.com/go/datastore": {
"distribution_name": "cloud.google.com/go/datastore",
"description": "Cloud Datastore",
"language": "Go",
"client_library_type": "manual",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/datastore",
"release_level": "ga"
},
"cloud.google.com/go/datastore/admin/apiv1": {
"distribution_name": "cloud.google.com/go/datastore/admin/apiv1",
"description": "Cloud Datastore API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/datastore/admin/apiv1",
"release_level": "alpha"
},
"cloud.google.com/go/debugger/apiv2": {
"distribution_name": "cloud.google.com/go/debugger/apiv2",
"description": "Stackdriver Debugger API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/debugger/apiv2",
"release_level": "ga"
},
"cloud.google.com/go/dialogflow/apiv2": {
"distribution_name": "cloud.google.com/go/dialogflow/apiv2",
"description": "Dialogflow API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/dialogflow/apiv2",
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"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/translate/apiv3",
"release_level": "ga"
},
"cloud.google.com/go/video/transcoder/apiv1beta1": {
"distribution_name": "cloud.google.com/go/video/transcoder/apiv1beta1",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/video/transcoder/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/videointelligence/apiv1": {
"distribution_name": "cloud.google.com/go/videointelligence/apiv1",
"description": "Cloud Video Intelligence API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/videointelligence/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/videointelligence/apiv1beta2": {
"distribution_name": "cloud.google.com/go/videointelligence/apiv1beta2",
"description": "Google Cloud Video Intelligence API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/videointelligence/apiv1beta2",
"release_level": "beta"
},
"cloud.google.com/go/vision/apiv1": {
"distribution_name": "cloud.google.com/go/vision/apiv1",
"description": "Cloud Vision API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/vision/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/vision/apiv1p1beta1": {
"distribution_name": "cloud.google.com/go/vision/apiv1p1beta1",
"description": "Cloud Vision API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/vision/apiv1p1beta1",
"release_level": "beta"
},
"cloud.google.com/go/webrisk/apiv1": {
"distribution_name": "cloud.google.com/go/webrisk/apiv1",
"description": "Web Risk API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/webrisk/apiv1",
"release_level": "ga"
},
"cloud.google.com/go/webrisk/apiv1beta1": {
"distribution_name": "cloud.google.com/go/webrisk/apiv1beta1",
"description": "Web Risk API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/webrisk/apiv1beta1",
"release_level": "beta"
},
"cloud.google.com/go/websecurityscanner/apiv1": {
"distribution_name": "cloud.google.com/go/websecurityscanner/apiv1",
"description": "Web Security Scanner API",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/websecurityscanner/apiv1",
"release_level": "beta"
},
"cloud.google.com/go/workflows/apiv1beta": {
"distribution_name": "cloud.google.com/go/workflows/apiv1beta",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/workflows/apiv1beta",
"release_level": "beta"
},
"cloud.google.com/go/workflows/executions/apiv1beta": {
"distribution_name": "cloud.google.com/go/workflows/executions/apiv1beta",
"description": "",
"language": "Go",
"client_library_type": "generated",
"docs_url": "https://pkg.go.dev/cloud.google.com/go/workflows/executions/apiv1beta",
"release_level": "beta"
}
}
-18
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@@ -1,18 +0,0 @@
# Internal
This directory contains internal code for cloud.google.com/go packages.
## .repo-metadata-full.json
`.repo-metadata-full.json` contains metadata about the packages in this repo. It
is generated by `internal/gapicgen/generator`. It's processed by external tools
to build lists of all of the packages.
Don't make breaking changes to the format without consulting with the external
tools.
One day, we may want to create individual `.repo-metadata.json` files next to
each package, which is the pattern followed by some other languages. External
tools would then talk to pkg.go.dev or some other service to get the overall
list of packages and use the `.repo-metadata.json` files to get the additional
metadata required. For now, `.repo-metadata-full.json` includes everything.
-54
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@@ -1,54 +0,0 @@
// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal
import (
"fmt"
"google.golang.org/api/googleapi"
"google.golang.org/grpc/status"
)
// Annotate prepends msg to the error message in err, attempting
// to preserve other information in err, like an error code.
//
// Annotate panics if err is nil.
//
// Annotate knows about these error types:
// - "google.golang.org/grpc/status".Status
// - "google.golang.org/api/googleapi".Error
// If the error is not one of these types, Annotate behaves
// like
// fmt.Errorf("%s: %v", msg, err)
func Annotate(err error, msg string) error {
if err == nil {
panic("Annotate called with nil")
}
if s, ok := status.FromError(err); ok {
p := s.Proto()
p.Message = msg + ": " + p.Message
return status.ErrorProto(p)
}
if g, ok := err.(*googleapi.Error); ok {
g.Message = msg + ": " + g.Message
return g
}
return fmt.Errorf("%s: %v", msg, err)
}
// Annotatef uses format and args to format a string, then calls Annotate.
func Annotatef(err error, format string, args ...interface{}) error {
return Annotate(err, fmt.Sprintf(format, args...))
}
-108
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@@ -1,108 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package optional provides versions of primitive types that can
// be nil. These are useful in methods that update some of an API object's
// fields.
package optional
import (
"fmt"
"strings"
"time"
)
type (
// Bool is either a bool or nil.
Bool interface{}
// String is either a string or nil.
String interface{}
// Int is either an int or nil.
Int interface{}
// Uint is either a uint or nil.
Uint interface{}
// Float64 is either a float64 or nil.
Float64 interface{}
// Duration is either a time.Duration or nil.
Duration interface{}
)
// ToBool returns its argument as a bool.
// It panics if its argument is nil or not a bool.
func ToBool(v Bool) bool {
x, ok := v.(bool)
if !ok {
doPanic("Bool", v)
}
return x
}
// ToString returns its argument as a string.
// It panics if its argument is nil or not a string.
func ToString(v String) string {
x, ok := v.(string)
if !ok {
doPanic("String", v)
}
return x
}
// ToInt returns its argument as an int.
// It panics if its argument is nil or not an int.
func ToInt(v Int) int {
x, ok := v.(int)
if !ok {
doPanic("Int", v)
}
return x
}
// ToUint returns its argument as a uint.
// It panics if its argument is nil or not a uint.
func ToUint(v Uint) uint {
x, ok := v.(uint)
if !ok {
doPanic("Uint", v)
}
return x
}
// ToFloat64 returns its argument as a float64.
// It panics if its argument is nil or not a float64.
func ToFloat64(v Float64) float64 {
x, ok := v.(float64)
if !ok {
doPanic("Float64", v)
}
return x
}
// ToDuration returns its argument as a time.Duration.
// It panics if its argument is nil or not a time.Duration.
func ToDuration(v Duration) time.Duration {
x, ok := v.(time.Duration)
if !ok {
doPanic("Duration", v)
}
return x
}
func doPanic(capType string, v interface{}) {
panic(fmt.Sprintf("optional.%s value should be %s, got %T", capType, strings.ToLower(capType), v))
}
-54
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@@ -1,54 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal
import (
"context"
"time"
gax "github.com/googleapis/gax-go/v2"
)
// Retry calls the supplied function f repeatedly according to the provided
// backoff parameters. It returns when one of the following occurs:
// When f's first return value is true, Retry immediately returns with f's second
// return value.
// When the provided context is done, Retry returns with an error that
// includes both ctx.Error() and the last error returned by f.
func Retry(ctx context.Context, bo gax.Backoff, f func() (stop bool, err error)) error {
return retry(ctx, bo, f, gax.Sleep)
}
func retry(ctx context.Context, bo gax.Backoff, f func() (stop bool, err error),
sleep func(context.Context, time.Duration) error) error {
var lastErr error
for {
stop, err := f()
if stop {
return err
}
// Remember the last "real" error from f.
if err != nil && err != context.Canceled && err != context.DeadlineExceeded {
lastErr = err
}
p := bo.Pause()
if cerr := sleep(ctx, p); cerr != nil {
if lastErr != nil {
return Annotatef(lastErr, "retry failed with %v; last error", cerr)
}
return cerr
}
}
}
-109
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@@ -1,109 +0,0 @@
// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package trace
import (
"context"
"fmt"
"go.opencensus.io/trace"
"google.golang.org/api/googleapi"
"google.golang.org/genproto/googleapis/rpc/code"
"google.golang.org/grpc/status"
)
// StartSpan adds a span to the trace with the given name.
func StartSpan(ctx context.Context, name string) context.Context {
ctx, _ = trace.StartSpan(ctx, name)
return ctx
}
// EndSpan ends a span with the given error.
func EndSpan(ctx context.Context, err error) {
span := trace.FromContext(ctx)
if err != nil {
span.SetStatus(toStatus(err))
}
span.End()
}
// toStatus interrogates an error and converts it to an appropriate
// OpenCensus status.
func toStatus(err error) trace.Status {
if err2, ok := err.(*googleapi.Error); ok {
return trace.Status{Code: httpStatusCodeToOCCode(err2.Code), Message: err2.Message}
} else if s, ok := status.FromError(err); ok {
return trace.Status{Code: int32(s.Code()), Message: s.Message()}
} else {
return trace.Status{Code: int32(code.Code_UNKNOWN), Message: err.Error()}
}
}
// TODO(deklerk): switch to using OpenCensus function when it becomes available.
// Reference: https://github.com/googleapis/googleapis/blob/26b634d2724ac5dd30ae0b0cbfb01f07f2e4050e/google/rpc/code.proto
func httpStatusCodeToOCCode(httpStatusCode int) int32 {
switch httpStatusCode {
case 200:
return int32(code.Code_OK)
case 499:
return int32(code.Code_CANCELLED)
case 500:
return int32(code.Code_UNKNOWN) // Could also be Code_INTERNAL, Code_DATA_LOSS
case 400:
return int32(code.Code_INVALID_ARGUMENT) // Could also be Code_OUT_OF_RANGE
case 504:
return int32(code.Code_DEADLINE_EXCEEDED)
case 404:
return int32(code.Code_NOT_FOUND)
case 409:
return int32(code.Code_ALREADY_EXISTS) // Could also be Code_ABORTED
case 403:
return int32(code.Code_PERMISSION_DENIED)
case 401:
return int32(code.Code_UNAUTHENTICATED)
case 429:
return int32(code.Code_RESOURCE_EXHAUSTED)
case 501:
return int32(code.Code_UNIMPLEMENTED)
case 503:
return int32(code.Code_UNAVAILABLE)
default:
return int32(code.Code_UNKNOWN)
}
}
// TODO: (odeke-em): perhaps just pass around spans due to the cost
// incurred from using trace.FromContext(ctx) yet we could avoid
// throwing away the work done by ctx, span := trace.StartSpan.
func TracePrintf(ctx context.Context, attrMap map[string]interface{}, format string, args ...interface{}) {
var attrs []trace.Attribute
for k, v := range attrMap {
var a trace.Attribute
switch v := v.(type) {
case string:
a = trace.StringAttribute(k, v)
case bool:
a = trace.BoolAttribute(k, v)
case int:
a = trace.Int64Attribute(k, int64(v))
case int64:
a = trace.Int64Attribute(k, v)
default:
a = trace.StringAttribute(k, fmt.Sprintf("%#v", v))
}
attrs = append(attrs, a)
}
trace.FromContext(ctx).Annotatef(attrs, format, args...)
}
-19
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@@ -1,19 +0,0 @@
#!/bin/bash
# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
today=$(date +%Y%m%d)
sed -i -r -e 's/const Repo = "([0-9]{8})"/const Repo = "'$today'"/' $GOFILE
-71
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@@ -1,71 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:generate ./update_version.sh
// Package version contains version information for Google Cloud Client
// Libraries for Go, as reported in request headers.
package version
import (
"runtime"
"strings"
"unicode"
)
// Repo is the current version of the client libraries in this
// repo. It should be a date in YYYYMMDD format.
const Repo = "20201104"
// Go returns the Go runtime version. The returned string
// has no whitespace.
func Go() string {
return goVersion
}
var goVersion = goVer(runtime.Version())
const develPrefix = "devel +"
func goVer(s string) string {
if strings.HasPrefix(s, develPrefix) {
s = s[len(develPrefix):]
if p := strings.IndexFunc(s, unicode.IsSpace); p >= 0 {
s = s[:p]
}
return s
}
if strings.HasPrefix(s, "go1") {
s = s[2:]
var prerelease string
if p := strings.IndexFunc(s, notSemverRune); p >= 0 {
s, prerelease = s[:p], s[p:]
}
if strings.HasSuffix(s, ".") {
s += "0"
} else if strings.Count(s, ".") < 2 {
s += ".0"
}
if prerelease != "" {
s += "-" + prerelease
}
return s
}
return ""
}
func notSemverRune(r rune) bool {
return !strings.ContainsRune("0123456789.", r)
}
-107
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@@ -1,107 +0,0 @@
# Changes
## [1.13.0](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.12.0...v1.13.0) (2021-02-03)
### Features
* **storage:** add missing StorageClass in BucketAttrsToUpdate ([#3038](https://www.github.com/googleapis/google-cloud-go/issues/3038)) ([2fa1b72](https://www.github.com/googleapis/google-cloud-go/commit/2fa1b727f8a7b20aa62fe0990530744f6c109be0))
* **storage:** add projection parameter for BucketHandle.Objects() ([#3549](https://www.github.com/googleapis/google-cloud-go/issues/3549)) ([9b9c3dc](https://www.github.com/googleapis/google-cloud-go/commit/9b9c3dce3ee10af5b6c4d070821bf47a861efd5b))
### Bug Fixes
* **storage:** fix endpoint selection logic ([#3172](https://www.github.com/googleapis/google-cloud-go/issues/3172)) ([99edf0d](https://www.github.com/googleapis/google-cloud-go/commit/99edf0d211a9e617f2586fbc83b6f9630da3c537))
## v1.12.0
- V4 signed URL fixes:
- Fix encoding of spaces in query parameters.
- Add fields that were missing from PostPolicyV4 policy conditions.
- Fix Query to correctly list prefixes as well as objects when SetAttrSelection
is used.
## v1.11.0
- Add support for CustomTime and NoncurrentTime object lifecycle management
features.
## v1.10.0
- Bump dependency on google.golang.org/api to capture changes to retry logic
which will make retries on writes more resilient.
- Improve documentation for Writer.ChunkSize.
- Fix a bug in lifecycle to allow callers to clear lifecycle rules on a bucket.
## v1.9.0
- Add retry for transient network errors on most operations (with the exception
of writes).
- Bump dependency for google.golang.org/api to capture a change in the default
HTTP transport which will improve performance for reads under heavy load.
- Add CRC32C checksum validation option to Composer.
## v1.8.0
- Add support for V4 signed post policies.
## v1.7.0
- V4 signed URL support:
- Add support for bucket-bound domains and virtual hosted style URLs.
- Add support for query parameters in the signature.
- Fix text encoding to align with standards.
- Add the object name to query parameters for write calls.
- Fix retry behavior when reading files with Content-Encoding gzip.
- Fix response header in reader.
- New code examples:
- Error handling for `ObjectHandle` preconditions.
- Existence checks for buckets and objects.
## v1.6.0
- Updated option handling:
- Don't drop custom scopes (#1756)
- Don't drop port in provided endpoint (#1737)
## v1.5.0
- Honor WithEndpoint client option for reads as well as writes.
- Add archive storage class to docs.
- Make fixes to storage benchwrapper.
## v1.4.0
- When listing objects in a bucket, allow callers to specify which attributes
are queried. This allows for performance optimization.
## v1.3.0
- Use `storage.googleapis.com/storage/v1` by default for GCS requests
instead of `www.googleapis.com/storage/v1`.
## v1.2.1
- Fixed a bug where UniformBucketLevelAccess and BucketPolicyOnly were not
being sent in all cases.
## v1.2.0
- Add support for UniformBucketLevelAccess. This configures access checks
to use only bucket-level IAM policies.
See: https://godoc.org/cloud.google.com/go/storage#UniformBucketLevelAccess.
- Fix userAgent to use correct version.
## v1.1.2
- Fix memory leak in BucketIterator and ObjectIterator.
## v1.1.1
- Send BucketPolicyOnly even when it's disabled.
## v1.1.0
- Performance improvements for ObjectIterator and BucketIterator.
- Fix Bucket.ObjectIterator size calculation checks.
- Added HMACKeyOptions to all the methods which allows for options such as
UserProject to be set per invocation and optionally be used.
## v1.0.0
This is the first tag to carve out storage as its own module. See:
https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository.
-202
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@@ -1,202 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
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Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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-32
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## Cloud Storage [![Go Reference](https://pkg.go.dev/badge/cloud.google.com/go/storage.svg)](https://pkg.go.dev/cloud.google.com/go/storage)
- [About Cloud Storage](https://cloud.google.com/storage/)
- [API documentation](https://cloud.google.com/storage/docs)
- [Go client documentation](https://pkg.go.dev/cloud.google.com/go/storage)
- [Complete sample programs](https://github.com/GoogleCloudPlatform/golang-samples/tree/master/storage)
### Example Usage
First create a `storage.Client` to use throughout your application:
[snip]:# (storage-1)
```go
client, err := storage.NewClient(ctx)
if err != nil {
log.Fatal(err)
}
```
[snip]:# (storage-2)
```go
// Read the object1 from bucket.
rc, err := client.Bucket("bucket").Object("object1").NewReader(ctx)
if err != nil {
log.Fatal(err)
}
defer rc.Close()
body, err := ioutil.ReadAll(rc)
if err != nil {
log.Fatal(err)
}
```
-335
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@@ -1,335 +0,0 @@
// Copyright 2014 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"net/http"
"reflect"
"cloud.google.com/go/internal/trace"
"google.golang.org/api/googleapi"
raw "google.golang.org/api/storage/v1"
)
// ACLRole is the level of access to grant.
type ACLRole string
const (
RoleOwner ACLRole = "OWNER"
RoleReader ACLRole = "READER"
RoleWriter ACLRole = "WRITER"
)
// ACLEntity refers to a user or group.
// They are sometimes referred to as grantees.
//
// It could be in the form of:
// "user-<userId>", "user-<email>", "group-<groupId>", "group-<email>",
// "domain-<domain>" and "project-team-<projectId>".
//
// Or one of the predefined constants: AllUsers, AllAuthenticatedUsers.
type ACLEntity string
const (
AllUsers ACLEntity = "allUsers"
AllAuthenticatedUsers ACLEntity = "allAuthenticatedUsers"
)
// ACLRule represents a grant for a role to an entity (user, group or team) for a
// Google Cloud Storage object or bucket.
type ACLRule struct {
Entity ACLEntity
EntityID string
Role ACLRole
Domain string
Email string
ProjectTeam *ProjectTeam
}
// ProjectTeam is the project team associated with the entity, if any.
type ProjectTeam struct {
ProjectNumber string
Team string
}
// ACLHandle provides operations on an access control list for a Google Cloud Storage bucket or object.
type ACLHandle struct {
c *Client
bucket string
object string
isDefault bool
userProject string // for requester-pays buckets
}
// Delete permanently deletes the ACL entry for the given entity.
func (a *ACLHandle) Delete(ctx context.Context, entity ACLEntity) (err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.ACL.Delete")
defer func() { trace.EndSpan(ctx, err) }()
if a.object != "" {
return a.objectDelete(ctx, entity)
}
if a.isDefault {
return a.bucketDefaultDelete(ctx, entity)
}
return a.bucketDelete(ctx, entity)
}
// Set sets the role for the given entity.
func (a *ACLHandle) Set(ctx context.Context, entity ACLEntity, role ACLRole) (err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.ACL.Set")
defer func() { trace.EndSpan(ctx, err) }()
if a.object != "" {
return a.objectSet(ctx, entity, role, false)
}
if a.isDefault {
return a.objectSet(ctx, entity, role, true)
}
return a.bucketSet(ctx, entity, role)
}
// List retrieves ACL entries.
func (a *ACLHandle) List(ctx context.Context) (rules []ACLRule, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.ACL.List")
defer func() { trace.EndSpan(ctx, err) }()
if a.object != "" {
return a.objectList(ctx)
}
if a.isDefault {
return a.bucketDefaultList(ctx)
}
return a.bucketList(ctx)
}
func (a *ACLHandle) bucketDefaultList(ctx context.Context) ([]ACLRule, error) {
var acls *raw.ObjectAccessControls
var err error
err = runWithRetry(ctx, func() error {
req := a.c.raw.DefaultObjectAccessControls.List(a.bucket)
a.configureCall(ctx, req)
acls, err = req.Do()
return err
})
if err != nil {
return nil, err
}
return toObjectACLRules(acls.Items), nil
}
func (a *ACLHandle) bucketDefaultDelete(ctx context.Context, entity ACLEntity) error {
return runWithRetry(ctx, func() error {
req := a.c.raw.DefaultObjectAccessControls.Delete(a.bucket, string(entity))
a.configureCall(ctx, req)
return req.Do()
})
}
func (a *ACLHandle) bucketList(ctx context.Context) ([]ACLRule, error) {
var acls *raw.BucketAccessControls
var err error
err = runWithRetry(ctx, func() error {
req := a.c.raw.BucketAccessControls.List(a.bucket)
a.configureCall(ctx, req)
acls, err = req.Do()
return err
})
if err != nil {
return nil, err
}
return toBucketACLRules(acls.Items), nil
}
func (a *ACLHandle) bucketSet(ctx context.Context, entity ACLEntity, role ACLRole) error {
acl := &raw.BucketAccessControl{
Bucket: a.bucket,
Entity: string(entity),
Role: string(role),
}
err := runWithRetry(ctx, func() error {
req := a.c.raw.BucketAccessControls.Update(a.bucket, string(entity), acl)
a.configureCall(ctx, req)
_, err := req.Do()
return err
})
if err != nil {
return err
}
return nil
}
func (a *ACLHandle) bucketDelete(ctx context.Context, entity ACLEntity) error {
return runWithRetry(ctx, func() error {
req := a.c.raw.BucketAccessControls.Delete(a.bucket, string(entity))
a.configureCall(ctx, req)
return req.Do()
})
}
func (a *ACLHandle) objectList(ctx context.Context) ([]ACLRule, error) {
var acls *raw.ObjectAccessControls
var err error
err = runWithRetry(ctx, func() error {
req := a.c.raw.ObjectAccessControls.List(a.bucket, a.object)
a.configureCall(ctx, req)
acls, err = req.Do()
return err
})
if err != nil {
return nil, err
}
return toObjectACLRules(acls.Items), nil
}
func (a *ACLHandle) objectSet(ctx context.Context, entity ACLEntity, role ACLRole, isBucketDefault bool) error {
type setRequest interface {
Do(opts ...googleapi.CallOption) (*raw.ObjectAccessControl, error)
Header() http.Header
}
acl := &raw.ObjectAccessControl{
Bucket: a.bucket,
Entity: string(entity),
Role: string(role),
}
var req setRequest
if isBucketDefault {
req = a.c.raw.DefaultObjectAccessControls.Update(a.bucket, string(entity), acl)
} else {
req = a.c.raw.ObjectAccessControls.Update(a.bucket, a.object, string(entity), acl)
}
a.configureCall(ctx, req)
return runWithRetry(ctx, func() error {
_, err := req.Do()
return err
})
}
func (a *ACLHandle) objectDelete(ctx context.Context, entity ACLEntity) error {
return runWithRetry(ctx, func() error {
req := a.c.raw.ObjectAccessControls.Delete(a.bucket, a.object, string(entity))
a.configureCall(ctx, req)
return req.Do()
})
}
func (a *ACLHandle) configureCall(ctx context.Context, call interface{ Header() http.Header }) {
vc := reflect.ValueOf(call)
vc.MethodByName("Context").Call([]reflect.Value{reflect.ValueOf(ctx)})
if a.userProject != "" {
vc.MethodByName("UserProject").Call([]reflect.Value{reflect.ValueOf(a.userProject)})
}
setClientHeader(call.Header())
}
func toObjectACLRules(items []*raw.ObjectAccessControl) []ACLRule {
var rs []ACLRule
for _, item := range items {
rs = append(rs, toObjectACLRule(item))
}
return rs
}
func toBucketACLRules(items []*raw.BucketAccessControl) []ACLRule {
var rs []ACLRule
for _, item := range items {
rs = append(rs, toBucketACLRule(item))
}
return rs
}
func toObjectACLRule(a *raw.ObjectAccessControl) ACLRule {
return ACLRule{
Entity: ACLEntity(a.Entity),
EntityID: a.EntityId,
Role: ACLRole(a.Role),
Domain: a.Domain,
Email: a.Email,
ProjectTeam: toObjectProjectTeam(a.ProjectTeam),
}
}
func toBucketACLRule(a *raw.BucketAccessControl) ACLRule {
return ACLRule{
Entity: ACLEntity(a.Entity),
EntityID: a.EntityId,
Role: ACLRole(a.Role),
Domain: a.Domain,
Email: a.Email,
ProjectTeam: toBucketProjectTeam(a.ProjectTeam),
}
}
func toRawObjectACL(rules []ACLRule) []*raw.ObjectAccessControl {
if len(rules) == 0 {
return nil
}
r := make([]*raw.ObjectAccessControl, 0, len(rules))
for _, rule := range rules {
r = append(r, rule.toRawObjectAccessControl("")) // bucket name unnecessary
}
return r
}
func toRawBucketACL(rules []ACLRule) []*raw.BucketAccessControl {
if len(rules) == 0 {
return nil
}
r := make([]*raw.BucketAccessControl, 0, len(rules))
for _, rule := range rules {
r = append(r, rule.toRawBucketAccessControl("")) // bucket name unnecessary
}
return r
}
func (r ACLRule) toRawBucketAccessControl(bucket string) *raw.BucketAccessControl {
return &raw.BucketAccessControl{
Bucket: bucket,
Entity: string(r.Entity),
Role: string(r.Role),
// The other fields are not settable.
}
}
func (r ACLRule) toRawObjectAccessControl(bucket string) *raw.ObjectAccessControl {
return &raw.ObjectAccessControl{
Bucket: bucket,
Entity: string(r.Entity),
Role: string(r.Role),
// The other fields are not settable.
}
}
func toBucketProjectTeam(p *raw.BucketAccessControlProjectTeam) *ProjectTeam {
if p == nil {
return nil
}
return &ProjectTeam{
ProjectNumber: p.ProjectNumber,
Team: p.Team,
}
}
func toObjectProjectTeam(p *raw.ObjectAccessControlProjectTeam) *ProjectTeam {
if p == nil {
return nil
}
return &ProjectTeam{
ProjectNumber: p.ProjectNumber,
Team: p.Team,
}
}
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-238
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@@ -1,238 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"errors"
"fmt"
"cloud.google.com/go/internal/trace"
raw "google.golang.org/api/storage/v1"
)
// CopierFrom creates a Copier that can copy src to dst.
// You can immediately call Run on the returned Copier, or
// you can configure it first.
//
// For Requester Pays buckets, the user project of dst is billed, unless it is empty,
// in which case the user project of src is billed.
func (dst *ObjectHandle) CopierFrom(src *ObjectHandle) *Copier {
return &Copier{dst: dst, src: src}
}
// A Copier copies a source object to a destination.
type Copier struct {
// ObjectAttrs are optional attributes to set on the destination object.
// Any attributes must be initialized before any calls on the Copier. Nil
// or zero-valued attributes are ignored.
ObjectAttrs
// RewriteToken can be set before calling Run to resume a copy
// operation. After Run returns a non-nil error, RewriteToken will
// have been updated to contain the value needed to resume the copy.
RewriteToken string
// ProgressFunc can be used to monitor the progress of a multi-RPC copy
// operation. If ProgressFunc is not nil and copying requires multiple
// calls to the underlying service (see
// https://cloud.google.com/storage/docs/json_api/v1/objects/rewrite), then
// ProgressFunc will be invoked after each call with the number of bytes of
// content copied so far and the total size in bytes of the source object.
//
// ProgressFunc is intended to make upload progress available to the
// application. For example, the implementation of ProgressFunc may update
// a progress bar in the application's UI, or log the result of
// float64(copiedBytes)/float64(totalBytes).
//
// ProgressFunc should return quickly without blocking.
ProgressFunc func(copiedBytes, totalBytes uint64)
// The Cloud KMS key, in the form projects/P/locations/L/keyRings/R/cryptoKeys/K,
// that will be used to encrypt the object. Overrides the object's KMSKeyName, if
// any.
//
// Providing both a DestinationKMSKeyName and a customer-supplied encryption key
// (via ObjectHandle.Key) on the destination object will result in an error when
// Run is called.
DestinationKMSKeyName string
dst, src *ObjectHandle
}
// Run performs the copy.
func (c *Copier) Run(ctx context.Context) (attrs *ObjectAttrs, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Copier.Run")
defer func() { trace.EndSpan(ctx, err) }()
if err := c.src.validate(); err != nil {
return nil, err
}
if err := c.dst.validate(); err != nil {
return nil, err
}
if c.DestinationKMSKeyName != "" && c.dst.encryptionKey != nil {
return nil, errors.New("storage: cannot use DestinationKMSKeyName with a customer-supplied encryption key")
}
// Convert destination attributes to raw form, omitting the bucket.
// If the bucket is included but name or content-type aren't, the service
// returns a 400 with "Required" as the only message. Omitting the bucket
// does not cause any problems.
rawObject := c.ObjectAttrs.toRawObject("")
for {
res, err := c.callRewrite(ctx, rawObject)
if err != nil {
return nil, err
}
if c.ProgressFunc != nil {
c.ProgressFunc(uint64(res.TotalBytesRewritten), uint64(res.ObjectSize))
}
if res.Done { // Finished successfully.
return newObject(res.Resource), nil
}
}
}
func (c *Copier) callRewrite(ctx context.Context, rawObj *raw.Object) (*raw.RewriteResponse, error) {
call := c.dst.c.raw.Objects.Rewrite(c.src.bucket, c.src.object, c.dst.bucket, c.dst.object, rawObj)
call.Context(ctx).Projection("full")
if c.RewriteToken != "" {
call.RewriteToken(c.RewriteToken)
}
if c.DestinationKMSKeyName != "" {
call.DestinationKmsKeyName(c.DestinationKMSKeyName)
}
if c.PredefinedACL != "" {
call.DestinationPredefinedAcl(c.PredefinedACL)
}
if err := applyConds("Copy destination", c.dst.gen, c.dst.conds, call); err != nil {
return nil, err
}
if c.dst.userProject != "" {
call.UserProject(c.dst.userProject)
} else if c.src.userProject != "" {
call.UserProject(c.src.userProject)
}
if err := applySourceConds(c.src.gen, c.src.conds, call); err != nil {
return nil, err
}
if err := setEncryptionHeaders(call.Header(), c.dst.encryptionKey, false); err != nil {
return nil, err
}
if err := setEncryptionHeaders(call.Header(), c.src.encryptionKey, true); err != nil {
return nil, err
}
var res *raw.RewriteResponse
var err error
setClientHeader(call.Header())
err = runWithRetry(ctx, func() error { res, err = call.Do(); return err })
if err != nil {
return nil, err
}
c.RewriteToken = res.RewriteToken
return res, nil
}
// ComposerFrom creates a Composer that can compose srcs into dst.
// You can immediately call Run on the returned Composer, or you can
// configure it first.
//
// The encryption key for the destination object will be used to decrypt all
// source objects and encrypt the destination object. It is an error
// to specify an encryption key for any of the source objects.
func (dst *ObjectHandle) ComposerFrom(srcs ...*ObjectHandle) *Composer {
return &Composer{dst: dst, srcs: srcs}
}
// A Composer composes source objects into a destination object.
//
// For Requester Pays buckets, the user project of dst is billed.
type Composer struct {
// ObjectAttrs are optional attributes to set on the destination object.
// Any attributes must be initialized before any calls on the Composer. Nil
// or zero-valued attributes are ignored.
ObjectAttrs
// SendCRC specifies whether to transmit a CRC32C field. It should be set
// to true in addition to setting the Composer's CRC32C field, because zero
// is a valid CRC and normally a zero would not be transmitted.
// If a CRC32C is sent, and the data in the destination object does not match
// the checksum, the compose will be rejected.
SendCRC32C bool
dst *ObjectHandle
srcs []*ObjectHandle
}
// Run performs the compose operation.
func (c *Composer) Run(ctx context.Context) (attrs *ObjectAttrs, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Composer.Run")
defer func() { trace.EndSpan(ctx, err) }()
if err := c.dst.validate(); err != nil {
return nil, err
}
if len(c.srcs) == 0 {
return nil, errors.New("storage: at least one source object must be specified")
}
req := &raw.ComposeRequest{}
// Compose requires a non-empty Destination, so we always set it,
// even if the caller-provided ObjectAttrs is the zero value.
req.Destination = c.ObjectAttrs.toRawObject(c.dst.bucket)
if c.SendCRC32C {
req.Destination.Crc32c = encodeUint32(c.ObjectAttrs.CRC32C)
}
for _, src := range c.srcs {
if err := src.validate(); err != nil {
return nil, err
}
if src.bucket != c.dst.bucket {
return nil, fmt.Errorf("storage: all source objects must be in bucket %q, found %q", c.dst.bucket, src.bucket)
}
if src.encryptionKey != nil {
return nil, fmt.Errorf("storage: compose source %s.%s must not have encryption key", src.bucket, src.object)
}
srcObj := &raw.ComposeRequestSourceObjects{
Name: src.object,
}
if err := applyConds("ComposeFrom source", src.gen, src.conds, composeSourceObj{srcObj}); err != nil {
return nil, err
}
req.SourceObjects = append(req.SourceObjects, srcObj)
}
call := c.dst.c.raw.Objects.Compose(c.dst.bucket, c.dst.object, req).Context(ctx)
if err := applyConds("ComposeFrom destination", c.dst.gen, c.dst.conds, call); err != nil {
return nil, err
}
if c.dst.userProject != "" {
call.UserProject(c.dst.userProject)
}
if c.PredefinedACL != "" {
call.DestinationPredefinedAcl(c.PredefinedACL)
}
if err := setEncryptionHeaders(call.Header(), c.dst.encryptionKey, false); err != nil {
return nil, err
}
var obj *raw.Object
setClientHeader(call.Header())
err = runWithRetry(ctx, func() error { obj, err = call.Do(); return err })
if err != nil {
return nil, err
}
return newObject(obj), nil
}
-231
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@@ -1,231 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*
Package storage provides an easy way to work with Google Cloud Storage.
Google Cloud Storage stores data in named objects, which are grouped into buckets.
More information about Google Cloud Storage is available at
https://cloud.google.com/storage/docs.
See https://godoc.org/cloud.google.com/go for authentication, timeouts,
connection pooling and similar aspects of this package.
All of the methods of this package use exponential backoff to retry calls that fail
with certain errors, as described in
https://cloud.google.com/storage/docs/exponential-backoff. Retrying continues
indefinitely unless the controlling context is canceled or the client is closed. See
context.WithTimeout and context.WithCancel.
Creating a Client
To start working with this package, create a client:
ctx := context.Background()
client, err := storage.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
The client will use your default application credentials. Clients should be
reused instead of created as needed. The methods of Client are safe for
concurrent use by multiple goroutines.
If you only wish to access public data, you can create
an unauthenticated client with
client, err := storage.NewClient(ctx, option.WithoutAuthentication())
Buckets
A Google Cloud Storage bucket is a collection of objects. To work with a
bucket, make a bucket handle:
bkt := client.Bucket(bucketName)
A handle is a reference to a bucket. You can have a handle even if the
bucket doesn't exist yet. To create a bucket in Google Cloud Storage,
call Create on the handle:
if err := bkt.Create(ctx, projectID, nil); err != nil {
// TODO: Handle error.
}
Note that although buckets are associated with projects, bucket names are
global across all projects.
Each bucket has associated metadata, represented in this package by
BucketAttrs. The third argument to BucketHandle.Create allows you to set
the initial BucketAttrs of a bucket. To retrieve a bucket's attributes, use
Attrs:
attrs, err := bkt.Attrs(ctx)
if err != nil {
// TODO: Handle error.
}
fmt.Printf("bucket %s, created at %s, is located in %s with storage class %s\n",
attrs.Name, attrs.Created, attrs.Location, attrs.StorageClass)
Objects
An object holds arbitrary data as a sequence of bytes, like a file. You
refer to objects using a handle, just as with buckets, but unlike buckets
you don't explicitly create an object. Instead, the first time you write
to an object it will be created. You can use the standard Go io.Reader
and io.Writer interfaces to read and write object data:
obj := bkt.Object("data")
// Write something to obj.
// w implements io.Writer.
w := obj.NewWriter(ctx)
// Write some text to obj. This will either create the object or overwrite whatever is there already.
if _, err := fmt.Fprintf(w, "This object contains text.\n"); err != nil {
// TODO: Handle error.
}
// Close, just like writing a file.
if err := w.Close(); err != nil {
// TODO: Handle error.
}
// Read it back.
r, err := obj.NewReader(ctx)
if err != nil {
// TODO: Handle error.
}
defer r.Close()
if _, err := io.Copy(os.Stdout, r); err != nil {
// TODO: Handle error.
}
// Prints "This object contains text."
Objects also have attributes, which you can fetch with Attrs:
objAttrs, err := obj.Attrs(ctx)
if err != nil {
// TODO: Handle error.
}
fmt.Printf("object %s has size %d and can be read using %s\n",
objAttrs.Name, objAttrs.Size, objAttrs.MediaLink)
Listing objects
Listing objects in a bucket is done with the Bucket.Objects method:
query := &storage.Query{Prefix: ""}
var names []string
it := bkt.Objects(ctx, query)
for {
attrs, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
log.Fatal(err)
}
names = append(names, attrs.Name)
}
Objects are listed lexicographically by name. To filter objects
lexicographically, Query.StartOffset and/or Query.EndOffset can be used:
query := &storage.Query{
Prefix: "",
StartOffset: "bar/", // Only list objects lexicographically >= "bar/"
EndOffset: "foo/", // Only list objects lexicographically < "foo/"
}
// ... as before
If only a subset of object attributes is needed when listing, specifying this
subset using Query.SetAttrSelection may speed up the listing process:
query := &storage.Query{Prefix: ""}
query.SetAttrSelection([]string{"Name"})
// ... as before
ACLs
Both objects and buckets have ACLs (Access Control Lists). An ACL is a list of
ACLRules, each of which specifies the role of a user, group or project. ACLs
are suitable for fine-grained control, but you may prefer using IAM to control
access at the project level (see
https://cloud.google.com/storage/docs/access-control/iam).
To list the ACLs of a bucket or object, obtain an ACLHandle and call its List method:
acls, err := obj.ACL().List(ctx)
if err != nil {
// TODO: Handle error.
}
for _, rule := range acls {
fmt.Printf("%s has role %s\n", rule.Entity, rule.Role)
}
You can also set and delete ACLs.
Conditions
Every object has a generation and a metageneration. The generation changes
whenever the content changes, and the metageneration changes whenever the
metadata changes. Conditions let you check these values before an operation;
the operation only executes if the conditions match. You can use conditions to
prevent race conditions in read-modify-write operations.
For example, say you've read an object's metadata into objAttrs. Now
you want to write to that object, but only if its contents haven't changed
since you read it. Here is how to express that:
w = obj.If(storage.Conditions{GenerationMatch: objAttrs.Generation}).NewWriter(ctx)
// Proceed with writing as above.
Signed URLs
You can obtain a URL that lets anyone read or write an object for a limited time.
You don't need to create a client to do this. See the documentation of
SignedURL for details.
url, err := storage.SignedURL(bucketName, "shared-object", opts)
if err != nil {
// TODO: Handle error.
}
fmt.Println(url)
Post Policy V4 Signed Request
A type of signed request that allows uploads through HTML forms directly to Cloud Storage with
temporary permission. Conditions can be applied to restrict how the HTML form is used and exercised
by a user.
For more information, please see https://cloud.google.com/storage/docs/xml-api/post-object as well
as the documentation of GenerateSignedPostPolicyV4.
pv4, err := storage.GenerateSignedPostPolicyV4(bucketName, objectName, opts)
if err != nil {
// TODO: Handle error.
}
fmt.Printf("URL: %s\nFields; %v\n", pv4.URL, pv4.Fields)
Errors
Errors returned by this client are often of the type [`googleapi.Error`](https://godoc.org/google.golang.org/api/googleapi#Error).
These errors can be introspected for more information by type asserting to the richer `googleapi.Error` type. For example:
if e, ok := err.(*googleapi.Error); ok {
if e.Code == 409 { ... }
}
*/
package storage // import "cloud.google.com/go/storage"
-17
View File
@@ -1,17 +0,0 @@
module cloud.google.com/go/storage
go 1.11
require (
cloud.google.com/go v0.75.0
github.com/golang/protobuf v1.4.3
github.com/google/go-cmp v0.5.4
github.com/googleapis/gax-go/v2 v2.0.5
golang.org/x/mod v0.4.1 // indirect
golang.org/x/oauth2 v0.0.0-20210113205817-d3ed898aa8a3
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c // indirect
golang.org/x/tools v0.1.0 // indirect
google.golang.org/api v0.38.0
google.golang.org/genproto v0.0.0-20210203152818-3206188e46ba
google.golang.org/grpc v1.35.0
)
-548
View File
@@ -1,548 +0,0 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0 h1:GGslhk/BU052LPlnI1vpp3fcbUs+hQ3E+Doti/3/vF8=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0 h1:MZQCQQaRwOrAcuKjiHWHrgKykt4fZyuwF2dtiG3fGW8=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0 h1:3ithwDMr7/3vpAMXiH+ZQnYbuIsh+OPhUPMFC9enmn0=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0 h1:WRz29PgAsVEyPSDHyk+0fpEkwEFyfhHn+JbksT6gIL4=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0 h1:EpMNVUorLiZIELdMZbCYX/ByTFCdoYopYAGxaGVz9ms=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0 h1:RmDygqvj27Zf3fCQjQRtLyC7KwFcHkeJitcO0OoGOcA=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0 h1:Dg9iHVQfrhq82rUNu9ZxUDrJLaxFUe/HlCVaLyRruq8=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0 h1:eWRCuwubtDrCJG0oSUMgnsbD4CmPFQF2ei4OFbXvwww=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
cloud.google.com/go v0.75.0 h1:XgtDnVJRCPEUG21gjFiRPz4zI1Mjg16R+NYQjfmU4XY=
cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
cloud.google.com/go/bigquery v1.0.1 h1:hL+ycaJpVE9M7nLoiXb/Pn10ENE2u+oddxbD8uu0ZVU=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0 h1:sAbMqjY1PEQKZBWfbu6Y6bsupJ9c4QdHnzg/VvYTLcE=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0 h1:xE3CPsOgttP4ACBePh79zTKALtXwn/Edhcr16R5hMWU=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0 h1:K2NyuHRuv15ku6eUpe0DQk5ZykPMnSOnvuVf6IHcjaE=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0 h1:a/O/bK/vWrYGOTFtH8di4rBxMZnmkjy+Y5LxpDwo+dA=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/datastore v1.0.0 h1:Kt+gOPPp2LEPWp8CSfxhsM8ik9CcyE/gYu+0r+RnZvM=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0 h1:/May9ojXjRkPBNVrq+oWLqmWCkr4OU5uRY29bu0mRyQ=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/pubsub v1.0.1 h1:W9tAK3E57P75u0XLLR82LZyw8VpAnhmyTOxW9qzmyj8=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0 h1:9/vpR43S4aJaROxqQHQ3nH9lfyKKV0dC3vOmnw8ebQQ=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0 h1:Lpy6hKgdcl7a3WGSfJIFmxmcdjSpP6OmBEfcOv1Y680=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1 h1:ukjixP1wl0LpnZ6LWtZJ0mX5tBmjp1f8Sqer8Z2OMUU=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7 h1:5ZkaAPbicIKTF2I64qf5Fh8Aa83Q/dnOafMYV0OMwjA=
github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.4 h1:87PNWwrRvUSnqS4dlcBU/ftvOIBep4sYuBLlh6rX2wk=
github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.5 h1:F768QJ1E9tib+q5Sc8MkdJi1RxLTbRcTf8LJV56aRls=
github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0 h1:oOuy+ugB+P/kBdUnG5QaMXSIyJ1q38wWSojYCb3z5VQ=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.1 h1:ZFgWrT+bLgsYPirOnRfKLYJLvssAegOj/hgyMFdJZe0=
github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
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github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM=
github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/exp v0.0.0-20190829153037-c13cbed26979 h1:Agxu5KLo8o7Bb634SVDnhIfpTvxmzUwhbYAzBvXt6h4=
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golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a h1:7Wlg8L54In96HTWOaI4sreLJ6qfyGuvSau5el3fK41Y=
golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200207192155-f17229e696bd h1:zkO/Lhoka23X63N9OSzpSeROEUQ5ODw47tM3YWjygbs=
golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6 h1:QE6XYQK6naiK1EPAe1g/ILLxN5RBoH5xkJk3CqlMI/Y=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac h1:8R1esu+8QioDxo4E4mX6bFztO+dMTM49DNAaWfO5OeY=
golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f h1:J5lckAjkw6qYlOZNj90mLYNTEKDvWeuc1yieZ8qUzUE=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367 h1:0IiAsCRByjO2QjX7ZPkw5oU9x+n1YqRL802rjC0c3Aw=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 h1:2M3HP5CCK1Si9FQhwnzYhXdG6DXeebvUHFpre8QvbyI=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee h1:WG0RUwxtNT4qqaXX3DPA8zHFNm/D9xaBpxzHt1WcA/E=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.0 h1:8pl+sMODzuvGJkmj2W4kZihvVb5mKm8pB/X44PIQHv8=
golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1 h1:Kvvh58BN8Y9/lBi7hTekvtMpm07eUZ0ck5pRHpsMWrY=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
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google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20210108203827-ffc7fda8c3d7/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.34.0 h1:raiipEjMOIC/TO2AvyTxP25XFdLxNIBwzDh3FM3XztI=
google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
google.golang.org/grpc v1.35.0 h1:TwIQcH3es+MojMVojxxfQ3l3OF2KzlRxML2xZq0kRo8=
google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
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google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-48
View File
@@ -1,48 +0,0 @@
// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.10
package storage
import (
"net/url"
"strings"
"google.golang.org/api/googleapi"
)
func shouldRetry(err error) bool {
switch e := err.(type) {
case *googleapi.Error:
// Retry on 429 and 5xx, according to
// https://cloud.google.com/storage/docs/exponential-backoff.
return e.Code == 429 || (e.Code >= 500 && e.Code < 600)
case *url.Error:
// Retry socket-level errors ECONNREFUSED and ENETUNREACH (from syscall).
// Unfortunately the error type is unexported, so we resort to string
// matching.
retriable := []string{"connection refused", "connection reset"}
for _, s := range retriable {
if strings.Contains(e.Error(), s) {
return true
}
}
return false
case interface{ Temporary() bool }:
return e.Temporary()
default:
return false
}
}
-22
View File
@@ -1,22 +0,0 @@
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This file, and the cloud.google.com/go import, won't actually become part of
// the resultant binary.
// +build modhack
package storage
// Necessary for safely adding multi-module repo. See: https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository
import _ "cloud.google.com/go"
-441
View File
@@ -1,441 +0,0 @@
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"errors"
"fmt"
"time"
"google.golang.org/api/iterator"
raw "google.golang.org/api/storage/v1"
)
// HMACState is the state of the HMAC key.
//
// This type is EXPERIMENTAL and subject to change or removal without notice.
type HMACState string
const (
// Active is the status for an active key that can be used to sign
// requests.
Active HMACState = "ACTIVE"
// Inactive is the status for an inactive key thus requests signed by
// this key will be denied.
Inactive HMACState = "INACTIVE"
// Deleted is the status for a key that is deleted.
// Once in this state the key cannot key cannot be recovered
// and does not count towards key limits. Deleted keys will be cleaned
// up later.
Deleted HMACState = "DELETED"
)
// HMACKey is the representation of a Google Cloud Storage HMAC key.
//
// HMAC keys are used to authenticate signed access to objects. To enable HMAC key
// authentication, please visit https://cloud.google.com/storage/docs/migrating.
//
// This type is EXPERIMENTAL and subject to change or removal without notice.
type HMACKey struct {
// The HMAC's secret key.
Secret string
// AccessID is the ID of the HMAC key.
AccessID string
// Etag is the HTTP/1.1 Entity tag.
Etag string
// ID is the ID of the HMAC key, including the ProjectID and AccessID.
ID string
// ProjectID is the ID of the project that owns the
// service account to which the key authenticates.
ProjectID string
// ServiceAccountEmail is the email address
// of the key's associated service account.
ServiceAccountEmail string
// CreatedTime is the creation time of the HMAC key.
CreatedTime time.Time
// UpdatedTime is the last modification time of the HMAC key metadata.
UpdatedTime time.Time
// State is the state of the HMAC key.
// It can be one of StateActive, StateInactive or StateDeleted.
State HMACState
}
// HMACKeyHandle helps provide access and management for HMAC keys.
//
// This type is EXPERIMENTAL and subject to change or removal without notice.
type HMACKeyHandle struct {
projectID string
accessID string
raw *raw.ProjectsHmacKeysService
}
// HMACKeyHandle creates a handle that will be used for HMACKey operations.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (c *Client) HMACKeyHandle(projectID, accessID string) *HMACKeyHandle {
return &HMACKeyHandle{
projectID: projectID,
accessID: accessID,
raw: raw.NewProjectsHmacKeysService(c.raw),
}
}
// Get invokes an RPC to retrieve the HMAC key referenced by the
// HMACKeyHandle's accessID.
//
// Options such as UserProjectForHMACKeys can be used to set the
// userProject to be billed against for operations.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (hkh *HMACKeyHandle) Get(ctx context.Context, opts ...HMACKeyOption) (*HMACKey, error) {
call := hkh.raw.Get(hkh.projectID, hkh.accessID)
desc := new(hmacKeyDesc)
for _, opt := range opts {
opt.withHMACKeyDesc(desc)
}
if desc.userProjectID != "" {
call = call.UserProject(desc.userProjectID)
}
setClientHeader(call.Header())
var metadata *raw.HmacKeyMetadata
var err error
err = runWithRetry(ctx, func() error {
metadata, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
hkPb := &raw.HmacKey{
Metadata: metadata,
}
return pbHmacKeyToHMACKey(hkPb, false)
}
// Delete invokes an RPC to delete the key referenced by accessID, on Google Cloud Storage.
// Only inactive HMAC keys can be deleted.
// After deletion, a key cannot be used to authenticate requests.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (hkh *HMACKeyHandle) Delete(ctx context.Context, opts ...HMACKeyOption) error {
delCall := hkh.raw.Delete(hkh.projectID, hkh.accessID)
desc := new(hmacKeyDesc)
for _, opt := range opts {
opt.withHMACKeyDesc(desc)
}
if desc.userProjectID != "" {
delCall = delCall.UserProject(desc.userProjectID)
}
setClientHeader(delCall.Header())
return runWithRetry(ctx, func() error {
return delCall.Context(ctx).Do()
})
}
func pbHmacKeyToHMACKey(pb *raw.HmacKey, updatedTimeCanBeNil bool) (*HMACKey, error) {
pbmd := pb.Metadata
if pbmd == nil {
return nil, errors.New("field Metadata cannot be nil")
}
createdTime, err := time.Parse(time.RFC3339, pbmd.TimeCreated)
if err != nil {
return nil, fmt.Errorf("field CreatedTime: %v", err)
}
updatedTime, err := time.Parse(time.RFC3339, pbmd.Updated)
if err != nil && !updatedTimeCanBeNil {
return nil, fmt.Errorf("field UpdatedTime: %v", err)
}
hmk := &HMACKey{
AccessID: pbmd.AccessId,
Secret: pb.Secret,
Etag: pbmd.Etag,
ID: pbmd.Id,
State: HMACState(pbmd.State),
ProjectID: pbmd.ProjectId,
CreatedTime: createdTime,
UpdatedTime: updatedTime,
ServiceAccountEmail: pbmd.ServiceAccountEmail,
}
return hmk, nil
}
// CreateHMACKey invokes an RPC for Google Cloud Storage to create a new HMACKey.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (c *Client) CreateHMACKey(ctx context.Context, projectID, serviceAccountEmail string, opts ...HMACKeyOption) (*HMACKey, error) {
if projectID == "" {
return nil, errors.New("storage: expecting a non-blank projectID")
}
if serviceAccountEmail == "" {
return nil, errors.New("storage: expecting a non-blank service account email")
}
svc := raw.NewProjectsHmacKeysService(c.raw)
call := svc.Create(projectID, serviceAccountEmail)
desc := new(hmacKeyDesc)
for _, opt := range opts {
opt.withHMACKeyDesc(desc)
}
if desc.userProjectID != "" {
call = call.UserProject(desc.userProjectID)
}
setClientHeader(call.Header())
var hkPb *raw.HmacKey
var err error
err = runWithRetry(ctx, func() error {
hkPb, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
return pbHmacKeyToHMACKey(hkPb, true)
}
// HMACKeyAttrsToUpdate defines the attributes of an HMACKey that will be updated.
//
// This type is EXPERIMENTAL and subject to change or removal without notice.
type HMACKeyAttrsToUpdate struct {
// State is required and must be either StateActive or StateInactive.
State HMACState
// Etag is an optional field and it is the HTTP/1.1 Entity tag.
Etag string
}
// Update mutates the HMACKey referred to by accessID.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (h *HMACKeyHandle) Update(ctx context.Context, au HMACKeyAttrsToUpdate, opts ...HMACKeyOption) (*HMACKey, error) {
if au.State != Active && au.State != Inactive {
return nil, fmt.Errorf("storage: invalid state %q for update, must be either %q or %q", au.State, Active, Inactive)
}
call := h.raw.Update(h.projectID, h.accessID, &raw.HmacKeyMetadata{
Etag: au.Etag,
State: string(au.State),
})
desc := new(hmacKeyDesc)
for _, opt := range opts {
opt.withHMACKeyDesc(desc)
}
if desc.userProjectID != "" {
call = call.UserProject(desc.userProjectID)
}
setClientHeader(call.Header())
var metadata *raw.HmacKeyMetadata
var err error
err = runWithRetry(ctx, func() error {
metadata, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
hkPb := &raw.HmacKey{
Metadata: metadata,
}
return pbHmacKeyToHMACKey(hkPb, false)
}
// An HMACKeysIterator is an iterator over HMACKeys.
//
// Note: This iterator is not safe for concurrent operations without explicit synchronization.
//
// This type is EXPERIMENTAL and subject to change or removal without notice.
type HMACKeysIterator struct {
ctx context.Context
raw *raw.ProjectsHmacKeysService
projectID string
hmacKeys []*HMACKey
pageInfo *iterator.PageInfo
nextFunc func() error
index int
desc hmacKeyDesc
}
// ListHMACKeys returns an iterator for listing HMACKeys.
//
// Note: This iterator is not safe for concurrent operations without explicit synchronization.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (c *Client) ListHMACKeys(ctx context.Context, projectID string, opts ...HMACKeyOption) *HMACKeysIterator {
it := &HMACKeysIterator{
ctx: ctx,
raw: raw.NewProjectsHmacKeysService(c.raw),
projectID: projectID,
}
for _, opt := range opts {
opt.withHMACKeyDesc(&it.desc)
}
it.pageInfo, it.nextFunc = iterator.NewPageInfo(
it.fetch,
func() int { return len(it.hmacKeys) - it.index },
func() interface{} {
prev := it.hmacKeys
it.hmacKeys = it.hmacKeys[:0]
it.index = 0
return prev
})
return it
}
// Next returns the next result. Its second return value is iterator.Done if
// there are no more results. Once Next returns iterator.Done, all subsequent
// calls will return iterator.Done.
//
// Note: This iterator is not safe for concurrent operations without explicit synchronization.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (it *HMACKeysIterator) Next() (*HMACKey, error) {
if err := it.nextFunc(); err != nil {
return nil, err
}
key := it.hmacKeys[it.index]
it.index++
return key, nil
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
//
// Note: This iterator is not safe for concurrent operations without explicit synchronization.
//
// This method is EXPERIMENTAL and subject to change or removal without notice.
func (it *HMACKeysIterator) PageInfo() *iterator.PageInfo { return it.pageInfo }
func (it *HMACKeysIterator) fetch(pageSize int, pageToken string) (token string, err error) {
call := it.raw.List(it.projectID)
setClientHeader(call.Header())
if pageToken != "" {
call = call.PageToken(pageToken)
}
if it.desc.showDeletedKeys {
call = call.ShowDeletedKeys(true)
}
if it.desc.userProjectID != "" {
call = call.UserProject(it.desc.userProjectID)
}
if it.desc.forServiceAccountEmail != "" {
call = call.ServiceAccountEmail(it.desc.forServiceAccountEmail)
}
if pageSize > 0 {
call = call.MaxResults(int64(pageSize))
}
ctx := it.ctx
var resp *raw.HmacKeysMetadata
err = runWithRetry(it.ctx, func() error {
resp, err = call.Context(ctx).Do()
return err
})
if err != nil {
return "", err
}
for _, metadata := range resp.Items {
hkPb := &raw.HmacKey{
Metadata: metadata,
}
hkey, err := pbHmacKeyToHMACKey(hkPb, true)
if err != nil {
return "", err
}
it.hmacKeys = append(it.hmacKeys, hkey)
}
return resp.NextPageToken, nil
}
type hmacKeyDesc struct {
forServiceAccountEmail string
showDeletedKeys bool
userProjectID string
}
// HMACKeyOption configures the behavior of HMACKey related methods and actions.
//
// This interface is EXPERIMENTAL and subject to change or removal without notice.
type HMACKeyOption interface {
withHMACKeyDesc(*hmacKeyDesc)
}
type hmacKeyDescFunc func(*hmacKeyDesc)
func (hkdf hmacKeyDescFunc) withHMACKeyDesc(hkd *hmacKeyDesc) {
hkdf(hkd)
}
// ForHMACKeyServiceAccountEmail returns HMAC Keys that are
// associated with the email address of a service account in the project.
//
// Only one service account email can be used as a filter, so if multiple
// of these options are applied, the last email to be set will be used.
//
// This option is EXPERIMENTAL and subject to change or removal without notice.
func ForHMACKeyServiceAccountEmail(serviceAccountEmail string) HMACKeyOption {
return hmacKeyDescFunc(func(hkd *hmacKeyDesc) {
hkd.forServiceAccountEmail = serviceAccountEmail
})
}
// ShowDeletedHMACKeys will also list keys whose state is "DELETED".
//
// This option is EXPERIMENTAL and subject to change or removal without notice.
func ShowDeletedHMACKeys() HMACKeyOption {
return hmacKeyDescFunc(func(hkd *hmacKeyDesc) {
hkd.showDeletedKeys = true
})
}
// UserProjectForHMACKeys will bill the request against userProjectID
// if userProjectID is non-empty.
//
// Note: This is a noop right now and only provided for API compatibility.
//
// This option is EXPERIMENTAL and subject to change or removal without notice.
func UserProjectForHMACKeys(userProjectID string) HMACKeyOption {
return hmacKeyDescFunc(func(hkd *hmacKeyDesc) {
hkd.userProjectID = userProjectID
})
}
-162
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// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"cloud.google.com/go/iam"
"cloud.google.com/go/internal/trace"
raw "google.golang.org/api/storage/v1"
iampb "google.golang.org/genproto/googleapis/iam/v1"
"google.golang.org/genproto/googleapis/type/expr"
)
// IAM provides access to IAM access control for the bucket.
func (b *BucketHandle) IAM() *iam.Handle {
return iam.InternalNewHandleClient(&iamClient{
raw: b.c.raw,
userProject: b.userProject,
}, b.name)
}
// iamClient implements the iam.client interface.
type iamClient struct {
raw *raw.Service
userProject string
}
func (c *iamClient) Get(ctx context.Context, resource string) (p *iampb.Policy, err error) {
return c.GetWithVersion(ctx, resource, 1)
}
func (c *iamClient) GetWithVersion(ctx context.Context, resource string, requestedPolicyVersion int32) (p *iampb.Policy, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.IAM.Get")
defer func() { trace.EndSpan(ctx, err) }()
call := c.raw.Buckets.GetIamPolicy(resource).OptionsRequestedPolicyVersion(int64(requestedPolicyVersion))
setClientHeader(call.Header())
if c.userProject != "" {
call.UserProject(c.userProject)
}
var rp *raw.Policy
err = runWithRetry(ctx, func() error {
rp, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
return iamFromStoragePolicy(rp), nil
}
func (c *iamClient) Set(ctx context.Context, resource string, p *iampb.Policy) (err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.IAM.Set")
defer func() { trace.EndSpan(ctx, err) }()
rp := iamToStoragePolicy(p)
call := c.raw.Buckets.SetIamPolicy(resource, rp)
setClientHeader(call.Header())
if c.userProject != "" {
call.UserProject(c.userProject)
}
return runWithRetry(ctx, func() error {
_, err := call.Context(ctx).Do()
return err
})
}
func (c *iamClient) Test(ctx context.Context, resource string, perms []string) (permissions []string, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.IAM.Test")
defer func() { trace.EndSpan(ctx, err) }()
call := c.raw.Buckets.TestIamPermissions(resource, perms)
setClientHeader(call.Header())
if c.userProject != "" {
call.UserProject(c.userProject)
}
var res *raw.TestIamPermissionsResponse
err = runWithRetry(ctx, func() error {
res, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
return res.Permissions, nil
}
func iamToStoragePolicy(ip *iampb.Policy) *raw.Policy {
return &raw.Policy{
Bindings: iamToStorageBindings(ip.Bindings),
Etag: string(ip.Etag),
Version: int64(ip.Version),
}
}
func iamToStorageBindings(ibs []*iampb.Binding) []*raw.PolicyBindings {
var rbs []*raw.PolicyBindings
for _, ib := range ibs {
rbs = append(rbs, &raw.PolicyBindings{
Role: ib.Role,
Members: ib.Members,
Condition: iamToStorageCondition(ib.Condition),
})
}
return rbs
}
func iamToStorageCondition(exprpb *expr.Expr) *raw.Expr {
if exprpb == nil {
return nil
}
return &raw.Expr{
Expression: exprpb.Expression,
Description: exprpb.Description,
Location: exprpb.Location,
Title: exprpb.Title,
}
}
func iamFromStoragePolicy(rp *raw.Policy) *iampb.Policy {
return &iampb.Policy{
Bindings: iamFromStorageBindings(rp.Bindings),
Etag: []byte(rp.Etag),
}
}
func iamFromStorageBindings(rbs []*raw.PolicyBindings) []*iampb.Binding {
var ibs []*iampb.Binding
for _, rb := range rbs {
ibs = append(ibs, &iampb.Binding{
Role: rb.Role,
Members: rb.Members,
Condition: iamFromStorageCondition(rb.Condition),
})
}
return ibs
}
func iamFromStorageCondition(rawexpr *raw.Expr) *expr.Expr {
if rawexpr == nil {
return nil
}
return &expr.Expr{
Expression: rawexpr.Expression,
Description: rawexpr.Description,
Location: rawexpr.Location,
Title: rawexpr.Title,
}
}
-37
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@@ -1,37 +0,0 @@
// Copyright 2014 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"cloud.google.com/go/internal"
gax "github.com/googleapis/gax-go/v2"
)
// runWithRetry calls the function until it returns nil or a non-retryable error, or
// the context is done.
func runWithRetry(ctx context.Context, call func() error) error {
return internal.Retry(ctx, gax.Backoff{}, func() (stop bool, err error) {
err = call()
if err == nil {
return true, nil
}
if shouldRetry(err) {
return false, nil
}
return true, err
})
}
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@@ -1,42 +0,0 @@
// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !go1.10
package storage
import (
"net/url"
"strings"
"google.golang.org/api/googleapi"
)
func shouldRetry(err error) bool {
switch e := err.(type) {
case *googleapi.Error:
// Retry on 429 and 5xx, according to
// https://cloud.google.com/storage/docs/exponential-backoff.
return e.Code == 429 || (e.Code >= 500 && e.Code < 600)
case *url.Error:
// Retry on REFUSED_STREAM.
// Unfortunately the error type is unexported, so we resort to string
// matching.
return strings.Contains(e.Error(), "REFUSED_STREAM")
case interface{ Temporary() bool }:
return e.Temporary()
default:
return false
}
}
-188
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@@ -1,188 +0,0 @@
// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"errors"
"fmt"
"regexp"
"cloud.google.com/go/internal/trace"
raw "google.golang.org/api/storage/v1"
)
// A Notification describes how to send Cloud PubSub messages when certain
// events occur in a bucket.
type Notification struct {
//The ID of the notification.
ID string
// The ID of the topic to which this subscription publishes.
TopicID string
// The ID of the project to which the topic belongs.
TopicProjectID string
// Only send notifications about listed event types. If empty, send notifications
// for all event types.
// See https://cloud.google.com/storage/docs/pubsub-notifications#events.
EventTypes []string
// If present, only apply this notification configuration to object names that
// begin with this prefix.
ObjectNamePrefix string
// An optional list of additional attributes to attach to each Cloud PubSub
// message published for this notification subscription.
CustomAttributes map[string]string
// The contents of the message payload.
// See https://cloud.google.com/storage/docs/pubsub-notifications#payload.
PayloadFormat string
}
// Values for Notification.PayloadFormat.
const (
// Send no payload with notification messages.
NoPayload = "NONE"
// Send object metadata as JSON with notification messages.
JSONPayload = "JSON_API_V1"
)
// Values for Notification.EventTypes.
const (
// Event that occurs when an object is successfully created.
ObjectFinalizeEvent = "OBJECT_FINALIZE"
// Event that occurs when the metadata of an existing object changes.
ObjectMetadataUpdateEvent = "OBJECT_METADATA_UPDATE"
// Event that occurs when an object is permanently deleted.
ObjectDeleteEvent = "OBJECT_DELETE"
// Event that occurs when the live version of an object becomes an
// archived version.
ObjectArchiveEvent = "OBJECT_ARCHIVE"
)
func toNotification(rn *raw.Notification) *Notification {
n := &Notification{
ID: rn.Id,
EventTypes: rn.EventTypes,
ObjectNamePrefix: rn.ObjectNamePrefix,
CustomAttributes: rn.CustomAttributes,
PayloadFormat: rn.PayloadFormat,
}
n.TopicProjectID, n.TopicID = parseNotificationTopic(rn.Topic)
return n
}
var topicRE = regexp.MustCompile("^//pubsub.googleapis.com/projects/([^/]+)/topics/([^/]+)")
// parseNotificationTopic extracts the project and topic IDs from from the full
// resource name returned by the service. If the name is malformed, it returns
// "?" for both IDs.
func parseNotificationTopic(nt string) (projectID, topicID string) {
matches := topicRE.FindStringSubmatch(nt)
if matches == nil {
return "?", "?"
}
return matches[1], matches[2]
}
func toRawNotification(n *Notification) *raw.Notification {
return &raw.Notification{
Id: n.ID,
Topic: fmt.Sprintf("//pubsub.googleapis.com/projects/%s/topics/%s",
n.TopicProjectID, n.TopicID),
EventTypes: n.EventTypes,
ObjectNamePrefix: n.ObjectNamePrefix,
CustomAttributes: n.CustomAttributes,
PayloadFormat: string(n.PayloadFormat),
}
}
// AddNotification adds a notification to b. You must set n's TopicProjectID, TopicID
// and PayloadFormat, and must not set its ID. The other fields are all optional. The
// returned Notification's ID can be used to refer to it.
func (b *BucketHandle) AddNotification(ctx context.Context, n *Notification) (ret *Notification, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Bucket.AddNotification")
defer func() { trace.EndSpan(ctx, err) }()
if n.ID != "" {
return nil, errors.New("storage: AddNotification: ID must not be set")
}
if n.TopicProjectID == "" {
return nil, errors.New("storage: AddNotification: missing TopicProjectID")
}
if n.TopicID == "" {
return nil, errors.New("storage: AddNotification: missing TopicID")
}
call := b.c.raw.Notifications.Insert(b.name, toRawNotification(n))
setClientHeader(call.Header())
if b.userProject != "" {
call.UserProject(b.userProject)
}
rn, err := call.Context(ctx).Do()
if err != nil {
return nil, err
}
return toNotification(rn), nil
}
// Notifications returns all the Notifications configured for this bucket, as a map
// indexed by notification ID.
func (b *BucketHandle) Notifications(ctx context.Context) (n map[string]*Notification, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Bucket.Notifications")
defer func() { trace.EndSpan(ctx, err) }()
call := b.c.raw.Notifications.List(b.name)
setClientHeader(call.Header())
if b.userProject != "" {
call.UserProject(b.userProject)
}
var res *raw.Notifications
err = runWithRetry(ctx, func() error {
res, err = call.Context(ctx).Do()
return err
})
if err != nil {
return nil, err
}
return notificationsToMap(res.Items), nil
}
func notificationsToMap(rns []*raw.Notification) map[string]*Notification {
m := map[string]*Notification{}
for _, rn := range rns {
m[rn.Id] = toNotification(rn)
}
return m
}
// DeleteNotification deletes the notification with the given ID.
func (b *BucketHandle) DeleteNotification(ctx context.Context, id string) (err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Bucket.DeleteNotification")
defer func() { trace.EndSpan(ctx, err) }()
call := b.c.raw.Notifications.Delete(b.name, id)
setClientHeader(call.Header())
if b.userProject != "" {
call.UserProject(b.userProject)
}
return call.Context(ctx).Do()
}
-387
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@@ -1,387 +0,0 @@
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha256"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"net/url"
"strings"
"time"
)
// PostPolicyV4Options are used to construct a signed post policy.
// Please see https://cloud.google.com/storage/docs/xml-api/post-object
// for reference about the fields.
type PostPolicyV4Options struct {
// GoogleAccessID represents the authorizer of the signed URL generation.
// It is typically the Google service account client email address from
// the Google Developers Console in the form of "xxx@developer.gserviceaccount.com".
// Required.
GoogleAccessID string
// PrivateKey is the Google service account private key. It is obtainable
// from the Google Developers Console.
// At https://console.developers.google.com/project/<your-project-id>/apiui/credential,
// create a service account client ID or reuse one of your existing service account
// credentials. Click on the "Generate new P12 key" to generate and download
// a new private key. Once you download the P12 file, use the following command
// to convert it into a PEM file.
//
// $ openssl pkcs12 -in key.p12 -passin pass:notasecret -out key.pem -nodes
//
// Provide the contents of the PEM file as a byte slice.
// Exactly one of PrivateKey or SignBytes must be non-nil.
PrivateKey []byte
// SignBytes is a function for implementing custom signing. For example, if
// your application is running on Google App Engine, you can use
// appengine's internal signing function:
// ctx := appengine.NewContext(request)
// acc, _ := appengine.ServiceAccount(ctx)
// url, err := SignedURL("bucket", "object", &SignedURLOptions{
// GoogleAccessID: acc,
// SignBytes: func(b []byte) ([]byte, error) {
// _, signedBytes, err := appengine.SignBytes(ctx, b)
// return signedBytes, err
// },
// // etc.
// })
//
// Exactly one of PrivateKey or SignBytes must be non-nil.
SignBytes func(hashBytes []byte) (signature []byte, err error)
// Expires is the expiration time on the signed URL.
// It must be a time in the future.
// Required.
Expires time.Time
// Style provides options for the type of URL to use. Options are
// PathStyle (default), BucketBoundHostname, and VirtualHostedStyle. See
// https://cloud.google.com/storage/docs/request-endpoints for details.
// Optional.
Style URLStyle
// Insecure when set indicates that the generated URL's scheme
// will use "http" instead of "https" (default).
// Optional.
Insecure bool
// Fields specifies the attributes of a PostPolicyV4 request.
// When Fields is non-nil, its attributes must match those that will
// passed into field Conditions.
// Optional.
Fields *PolicyV4Fields
// The conditions that the uploaded file will be expected to conform to.
// When used, the failure of an upload to satisfy a condition will result in
// a 4XX status code, back with the message describing the problem.
// Optional.
Conditions []PostPolicyV4Condition
}
// PolicyV4Fields describes the attributes for a PostPolicyV4 request.
type PolicyV4Fields struct {
// ACL specifies the access control permissions for the object.
// Optional.
ACL string
// CacheControl specifies the caching directives for the object.
// Optional.
CacheControl string
// ContentType specifies the media type of the object.
// Optional.
ContentType string
// ContentDisposition specifies how the file will be served back to requesters.
// Optional.
ContentDisposition string
// ContentEncoding specifies the decompressive transcoding that the object.
// This field is complementary to ContentType in that the file could be
// compressed but ContentType specifies the file's original media type.
// Optional.
ContentEncoding string
// Metadata specifies custom metadata for the object.
// If any key doesn't begin with "x-goog-meta-", an error will be returned.
// Optional.
Metadata map[string]string
// StatusCodeOnSuccess when set, specifies the status code that Cloud Storage
// will serve back on successful upload of the object.
// Optional.
StatusCodeOnSuccess int
// RedirectToURLOnSuccess when set, specifies the URL that Cloud Storage
// will serve back on successful upload of the object.
// Optional.
RedirectToURLOnSuccess string
}
// PostPolicyV4 describes the URL and respective form fields for a generated PostPolicyV4 request.
type PostPolicyV4 struct {
// URL is the generated URL that the file upload will be made to.
URL string
// Fields specifies the generated key-values that the file uploader
// must include in their multipart upload form.
Fields map[string]string
}
// PostPolicyV4Condition describes the constraints that the subsequent
// object upload's multipart form fields will be expected to conform to.
type PostPolicyV4Condition interface {
isEmpty() bool
json.Marshaler
}
type startsWith struct {
key, value string
}
func (sw *startsWith) MarshalJSON() ([]byte, error) {
return json.Marshal([]string{"starts-with", sw.key, sw.value})
}
func (sw *startsWith) isEmpty() bool {
return sw.value == ""
}
// ConditionStartsWith checks that an attributes starts with value.
// An empty value will cause this condition to be ignored.
func ConditionStartsWith(key, value string) PostPolicyV4Condition {
return &startsWith{key, value}
}
type contentLengthRangeCondition struct {
start, end uint64
}
func (clr *contentLengthRangeCondition) MarshalJSON() ([]byte, error) {
return json.Marshal([]interface{}{"content-length-range", clr.start, clr.end})
}
func (clr *contentLengthRangeCondition) isEmpty() bool {
return clr.start == 0 && clr.end == 0
}
type singleValueCondition struct {
name, value string
}
func (svc *singleValueCondition) MarshalJSON() ([]byte, error) {
return json.Marshal(map[string]string{svc.name: svc.value})
}
func (svc *singleValueCondition) isEmpty() bool {
return svc.value == ""
}
// ConditionContentLengthRange constraints the limits that the
// multipart upload's range header will be expected to be within.
func ConditionContentLengthRange(start, end uint64) PostPolicyV4Condition {
return &contentLengthRangeCondition{start, end}
}
func conditionRedirectToURLOnSuccess(redirectURL string) PostPolicyV4Condition {
return &singleValueCondition{"success_action_redirect", redirectURL}
}
func conditionStatusCodeOnSuccess(statusCode int) PostPolicyV4Condition {
svc := &singleValueCondition{name: "success_action_status"}
if statusCode > 0 {
svc.value = fmt.Sprintf("%d", statusCode)
}
return svc
}
// GenerateSignedPostPolicyV4 generates a PostPolicyV4 value from bucket, object and opts.
// The generated URL and fields will then allow an unauthenticated client to perform multipart uploads.
func GenerateSignedPostPolicyV4(bucket, object string, opts *PostPolicyV4Options) (*PostPolicyV4, error) {
if bucket == "" {
return nil, errors.New("storage: bucket must be non-empty")
}
if object == "" {
return nil, errors.New("storage: object must be non-empty")
}
now := utcNow()
if err := validatePostPolicyV4Options(opts, now); err != nil {
return nil, err
}
var signingFn func(hashedBytes []byte) ([]byte, error)
switch {
case opts.SignBytes != nil:
signingFn = opts.SignBytes
case len(opts.PrivateKey) != 0:
parsedRSAPrivKey, err := parseKey(opts.PrivateKey)
if err != nil {
return nil, err
}
signingFn = func(hashedBytes []byte) ([]byte, error) {
return rsa.SignPKCS1v15(rand.Reader, parsedRSAPrivKey, crypto.SHA256, hashedBytes)
}
default:
return nil, errors.New("storage: exactly one of PrivateKey or SignedBytes must be set")
}
var descFields PolicyV4Fields
if opts.Fields != nil {
descFields = *opts.Fields
}
if err := validateMetadata(descFields.Metadata); err != nil {
return nil, err
}
// Build the policy.
conds := make([]PostPolicyV4Condition, len(opts.Conditions))
copy(conds, opts.Conditions)
conds = append(conds,
// These are ordered lexicographically. Technically the order doesn't matter
// for creating the policy, but we use this order to match the
// cross-language conformance tests for this feature.
&singleValueCondition{"acl", descFields.ACL},
&singleValueCondition{"cache-control", descFields.CacheControl},
&singleValueCondition{"content-disposition", descFields.ContentDisposition},
&singleValueCondition{"content-encoding", descFields.ContentEncoding},
&singleValueCondition{"content-type", descFields.ContentType},
conditionRedirectToURLOnSuccess(descFields.RedirectToURLOnSuccess),
conditionStatusCodeOnSuccess(descFields.StatusCodeOnSuccess),
)
YYYYMMDD := now.Format(yearMonthDay)
policyFields := map[string]string{
"key": object,
"x-goog-date": now.Format(iso8601),
"x-goog-credential": opts.GoogleAccessID + "/" + YYYYMMDD + "/auto/storage/goog4_request",
"x-goog-algorithm": "GOOG4-RSA-SHA256",
"acl": descFields.ACL,
"cache-control": descFields.CacheControl,
"content-disposition": descFields.ContentDisposition,
"content-encoding": descFields.ContentEncoding,
"content-type": descFields.ContentType,
"success_action_redirect": descFields.RedirectToURLOnSuccess,
}
for key, value := range descFields.Metadata {
conds = append(conds, &singleValueCondition{key, value})
policyFields[key] = value
}
// Following from the order expected by the conformance test cases,
// hence manually inserting these fields in a specific order.
conds = append(conds,
&singleValueCondition{"bucket", bucket},
&singleValueCondition{"key", object},
&singleValueCondition{"x-goog-date", now.Format(iso8601)},
&singleValueCondition{
name: "x-goog-credential",
value: opts.GoogleAccessID + "/" + YYYYMMDD + "/auto/storage/goog4_request",
},
&singleValueCondition{"x-goog-algorithm", "GOOG4-RSA-SHA256"},
)
nonEmptyConds := make([]PostPolicyV4Condition, 0, len(opts.Conditions))
for _, cond := range conds {
if cond == nil || !cond.isEmpty() {
nonEmptyConds = append(nonEmptyConds, cond)
}
}
condsAsJSON, err := json.Marshal(map[string]interface{}{
"conditions": nonEmptyConds,
"expiration": opts.Expires.Format(time.RFC3339),
})
if err != nil {
return nil, fmt.Errorf("storage: PostPolicyV4 JSON serialization failed: %v", err)
}
b64Policy := base64.StdEncoding.EncodeToString(condsAsJSON)
shaSum := sha256.Sum256([]byte(b64Policy))
signature, err := signingFn(shaSum[:])
if err != nil {
return nil, err
}
policyFields["policy"] = b64Policy
policyFields["x-goog-signature"] = fmt.Sprintf("%x", signature)
// Construct the URL.
scheme := "https"
if opts.Insecure {
scheme = "http"
}
path := opts.Style.path(bucket, "") + "/"
u := &url.URL{
Path: path,
RawPath: pathEncodeV4(path),
Host: opts.Style.host(bucket),
Scheme: scheme,
}
if descFields.StatusCodeOnSuccess > 0 {
policyFields["success_action_status"] = fmt.Sprintf("%d", descFields.StatusCodeOnSuccess)
}
// Clear out fields with blanks values.
for key, value := range policyFields {
if value == "" {
delete(policyFields, key)
}
}
pp4 := &PostPolicyV4{
Fields: policyFields,
URL: u.String(),
}
return pp4, nil
}
// validatePostPolicyV4Options checks that:
// * GoogleAccessID is set
// * either but not both PrivateKey and SignBytes are set or nil, but not both
// * Expires, the deadline is not in the past
// * if Style is not set, it'll use PathStyle
func validatePostPolicyV4Options(opts *PostPolicyV4Options, now time.Time) error {
if opts == nil || opts.GoogleAccessID == "" {
return errors.New("storage: missing required GoogleAccessID")
}
if privBlank, signBlank := len(opts.PrivateKey) == 0, opts.SignBytes == nil; privBlank == signBlank {
return errors.New("storage: exactly one of PrivateKey or SignedBytes must be set")
}
if opts.Expires.Before(now) {
return errors.New("storage: expecting Expires to be in the future")
}
if opts.Style == nil {
opts.Style = PathStyle()
}
return nil
}
// validateMetadata ensures that all keys passed in have a prefix of "x-goog-meta-",
// otherwise it will return an error.
func validateMetadata(hdrs map[string]string) (err error) {
if len(hdrs) == 0 {
return nil
}
badKeys := make([]string, 0, len(hdrs))
for key := range hdrs {
if !strings.HasPrefix(key, "x-goog-meta-") {
badKeys = append(badKeys, key)
}
}
if len(badKeys) != 0 {
err = errors.New("storage: expected metadata to begin with x-goog-meta-, got " + strings.Join(badKeys, ", "))
}
return
}
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@@ -1,435 +0,0 @@
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"errors"
"fmt"
"hash/crc32"
"io"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"strconv"
"strings"
"time"
"cloud.google.com/go/internal/trace"
"google.golang.org/api/googleapi"
)
var crc32cTable = crc32.MakeTable(crc32.Castagnoli)
// ReaderObjectAttrs are attributes about the object being read. These are populated
// during the New call. This struct only holds a subset of object attributes: to
// get the full set of attributes, use ObjectHandle.Attrs.
//
// Each field is read-only.
type ReaderObjectAttrs struct {
// Size is the length of the object's content.
Size int64
// StartOffset is the byte offset within the object
// from which reading begins.
// This value is only non-zero for range requests.
StartOffset int64
// ContentType is the MIME type of the object's content.
ContentType string
// ContentEncoding is the encoding of the object's content.
ContentEncoding string
// CacheControl specifies whether and for how long browser and Internet
// caches are allowed to cache your objects.
CacheControl string
// LastModified is the time that the object was last modified.
LastModified time.Time
// Generation is the generation number of the object's content.
Generation int64
// Metageneration is the version of the metadata for this object at
// this generation. This field is used for preconditions and for
// detecting changes in metadata. A metageneration number is only
// meaningful in the context of a particular generation of a
// particular object.
Metageneration int64
}
// NewReader creates a new Reader to read the contents of the
// object.
// ErrObjectNotExist will be returned if the object is not found.
//
// The caller must call Close on the returned Reader when done reading.
func (o *ObjectHandle) NewReader(ctx context.Context) (*Reader, error) {
return o.NewRangeReader(ctx, 0, -1)
}
// NewRangeReader reads part of an object, reading at most length bytes
// starting at the given offset. If length is negative, the object is read
// until the end. If offset is negative, the object is read abs(offset) bytes
// from the end, and length must also be negative to indicate all remaining
// bytes will be read.
//
// If the object's metadata property "Content-Encoding" is set to "gzip" or satisfies
// decompressive transcoding per https://cloud.google.com/storage/docs/transcoding
// that file will be served back whole, regardless of the requested range as
// Google Cloud Storage dictates.
func (o *ObjectHandle) NewRangeReader(ctx context.Context, offset, length int64) (r *Reader, err error) {
ctx = trace.StartSpan(ctx, "cloud.google.com/go/storage.Object.NewRangeReader")
defer func() { trace.EndSpan(ctx, err) }()
if err := o.validate(); err != nil {
return nil, err
}
if offset < 0 && length >= 0 {
return nil, fmt.Errorf("storage: invalid offset %d < 0 requires negative length", offset)
}
if o.conds != nil {
if err := o.conds.validate("NewRangeReader"); err != nil {
return nil, err
}
}
u := &url.URL{
Scheme: o.c.scheme,
Host: o.c.readHost,
Path: fmt.Sprintf("/%s/%s", o.bucket, o.object),
}
verb := "GET"
if length == 0 {
verb = "HEAD"
}
req, err := http.NewRequest(verb, u.String(), nil)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
if o.userProject != "" {
req.Header.Set("X-Goog-User-Project", o.userProject)
}
if o.readCompressed {
req.Header.Set("Accept-Encoding", "gzip")
}
if err := setEncryptionHeaders(req.Header, o.encryptionKey, false); err != nil {
return nil, err
}
gen := o.gen
// Define a function that initiates a Read with offset and length, assuming we
// have already read seen bytes.
reopen := func(seen int64) (*http.Response, error) {
start := offset + seen
if length < 0 && start < 0 {
req.Header.Set("Range", fmt.Sprintf("bytes=%d", start))
} else if length < 0 && start > 0 {
req.Header.Set("Range", fmt.Sprintf("bytes=%d-", start))
} else if length > 0 {
// The end character isn't affected by how many bytes we've seen.
req.Header.Set("Range", fmt.Sprintf("bytes=%d-%d", start, offset+length-1))
}
// We wait to assign conditions here because the generation number can change in between reopen() runs.
req.URL.RawQuery = conditionsQuery(gen, o.conds)
var res *http.Response
err = runWithRetry(ctx, func() error {
res, err = o.c.hc.Do(req)
if err != nil {
return err
}
if res.StatusCode == http.StatusNotFound {
res.Body.Close()
return ErrObjectNotExist
}
if res.StatusCode < 200 || res.StatusCode > 299 {
body, _ := ioutil.ReadAll(res.Body)
res.Body.Close()
return &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
Body: string(body),
}
}
partialContentNotSatisfied :=
!decompressiveTranscoding(res) &&
start > 0 && length != 0 &&
res.StatusCode != http.StatusPartialContent
if partialContentNotSatisfied {
res.Body.Close()
return errors.New("storage: partial request not satisfied")
}
// With "Content-Encoding": "gzip" aka decompressive transcoding, GCS serves
// back the whole file regardless of the range count passed in as per:
// https://cloud.google.com/storage/docs/transcoding#range,
// thus we have to manually move the body forward by seen bytes.
if decompressiveTranscoding(res) && seen > 0 {
_, _ = io.CopyN(ioutil.Discard, res.Body, seen)
}
// If a generation hasn't been specified, and this is the first response we get, let's record the
// generation. In future requests we'll use this generation as a precondition to avoid data races.
if gen < 0 && res.Header.Get("X-Goog-Generation") != "" {
gen64, err := strconv.ParseInt(res.Header.Get("X-Goog-Generation"), 10, 64)
if err != nil {
return err
}
gen = gen64
}
return nil
})
if err != nil {
return nil, err
}
return res, nil
}
res, err := reopen(0)
if err != nil {
return nil, err
}
var (
size int64 // total size of object, even if a range was requested.
checkCRC bool
crc uint32
startOffset int64 // non-zero if range request.
)
if res.StatusCode == http.StatusPartialContent {
cr := strings.TrimSpace(res.Header.Get("Content-Range"))
if !strings.HasPrefix(cr, "bytes ") || !strings.Contains(cr, "/") {
return nil, fmt.Errorf("storage: invalid Content-Range %q", cr)
}
size, err = strconv.ParseInt(cr[strings.LastIndex(cr, "/")+1:], 10, 64)
if err != nil {
return nil, fmt.Errorf("storage: invalid Content-Range %q", cr)
}
dashIndex := strings.Index(cr, "-")
if dashIndex >= 0 {
startOffset, err = strconv.ParseInt(cr[len("bytes="):dashIndex], 10, 64)
if err != nil {
return nil, fmt.Errorf("storage: invalid Content-Range %q: %v", cr, err)
}
}
} else {
size = res.ContentLength
// Check the CRC iff all of the following hold:
// - We asked for content (length != 0).
// - We got all the content (status != PartialContent).
// - The server sent a CRC header.
// - The Go http stack did not uncompress the file.
// - We were not served compressed data that was uncompressed on download.
// The problem with the last two cases is that the CRC will not match -- GCS
// computes it on the compressed contents, but we compute it on the
// uncompressed contents.
if length != 0 && !res.Uncompressed && !uncompressedByServer(res) {
crc, checkCRC = parseCRC32c(res)
}
}
remain := res.ContentLength
body := res.Body
if length == 0 {
remain = 0
body.Close()
body = emptyBody
}
var metaGen int64
if res.Header.Get("X-Goog-Metageneration") != "" {
metaGen, err = strconv.ParseInt(res.Header.Get("X-Goog-Metageneration"), 10, 64)
if err != nil {
return nil, err
}
}
var lm time.Time
if res.Header.Get("Last-Modified") != "" {
lm, err = http.ParseTime(res.Header.Get("Last-Modified"))
if err != nil {
return nil, err
}
}
attrs := ReaderObjectAttrs{
Size: size,
ContentType: res.Header.Get("Content-Type"),
ContentEncoding: res.Header.Get("Content-Encoding"),
CacheControl: res.Header.Get("Cache-Control"),
LastModified: lm,
StartOffset: startOffset,
Generation: gen,
Metageneration: metaGen,
}
return &Reader{
Attrs: attrs,
body: body,
size: size,
remain: remain,
wantCRC: crc,
checkCRC: checkCRC,
reopen: reopen,
}, nil
}
// decompressiveTranscoding returns true if the request was served decompressed
// and different than its original storage form. This happens when the "Content-Encoding"
// header is "gzip".
// See:
// * https://cloud.google.com/storage/docs/transcoding#transcoding_and_gzip
// * https://github.com/googleapis/google-cloud-go/issues/1800
func decompressiveTranscoding(res *http.Response) bool {
// Decompressive Transcoding.
return res.Header.Get("Content-Encoding") == "gzip" ||
res.Header.Get("X-Goog-Stored-Content-Encoding") == "gzip"
}
func uncompressedByServer(res *http.Response) bool {
// If the data is stored as gzip but is not encoded as gzip, then it
// was uncompressed by the server.
return res.Header.Get("X-Goog-Stored-Content-Encoding") == "gzip" &&
res.Header.Get("Content-Encoding") != "gzip"
}
func parseCRC32c(res *http.Response) (uint32, bool) {
const prefix = "crc32c="
for _, spec := range res.Header["X-Goog-Hash"] {
if strings.HasPrefix(spec, prefix) {
c, err := decodeUint32(spec[len(prefix):])
if err == nil {
return c, true
}
}
}
return 0, false
}
var emptyBody = ioutil.NopCloser(strings.NewReader(""))
// Reader reads a Cloud Storage object.
// It implements io.Reader.
//
// Typically, a Reader computes the CRC of the downloaded content and compares it to
// the stored CRC, returning an error from Read if there is a mismatch. This integrity check
// is skipped if transcoding occurs. See https://cloud.google.com/storage/docs/transcoding.
type Reader struct {
Attrs ReaderObjectAttrs
body io.ReadCloser
seen, remain, size int64
checkCRC bool // should we check the CRC?
wantCRC uint32 // the CRC32c value the server sent in the header
gotCRC uint32 // running crc
reopen func(seen int64) (*http.Response, error)
}
// Close closes the Reader. It must be called when done reading.
func (r *Reader) Close() error {
return r.body.Close()
}
func (r *Reader) Read(p []byte) (int, error) {
n, err := r.readWithRetry(p)
if r.remain != -1 {
r.remain -= int64(n)
}
if r.checkCRC {
r.gotCRC = crc32.Update(r.gotCRC, crc32cTable, p[:n])
// Check CRC here. It would be natural to check it in Close, but
// everybody defers Close on the assumption that it doesn't return
// anything worth looking at.
if err == io.EOF {
if r.gotCRC != r.wantCRC {
return n, fmt.Errorf("storage: bad CRC on read: got %d, want %d",
r.gotCRC, r.wantCRC)
}
}
}
return n, err
}
func (r *Reader) readWithRetry(p []byte) (int, error) {
n := 0
for len(p[n:]) > 0 {
m, err := r.body.Read(p[n:])
n += m
r.seen += int64(m)
if !shouldRetryRead(err) {
return n, err
}
// Read failed, but we will try again. Send a ranged read request that takes
// into account the number of bytes we've already seen.
res, err := r.reopen(r.seen)
if err != nil {
// reopen already retries
return n, err
}
r.body.Close()
r.body = res.Body
}
return n, nil
}
func shouldRetryRead(err error) bool {
if err == nil {
return false
}
return strings.HasSuffix(err.Error(), "INTERNAL_ERROR") && strings.Contains(reflect.TypeOf(err).String(), "http2")
}
// Size returns the size of the object in bytes.
// The returned value is always the same and is not affected by
// calls to Read or Close.
//
// Deprecated: use Reader.Attrs.Size.
func (r *Reader) Size() int64 {
return r.Attrs.Size
}
// Remain returns the number of bytes left to read, or -1 if unknown.
func (r *Reader) Remain() int64 {
return r.remain
}
// ContentType returns the content type of the object.
//
// Deprecated: use Reader.Attrs.ContentType.
func (r *Reader) ContentType() string {
return r.Attrs.ContentType
}
// ContentEncoding returns the content encoding of the object.
//
// Deprecated: use Reader.Attrs.ContentEncoding.
func (r *Reader) ContentEncoding() string {
return r.Attrs.ContentEncoding
}
// CacheControl returns the cache control of the object.
//
// Deprecated: use Reader.Attrs.CacheControl.
func (r *Reader) CacheControl() string {
return r.Attrs.CacheControl
}
// LastModified returns the value of the Last-Modified header.
//
// Deprecated: use Reader.Attrs.LastModified.
func (r *Reader) LastModified() (time.Time, error) {
return r.Attrs.LastModified, nil
}
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@@ -1,268 +0,0 @@
// Copyright 2014 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package storage
import (
"context"
"encoding/base64"
"errors"
"fmt"
"io"
"sync"
"unicode/utf8"
"google.golang.org/api/googleapi"
raw "google.golang.org/api/storage/v1"
)
// A Writer writes a Cloud Storage object.
type Writer struct {
// ObjectAttrs are optional attributes to set on the object. Any attributes
// must be initialized before the first Write call. Nil or zero-valued
// attributes are ignored.
ObjectAttrs
// SendCRC specifies whether to transmit a CRC32C field. It should be set
// to true in addition to setting the Writer's CRC32C field, because zero
// is a valid CRC and normally a zero would not be transmitted.
// If a CRC32C is sent, and the data written does not match the checksum,
// the write will be rejected.
SendCRC32C bool
// ChunkSize controls the maximum number of bytes of the object that the
// Writer will attempt to send to the server in a single request. Objects
// smaller than the size will be sent in a single request, while larger
// objects will be split over multiple requests. The size will be rounded up
// to the nearest multiple of 256K.
//
// ChunkSize will default to a reasonable value. If you perform many
// concurrent writes of small objects (under ~8MB), you may wish set ChunkSize
// to a value that matches your objects' sizes to avoid consuming large
// amounts of memory. See
// https://cloud.google.com/storage/docs/json_api/v1/how-tos/upload#size
// for more information about performance trade-offs related to ChunkSize.
//
// If ChunkSize is set to zero, chunking will be disabled and the object will
// be uploaded in a single request without the use of a buffer. This will
// further reduce memory used during uploads, but will also prevent the writer
// from retrying in case of a transient error from the server, since a buffer
// is required in order to retry the failed request.
//
// ChunkSize must be set before the first Write call.
ChunkSize int
// ProgressFunc can be used to monitor the progress of a large write.
// operation. If ProgressFunc is not nil and writing requires multiple
// calls to the underlying service (see
// https://cloud.google.com/storage/docs/json_api/v1/how-tos/resumable-upload),
// then ProgressFunc will be invoked after each call with the number of bytes of
// content copied so far.
//
// ProgressFunc should return quickly without blocking.
ProgressFunc func(int64)
ctx context.Context
o *ObjectHandle
opened bool
pw *io.PipeWriter
donec chan struct{} // closed after err and obj are set.
obj *ObjectAttrs
mu sync.Mutex
err error
}
func (w *Writer) open() error {
attrs := w.ObjectAttrs
// Check the developer didn't change the object Name (this is unfortunate, but
// we don't want to store an object under the wrong name).
if attrs.Name != w.o.object {
return fmt.Errorf("storage: Writer.Name %q does not match object name %q", attrs.Name, w.o.object)
}
if !utf8.ValidString(attrs.Name) {
return fmt.Errorf("storage: object name %q is not valid UTF-8", attrs.Name)
}
if attrs.KMSKeyName != "" && w.o.encryptionKey != nil {
return errors.New("storage: cannot use KMSKeyName with a customer-supplied encryption key")
}
pr, pw := io.Pipe()
w.pw = pw
w.opened = true
go w.monitorCancel()
if w.ChunkSize < 0 {
return errors.New("storage: Writer.ChunkSize must be non-negative")
}
mediaOpts := []googleapi.MediaOption{
googleapi.ChunkSize(w.ChunkSize),
}
if c := attrs.ContentType; c != "" {
mediaOpts = append(mediaOpts, googleapi.ContentType(c))
}
go func() {
defer close(w.donec)
rawObj := attrs.toRawObject(w.o.bucket)
if w.SendCRC32C {
rawObj.Crc32c = encodeUint32(attrs.CRC32C)
}
if w.MD5 != nil {
rawObj.Md5Hash = base64.StdEncoding.EncodeToString(w.MD5)
}
if w.o.c.envHost != "" {
w.o.c.raw.BasePath = fmt.Sprintf("%s://%s", w.o.c.scheme, w.o.c.envHost)
}
call := w.o.c.raw.Objects.Insert(w.o.bucket, rawObj).
Media(pr, mediaOpts...).
Projection("full").
Context(w.ctx).
Name(w.o.object)
if w.ProgressFunc != nil {
call.ProgressUpdater(func(n, _ int64) { w.ProgressFunc(n) })
}
if attrs.KMSKeyName != "" {
call.KmsKeyName(attrs.KMSKeyName)
}
if attrs.PredefinedACL != "" {
call.PredefinedAcl(attrs.PredefinedACL)
}
if err := setEncryptionHeaders(call.Header(), w.o.encryptionKey, false); err != nil {
w.mu.Lock()
w.err = err
w.mu.Unlock()
pr.CloseWithError(err)
return
}
var resp *raw.Object
err := applyConds("NewWriter", w.o.gen, w.o.conds, call)
if err == nil {
if w.o.userProject != "" {
call.UserProject(w.o.userProject)
}
setClientHeader(call.Header())
// The internals that perform call.Do automatically retry both the initial
// call to set up the upload as well as calls to upload individual chunks
// for a resumable upload (as long as the chunk size is non-zero). Hence
// there is no need to add retries here.
resp, err = call.Do()
}
if err != nil {
w.mu.Lock()
w.err = err
w.mu.Unlock()
pr.CloseWithError(err)
return
}
w.obj = newObject(resp)
}()
return nil
}
// Write appends to w. It implements the io.Writer interface.
//
// Since writes happen asynchronously, Write may return a nil
// error even though the write failed (or will fail). Always
// use the error returned from Writer.Close to determine if
// the upload was successful.
//
// Writes will be retried on transient errors from the server, unless
// Writer.ChunkSize has been set to zero.
func (w *Writer) Write(p []byte) (n int, err error) {
w.mu.Lock()
werr := w.err
w.mu.Unlock()
if werr != nil {
return 0, werr
}
if !w.opened {
if err := w.open(); err != nil {
return 0, err
}
}
n, err = w.pw.Write(p)
if err != nil {
w.mu.Lock()
werr := w.err
w.mu.Unlock()
// Preserve existing functionality that when context is canceled, Write will return
// context.Canceled instead of "io: read/write on closed pipe". This hides the
// pipe implementation detail from users and makes Write seem as though it's an RPC.
if werr == context.Canceled || werr == context.DeadlineExceeded {
return n, werr
}
}
return n, err
}
// Close completes the write operation and flushes any buffered data.
// If Close doesn't return an error, metadata about the written object
// can be retrieved by calling Attrs.
func (w *Writer) Close() error {
if !w.opened {
if err := w.open(); err != nil {
return err
}
}
// Closing either the read or write causes the entire pipe to close.
if err := w.pw.Close(); err != nil {
return err
}
<-w.donec
w.mu.Lock()
defer w.mu.Unlock()
return w.err
}
// monitorCancel is intended to be used as a background goroutine. It monitors the
// context, and when it observes that the context has been canceled, it manually
// closes things that do not take a context.
func (w *Writer) monitorCancel() {
select {
case <-w.ctx.Done():
w.mu.Lock()
werr := w.ctx.Err()
w.err = werr
w.mu.Unlock()
// Closing either the read or write causes the entire pipe to close.
w.CloseWithError(werr)
case <-w.donec:
}
}
// CloseWithError aborts the write operation with the provided error.
// CloseWithError always returns nil.
//
// Deprecated: cancel the context passed to NewWriter instead.
func (w *Writer) CloseWithError(err error) error {
if !w.opened {
return nil
}
return w.pw.CloseWithError(err)
}
// Attrs returns metadata about a successfully-written object.
// It's only valid to call it after Close returns nil.
func (w *Writer) Attrs() *ObjectAttrs {
return w.obj
}
-236
View File
@@ -1,236 +0,0 @@
# Testing Code that depends on Go Client Libraries
The Go client libraries generated as a part of `cloud.google.com/go` all take
the approach of returning concrete types instead of interfaces. That way, new
fields and methods can be added to the libraries without breaking users. This
document will go over some patterns that can be used to test code that depends
on the Go client libraries.
## Testing gRPC services using fakes
*Note*: You can see the full
[example code using a fake here](https://github.com/googleapis/google-cloud-go/tree/master/internal/examples/fake).
The clients found in `cloud.google.com/go` are gRPC based, with a couple of
notable exceptions being the [`storage`](https://pkg.go.dev/cloud.google.com/go/storage)
and [`bigquery`](https://pkg.go.dev/cloud.google.com/go/bigquery) clients.
Interactions with gRPC services can be faked by serving up your own in-memory
server within your test. One benefit of using this approach is that you don’t
need to define an interface in your runtime code; you can keep using
concrete struct types. You instead define a fake server in your test code. For
example, take a look at the following function:
```go
import (
"context"
"fmt"
"log"
"os"
translate "cloud.google.com/go/translate/apiv3"
"github.com/googleapis/gax-go/v2"
translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)
func TranslateTextWithConcreteClient(client *translate.TranslationClient, text string, targetLang string) (string, error) {
ctx := context.Background()
log.Printf("Translating %q to %q", text, targetLang)
req := &translatepb.TranslateTextRequest{
Parent: fmt.Sprintf("projects/%s/locations/global", os.Getenv("GOOGLE_CLOUD_PROJECT")),
TargetLanguageCode: "en-US",
Contents: []string{text},
}
resp, err := client.TranslateText(ctx, req)
if err != nil {
return "", fmt.Errorf("unable to translate text: %v", err)
}
translations := resp.GetTranslations()
if len(translations) != 1 {
return "", fmt.Errorf("expected only one result, got %d", len(translations))
}
return translations[0].TranslatedText, nil
}
```
Here is an example of what a fake server implementation would look like for
faking the interactions above:
```go
import (
"context"
translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)
type fakeTranslationServer struct {
translatepb.UnimplementedTranslationServiceServer
}
func (f *fakeTranslationServer) TranslateText(ctx context.Context, req *translatepb.TranslateTextRequest) (*translatepb.TranslateTextResponse, error) {
resp := &translatepb.TranslateTextResponse{
Translations: []*translatepb.Translation{
&translatepb.Translation{
TranslatedText: "Hello World",
},
},
}
return resp, nil
}
```
All of the generated protobuf code found in [google.golang.org/genproto](https://pkg.go.dev/google.golang.org/genproto)
contains a similar `package.UnimplmentedFooServer` type that is useful for
creating fakes. By embedding the unimplemented server in the
`fakeTranslationServer`, the fake will “inherit” all of the RPCs the server
exposes. Then, by providing our own `fakeTranslationServer.TranslateText`
method you can “override” the default unimplemented behavior of the one RPC that
you would like to be faked.
The test itself does require a little bit of setup: start up a `net.Listener`,
register the server, and tell the client library to call the server:
```go
import (
"context"
"net"
"testing"
translate "cloud.google.com/go/translate/apiv3"
"google.golang.org/api/option"
translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
"google.golang.org/grpc"
)
func TestTranslateTextWithConcreteClient(t *testing.T) {
ctx := context.Background()
// Setup the fake server.
fakeTranslationServer := &fakeTranslationServer{}
l, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatal(err)
}
gsrv := grpc.NewServer()
translatepb.RegisterTranslationServiceServer(gsrv, fakeTranslationServer)
fakeServerAddr := l.Addr().String()
go func() {
if err := gsrv.Serve(l); err != nil {
panic(err)
}
}()
// Create a client.
client, err := translate.NewTranslationClient(ctx,
option.WithEndpoint(fakeServerAddr),
option.WithoutAuthentication(),
option.WithGRPCDialOption(grpc.WithInsecure()),
)
if err != nil {
t.Fatal(err)
}
// Run the test.
text, err := TranslateTextWithConcreteClient(client, "Hola Mundo", "en-US")
if err != nil {
t.Fatal(err)
}
if text != "Hello World" {
t.Fatalf("got %q, want Hello World", text)
}
}
```
## Testing using mocks
*Note*: You can see the full
[example code using a mock here](https://github.com/googleapis/google-cloud-go/tree/master/internal/examples/mock).
When mocking code you need to work with interfaces. Let’s create an interface
for the `cloud.google.com/go/translate/apiv3` client used in the
`TranslateTextWithConcreteClient` function mentioned in the previous section.
The `translate.Client` has over a dozen methods but this code only uses one of
them. Here is an interface that satisfies the interactions of the
`translate.Client` in this function.
```go
type TranslationClient interface {
TranslateText(ctx context.Context, req *translatepb.TranslateTextRequest, opts ...gax.CallOption) (*translatepb.TranslateTextResponse, error)
}
```
Now that we have an interface that satisfies the method being used we can
rewrite the function signature to take the interface instead of the concrete
type.
```go
func TranslateTextWithInterfaceClient(client TranslationClient, text string, targetLang string) (string, error) {
// ...
}
```
This allows a real `translate.Client` to be passed to the method in production
and for a mock implementation to be passed in during testing. This pattern can
be applied to any Go code, not just `cloud.google.com/go`. This is because
interfaces in Go are implicitly satisfied. Structs in the client libraries can
implicitly implement interfaces defined in your codebase. Let’s take a look at
what it might look like to define a lightweight mock for the `TranslationClient`
interface.
```go
import (
"context"
"testing"
"github.com/googleapis/gax-go/v2"
translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)
type mockClient struct{}
func (*mockClient) TranslateText(_ context.Context, req *translatepb.TranslateTextRequest, opts ...gax.CallOption) (*translatepb.TranslateTextResponse, error) {
resp := &translatepb.TranslateTextResponse{
Translations: []*translatepb.Translation{
&translatepb.Translation{
TranslatedText: "Hello World",
},
},
}
return resp, nil
}
func TestTranslateTextWithAbstractClient(t *testing.T) {
client := &mockClient{}
text, err := TranslateTextWithInterfaceClient(client, "Hola Mundo", "en-US")
if err != nil {
t.Fatal(err)
}
if text != "Hello World" {
t.Fatalf("got %q, want Hello World", text)
}
}
```
If you prefer to not write your own mocks there are mocking frameworks such as
[golang/mock](https://github.com/golang/mock) which can generate mocks for you
from an interface. As a word of caution though, try to not
[overuse mocks](https://testing.googleblog.com/2013/05/testing-on-toilet-dont-overuse-mocks.html).
## Testing using emulators
Some of the client libraries provided in `cloud.google.com/go` support running
against a service emulator. The concept is similar to that of using fakes,
mentioned above, but the server is managed for you. You just need to start it up
and instruct the client library to talk to the emulator by setting a service
specific emulator environment variable. Current services/environment-variables
are:
- bigtable: `BIGTABLE_EMULATOR_HOST`
- datastore: `DATASTORE_EMULATOR_HOST`
- firestore: `FIRESTORE_EMULATOR_HOST`
- pubsub: `PUBSUB_EMULATOR_HOST`
- spanner: `SPANNER_EMULATOR_HOST`
- storage: `STORAGE_EMULATOR_HOST`
- Although the storage client supports an emulator environment variable there is no official emulator provided by gcloud.
For more information on emulators please refer to the
[gcloud documentation](https://cloud.google.com/sdk/gcloud/reference/beta/emulators).
-31
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@@ -1,31 +0,0 @@
// +build tools
// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This package exists to cause `go mod` and `go get` to believe these tools
// are dependencies, even though they are not runtime dependencies of any
// package (these are tools used by our CI builds). This means they will appear
// in our `go.mod` file, but will not be a part of the build. Also, since the
// build target is something non-existent, these should not be included in any
// binaries.
package cloud
import (
_ "github.com/golang/protobuf/protoc-gen-go"
_ "github.com/jstemmer/go-junit-report"
_ "golang.org/x/lint/golint"
_ "golang.org/x/tools/cmd/goimports"
)
-5
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@@ -1,5 +0,0 @@
TAGS
tags
.*.swp
tomlcheck/tomlcheck
toml.test
-15
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@@ -1,15 +0,0 @@
language: go
go:
- 1.1
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- tip
install:
- go install ./...
- go get github.com/BurntSushi/toml-test
script:
- export PATH="$PATH:$HOME/gopath/bin"
- make test
-3
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@@ -1,3 +0,0 @@
Compatible with TOML version
[v0.4.0](https://github.com/toml-lang/toml/blob/v0.4.0/versions/en/toml-v0.4.0.md)
-21
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@@ -1,21 +0,0 @@
The MIT License (MIT)
Copyright (c) 2013 TOML authors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-19
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@@ -1,19 +0,0 @@
install:
go install ./...
test: install
go test -v
toml-test toml-test-decoder
toml-test -encoder toml-test-encoder
fmt:
gofmt -w *.go */*.go
colcheck *.go */*.go
tags:
find ./ -name '*.go' -print0 | xargs -0 gotags > TAGS
push:
git push origin master
git push github master
-218
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## TOML parser and encoder for Go with reflection
TOML stands for Tom's Obvious, Minimal Language. This Go package provides a
reflection interface similar to Go's standard library `json` and `xml`
packages. This package also supports the `encoding.TextUnmarshaler` and
`encoding.TextMarshaler` interfaces so that you can define custom data
representations. (There is an example of this below.)
Spec: https://github.com/toml-lang/toml
Compatible with TOML version
[v0.4.0](https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.4.0.md)
Documentation: https://godoc.org/github.com/BurntSushi/toml
Installation:
```bash
go get github.com/BurntSushi/toml
```
Try the toml validator:
```bash
go get github.com/BurntSushi/toml/cmd/tomlv
tomlv some-toml-file.toml
```
[![Build Status](https://travis-ci.org/BurntSushi/toml.svg?branch=master)](https://travis-ci.org/BurntSushi/toml) [![GoDoc](https://godoc.org/github.com/BurntSushi/toml?status.svg)](https://godoc.org/github.com/BurntSushi/toml)
### Testing
This package passes all tests in
[toml-test](https://github.com/BurntSushi/toml-test) for both the decoder
and the encoder.
### Examples
This package works similarly to how the Go standard library handles `XML`
and `JSON`. Namely, data is loaded into Go values via reflection.
For the simplest example, consider some TOML file as just a list of keys
and values:
```toml
Age = 25
Cats = [ "Cauchy", "Plato" ]
Pi = 3.14
Perfection = [ 6, 28, 496, 8128 ]
DOB = 1987-07-05T05:45:00Z
```
Which could be defined in Go as:
```go
type Config struct {
Age int
Cats []string
Pi float64
Perfection []int
DOB time.Time // requires `import time`
}
```
And then decoded with:
```go
var conf Config
if _, err := toml.Decode(tomlData, &conf); err != nil {
// handle error
}
```
You can also use struct tags if your struct field name doesn't map to a TOML
key value directly:
```toml
some_key_NAME = "wat"
```
```go
type TOML struct {
ObscureKey string `toml:"some_key_NAME"`
}
```
### Using the `encoding.TextUnmarshaler` interface
Here's an example that automatically parses duration strings into
`time.Duration` values:
```toml
[[song]]
name = "Thunder Road"
duration = "4m49s"
[[song]]
name = "Stairway to Heaven"
duration = "8m03s"
```
Which can be decoded with:
```go
type song struct {
Name string
Duration duration
}
type songs struct {
Song []song
}
var favorites songs
if _, err := toml.Decode(blob, &favorites); err != nil {
log.Fatal(err)
}
for _, s := range favorites.Song {
fmt.Printf("%s (%s)\n", s.Name, s.Duration)
}
```
And you'll also need a `duration` type that satisfies the
`encoding.TextUnmarshaler` interface:
```go
type duration struct {
time.Duration
}
func (d *duration) UnmarshalText(text []byte) error {
var err error
d.Duration, err = time.ParseDuration(string(text))
return err
}
```
### More complex usage
Here's an example of how to load the example from the official spec page:
```toml
# This is a TOML document. Boom.
title = "TOML Example"
[owner]
name = "Tom Preston-Werner"
organization = "GitHub"
bio = "GitHub Cofounder & CEO\nLikes tater tots and beer."
dob = 1979-05-27T07:32:00Z # First class dates? Why not?
[database]
server = "192.168.1.1"
ports = [ 8001, 8001, 8002 ]
connection_max = 5000
enabled = true
[servers]
# You can indent as you please. Tabs or spaces. TOML don't care.
[servers.alpha]
ip = "10.0.0.1"
dc = "eqdc10"
[servers.beta]
ip = "10.0.0.2"
dc = "eqdc10"
[clients]
data = [ ["gamma", "delta"], [1, 2] ] # just an update to make sure parsers support it
# Line breaks are OK when inside arrays
hosts = [
"alpha",
"omega"
]
```
And the corresponding Go types are:
```go
type tomlConfig struct {
Title string
Owner ownerInfo
DB database `toml:"database"`
Servers map[string]server
Clients clients
}
type ownerInfo struct {
Name string
Org string `toml:"organization"`
Bio string
DOB time.Time
}
type database struct {
Server string
Ports []int
ConnMax int `toml:"connection_max"`
Enabled bool
}
type server struct {
IP string
DC string
}
type clients struct {
Data [][]interface{}
Hosts []string
}
```
Note that a case insensitive match will be tried if an exact match can't be
found.
A working example of the above can be found in `_examples/example.{go,toml}`.
-509
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@@ -1,509 +0,0 @@
package toml
import (
"fmt"
"io"
"io/ioutil"
"math"
"reflect"
"strings"
"time"
)
func e(format string, args ...interface{}) error {
return fmt.Errorf("toml: "+format, args...)
}
// Unmarshaler is the interface implemented by objects that can unmarshal a
// TOML description of themselves.
type Unmarshaler interface {
UnmarshalTOML(interface{}) error
}
// Unmarshal decodes the contents of `p` in TOML format into a pointer `v`.
func Unmarshal(p []byte, v interface{}) error {
_, err := Decode(string(p), v)
return err
}
// Primitive is a TOML value that hasn't been decoded into a Go value.
// When using the various `Decode*` functions, the type `Primitive` may
// be given to any value, and its decoding will be delayed.
//
// A `Primitive` value can be decoded using the `PrimitiveDecode` function.
//
// The underlying representation of a `Primitive` value is subject to change.
// Do not rely on it.
//
// N.B. Primitive values are still parsed, so using them will only avoid
// the overhead of reflection. They can be useful when you don't know the
// exact type of TOML data until run time.
type Primitive struct {
undecoded interface{}
context Key
}
// DEPRECATED!
//
// Use MetaData.PrimitiveDecode instead.
func PrimitiveDecode(primValue Primitive, v interface{}) error {
md := MetaData{decoded: make(map[string]bool)}
return md.unify(primValue.undecoded, rvalue(v))
}
// PrimitiveDecode is just like the other `Decode*` functions, except it
// decodes a TOML value that has already been parsed. Valid primitive values
// can *only* be obtained from values filled by the decoder functions,
// including this method. (i.e., `v` may contain more `Primitive`
// values.)
//
// Meta data for primitive values is included in the meta data returned by
// the `Decode*` functions with one exception: keys returned by the Undecoded
// method will only reflect keys that were decoded. Namely, any keys hidden
// behind a Primitive will be considered undecoded. Executing this method will
// update the undecoded keys in the meta data. (See the example.)
func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
md.context = primValue.context
defer func() { md.context = nil }()
return md.unify(primValue.undecoded, rvalue(v))
}
// Decode will decode the contents of `data` in TOML format into a pointer
// `v`.
//
// TOML hashes correspond to Go structs or maps. (Dealer's choice. They can be
// used interchangeably.)
//
// TOML arrays of tables correspond to either a slice of structs or a slice
// of maps.
//
// TOML datetimes correspond to Go `time.Time` values.
//
// All other TOML types (float, string, int, bool and array) correspond
// to the obvious Go types.
//
// An exception to the above rules is if a type implements the
// encoding.TextUnmarshaler interface. In this case, any primitive TOML value
// (floats, strings, integers, booleans and datetimes) will be converted to
// a byte string and given to the value's UnmarshalText method. See the
// Unmarshaler example for a demonstration with time duration strings.
//
// Key mapping
//
// TOML keys can map to either keys in a Go map or field names in a Go
// struct. The special `toml` struct tag may be used to map TOML keys to
// struct fields that don't match the key name exactly. (See the example.)
// A case insensitive match to struct names will be tried if an exact match
// can't be found.
//
// The mapping between TOML values and Go values is loose. That is, there
// may exist TOML values that cannot be placed into your representation, and
// there may be parts of your representation that do not correspond to
// TOML values. This loose mapping can be made stricter by using the IsDefined
// and/or Undecoded methods on the MetaData returned.
//
// This decoder will not handle cyclic types. If a cyclic type is passed,
// `Decode` will not terminate.
func Decode(data string, v interface{}) (MetaData, error) {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Ptr {
return MetaData{}, e("Decode of non-pointer %s", reflect.TypeOf(v))
}
if rv.IsNil() {
return MetaData{}, e("Decode of nil %s", reflect.TypeOf(v))
}
p, err := parse(data)
if err != nil {
return MetaData{}, err
}
md := MetaData{
p.mapping, p.types, p.ordered,
make(map[string]bool, len(p.ordered)), nil,
}
return md, md.unify(p.mapping, indirect(rv))
}
// DecodeFile is just like Decode, except it will automatically read the
// contents of the file at `fpath` and decode it for you.
func DecodeFile(fpath string, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadFile(fpath)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// DecodeReader is just like Decode, except it will consume all bytes
// from the reader and decode it for you.
func DecodeReader(r io.Reader, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadAll(r)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// unify performs a sort of type unification based on the structure of `rv`,
// which is the client representation.
//
// Any type mismatch produces an error. Finding a type that we don't know
// how to handle produces an unsupported type error.
func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
// Special case. Look for a `Primitive` value.
if rv.Type() == reflect.TypeOf((*Primitive)(nil)).Elem() {
// Save the undecoded data and the key context into the primitive
// value.
context := make(Key, len(md.context))
copy(context, md.context)
rv.Set(reflect.ValueOf(Primitive{
undecoded: data,
context: context,
}))
return nil
}
// Special case. Unmarshaler Interface support.
if rv.CanAddr() {
if v, ok := rv.Addr().Interface().(Unmarshaler); ok {
return v.UnmarshalTOML(data)
}
}
// Special case. Handle time.Time values specifically.
// TODO: Remove this code when we decide to drop support for Go 1.1.
// This isn't necessary in Go 1.2 because time.Time satisfies the encoding
// interfaces.
if rv.Type().AssignableTo(rvalue(time.Time{}).Type()) {
return md.unifyDatetime(data, rv)
}
// Special case. Look for a value satisfying the TextUnmarshaler interface.
if v, ok := rv.Interface().(TextUnmarshaler); ok {
return md.unifyText(data, v)
}
// BUG(burntsushi)
// The behavior here is incorrect whenever a Go type satisfies the
// encoding.TextUnmarshaler interface but also corresponds to a TOML
// hash or array. In particular, the unmarshaler should only be applied
// to primitive TOML values. But at this point, it will be applied to
// all kinds of values and produce an incorrect error whenever those values
// are hashes or arrays (including arrays of tables).
k := rv.Kind()
// laziness
if k >= reflect.Int && k <= reflect.Uint64 {
return md.unifyInt(data, rv)
}
switch k {
case reflect.Ptr:
elem := reflect.New(rv.Type().Elem())
err := md.unify(data, reflect.Indirect(elem))
if err != nil {
return err
}
rv.Set(elem)
return nil
case reflect.Struct:
return md.unifyStruct(data, rv)
case reflect.Map:
return md.unifyMap(data, rv)
case reflect.Array:
return md.unifyArray(data, rv)
case reflect.Slice:
return md.unifySlice(data, rv)
case reflect.String:
return md.unifyString(data, rv)
case reflect.Bool:
return md.unifyBool(data, rv)
case reflect.Interface:
// we only support empty interfaces.
if rv.NumMethod() > 0 {
return e("unsupported type %s", rv.Type())
}
return md.unifyAnything(data, rv)
case reflect.Float32:
fallthrough
case reflect.Float64:
return md.unifyFloat64(data, rv)
}
return e("unsupported type %s", rv.Kind())
}
func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if mapping == nil {
return nil
}
return e("type mismatch for %s: expected table but found %T",
rv.Type().String(), mapping)
}
for key, datum := range tmap {
var f *field
fields := cachedTypeFields(rv.Type())
for i := range fields {
ff := &fields[i]
if ff.name == key {
f = ff
break
}
if f == nil && strings.EqualFold(ff.name, key) {
f = ff
}
}
if f != nil {
subv := rv
for _, i := range f.index {
subv = indirect(subv.Field(i))
}
if isUnifiable(subv) {
md.decoded[md.context.add(key).String()] = true
md.context = append(md.context, key)
if err := md.unify(datum, subv); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
} else if f.name != "" {
// Bad user! No soup for you!
return e("cannot write unexported field %s.%s",
rv.Type().String(), f.name)
}
}
}
return nil
}
func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if tmap == nil {
return nil
}
return badtype("map", mapping)
}
if rv.IsNil() {
rv.Set(reflect.MakeMap(rv.Type()))
}
for k, v := range tmap {
md.decoded[md.context.add(k).String()] = true
md.context = append(md.context, k)
rvkey := indirect(reflect.New(rv.Type().Key()))
rvval := reflect.Indirect(reflect.New(rv.Type().Elem()))
if err := md.unify(v, rvval); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
rvkey.SetString(k)
rv.SetMapIndex(rvkey, rvval)
}
return nil
}
func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
sliceLen := datav.Len()
if sliceLen != rv.Len() {
return e("expected array length %d; got TOML array of length %d",
rv.Len(), sliceLen)
}
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySlice(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
n := datav.Len()
if rv.IsNil() || rv.Cap() < n {
rv.Set(reflect.MakeSlice(rv.Type(), n, n))
}
rv.SetLen(n)
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySliceArray(data, rv reflect.Value) error {
sliceLen := data.Len()
for i := 0; i < sliceLen; i++ {
v := data.Index(i).Interface()
sliceval := indirect(rv.Index(i))
if err := md.unify(v, sliceval); err != nil {
return err
}
}
return nil
}
func (md *MetaData) unifyDatetime(data interface{}, rv reflect.Value) error {
if _, ok := data.(time.Time); ok {
rv.Set(reflect.ValueOf(data))
return nil
}
return badtype("time.Time", data)
}
func (md *MetaData) unifyString(data interface{}, rv reflect.Value) error {
if s, ok := data.(string); ok {
rv.SetString(s)
return nil
}
return badtype("string", data)
}
func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
if num, ok := data.(float64); ok {
switch rv.Kind() {
case reflect.Float32:
fallthrough
case reflect.Float64:
rv.SetFloat(num)
default:
panic("bug")
}
return nil
}
return badtype("float", data)
}
func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
if num, ok := data.(int64); ok {
if rv.Kind() >= reflect.Int && rv.Kind() <= reflect.Int64 {
switch rv.Kind() {
case reflect.Int, reflect.Int64:
// No bounds checking necessary.
case reflect.Int8:
if num < math.MinInt8 || num > math.MaxInt8 {
return e("value %d is out of range for int8", num)
}
case reflect.Int16:
if num < math.MinInt16 || num > math.MaxInt16 {
return e("value %d is out of range for int16", num)
}
case reflect.Int32:
if num < math.MinInt32 || num > math.MaxInt32 {
return e("value %d is out of range for int32", num)
}
}
rv.SetInt(num)
} else if rv.Kind() >= reflect.Uint && rv.Kind() <= reflect.Uint64 {
unum := uint64(num)
switch rv.Kind() {
case reflect.Uint, reflect.Uint64:
// No bounds checking necessary.
case reflect.Uint8:
if num < 0 || unum > math.MaxUint8 {
return e("value %d is out of range for uint8", num)
}
case reflect.Uint16:
if num < 0 || unum > math.MaxUint16 {
return e("value %d is out of range for uint16", num)
}
case reflect.Uint32:
if num < 0 || unum > math.MaxUint32 {
return e("value %d is out of range for uint32", num)
}
}
rv.SetUint(unum)
} else {
panic("unreachable")
}
return nil
}
return badtype("integer", data)
}
func (md *MetaData) unifyBool(data interface{}, rv reflect.Value) error {
if b, ok := data.(bool); ok {
rv.SetBool(b)
return nil
}
return badtype("boolean", data)
}
func (md *MetaData) unifyAnything(data interface{}, rv reflect.Value) error {
rv.Set(reflect.ValueOf(data))
return nil
}
func (md *MetaData) unifyText(data interface{}, v TextUnmarshaler) error {
var s string
switch sdata := data.(type) {
case TextMarshaler:
text, err := sdata.MarshalText()
if err != nil {
return err
}
s = string(text)
case fmt.Stringer:
s = sdata.String()
case string:
s = sdata
case bool:
s = fmt.Sprintf("%v", sdata)
case int64:
s = fmt.Sprintf("%d", sdata)
case float64:
s = fmt.Sprintf("%f", sdata)
default:
return badtype("primitive (string-like)", data)
}
if err := v.UnmarshalText([]byte(s)); err != nil {
return err
}
return nil
}
// rvalue returns a reflect.Value of `v`. All pointers are resolved.
func rvalue(v interface{}) reflect.Value {
return indirect(reflect.ValueOf(v))
}
// indirect returns the value pointed to by a pointer.
// Pointers are followed until the value is not a pointer.
// New values are allocated for each nil pointer.
//
// An exception to this rule is if the value satisfies an interface of
// interest to us (like encoding.TextUnmarshaler).
func indirect(v reflect.Value) reflect.Value {
if v.Kind() != reflect.Ptr {
if v.CanSet() {
pv := v.Addr()
if _, ok := pv.Interface().(TextUnmarshaler); ok {
return pv
}
}
return v
}
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
return indirect(reflect.Indirect(v))
}
func isUnifiable(rv reflect.Value) bool {
if rv.CanSet() {
return true
}
if _, ok := rv.Interface().(TextUnmarshaler); ok {
return true
}
return false
}
func badtype(expected string, data interface{}) error {
return e("cannot load TOML value of type %T into a Go %s", data, expected)
}
-121
View File
@@ -1,121 +0,0 @@
package toml
import "strings"
// MetaData allows access to meta information about TOML data that may not
// be inferrable via reflection. In particular, whether a key has been defined
// and the TOML type of a key.
type MetaData struct {
mapping map[string]interface{}
types map[string]tomlType
keys []Key
decoded map[string]bool
context Key // Used only during decoding.
}
// IsDefined returns true if the key given exists in the TOML data. The key
// should be specified hierarchially. e.g.,
//
// // access the TOML key 'a.b.c'
// IsDefined("a", "b", "c")
//
// IsDefined will return false if an empty key given. Keys are case sensitive.
func (md *MetaData) IsDefined(key ...string) bool {
if len(key) == 0 {
return false
}
var hash map[string]interface{}
var ok bool
var hashOrVal interface{} = md.mapping
for _, k := range key {
if hash, ok = hashOrVal.(map[string]interface{}); !ok {
return false
}
if hashOrVal, ok = hash[k]; !ok {
return false
}
}
return true
}
// Type returns a string representation of the type of the key specified.
//
// Type will return the empty string if given an empty key or a key that
// does not exist. Keys are case sensitive.
func (md *MetaData) Type(key ...string) string {
fullkey := strings.Join(key, ".")
if typ, ok := md.types[fullkey]; ok {
return typ.typeString()
}
return ""
}
// Key is the type of any TOML key, including key groups. Use (MetaData).Keys
// to get values of this type.
type Key []string
func (k Key) String() string {
return strings.Join(k, ".")
}
func (k Key) maybeQuotedAll() string {
var ss []string
for i := range k {
ss = append(ss, k.maybeQuoted(i))
}
return strings.Join(ss, ".")
}
func (k Key) maybeQuoted(i int) string {
quote := false
for _, c := range k[i] {
if !isBareKeyChar(c) {
quote = true
break
}
}
if quote {
return "\"" + strings.Replace(k[i], "\"", "\\\"", -1) + "\""
}
return k[i]
}
func (k Key) add(piece string) Key {
newKey := make(Key, len(k)+1)
copy(newKey, k)
newKey[len(k)] = piece
return newKey
}
// Keys returns a slice of every key in the TOML data, including key groups.
// Each key is itself a slice, where the first element is the top of the
// hierarchy and the last is the most specific.
//
// The list will have the same order as the keys appeared in the TOML data.
//
// All keys returned are non-empty.
func (md *MetaData) Keys() []Key {
return md.keys
}
// Undecoded returns all keys that have not been decoded in the order in which
// they appear in the original TOML document.
//
// This includes keys that haven't been decoded because of a Primitive value.
// Once the Primitive value is decoded, the keys will be considered decoded.
//
// Also note that decoding into an empty interface will result in no decoding,
// and so no keys will be considered decoded.
//
// In this sense, the Undecoded keys correspond to keys in the TOML document
// that do not have a concrete type in your representation.
func (md *MetaData) Undecoded() []Key {
undecoded := make([]Key, 0, len(md.keys))
for _, key := range md.keys {
if !md.decoded[key.String()] {
undecoded = append(undecoded, key)
}
}
return undecoded
}
-27
View File
@@ -1,27 +0,0 @@
/*
Package toml provides facilities for decoding and encoding TOML configuration
files via reflection. There is also support for delaying decoding with
the Primitive type, and querying the set of keys in a TOML document with the
MetaData type.
The specification implemented: https://github.com/toml-lang/toml
The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
whether a file is a valid TOML document. It can also be used to print the
type of each key in a TOML document.
Testing
There are two important types of tests used for this package. The first is
contained inside '*_test.go' files and uses the standard Go unit testing
framework. These tests are primarily devoted to holistically testing the
decoder and encoder.
The second type of testing is used to verify the implementation's adherence
to the TOML specification. These tests have been factored into their own
project: https://github.com/BurntSushi/toml-test
The reason the tests are in a separate project is so that they can be used by
any implementation of TOML. Namely, it is language agnostic.
*/
package toml
-568
View File
@@ -1,568 +0,0 @@
package toml
import (
"bufio"
"errors"
"fmt"
"io"
"reflect"
"sort"
"strconv"
"strings"
"time"
)
type tomlEncodeError struct{ error }
var (
errArrayMixedElementTypes = errors.New(
"toml: cannot encode array with mixed element types")
errArrayNilElement = errors.New(
"toml: cannot encode array with nil element")
errNonString = errors.New(
"toml: cannot encode a map with non-string key type")
errAnonNonStruct = errors.New(
"toml: cannot encode an anonymous field that is not a struct")
errArrayNoTable = errors.New(
"toml: TOML array element cannot contain a table")
errNoKey = errors.New(
"toml: top-level values must be Go maps or structs")
errAnything = errors.New("") // used in testing
)
var quotedReplacer = strings.NewReplacer(
"\t", "\\t",
"\n", "\\n",
"\r", "\\r",
"\"", "\\\"",
"\\", "\\\\",
)
// Encoder controls the encoding of Go values to a TOML document to some
// io.Writer.
//
// The indentation level can be controlled with the Indent field.
type Encoder struct {
// A single indentation level. By default it is two spaces.
Indent string
// hasWritten is whether we have written any output to w yet.
hasWritten bool
w *bufio.Writer
}
// NewEncoder returns a TOML encoder that encodes Go values to the io.Writer
// given. By default, a single indentation level is 2 spaces.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{
w: bufio.NewWriter(w),
Indent: " ",
}
}
// Encode writes a TOML representation of the Go value to the underlying
// io.Writer. If the value given cannot be encoded to a valid TOML document,
// then an error is returned.
//
// The mapping between Go values and TOML values should be precisely the same
// as for the Decode* functions. Similarly, the TextMarshaler interface is
// supported by encoding the resulting bytes as strings. (If you want to write
// arbitrary binary data then you will need to use something like base64 since
// TOML does not have any binary types.)
//
// When encoding TOML hashes (i.e., Go maps or structs), keys without any
// sub-hashes are encoded first.
//
// If a Go map is encoded, then its keys are sorted alphabetically for
// deterministic output. More control over this behavior may be provided if
// there is demand for it.
//
// Encoding Go values without a corresponding TOML representation---like map
// types with non-string keys---will cause an error to be returned. Similarly
// for mixed arrays/slices, arrays/slices with nil elements, embedded
// non-struct types and nested slices containing maps or structs.
// (e.g., [][]map[string]string is not allowed but []map[string]string is OK
// and so is []map[string][]string.)
func (enc *Encoder) Encode(v interface{}) error {
rv := eindirect(reflect.ValueOf(v))
if err := enc.safeEncode(Key([]string{}), rv); err != nil {
return err
}
return enc.w.Flush()
}
func (enc *Encoder) safeEncode(key Key, rv reflect.Value) (err error) {
defer func() {
if r := recover(); r != nil {
if terr, ok := r.(tomlEncodeError); ok {
err = terr.error
return
}
panic(r)
}
}()
enc.encode(key, rv)
return nil
}
func (enc *Encoder) encode(key Key, rv reflect.Value) {
// Special case. Time needs to be in ISO8601 format.
// Special case. If we can marshal the type to text, then we used that.
// Basically, this prevents the encoder for handling these types as
// generic structs (or whatever the underlying type of a TextMarshaler is).
switch rv.Interface().(type) {
case time.Time, TextMarshaler:
enc.keyEqElement(key, rv)
return
}
k := rv.Kind()
switch k {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64,
reflect.Float32, reflect.Float64, reflect.String, reflect.Bool:
enc.keyEqElement(key, rv)
case reflect.Array, reflect.Slice:
if typeEqual(tomlArrayHash, tomlTypeOfGo(rv)) {
enc.eArrayOfTables(key, rv)
} else {
enc.keyEqElement(key, rv)
}
case reflect.Interface:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Map:
if rv.IsNil() {
return
}
enc.eTable(key, rv)
case reflect.Ptr:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Struct:
enc.eTable(key, rv)
default:
panic(e("unsupported type for key '%s': %s", key, k))
}
}
// eElement encodes any value that can be an array element (primitives and
// arrays).
func (enc *Encoder) eElement(rv reflect.Value) {
switch v := rv.Interface().(type) {
case time.Time:
// Special case time.Time as a primitive. Has to come before
// TextMarshaler below because time.Time implements
// encoding.TextMarshaler, but we need to always use UTC.
enc.wf(v.UTC().Format("2006-01-02T15:04:05Z"))
return
case TextMarshaler:
// Special case. Use text marshaler if it's available for this value.
if s, err := v.MarshalText(); err != nil {
encPanic(err)
} else {
enc.writeQuoted(string(s))
}
return
}
switch rv.Kind() {
case reflect.Bool:
enc.wf(strconv.FormatBool(rv.Bool()))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64:
enc.wf(strconv.FormatInt(rv.Int(), 10))
case reflect.Uint, reflect.Uint8, reflect.Uint16,
reflect.Uint32, reflect.Uint64:
enc.wf(strconv.FormatUint(rv.Uint(), 10))
case reflect.Float32:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 32)))
case reflect.Float64:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 64)))
case reflect.Array, reflect.Slice:
enc.eArrayOrSliceElement(rv)
case reflect.Interface:
enc.eElement(rv.Elem())
case reflect.String:
enc.writeQuoted(rv.String())
default:
panic(e("unexpected primitive type: %s", rv.Kind()))
}
}
// By the TOML spec, all floats must have a decimal with at least one
// number on either side.
func floatAddDecimal(fstr string) string {
if !strings.Contains(fstr, ".") {
return fstr + ".0"
}
return fstr
}
func (enc *Encoder) writeQuoted(s string) {
enc.wf("\"%s\"", quotedReplacer.Replace(s))
}
func (enc *Encoder) eArrayOrSliceElement(rv reflect.Value) {
length := rv.Len()
enc.wf("[")
for i := 0; i < length; i++ {
elem := rv.Index(i)
enc.eElement(elem)
if i != length-1 {
enc.wf(", ")
}
}
enc.wf("]")
}
func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
for i := 0; i < rv.Len(); i++ {
trv := rv.Index(i)
if isNil(trv) {
continue
}
panicIfInvalidKey(key)
enc.newline()
enc.wf("%s[[%s]]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
enc.eMapOrStruct(key, trv)
}
}
func (enc *Encoder) eTable(key Key, rv reflect.Value) {
panicIfInvalidKey(key)
if len(key) == 1 {
// Output an extra newline between top-level tables.
// (The newline isn't written if nothing else has been written though.)
enc.newline()
}
if len(key) > 0 {
enc.wf("%s[%s]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
}
enc.eMapOrStruct(key, rv)
}
func (enc *Encoder) eMapOrStruct(key Key, rv reflect.Value) {
switch rv := eindirect(rv); rv.Kind() {
case reflect.Map:
enc.eMap(key, rv)
case reflect.Struct:
enc.eStruct(key, rv)
default:
panic("eTable: unhandled reflect.Value Kind: " + rv.Kind().String())
}
}
func (enc *Encoder) eMap(key Key, rv reflect.Value) {
rt := rv.Type()
if rt.Key().Kind() != reflect.String {
encPanic(errNonString)
}
// Sort keys so that we have deterministic output. And write keys directly
// underneath this key first, before writing sub-structs or sub-maps.
var mapKeysDirect, mapKeysSub []string
for _, mapKey := range rv.MapKeys() {
k := mapKey.String()
if typeIsHash(tomlTypeOfGo(rv.MapIndex(mapKey))) {
mapKeysSub = append(mapKeysSub, k)
} else {
mapKeysDirect = append(mapKeysDirect, k)
}
}
var writeMapKeys = func(mapKeys []string) {
sort.Strings(mapKeys)
for _, mapKey := range mapKeys {
mrv := rv.MapIndex(reflect.ValueOf(mapKey))
if isNil(mrv) {
// Don't write anything for nil fields.
continue
}
enc.encode(key.add(mapKey), mrv)
}
}
writeMapKeys(mapKeysDirect)
writeMapKeys(mapKeysSub)
}
func (enc *Encoder) eStruct(key Key, rv reflect.Value) {
// Write keys for fields directly under this key first, because if we write
// a field that creates a new table, then all keys under it will be in that
// table (not the one we're writing here).
rt := rv.Type()
var fieldsDirect, fieldsSub [][]int
var addFields func(rt reflect.Type, rv reflect.Value, start []int)
addFields = func(rt reflect.Type, rv reflect.Value, start []int) {
for i := 0; i < rt.NumField(); i++ {
f := rt.Field(i)
// skip unexported fields
if f.PkgPath != "" && !f.Anonymous {
continue
}
frv := rv.Field(i)
if f.Anonymous {
t := f.Type
switch t.Kind() {
case reflect.Struct:
// Treat anonymous struct fields with
// tag names as though they are not
// anonymous, like encoding/json does.
if getOptions(f.Tag).name == "" {
addFields(t, frv, f.Index)
continue
}
case reflect.Ptr:
if t.Elem().Kind() == reflect.Struct &&
getOptions(f.Tag).name == "" {
if !frv.IsNil() {
addFields(t.Elem(), frv.Elem(), f.Index)
}
continue
}
// Fall through to the normal field encoding logic below
// for non-struct anonymous fields.
}
}
if typeIsHash(tomlTypeOfGo(frv)) {
fieldsSub = append(fieldsSub, append(start, f.Index...))
} else {
fieldsDirect = append(fieldsDirect, append(start, f.Index...))
}
}
}
addFields(rt, rv, nil)
var writeFields = func(fields [][]int) {
for _, fieldIndex := range fields {
sft := rt.FieldByIndex(fieldIndex)
sf := rv.FieldByIndex(fieldIndex)
if isNil(sf) {
// Don't write anything for nil fields.
continue
}
opts := getOptions(sft.Tag)
if opts.skip {
continue
}
keyName := sft.Name
if opts.name != "" {
keyName = opts.name
}
if opts.omitempty && isEmpty(sf) {
continue
}
if opts.omitzero && isZero(sf) {
continue
}
enc.encode(key.add(keyName), sf)
}
}
writeFields(fieldsDirect)
writeFields(fieldsSub)
}
// tomlTypeName returns the TOML type name of the Go value's type. It is
// used to determine whether the types of array elements are mixed (which is
// forbidden). If the Go value is nil, then it is illegal for it to be an array
// element, and valueIsNil is returned as true.
// Returns the TOML type of a Go value. The type may be `nil`, which means
// no concrete TOML type could be found.
func tomlTypeOfGo(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() {
return nil
}
switch rv.Kind() {
case reflect.Bool:
return tomlBool
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64:
return tomlInteger
case reflect.Float32, reflect.Float64:
return tomlFloat
case reflect.Array, reflect.Slice:
if typeEqual(tomlHash, tomlArrayType(rv)) {
return tomlArrayHash
}
return tomlArray
case reflect.Ptr, reflect.Interface:
return tomlTypeOfGo(rv.Elem())
case reflect.String:
return tomlString
case reflect.Map:
return tomlHash
case reflect.Struct:
switch rv.Interface().(type) {
case time.Time:
return tomlDatetime
case TextMarshaler:
return tomlString
default:
return tomlHash
}
default:
panic("unexpected reflect.Kind: " + rv.Kind().String())
}
}
// tomlArrayType returns the element type of a TOML array. The type returned
// may be nil if it cannot be determined (e.g., a nil slice or a zero length
// slize). This function may also panic if it finds a type that cannot be
// expressed in TOML (such as nil elements, heterogeneous arrays or directly
// nested arrays of tables).
func tomlArrayType(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() || rv.Len() == 0 {
return nil
}
firstType := tomlTypeOfGo(rv.Index(0))
if firstType == nil {
encPanic(errArrayNilElement)
}
rvlen := rv.Len()
for i := 1; i < rvlen; i++ {
elem := rv.Index(i)
switch elemType := tomlTypeOfGo(elem); {
case elemType == nil:
encPanic(errArrayNilElement)
case !typeEqual(firstType, elemType):
encPanic(errArrayMixedElementTypes)
}
}
// If we have a nested array, then we must make sure that the nested
// array contains ONLY primitives.
// This checks arbitrarily nested arrays.
if typeEqual(firstType, tomlArray) || typeEqual(firstType, tomlArrayHash) {
nest := tomlArrayType(eindirect(rv.Index(0)))
if typeEqual(nest, tomlHash) || typeEqual(nest, tomlArrayHash) {
encPanic(errArrayNoTable)
}
}
return firstType
}
type tagOptions struct {
skip bool // "-"
name string
omitempty bool
omitzero bool
}
func getOptions(tag reflect.StructTag) tagOptions {
t := tag.Get("toml")
if t == "-" {
return tagOptions{skip: true}
}
var opts tagOptions
parts := strings.Split(t, ",")
opts.name = parts[0]
for _, s := range parts[1:] {
switch s {
case "omitempty":
opts.omitempty = true
case "omitzero":
opts.omitzero = true
}
}
return opts
}
func isZero(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return rv.Uint() == 0
case reflect.Float32, reflect.Float64:
return rv.Float() == 0.0
}
return false
}
func isEmpty(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
return rv.Len() == 0
case reflect.Bool:
return !rv.Bool()
}
return false
}
func (enc *Encoder) newline() {
if enc.hasWritten {
enc.wf("\n")
}
}
func (enc *Encoder) keyEqElement(key Key, val reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
panicIfInvalidKey(key)
enc.wf("%s%s = ", enc.indentStr(key), key.maybeQuoted(len(key)-1))
enc.eElement(val)
enc.newline()
}
func (enc *Encoder) wf(format string, v ...interface{}) {
if _, err := fmt.Fprintf(enc.w, format, v...); err != nil {
encPanic(err)
}
enc.hasWritten = true
}
func (enc *Encoder) indentStr(key Key) string {
return strings.Repeat(enc.Indent, len(key)-1)
}
func encPanic(err error) {
panic(tomlEncodeError{err})
}
func eindirect(v reflect.Value) reflect.Value {
switch v.Kind() {
case reflect.Ptr, reflect.Interface:
return eindirect(v.Elem())
default:
return v
}
}
func isNil(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return rv.IsNil()
default:
return false
}
}
func panicIfInvalidKey(key Key) {
for _, k := range key {
if len(k) == 0 {
encPanic(e("Key '%s' is not a valid table name. Key names "+
"cannot be empty.", key.maybeQuotedAll()))
}
}
}
func isValidKeyName(s string) bool {
return len(s) != 0
}
-19
View File
@@ -1,19 +0,0 @@
// +build go1.2
package toml
// In order to support Go 1.1, we define our own TextMarshaler and
// TextUnmarshaler types. For Go 1.2+, we just alias them with the
// standard library interfaces.
import (
"encoding"
)
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler encoding.TextMarshaler
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler encoding.TextUnmarshaler
-18
View File
@@ -1,18 +0,0 @@
// +build !go1.2
package toml
// These interfaces were introduced in Go 1.2, so we add them manually when
// compiling for Go 1.1.
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler interface {
MarshalText() (text []byte, err error)
}
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler interface {
UnmarshalText(text []byte) error
}
-953
View File
@@ -1,953 +0,0 @@
package toml
import (
"fmt"
"strings"
"unicode"
"unicode/utf8"
)
type itemType int
const (
itemError itemType = iota
itemNIL // used in the parser to indicate no type
itemEOF
itemText
itemString
itemRawString
itemMultilineString
itemRawMultilineString
itemBool
itemInteger
itemFloat
itemDatetime
itemArray // the start of an array
itemArrayEnd
itemTableStart
itemTableEnd
itemArrayTableStart
itemArrayTableEnd
itemKeyStart
itemCommentStart
itemInlineTableStart
itemInlineTableEnd
)
const (
eof = 0
comma = ','
tableStart = '['
tableEnd = ']'
arrayTableStart = '['
arrayTableEnd = ']'
tableSep = '.'
keySep = '='
arrayStart = '['
arrayEnd = ']'
commentStart = '#'
stringStart = '"'
stringEnd = '"'
rawStringStart = '\''
rawStringEnd = '\''
inlineTableStart = '{'
inlineTableEnd = '}'
)
type stateFn func(lx *lexer) stateFn
type lexer struct {
input string
start int
pos int
line int
state stateFn
items chan item
// Allow for backing up up to three runes.
// This is necessary because TOML contains 3-rune tokens (""" and ''').
prevWidths [3]int
nprev int // how many of prevWidths are in use
// If we emit an eof, we can still back up, but it is not OK to call
// next again.
atEOF bool
// A stack of state functions used to maintain context.
// The idea is to reuse parts of the state machine in various places.
// For example, values can appear at the top level or within arbitrarily
// nested arrays. The last state on the stack is used after a value has
// been lexed. Similarly for comments.
stack []stateFn
}
type item struct {
typ itemType
val string
line int
}
func (lx *lexer) nextItem() item {
for {
select {
case item := <-lx.items:
return item
default:
lx.state = lx.state(lx)
}
}
}
func lex(input string) *lexer {
lx := &lexer{
input: input,
state: lexTop,
line: 1,
items: make(chan item, 10),
stack: make([]stateFn, 0, 10),
}
return lx
}
func (lx *lexer) push(state stateFn) {
lx.stack = append(lx.stack, state)
}
func (lx *lexer) pop() stateFn {
if len(lx.stack) == 0 {
return lx.errorf("BUG in lexer: no states to pop")
}
last := lx.stack[len(lx.stack)-1]
lx.stack = lx.stack[0 : len(lx.stack)-1]
return last
}
func (lx *lexer) current() string {
return lx.input[lx.start:lx.pos]
}
func (lx *lexer) emit(typ itemType) {
lx.items <- item{typ, lx.current(), lx.line}
lx.start = lx.pos
}
func (lx *lexer) emitTrim(typ itemType) {
lx.items <- item{typ, strings.TrimSpace(lx.current()), lx.line}
lx.start = lx.pos
}
func (lx *lexer) next() (r rune) {
if lx.atEOF {
panic("next called after EOF")
}
if lx.pos >= len(lx.input) {
lx.atEOF = true
return eof
}
if lx.input[lx.pos] == '\n' {
lx.line++
}
lx.prevWidths[2] = lx.prevWidths[1]
lx.prevWidths[1] = lx.prevWidths[0]
if lx.nprev < 3 {
lx.nprev++
}
r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
lx.prevWidths[0] = w
lx.pos += w
return r
}
// ignore skips over the pending input before this point.
func (lx *lexer) ignore() {
lx.start = lx.pos
}
// backup steps back one rune. Can be called only twice between calls to next.
func (lx *lexer) backup() {
if lx.atEOF {
lx.atEOF = false
return
}
if lx.nprev < 1 {
panic("backed up too far")
}
w := lx.prevWidths[0]
lx.prevWidths[0] = lx.prevWidths[1]
lx.prevWidths[1] = lx.prevWidths[2]
lx.nprev--
lx.pos -= w
if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
lx.line--
}
}
// accept consumes the next rune if it's equal to `valid`.
func (lx *lexer) accept(valid rune) bool {
if lx.next() == valid {
return true
}
lx.backup()
return false
}
// peek returns but does not consume the next rune in the input.
func (lx *lexer) peek() rune {
r := lx.next()
lx.backup()
return r
}
// skip ignores all input that matches the given predicate.
func (lx *lexer) skip(pred func(rune) bool) {
for {
r := lx.next()
if pred(r) {
continue
}
lx.backup()
lx.ignore()
return
}
}
// errorf stops all lexing by emitting an error and returning `nil`.
// Note that any value that is a character is escaped if it's a special
// character (newlines, tabs, etc.).
func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
lx.items <- item{
itemError,
fmt.Sprintf(format, values...),
lx.line,
}
return nil
}
// lexTop consumes elements at the top level of TOML data.
func lexTop(lx *lexer) stateFn {
r := lx.next()
if isWhitespace(r) || isNL(r) {
return lexSkip(lx, lexTop)
}
switch r {
case commentStart:
lx.push(lexTop)
return lexCommentStart
case tableStart:
return lexTableStart
case eof:
if lx.pos > lx.start {
return lx.errorf("unexpected EOF")
}
lx.emit(itemEOF)
return nil
}
// At this point, the only valid item can be a key, so we back up
// and let the key lexer do the rest.
lx.backup()
lx.push(lexTopEnd)
return lexKeyStart
}
// lexTopEnd is entered whenever a top-level item has been consumed. (A value
// or a table.) It must see only whitespace, and will turn back to lexTop
// upon a newline. If it sees EOF, it will quit the lexer successfully.
func lexTopEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case r == commentStart:
// a comment will read to a newline for us.
lx.push(lexTop)
return lexCommentStart
case isWhitespace(r):
return lexTopEnd
case isNL(r):
lx.ignore()
return lexTop
case r == eof:
lx.emit(itemEOF)
return nil
}
return lx.errorf("expected a top-level item to end with a newline, "+
"comment, or EOF, but got %q instead", r)
}
// lexTable lexes the beginning of a table. Namely, it makes sure that
// it starts with a character other than '.' and ']'.
// It assumes that '[' has already been consumed.
// It also handles the case that this is an item in an array of tables.
// e.g., '[[name]]'.
func lexTableStart(lx *lexer) stateFn {
if lx.peek() == arrayTableStart {
lx.next()
lx.emit(itemArrayTableStart)
lx.push(lexArrayTableEnd)
} else {
lx.emit(itemTableStart)
lx.push(lexTableEnd)
}
return lexTableNameStart
}
func lexTableEnd(lx *lexer) stateFn {
lx.emit(itemTableEnd)
return lexTopEnd
}
func lexArrayTableEnd(lx *lexer) stateFn {
if r := lx.next(); r != arrayTableEnd {
return lx.errorf("expected end of table array name delimiter %q, "+
"but got %q instead", arrayTableEnd, r)
}
lx.emit(itemArrayTableEnd)
return lexTopEnd
}
func lexTableNameStart(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.peek(); {
case r == tableEnd || r == eof:
return lx.errorf("unexpected end of table name " +
"(table names cannot be empty)")
case r == tableSep:
return lx.errorf("unexpected table separator " +
"(table names cannot be empty)")
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.push(lexTableNameEnd)
return lexValue // reuse string lexing
default:
return lexBareTableName
}
}
// lexBareTableName lexes the name of a table. It assumes that at least one
// valid character for the table has already been read.
func lexBareTableName(lx *lexer) stateFn {
r := lx.next()
if isBareKeyChar(r) {
return lexBareTableName
}
lx.backup()
lx.emit(itemText)
return lexTableNameEnd
}
// lexTableNameEnd reads the end of a piece of a table name, optionally
// consuming whitespace.
func lexTableNameEnd(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.next(); {
case isWhitespace(r):
return lexTableNameEnd
case r == tableSep:
lx.ignore()
return lexTableNameStart
case r == tableEnd:
return lx.pop()
default:
return lx.errorf("expected '.' or ']' to end table name, "+
"but got %q instead", r)
}
}
// lexKeyStart consumes a key name up until the first non-whitespace character.
// lexKeyStart will ignore whitespace.
func lexKeyStart(lx *lexer) stateFn {
r := lx.peek()
switch {
case r == keySep:
return lx.errorf("unexpected key separator %q", keySep)
case isWhitespace(r) || isNL(r):
lx.next()
return lexSkip(lx, lexKeyStart)
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.emit(itemKeyStart)
lx.push(lexKeyEnd)
return lexValue // reuse string lexing
default:
lx.ignore()
lx.emit(itemKeyStart)
return lexBareKey
}
}
// lexBareKey consumes the text of a bare key. Assumes that the first character
// (which is not whitespace) has not yet been consumed.
func lexBareKey(lx *lexer) stateFn {
switch r := lx.next(); {
case isBareKeyChar(r):
return lexBareKey
case isWhitespace(r):
lx.backup()
lx.emit(itemText)
return lexKeyEnd
case r == keySep:
lx.backup()
lx.emit(itemText)
return lexKeyEnd
default:
return lx.errorf("bare keys cannot contain %q", r)
}
}
// lexKeyEnd consumes the end of a key and trims whitespace (up to the key
// separator).
func lexKeyEnd(lx *lexer) stateFn {
switch r := lx.next(); {
case r == keySep:
return lexSkip(lx, lexValue)
case isWhitespace(r):
return lexSkip(lx, lexKeyEnd)
default:
return lx.errorf("expected key separator %q, but got %q instead",
keySep, r)
}
}
// lexValue starts the consumption of a value anywhere a value is expected.
// lexValue will ignore whitespace.
// After a value is lexed, the last state on the next is popped and returned.
func lexValue(lx *lexer) stateFn {
// We allow whitespace to precede a value, but NOT newlines.
// In array syntax, the array states are responsible for ignoring newlines.
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexValue)
case isDigit(r):
lx.backup() // avoid an extra state and use the same as above
return lexNumberOrDateStart
}
switch r {
case arrayStart:
lx.ignore()
lx.emit(itemArray)
return lexArrayValue
case inlineTableStart:
lx.ignore()
lx.emit(itemInlineTableStart)
return lexInlineTableValue
case stringStart:
if lx.accept(stringStart) {
if lx.accept(stringStart) {
lx.ignore() // Ignore """
return lexMultilineString
}
lx.backup()
}
lx.ignore() // ignore the '"'
return lexString
case rawStringStart:
if lx.accept(rawStringStart) {
if lx.accept(rawStringStart) {
lx.ignore() // Ignore """
return lexMultilineRawString
}
lx.backup()
}
lx.ignore() // ignore the "'"
return lexRawString
case '+', '-':
return lexNumberStart
case '.': // special error case, be kind to users
return lx.errorf("floats must start with a digit, not '.'")
}
if unicode.IsLetter(r) {
// Be permissive here; lexBool will give a nice error if the
// user wrote something like
// x = foo
// (i.e. not 'true' or 'false' but is something else word-like.)
lx.backup()
return lexBool
}
return lx.errorf("expected value but found %q instead", r)
}
// lexArrayValue consumes one value in an array. It assumes that '[' or ','
// have already been consumed. All whitespace and newlines are ignored.
func lexArrayValue(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValue)
case r == commentStart:
lx.push(lexArrayValue)
return lexCommentStart
case r == comma:
return lx.errorf("unexpected comma")
case r == arrayEnd:
// NOTE(caleb): The spec isn't clear about whether you can have
// a trailing comma or not, so we'll allow it.
return lexArrayEnd
}
lx.backup()
lx.push(lexArrayValueEnd)
return lexValue
}
// lexArrayValueEnd consumes everything between the end of an array value and
// the next value (or the end of the array): it ignores whitespace and newlines
// and expects either a ',' or a ']'.
func lexArrayValueEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValueEnd)
case r == commentStart:
lx.push(lexArrayValueEnd)
return lexCommentStart
case r == comma:
lx.ignore()
return lexArrayValue // move on to the next value
case r == arrayEnd:
return lexArrayEnd
}
return lx.errorf(
"expected a comma or array terminator %q, but got %q instead",
arrayEnd, r,
)
}
// lexArrayEnd finishes the lexing of an array.
// It assumes that a ']' has just been consumed.
func lexArrayEnd(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemArrayEnd)
return lx.pop()
}
// lexInlineTableValue consumes one key/value pair in an inline table.
// It assumes that '{' or ',' have already been consumed. Whitespace is ignored.
func lexInlineTableValue(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexInlineTableValue)
case isNL(r):
return lx.errorf("newlines not allowed within inline tables")
case r == commentStart:
lx.push(lexInlineTableValue)
return lexCommentStart
case r == comma:
return lx.errorf("unexpected comma")
case r == inlineTableEnd:
return lexInlineTableEnd
}
lx.backup()
lx.push(lexInlineTableValueEnd)
return lexKeyStart
}
// lexInlineTableValueEnd consumes everything between the end of an inline table
// key/value pair and the next pair (or the end of the table):
// it ignores whitespace and expects either a ',' or a '}'.
func lexInlineTableValueEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexInlineTableValueEnd)
case isNL(r):
return lx.errorf("newlines not allowed within inline tables")
case r == commentStart:
lx.push(lexInlineTableValueEnd)
return lexCommentStart
case r == comma:
lx.ignore()
return lexInlineTableValue
case r == inlineTableEnd:
return lexInlineTableEnd
}
return lx.errorf("expected a comma or an inline table terminator %q, "+
"but got %q instead", inlineTableEnd, r)
}
// lexInlineTableEnd finishes the lexing of an inline table.
// It assumes that a '}' has just been consumed.
func lexInlineTableEnd(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemInlineTableEnd)
return lx.pop()
}
// lexString consumes the inner contents of a string. It assumes that the
// beginning '"' has already been consumed and ignored.
func lexString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == eof:
return lx.errorf("unexpected EOF")
case isNL(r):
return lx.errorf("strings cannot contain newlines")
case r == '\\':
lx.push(lexString)
return lexStringEscape
case r == stringEnd:
lx.backup()
lx.emit(itemString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexString
}
// lexMultilineString consumes the inner contents of a string. It assumes that
// the beginning '"""' has already been consumed and ignored.
func lexMultilineString(lx *lexer) stateFn {
switch lx.next() {
case eof:
return lx.errorf("unexpected EOF")
case '\\':
return lexMultilineStringEscape
case stringEnd:
if lx.accept(stringEnd) {
if lx.accept(stringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineString
}
// lexRawString consumes a raw string. Nothing can be escaped in such a string.
// It assumes that the beginning "'" has already been consumed and ignored.
func lexRawString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == eof:
return lx.errorf("unexpected EOF")
case isNL(r):
return lx.errorf("strings cannot contain newlines")
case r == rawStringEnd:
lx.backup()
lx.emit(itemRawString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexRawString
}
// lexMultilineRawString consumes a raw string. Nothing can be escaped in such
// a string. It assumes that the beginning "'''" has already been consumed and
// ignored.
func lexMultilineRawString(lx *lexer) stateFn {
switch lx.next() {
case eof:
return lx.errorf("unexpected EOF")
case rawStringEnd:
if lx.accept(rawStringEnd) {
if lx.accept(rawStringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemRawMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineRawString
}
// lexMultilineStringEscape consumes an escaped character. It assumes that the
// preceding '\\' has already been consumed.
func lexMultilineStringEscape(lx *lexer) stateFn {
// Handle the special case first:
if isNL(lx.next()) {
return lexMultilineString
}
lx.backup()
lx.push(lexMultilineString)
return lexStringEscape(lx)
}
func lexStringEscape(lx *lexer) stateFn {
r := lx.next()
switch r {
case 'b':
fallthrough
case 't':
fallthrough
case 'n':
fallthrough
case 'f':
fallthrough
case 'r':
fallthrough
case '"':
fallthrough
case '\\':
return lx.pop()
case 'u':
return lexShortUnicodeEscape
case 'U':
return lexLongUnicodeEscape
}
return lx.errorf("invalid escape character %q; only the following "+
"escape characters are allowed: "+
`\b, \t, \n, \f, \r, \", \\, \uXXXX, and \UXXXXXXXX`, r)
}
func lexShortUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 4; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf(`expected four hexadecimal digits after '\u', `+
"but got %q instead", lx.current())
}
}
return lx.pop()
}
func lexLongUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 8; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf(`expected eight hexadecimal digits after '\U', `+
"but got %q instead", lx.current())
}
}
return lx.pop()
}
// lexNumberOrDateStart consumes either an integer, a float, or datetime.
func lexNumberOrDateStart(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '_':
return lexNumber
case 'e', 'E':
return lexFloat
case '.':
return lx.errorf("floats must start with a digit, not '.'")
}
return lx.errorf("expected a digit but got %q", r)
}
// lexNumberOrDate consumes either an integer, float or datetime.
func lexNumberOrDate(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '-':
return lexDatetime
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexDatetime consumes a Datetime, to a first approximation.
// The parser validates that it matches one of the accepted formats.
func lexDatetime(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexDatetime
}
switch r {
case '-', 'T', ':', '.', 'Z', '+':
return lexDatetime
}
lx.backup()
lx.emit(itemDatetime)
return lx.pop()
}
// lexNumberStart consumes either an integer or a float. It assumes that a sign
// has already been read, but that *no* digits have been consumed.
// lexNumberStart will move to the appropriate integer or float states.
func lexNumberStart(lx *lexer) stateFn {
// We MUST see a digit. Even floats have to start with a digit.
r := lx.next()
if !isDigit(r) {
if r == '.' {
return lx.errorf("floats must start with a digit, not '.'")
}
return lx.errorf("expected a digit but got %q", r)
}
return lexNumber
}
// lexNumber consumes an integer or a float after seeing the first digit.
func lexNumber(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumber
}
switch r {
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexFloat consumes the elements of a float. It allows any sequence of
// float-like characters, so floats emitted by the lexer are only a first
// approximation and must be validated by the parser.
func lexFloat(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexFloat
}
switch r {
case '_', '.', '-', '+', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemFloat)
return lx.pop()
}
// lexBool consumes a bool string: 'true' or 'false.
func lexBool(lx *lexer) stateFn {
var rs []rune
for {
r := lx.next()
if !unicode.IsLetter(r) {
lx.backup()
break
}
rs = append(rs, r)
}
s := string(rs)
switch s {
case "true", "false":
lx.emit(itemBool)
return lx.pop()
}
return lx.errorf("expected value but found %q instead", s)
}
// lexCommentStart begins the lexing of a comment. It will emit
// itemCommentStart and consume no characters, passing control to lexComment.
func lexCommentStart(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemCommentStart)
return lexComment
}
// lexComment lexes an entire comment. It assumes that '#' has been consumed.
// It will consume *up to* the first newline character, and pass control
// back to the last state on the stack.
func lexComment(lx *lexer) stateFn {
r := lx.peek()
if isNL(r) || r == eof {
lx.emit(itemText)
return lx.pop()
}
lx.next()
return lexComment
}
// lexSkip ignores all slurped input and moves on to the next state.
func lexSkip(lx *lexer, nextState stateFn) stateFn {
return func(lx *lexer) stateFn {
lx.ignore()
return nextState
}
}
// isWhitespace returns true if `r` is a whitespace character according
// to the spec.
func isWhitespace(r rune) bool {
return r == '\t' || r == ' '
}
func isNL(r rune) bool {
return r == '\n' || r == '\r'
}
func isDigit(r rune) bool {
return r >= '0' && r <= '9'
}
func isHexadecimal(r rune) bool {
return (r >= '0' && r <= '9') ||
(r >= 'a' && r <= 'f') ||
(r >= 'A' && r <= 'F')
}
func isBareKeyChar(r rune) bool {
return (r >= 'A' && r <= 'Z') ||
(r >= 'a' && r <= 'z') ||
(r >= '0' && r <= '9') ||
r == '_' ||
r == '-'
}
func (itype itemType) String() string {
switch itype {
case itemError:
return "Error"
case itemNIL:
return "NIL"
case itemEOF:
return "EOF"
case itemText:
return "Text"
case itemString, itemRawString, itemMultilineString, itemRawMultilineString:
return "String"
case itemBool:
return "Bool"
case itemInteger:
return "Integer"
case itemFloat:
return "Float"
case itemDatetime:
return "DateTime"
case itemTableStart:
return "TableStart"
case itemTableEnd:
return "TableEnd"
case itemKeyStart:
return "KeyStart"
case itemArray:
return "Array"
case itemArrayEnd:
return "ArrayEnd"
case itemCommentStart:
return "CommentStart"
}
panic(fmt.Sprintf("BUG: Unknown type '%d'.", int(itype)))
}
func (item item) String() string {
return fmt.Sprintf("(%s, %s)", item.typ.String(), item.val)
}
-592
View File
@@ -1,592 +0,0 @@
package toml
import (
"fmt"
"strconv"
"strings"
"time"
"unicode"
"unicode/utf8"
)
type parser struct {
mapping map[string]interface{}
types map[string]tomlType
lx *lexer
// A list of keys in the order that they appear in the TOML data.
ordered []Key
// the full key for the current hash in scope
context Key
// the base key name for everything except hashes
currentKey string
// rough approximation of line number
approxLine int
// A map of 'key.group.names' to whether they were created implicitly.
implicits map[string]bool
}
type parseError string
func (pe parseError) Error() string {
return string(pe)
}
func parse(data string) (p *parser, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
if err, ok = r.(parseError); ok {
return
}
panic(r)
}
}()
p = &parser{
mapping: make(map[string]interface{}),
types: make(map[string]tomlType),
lx: lex(data),
ordered: make([]Key, 0),
implicits: make(map[string]bool),
}
for {
item := p.next()
if item.typ == itemEOF {
break
}
p.topLevel(item)
}
return p, nil
}
func (p *parser) panicf(format string, v ...interface{}) {
msg := fmt.Sprintf("Near line %d (last key parsed '%s'): %s",
p.approxLine, p.current(), fmt.Sprintf(format, v...))
panic(parseError(msg))
}
func (p *parser) next() item {
it := p.lx.nextItem()
if it.typ == itemError {
p.panicf("%s", it.val)
}
return it
}
func (p *parser) bug(format string, v ...interface{}) {
panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
}
func (p *parser) expect(typ itemType) item {
it := p.next()
p.assertEqual(typ, it.typ)
return it
}
func (p *parser) assertEqual(expected, got itemType) {
if expected != got {
p.bug("Expected '%s' but got '%s'.", expected, got)
}
}
func (p *parser) topLevel(item item) {
switch item.typ {
case itemCommentStart:
p.approxLine = item.line
p.expect(itemText)
case itemTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemTableEnd, kg.typ)
p.establishContext(key, false)
p.setType("", tomlHash)
p.ordered = append(p.ordered, key)
case itemArrayTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemArrayTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemArrayTableEnd, kg.typ)
p.establishContext(key, true)
p.setType("", tomlArrayHash)
p.ordered = append(p.ordered, key)
case itemKeyStart:
kname := p.next()
p.approxLine = kname.line
p.currentKey = p.keyString(kname)
val, typ := p.value(p.next())
p.setValue(p.currentKey, val)
p.setType(p.currentKey, typ)
p.ordered = append(p.ordered, p.context.add(p.currentKey))
p.currentKey = ""
default:
p.bug("Unexpected type at top level: %s", item.typ)
}
}
// Gets a string for a key (or part of a key in a table name).
func (p *parser) keyString(it item) string {
switch it.typ {
case itemText:
return it.val
case itemString, itemMultilineString,
itemRawString, itemRawMultilineString:
s, _ := p.value(it)
return s.(string)
default:
p.bug("Unexpected key type: %s", it.typ)
panic("unreachable")
}
}
// value translates an expected value from the lexer into a Go value wrapped
// as an empty interface.
func (p *parser) value(it item) (interface{}, tomlType) {
switch it.typ {
case itemString:
return p.replaceEscapes(it.val), p.typeOfPrimitive(it)
case itemMultilineString:
trimmed := stripFirstNewline(stripEscapedWhitespace(it.val))
return p.replaceEscapes(trimmed), p.typeOfPrimitive(it)
case itemRawString:
return it.val, p.typeOfPrimitive(it)
case itemRawMultilineString:
return stripFirstNewline(it.val), p.typeOfPrimitive(it)
case itemBool:
switch it.val {
case "true":
return true, p.typeOfPrimitive(it)
case "false":
return false, p.typeOfPrimitive(it)
}
p.bug("Expected boolean value, but got '%s'.", it.val)
case itemInteger:
if !numUnderscoresOK(it.val) {
p.panicf("Invalid integer %q: underscores must be surrounded by digits",
it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseInt(val, 10, 64)
if err != nil {
// Distinguish integer values. Normally, it'd be a bug if the lexer
// provides an invalid integer, but it's possible that the number is
// out of range of valid values (which the lexer cannot determine).
// So mark the former as a bug but the latter as a legitimate user
// error.
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Integer '%s' is out of the range of 64-bit "+
"signed integers.", it.val)
} else {
p.bug("Expected integer value, but got '%s'.", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemFloat:
parts := strings.FieldsFunc(it.val, func(r rune) bool {
switch r {
case '.', 'e', 'E':
return true
}
return false
})
for _, part := range parts {
if !numUnderscoresOK(part) {
p.panicf("Invalid float %q: underscores must be "+
"surrounded by digits", it.val)
}
}
if !numPeriodsOK(it.val) {
// As a special case, numbers like '123.' or '1.e2',
// which are valid as far as Go/strconv are concerned,
// must be rejected because TOML says that a fractional
// part consists of '.' followed by 1+ digits.
p.panicf("Invalid float %q: '.' must be followed "+
"by one or more digits", it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseFloat(val, 64)
if err != nil {
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Float '%s' is out of the range of 64-bit "+
"IEEE-754 floating-point numbers.", it.val)
} else {
p.panicf("Invalid float value: %q", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemDatetime:
var t time.Time
var ok bool
var err error
for _, format := range []string{
"2006-01-02T15:04:05Z07:00",
"2006-01-02T15:04:05",
"2006-01-02",
} {
t, err = time.ParseInLocation(format, it.val, time.Local)
if err == nil {
ok = true
break
}
}
if !ok {
p.panicf("Invalid TOML Datetime: %q.", it.val)
}
return t, p.typeOfPrimitive(it)
case itemArray:
array := make([]interface{}, 0)
types := make([]tomlType, 0)
for it = p.next(); it.typ != itemArrayEnd; it = p.next() {
if it.typ == itemCommentStart {
p.expect(itemText)
continue
}
val, typ := p.value(it)
array = append(array, val)
types = append(types, typ)
}
return array, p.typeOfArray(types)
case itemInlineTableStart:
var (
hash = make(map[string]interface{})
outerContext = p.context
outerKey = p.currentKey
)
p.context = append(p.context, p.currentKey)
p.currentKey = ""
for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
if it.typ != itemKeyStart {
p.bug("Expected key start but instead found %q, around line %d",
it.val, p.approxLine)
}
if it.typ == itemCommentStart {
p.expect(itemText)
continue
}
// retrieve key
k := p.next()
p.approxLine = k.line
kname := p.keyString(k)
// retrieve value
p.currentKey = kname
val, typ := p.value(p.next())
// make sure we keep metadata up to date
p.setType(kname, typ)
p.ordered = append(p.ordered, p.context.add(p.currentKey))
hash[kname] = val
}
p.context = outerContext
p.currentKey = outerKey
return hash, tomlHash
}
p.bug("Unexpected value type: %s", it.typ)
panic("unreachable")
}
// numUnderscoresOK checks whether each underscore in s is surrounded by
// characters that are not underscores.
func numUnderscoresOK(s string) bool {
accept := false
for _, r := range s {
if r == '_' {
if !accept {
return false
}
accept = false
continue
}
accept = true
}
return accept
}
// numPeriodsOK checks whether every period in s is followed by a digit.
func numPeriodsOK(s string) bool {
period := false
for _, r := range s {
if period && !isDigit(r) {
return false
}
period = r == '.'
}
return !period
}
// establishContext sets the current context of the parser,
// where the context is either a hash or an array of hashes. Which one is
// set depends on the value of the `array` parameter.
//
// Establishing the context also makes sure that the key isn't a duplicate, and
// will create implicit hashes automatically.
func (p *parser) establishContext(key Key, array bool) {
var ok bool
// Always start at the top level and drill down for our context.
hashContext := p.mapping
keyContext := make(Key, 0)
// We only need implicit hashes for key[0:-1]
for _, k := range key[0 : len(key)-1] {
_, ok = hashContext[k]
keyContext = append(keyContext, k)
// No key? Make an implicit hash and move on.
if !ok {
p.addImplicit(keyContext)
hashContext[k] = make(map[string]interface{})
}
// If the hash context is actually an array of tables, then set
// the hash context to the last element in that array.
//
// Otherwise, it better be a table, since this MUST be a key group (by
// virtue of it not being the last element in a key).
switch t := hashContext[k].(type) {
case []map[string]interface{}:
hashContext = t[len(t)-1]
case map[string]interface{}:
hashContext = t
default:
p.panicf("Key '%s' was already created as a hash.", keyContext)
}
}
p.context = keyContext
if array {
// If this is the first element for this array, then allocate a new
// list of tables for it.
k := key[len(key)-1]
if _, ok := hashContext[k]; !ok {
hashContext[k] = make([]map[string]interface{}, 0, 5)
}
// Add a new table. But make sure the key hasn't already been used
// for something else.
if hash, ok := hashContext[k].([]map[string]interface{}); ok {
hashContext[k] = append(hash, make(map[string]interface{}))
} else {
p.panicf("Key '%s' was already created and cannot be used as "+
"an array.", keyContext)
}
} else {
p.setValue(key[len(key)-1], make(map[string]interface{}))
}
p.context = append(p.context, key[len(key)-1])
}
// setValue sets the given key to the given value in the current context.
// It will make sure that the key hasn't already been defined, account for
// implicit key groups.
func (p *parser) setValue(key string, value interface{}) {
var tmpHash interface{}
var ok bool
hash := p.mapping
keyContext := make(Key, 0)
for _, k := range p.context {
keyContext = append(keyContext, k)
if tmpHash, ok = hash[k]; !ok {
p.bug("Context for key '%s' has not been established.", keyContext)
}
switch t := tmpHash.(type) {
case []map[string]interface{}:
// The context is a table of hashes. Pick the most recent table
// defined as the current hash.
hash = t[len(t)-1]
case map[string]interface{}:
hash = t
default:
p.bug("Expected hash to have type 'map[string]interface{}', but "+
"it has '%T' instead.", tmpHash)
}
}
keyContext = append(keyContext, key)
if _, ok := hash[key]; ok {
// Typically, if the given key has already been set, then we have
// to raise an error since duplicate keys are disallowed. However,
// it's possible that a key was previously defined implicitly. In this
// case, it is allowed to be redefined concretely. (See the
// `tests/valid/implicit-and-explicit-after.toml` test in `toml-test`.)
//
// But we have to make sure to stop marking it as an implicit. (So that
// another redefinition provokes an error.)
//
// Note that since it has already been defined (as a hash), we don't
// want to overwrite it. So our business is done.
if p.isImplicit(keyContext) {
p.removeImplicit(keyContext)
return
}
// Otherwise, we have a concrete key trying to override a previous
// key, which is *always* wrong.
p.panicf("Key '%s' has already been defined.", keyContext)
}
hash[key] = value
}
// setType sets the type of a particular value at a given key.
// It should be called immediately AFTER setValue.
//
// Note that if `key` is empty, then the type given will be applied to the
// current context (which is either a table or an array of tables).
func (p *parser) setType(key string, typ tomlType) {
keyContext := make(Key, 0, len(p.context)+1)
for _, k := range p.context {
keyContext = append(keyContext, k)
}
if len(key) > 0 { // allow type setting for hashes
keyContext = append(keyContext, key)
}
p.types[keyContext.String()] = typ
}
// addImplicit sets the given Key as having been created implicitly.
func (p *parser) addImplicit(key Key) {
p.implicits[key.String()] = true
}
// removeImplicit stops tagging the given key as having been implicitly
// created.
func (p *parser) removeImplicit(key Key) {
p.implicits[key.String()] = false
}
// isImplicit returns true if the key group pointed to by the key was created
// implicitly.
func (p *parser) isImplicit(key Key) bool {
return p.implicits[key.String()]
}
// current returns the full key name of the current context.
func (p *parser) current() string {
if len(p.currentKey) == 0 {
return p.context.String()
}
if len(p.context) == 0 {
return p.currentKey
}
return fmt.Sprintf("%s.%s", p.context, p.currentKey)
}
func stripFirstNewline(s string) string {
if len(s) == 0 || s[0] != '\n' {
return s
}
return s[1:]
}
func stripEscapedWhitespace(s string) string {
esc := strings.Split(s, "\\\n")
if len(esc) > 1 {
for i := 1; i < len(esc); i++ {
esc[i] = strings.TrimLeftFunc(esc[i], unicode.IsSpace)
}
}
return strings.Join(esc, "")
}
func (p *parser) replaceEscapes(str string) string {
var replaced []rune
s := []byte(str)
r := 0
for r < len(s) {
if s[r] != '\\' {
c, size := utf8.DecodeRune(s[r:])
r += size
replaced = append(replaced, c)
continue
}
r += 1
if r >= len(s) {
p.bug("Escape sequence at end of string.")
return ""
}
switch s[r] {
default:
p.bug("Expected valid escape code after \\, but got %q.", s[r])
return ""
case 'b':
replaced = append(replaced, rune(0x0008))
r += 1
case 't':
replaced = append(replaced, rune(0x0009))
r += 1
case 'n':
replaced = append(replaced, rune(0x000A))
r += 1
case 'f':
replaced = append(replaced, rune(0x000C))
r += 1
case 'r':
replaced = append(replaced, rune(0x000D))
r += 1
case '"':
replaced = append(replaced, rune(0x0022))
r += 1
case '\\':
replaced = append(replaced, rune(0x005C))
r += 1
case 'u':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+5). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+5])
replaced = append(replaced, escaped)
r += 5
case 'U':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+9). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+9])
replaced = append(replaced, escaped)
r += 9
}
}
return string(replaced)
}
func (p *parser) asciiEscapeToUnicode(bs []byte) rune {
s := string(bs)
hex, err := strconv.ParseUint(strings.ToLower(s), 16, 32)
if err != nil {
p.bug("Could not parse '%s' as a hexadecimal number, but the "+
"lexer claims it's OK: %s", s, err)
}
if !utf8.ValidRune(rune(hex)) {
p.panicf("Escaped character '\\u%s' is not valid UTF-8.", s)
}
return rune(hex)
}
func isStringType(ty itemType) bool {
return ty == itemString || ty == itemMultilineString ||
ty == itemRawString || ty == itemRawMultilineString
}
-1
View File
@@ -1 +0,0 @@
au BufWritePost *.go silent!make tags > /dev/null 2>&1
-91
View File
@@ -1,91 +0,0 @@
package toml
// tomlType represents any Go type that corresponds to a TOML type.
// While the first draft of the TOML spec has a simplistic type system that
// probably doesn't need this level of sophistication, we seem to be militating
// toward adding real composite types.
type tomlType interface {
typeString() string
}
// typeEqual accepts any two types and returns true if they are equal.
func typeEqual(t1, t2 tomlType) bool {
if t1 == nil || t2 == nil {
return false
}
return t1.typeString() == t2.typeString()
}
func typeIsHash(t tomlType) bool {
return typeEqual(t, tomlHash) || typeEqual(t, tomlArrayHash)
}
type tomlBaseType string
func (btype tomlBaseType) typeString() string {
return string(btype)
}
func (btype tomlBaseType) String() string {
return btype.typeString()
}
var (
tomlInteger tomlBaseType = "Integer"
tomlFloat tomlBaseType = "Float"
tomlDatetime tomlBaseType = "Datetime"
tomlString tomlBaseType = "String"
tomlBool tomlBaseType = "Bool"
tomlArray tomlBaseType = "Array"
tomlHash tomlBaseType = "Hash"
tomlArrayHash tomlBaseType = "ArrayHash"
)
// typeOfPrimitive returns a tomlType of any primitive value in TOML.
// Primitive values are: Integer, Float, Datetime, String and Bool.
//
// Passing a lexer item other than the following will cause a BUG message
// to occur: itemString, itemBool, itemInteger, itemFloat, itemDatetime.
func (p *parser) typeOfPrimitive(lexItem item) tomlType {
switch lexItem.typ {
case itemInteger:
return tomlInteger
case itemFloat:
return tomlFloat
case itemDatetime:
return tomlDatetime
case itemString:
return tomlString
case itemMultilineString:
return tomlString
case itemRawString:
return tomlString
case itemRawMultilineString:
return tomlString
case itemBool:
return tomlBool
}
p.bug("Cannot infer primitive type of lex item '%s'.", lexItem)
panic("unreachable")
}
// typeOfArray returns a tomlType for an array given a list of types of its
// values.
//
// In the current spec, if an array is homogeneous, then its type is always
// "Array". If the array is not homogeneous, an error is generated.
func (p *parser) typeOfArray(types []tomlType) tomlType {
// Empty arrays are cool.
if len(types) == 0 {
return tomlArray
}
theType := types[0]
for _, t := range types[1:] {
if !typeEqual(theType, t) {
p.panicf("Array contains values of type '%s' and '%s', but "+
"arrays must be homogeneous.", theType, t)
}
}
return tomlArray
}
-242
View File
@@ -1,242 +0,0 @@
package toml
// Struct field handling is adapted from code in encoding/json:
//
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the Go distribution.
import (
"reflect"
"sort"
"sync"
)
// A field represents a single field found in a struct.
type field struct {
name string // the name of the field (`toml` tag included)
tag bool // whether field has a `toml` tag
index []int // represents the depth of an anonymous field
typ reflect.Type // the type of the field
}
// byName sorts field by name, breaking ties with depth,
// then breaking ties with "name came from toml tag", then
// breaking ties with index sequence.
type byName []field
func (x byName) Len() int { return len(x) }
func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byName) Less(i, j int) bool {
if x[i].name != x[j].name {
return x[i].name < x[j].name
}
if len(x[i].index) != len(x[j].index) {
return len(x[i].index) < len(x[j].index)
}
if x[i].tag != x[j].tag {
return x[i].tag
}
return byIndex(x).Less(i, j)
}
// byIndex sorts field by index sequence.
type byIndex []field
func (x byIndex) Len() int { return len(x) }
func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byIndex) Less(i, j int) bool {
for k, xik := range x[i].index {
if k >= len(x[j].index) {
return false
}
if xik != x[j].index[k] {
return xik < x[j].index[k]
}
}
return len(x[i].index) < len(x[j].index)
}
// typeFields returns a list of fields that TOML should recognize for the given
// type. The algorithm is breadth-first search over the set of structs to
// include - the top struct and then any reachable anonymous structs.
func typeFields(t reflect.Type) []field {
// Anonymous fields to explore at the current level and the next.
current := []field{}
next := []field{{typ: t}}
// Count of queued names for current level and the next.
count := map[reflect.Type]int{}
nextCount := map[reflect.Type]int{}
// Types already visited at an earlier level.
visited := map[reflect.Type]bool{}
// Fields found.
var fields []field
for len(next) > 0 {
current, next = next, current[:0]
count, nextCount = nextCount, map[reflect.Type]int{}
for _, f := range current {
if visited[f.typ] {
continue
}
visited[f.typ] = true
// Scan f.typ for fields to include.
for i := 0; i < f.typ.NumField(); i++ {
sf := f.typ.Field(i)
if sf.PkgPath != "" && !sf.Anonymous { // unexported
continue
}
opts := getOptions(sf.Tag)
if opts.skip {
continue
}
index := make([]int, len(f.index)+1)
copy(index, f.index)
index[len(f.index)] = i
ft := sf.Type
if ft.Name() == "" && ft.Kind() == reflect.Ptr {
// Follow pointer.
ft = ft.Elem()
}
// Record found field and index sequence.
if opts.name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
tagged := opts.name != ""
name := opts.name
if name == "" {
name = sf.Name
}
fields = append(fields, field{name, tagged, index, ft})
if count[f.typ] > 1 {
// If there were multiple instances, add a second,
// so that the annihilation code will see a duplicate.
// It only cares about the distinction between 1 or 2,
// so don't bother generating any more copies.
fields = append(fields, fields[len(fields)-1])
}
continue
}
// Record new anonymous struct to explore in next round.
nextCount[ft]++
if nextCount[ft] == 1 {
f := field{name: ft.Name(), index: index, typ: ft}
next = append(next, f)
}
}
}
}
sort.Sort(byName(fields))
// Delete all fields that are hidden by the Go rules for embedded fields,
// except that fields with TOML tags are promoted.
// The fields are sorted in primary order of name, secondary order
// of field index length. Loop over names; for each name, delete
// hidden fields by choosing the one dominant field that survives.
out := fields[:0]
for advance, i := 0, 0; i < len(fields); i += advance {
// One iteration per name.
// Find the sequence of fields with the name of this first field.
fi := fields[i]
name := fi.name
for advance = 1; i+advance < len(fields); advance++ {
fj := fields[i+advance]
if fj.name != name {
break
}
}
if advance == 1 { // Only one field with this name
out = append(out, fi)
continue
}
dominant, ok := dominantField(fields[i : i+advance])
if ok {
out = append(out, dominant)
}
}
fields = out
sort.Sort(byIndex(fields))
return fields
}
// dominantField looks through the fields, all of which are known to
// have the same name, to find the single field that dominates the
// others using Go's embedding rules, modified by the presence of
// TOML tags. If there are multiple top-level fields, the boolean
// will be false: This condition is an error in Go and we skip all
// the fields.
func dominantField(fields []field) (field, bool) {
// The fields are sorted in increasing index-length order. The winner
// must therefore be one with the shortest index length. Drop all
// longer entries, which is easy: just truncate the slice.
length := len(fields[0].index)
tagged := -1 // Index of first tagged field.
for i, f := range fields {
if len(f.index) > length {
fields = fields[:i]
break
}
if f.tag {
if tagged >= 0 {
// Multiple tagged fields at the same level: conflict.
// Return no field.
return field{}, false
}
tagged = i
}
}
if tagged >= 0 {
return fields[tagged], true
}
// All remaining fields have the same length. If there's more than one,
// we have a conflict (two fields named "X" at the same level) and we
// return no field.
if len(fields) > 1 {
return field{}, false
}
return fields[0], true
}
var fieldCache struct {
sync.RWMutex
m map[reflect.Type][]field
}
// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
func cachedTypeFields(t reflect.Type) []field {
fieldCache.RLock()
f := fieldCache.m[t]
fieldCache.RUnlock()
if f != nil {
return f
}
// Compute fields without lock.
// Might duplicate effort but won't hold other computations back.
f = typeFields(t)
if f == nil {
f = []field{}
}
fieldCache.Lock()
if fieldCache.m == nil {
fieldCache.m = map[reflect.Type][]field{}
}
fieldCache.m[t] = f
fieldCache.Unlock()
return f
}
-12
View File
@@ -1,12 +0,0 @@
# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, build with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
-21
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@@ -1,21 +0,0 @@
MIT License
Copyright (c) 2018 Alexander Emelin
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
-7
View File
@@ -1,7 +0,0 @@
# eagle
Package eagle provides a functionality to export Prometheus metrics aggregated over configured time interval. This can be useful when you want to use Prometheus library to instrument your code but still want to periodically export metrics to non Prometheus monitoring systems.
At moment only Counters, Gauges and Summaries are supported.
[Godoc](https://godoc.org/github.com/FZambia/eagle)
-367
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@@ -1,367 +0,0 @@
// Package eagle provides a functionality to export Prometheus metrics
// aggregated over configured time interval. This can be useful when you
// want to use Prometheus library to instrument your code but still want
// to periodically export metrics to non Prometheus monitoring systems.
package eagle
import (
"fmt"
"math"
"strings"
"sync"
"time"
"github.com/prometheus/client_golang/prometheus"
dto "github.com/prometheus/client_model/go"
)
const defaultQuantileSep = "."
// MetricType is a type for different supported metric types.
type MetricType string
// Various metric types eagle supports.
const (
MetricTypeCounter = "counter"
MetricTypeGauge = "gauge"
MetricTypeSummary = "summary"
)
// Eagle allows to periodically export Prometheus metrics
// aggregated over configured time interval.
type Eagle struct {
mu sync.RWMutex
gatherer prometheus.Gatherer
interval time.Duration
sink chan<- Metrics
quantileSep string
values map[string]float64
deltas map[string]float64
closeOnce sync.Once
closeCh chan struct{}
}
// Config of Eagle instance.
type Config struct {
Gatherer prometheus.Gatherer
Interval time.Duration
Sink chan<- Metrics
QuantileSep string
}
// New creates new Eagle.
func New(c Config) *Eagle {
e := &Eagle{
gatherer: c.Gatherer,
interval: c.Interval,
sink: c.Sink,
quantileSep: defaultQuantileSep,
values: make(map[string]float64),
deltas: make(map[string]float64),
closeCh: make(chan struct{}),
}
if c.QuantileSep != "" {
e.quantileSep = c.QuantileSep
}
go e.aggregate()
return e
}
// Close closes Eagle.
func (e *Eagle) Close() error {
e.closeOnce.Do(func() {
close(e.closeCh)
})
return nil
}
// MetricValue is a concrete value of certain metric.
type MetricValue struct {
Name string `json:"name"`
Labels []string `json:"labels,omitempty"`
Value float64 `json:"value"`
}
// Metric is a single Prometheus metric that can have many MetricValue.
type Metric struct {
Type MetricType `json:"type"`
Namespace string `json:"namespace"`
Subsystem string `json:"subsystem"`
Name string `json:"name"`
Help string `json:"help,omitempty"`
Values []MetricValue `json:"values,omitempty"`
}
// Metrics represent collection of aggregated Prometheus metrics.
type Metrics struct {
Items []Metric `json:"items,omitempty"`
}
// Flatten is a helper method to flatten metrics into map[string]float64.
func (m Metrics) Flatten(sep string) map[string]float64 {
result := make(map[string]float64)
for _, item := range m.Items {
for _, metricValue := range item.Values {
parts := []string{}
if item.Namespace != "" {
parts = append(parts, item.Namespace)
}
if item.Subsystem != "" {
parts = append(parts, item.Subsystem)
}
if item.Name != "" {
parts = append(parts, item.Name)
}
if metricValue.Name != "" {
parts = append(parts, metricValue.Name)
}
parts = append(parts, metricValue.Labels...)
key := strings.Join(parts, sep)
result[key] = metricValue.Value
}
}
return result
}
type metricLabel struct {
Name string
Value string
}
func getCacheKey(name string, labels []metricLabel, suffix string) string {
key := name
path := joinLabels(labels, ".")
if path != "" {
key += "." + path
}
if suffix != "" {
key += "." + suffix
}
return key
}
func quantileString(val float64) string {
q := fmt.Sprintf("%d", int(val*1000))
if len(q) > 2 {
q = strings.TrimSuffix(q, "0")
}
return q
}
func (e *Eagle) aggregateOnce() {
mfs, err := e.gatherer.Gather()
if err != nil {
return
}
e.mu.Lock()
defer e.mu.Unlock()
for _, mf := range mfs {
typ := mf.GetType()
name := mf.GetName()
for _, m := range mf.GetMetric() {
if typ == dto.MetricType_COUNTER {
counter := m.GetCounter()
cacheKey := getCacheKey(name, getLabels(m.GetLabel()), "")
if previousVal, ok := e.values[cacheKey]; ok {
e.deltas[cacheKey] = counter.GetValue() - previousVal
} else {
e.deltas[cacheKey] = counter.GetValue()
}
e.values[cacheKey] = counter.GetValue()
} else if typ == dto.MetricType_SUMMARY {
summary := m.GetSummary()
count := summary.GetSampleCount()
sum := summary.GetSampleSum()
cacheKey := getCacheKey(name, getLabels(m.GetLabel()), "sum")
if previousVal, ok := e.values[cacheKey]; ok {
e.deltas[cacheKey] = sum - previousVal
} else {
e.deltas[cacheKey] = sum
}
e.values[cacheKey] = sum
cacheKey = getCacheKey(name, getLabels(m.GetLabel()), "count")
if previousVal, ok := e.values[cacheKey]; ok {
e.deltas[cacheKey] = float64(count) - previousVal
} else {
e.deltas[cacheKey] = float64(count)
}
e.values[cacheKey] = float64(count)
}
}
}
if e.sink != nil {
metrics, err := e.getMetrics(mfs)
if err != nil {
return
}
select {
case e.sink <- metrics:
default:
return
}
}
}
func (e *Eagle) aggregate() {
for {
select {
case <-time.After(e.interval):
e.aggregateOnce()
case <-e.closeCh:
return
}
}
}
func getLabels(pairs []*dto.LabelPair) []metricLabel {
labels := []metricLabel{}
for _, pair := range pairs {
val := pair.GetValue()
if val == "" {
continue
}
label := metricLabel{pair.GetName(), val}
labels = append(labels, label)
}
return labels
}
func flattenLabels(labels []metricLabel) []string {
l := []string{}
for _, label := range labels {
l = append(l, label.Name)
l = append(l, label.Value)
}
return l
}
func joinLabels(labels []metricLabel, sep string) string {
chunks := []string{}
for _, lbl := range labels {
chunks = append(chunks, lbl.Name)
chunks = append(chunks, lbl.Value)
}
if len(chunks) == 0 {
return ""
}
return strings.Join(chunks, sep)
}
// Lock must be held outside.
func (e *Eagle) getMetrics(mfs []*dto.MetricFamily) (Metrics, error) {
metrics := Metrics{
Items: make([]Metric, 0),
}
for _, mf := range mfs {
typ := mf.GetType()
name := mf.GetName()
parts := strings.SplitN(name, "_", 3)
var namespace, subsystem, shortName string
if len(parts) == 3 {
namespace, subsystem, shortName = parts[0], parts[1], parts[2]
} else {
namespace, subsystem = parts[0], parts[1]
}
metric := Metric{
Namespace: namespace,
Subsystem: subsystem,
Name: shortName,
Help: mf.GetHelp(),
Values: make([]MetricValue, 0),
}
for _, m := range mf.GetMetric() {
if typ == dto.MetricType_COUNTER {
metric.Type = MetricTypeCounter
counter := m.GetCounter()
labels := getLabels(m.GetLabel())
cacheKey := getCacheKey(name, labels, "")
deltaVal, ok := e.deltas[cacheKey]
if !ok {
deltaVal = counter.GetValue()
}
value := MetricValue{
Name: "",
Labels: flattenLabels(labels),
Value: deltaVal,
}
metric.Values = append(metric.Values, value)
} else if typ == dto.MetricType_GAUGE {
metric.Type = MetricTypeGauge
gauge := m.GetGauge()
labels := getLabels(m.GetLabel())
chunks := []string{}
for _, lbl := range labels {
chunks = append(chunks, lbl.Name)
chunks = append(chunks, lbl.Value)
}
value := MetricValue{
Name: "",
Labels: flattenLabels(labels),
Value: gauge.GetValue(),
}
metric.Values = append(metric.Values, value)
} else if typ == dto.MetricType_SUMMARY {
metric.Type = MetricTypeSummary
summary := m.GetSummary()
count := summary.GetSampleCount()
sum := summary.GetSampleSum()
quantiles := summary.GetQuantile()
labels := getLabels(m.GetLabel())
deltaVal, ok := e.deltas[getCacheKey(name, labels, "sum")]
if !ok {
deltaVal = sum
}
value := MetricValue{
Name: "sum",
Labels: flattenLabels(labels),
Value: deltaVal,
}
metric.Values = append(metric.Values, value)
deltaVal, ok = e.deltas[getCacheKey(name, labels, "count")]
if !ok {
deltaVal = float64(count)
}
value = MetricValue{
Name: "count",
Labels: flattenLabels(labels),
Value: deltaVal,
}
metric.Values = append(metric.Values, value)
for _, quantile := range quantiles {
value := quantile.GetValue()
if math.IsNaN(value) {
continue
}
v := MetricValue{
Name: "quantile" + e.quantileSep + quantileString(quantile.GetQuantile()),
Labels: flattenLabels(labels),
Value: quantile.GetValue(),
}
metric.Values = append(metric.Values, v)
}
} else {
continue
}
}
metrics.Items = append(metrics.Items, metric)
}
return metrics, nil
}
// Export actual Metrics once.
func (e *Eagle) Export() (Metrics, error) {
mfs, err := e.gatherer.Gather()
if err != nil {
return Metrics{}, err
}
e.mu.Lock()
defer e.mu.Unlock()
return e.getMetrics(mfs)
}
-9
View File
@@ -1,9 +0,0 @@
module github.com/FZambia/eagle
require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/prometheus/client_golang v0.9.2
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910
github.com/stretchr/testify v1.2.2
)
-22
View File
@@ -1,22 +0,0 @@
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.2 h1:awm861/B8OKDd2I/6o1dy3ra4BamzKhYOiGItCeZ740=
github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 h1:idejC8f05m9MGOsuEi1ATq9shN03HrxNkD/luQvxCv8=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275 h1:PnBWHBf+6L0jOqq0gIVUe6Yk0/QMZ640k6NvkxcBf+8=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a h1:9a8MnZMP0X2nLJdBg+pBmGgkJlSaKC2KaQmTCk1XDtE=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-24
View File
@@ -1,24 +0,0 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof
-201
View File
@@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
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by such Contributor that are necessarily infringed by their
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
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as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
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of the NOTICE file are for informational purposes only and
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the conditions stated in this License.
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any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
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the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
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has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
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Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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-39
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@@ -1,39 +0,0 @@
go-sentinel
===========
Redis Sentinel support for [redigo](https://github.com/gomodule/redigo) library.
Documentation
-------------
- [API Reference](http://godoc.org/github.com/FZambia/sentinel)
Alternative solution
--------------------
You can alternatively configure Haproxy between your application and Redis to proxy requests to Redis master instance if you only need HA:
```
listen redis
server redis-01 127.0.0.1:6380 check port 6380 check inter 2s weight 1 inter 2s downinter 5s rise 10 fall 2 on-marked-down shutdown-sessions on-marked-up shutdown-backup-sessions
server redis-02 127.0.0.1:6381 check port 6381 check inter 2s weight 1 inter 2s downinter 5s rise 10 fall 2 backup
bind *:6379
mode tcp
option tcpka
option tcplog
option tcp-check
tcp-check send PING\r\n
tcp-check expect string +PONG
tcp-check send info\ replication\r\n
tcp-check expect string role:master
tcp-check send QUIT\r\n
tcp-check expect string +OK
balance roundrobin
```
This way you don't need to use this library.
License
-------
Library is available under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html).
-421
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@@ -1,421 +0,0 @@
package sentinel
import (
"errors"
"fmt"
"net"
"strings"
"sync"
"time"
"github.com/gomodule/redigo/redis"
)
// Sentinel provides a way to add high availability (HA) to Redis Pool using
// preconfigured addresses of Sentinel servers and name of master which Sentinels
// monitor. It works with Redis >= 2.8.12 (mostly because of ROLE command that
// was introduced in that version, it's possible though to support old versions
// using INFO command).
//
// Example of the simplest usage to contact master "mymaster":
//
// func newSentinelPool() *redis.Pool {
// sntnl := &sentinel.Sentinel{
// Addrs: []string{":26379", ":26380", ":26381"},
// MasterName: "mymaster",
// Dial: func(addr string) (redis.Conn, error) {
// timeout := 500 * time.Millisecond
// c, err := redis.DialTimeout("tcp", addr, timeout, timeout, timeout)
// if err != nil {
// return nil, err
// }
// return c, nil
// },
// }
// return &redis.Pool{
// MaxIdle: 3,
// MaxActive: 64,
// Wait: true,
// IdleTimeout: 240 * time.Second,
// Dial: func() (redis.Conn, error) {
// masterAddr, err := sntnl.MasterAddr()
// if err != nil {
// return nil, err
// }
// c, err := redis.Dial("tcp", masterAddr)
// if err != nil {
// return nil, err
// }
// return c, nil
// },
// TestOnBorrow: func(c redis.Conn, t time.Time) error {
// if !sentinel.TestRole(c, "master") {
// return errors.New("Role check failed")
// } else {
// return nil
// }
// },
// }
// }
type Sentinel struct {
// Addrs is a slice with known Sentinel addresses.
Addrs []string
// MasterName is a name of Redis master Sentinel servers monitor.
MasterName string
// Dial is a user supplied function to connect to Sentinel on given address. This
// address will be chosen from Addrs slice.
// Note that as per the redis-sentinel client guidelines, a timeout is mandatory
// while connecting to Sentinels, and should not be set to 0.
Dial func(addr string) (redis.Conn, error)
// Pool is a user supplied function returning custom connection pool to Sentinel.
// This can be useful to tune options if you are not satisfied with what default
// Sentinel pool offers. See defaultPool() method for default pool implementation.
// In most cases you only need to provide Dial function and let this be nil.
Pool func(addr string) *redis.Pool
mu sync.RWMutex
pools map[string]*redis.Pool
addr string
}
// NoSentinelsAvailable is returned when all sentinels in the list are exhausted
// (or none configured), and contains the last error returned by Dial (which
// may be nil)
type NoSentinelsAvailable struct {
lastError error
}
func (ns NoSentinelsAvailable) Error() string {
if ns.lastError != nil {
return fmt.Sprintf("redigo: no sentinels available; last error: %s", ns.lastError.Error())
}
return fmt.Sprintf("redigo: no sentinels available")
}
// putToTop puts Sentinel address to the top of address list - this means
// that all next requests will use Sentinel on this address first.
//
// From Sentinel guidelines:
//
// The first Sentinel replying to the client request should be put at the
// start of the list, so that at the next reconnection, we'll try first
// the Sentinel that was reachable in the previous connection attempt,
// minimizing latency.
//
// Lock must be held by caller.
func (s *Sentinel) putToTop(addr string) {
addrs := s.Addrs
if addrs[0] == addr {
// Already on top.
return
}
newAddrs := []string{addr}
for _, a := range addrs {
if a == addr {
continue
}
newAddrs = append(newAddrs, a)
}
s.Addrs = newAddrs
}
// putToBottom puts Sentinel address to the bottom of address list.
// We call this method internally when see that some Sentinel failed to answer
// on application request so next time we start with another one.
//
// Lock must be held by caller.
func (s *Sentinel) putToBottom(addr string) {
addrs := s.Addrs
if addrs[len(addrs)-1] == addr {
// Already on bottom.
return
}
newAddrs := []string{}
for _, a := range addrs {
if a == addr {
continue
}
newAddrs = append(newAddrs, a)
}
newAddrs = append(newAddrs, addr)
s.Addrs = newAddrs
}
// defaultPool returns a connection pool to one Sentinel. This allows
// us to call concurrent requests to Sentinel using connection Do method.
func (s *Sentinel) defaultPool(addr string) *redis.Pool {
return &redis.Pool{
MaxIdle: 3,
MaxActive: 10,
Wait: true,
IdleTimeout: 240 * time.Second,
Dial: func() (redis.Conn, error) {
return s.Dial(addr)
},
TestOnBorrow: func(c redis.Conn, t time.Time) error {
_, err := c.Do("PING")
return err
},
}
}
func (s *Sentinel) get(addr string) redis.Conn {
pool := s.poolForAddr(addr)
return pool.Get()
}
func (s *Sentinel) poolForAddr(addr string) *redis.Pool {
s.mu.Lock()
if s.pools == nil {
s.pools = make(map[string]*redis.Pool)
}
pool, ok := s.pools[addr]
if ok {
s.mu.Unlock()
return pool
}
s.mu.Unlock()
newPool := s.newPool(addr)
s.mu.Lock()
p, ok := s.pools[addr]
if ok {
s.mu.Unlock()
return p
}
s.pools[addr] = newPool
s.mu.Unlock()
return newPool
}
func (s *Sentinel) newPool(addr string) *redis.Pool {
if s.Pool != nil {
return s.Pool(addr)
}
return s.defaultPool(addr)
}
// close connection pool to Sentinel.
// Lock must be hold by caller.
func (s *Sentinel) close() {
if s.pools != nil {
for _, pool := range s.pools {
pool.Close()
}
}
s.pools = nil
}
func (s *Sentinel) doUntilSuccess(f func(redis.Conn) (interface{}, error)) (interface{}, error) {
s.mu.RLock()
addrs := s.Addrs
s.mu.RUnlock()
var lastErr error
for _, addr := range addrs {
conn := s.get(addr)
reply, err := f(conn)
conn.Close()
if err != nil {
lastErr = err
s.mu.Lock()
s.putToBottom(addr)
s.mu.Unlock()
continue
}
s.putToTop(addr)
return reply, nil
}
return nil, NoSentinelsAvailable{lastError: lastErr}
}
// MasterAddr returns an address of current Redis master instance.
func (s *Sentinel) MasterAddr() (string, error) {
res, err := s.doUntilSuccess(func(c redis.Conn) (interface{}, error) {
return queryForMaster(c, s.MasterName)
})
if err != nil {
return "", err
}
return res.(string), nil
}
// SlaveAddrs returns a slice with known slave addresses of current master instance.
func (s *Sentinel) SlaveAddrs() ([]string, error) {
res, err := s.doUntilSuccess(func(c redis.Conn) (interface{}, error) {
return queryForSlaveAddrs(c, s.MasterName)
})
if err != nil {
return nil, err
}
return res.([]string), nil
}
// Slave represents a Redis slave instance which is known by Sentinel.
type Slave struct {
ip string
port string
flags string
}
// Addr returns an address of slave.
func (s *Slave) Addr() string {
return net.JoinHostPort(s.ip, s.port)
}
// Available returns if slave is in working state at moment based on information in slave flags.
func (s *Slave) Available() bool {
return !strings.Contains(s.flags, "disconnected") && !strings.Contains(s.flags, "s_down")
}
// Slaves returns a slice with known slaves of master instance.
func (s *Sentinel) Slaves() ([]*Slave, error) {
res, err := s.doUntilSuccess(func(c redis.Conn) (interface{}, error) {
return queryForSlaves(c, s.MasterName)
})
if err != nil {
return nil, err
}
return res.([]*Slave), nil
}
// SentinelAddrs returns a slice of known Sentinel addresses Sentinel server aware of.
func (s *Sentinel) SentinelAddrs() ([]string, error) {
res, err := s.doUntilSuccess(func(c redis.Conn) (interface{}, error) {
return queryForSentinels(c, s.MasterName)
})
if err != nil {
return nil, err
}
return res.([]string), nil
}
// Discover allows to update list of known Sentinel addresses. From docs:
//
// A client may update its internal list of Sentinel nodes following this procedure:
// 1) Obtain a list of other Sentinels for this master using the command SENTINEL sentinels <master-name>.
// 2) Add every ip:port pair not already existing in our list at the end of the list.
func (s *Sentinel) Discover() error {
addrs, err := s.SentinelAddrs()
if err != nil {
return err
}
s.mu.Lock()
for _, addr := range addrs {
if !stringInSlice(addr, s.Addrs) {
s.Addrs = append(s.Addrs, addr)
}
}
s.mu.Unlock()
return nil
}
// Close closes current connection to Sentinel.
func (s *Sentinel) Close() error {
s.mu.Lock()
s.close()
s.mu.Unlock()
return nil
}
// TestRole wraps GetRole in a test to verify if the role matches an expected
// role string. If there was any error in querying the supplied connection,
// the function returns false. Works with Redis >= 2.8.12.
// It's not goroutine safe, but if you call this method on pooled connections
// then you are OK.
func TestRole(c redis.Conn, expectedRole string) bool {
role, err := getRole(c)
if err != nil || role != expectedRole {
return false
}
return true
}
// getRole is a convenience function supplied to query an instance (master or
// slave) for its role. It attempts to use the ROLE command introduced in
// redis 2.8.12.
func getRole(c redis.Conn) (string, error) {
res, err := c.Do("ROLE")
if err != nil {
return "", err
}
rres, ok := res.([]interface{})
if ok {
return redis.String(rres[0], nil)
}
return "", errors.New("redigo: can not transform ROLE reply to string")
}
func queryForMaster(conn redis.Conn, masterName string) (string, error) {
res, err := redis.Strings(conn.Do("SENTINEL", "get-master-addr-by-name", masterName))
if err != nil {
return "", err
}
if len(res) < 2 {
return "", errors.New("redigo: malformed get-master-addr-by-name reply")
}
masterAddr := net.JoinHostPort(res[0], res[1])
return masterAddr, nil
}
func queryForSlaveAddrs(conn redis.Conn, masterName string) ([]string, error) {
slaves, err := queryForSlaves(conn, masterName)
if err != nil {
return nil, err
}
slaveAddrs := make([]string, 0)
for _, slave := range slaves {
slaveAddrs = append(slaveAddrs, slave.Addr())
}
return slaveAddrs, nil
}
func queryForSlaves(conn redis.Conn, masterName string) ([]*Slave, error) {
res, err := redis.Values(conn.Do("SENTINEL", "slaves", masterName))
if err != nil {
return nil, err
}
slaves := make([]*Slave, 0)
for _, a := range res {
sm, err := redis.StringMap(a, err)
if err != nil {
return slaves, err
}
slave := &Slave{
ip: sm["ip"],
port: sm["port"],
flags: sm["flags"],
}
slaves = append(slaves, slave)
}
return slaves, nil
}
func queryForSentinels(conn redis.Conn, masterName string) ([]string, error) {
res, err := redis.Values(conn.Do("SENTINEL", "sentinels", masterName))
if err != nil {
return nil, err
}
sentinels := make([]string, 0)
for _, a := range res {
sm, err := redis.StringMap(a, err)
if err != nil {
return sentinels, err
}
sentinels = append(sentinels, fmt.Sprintf("%s:%s", sm["ip"], sm["port"]))
}
return sentinels, nil
}
func stringInSlice(str string, slice []string) bool {
for _, s := range slice {
if s == str {
return true
}
}
return false
}
-5
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@@ -1,5 +0,0 @@
*.sublime-*
.DS_Store
*.swp
*.swo
tags
-12
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@@ -1,12 +0,0 @@
language: go
go:
- 1.4.x
- 1.5.x
- 1.6.x
- 1.7.x
- 1.8.x
- 1.9.x
- "1.10.x"
- "1.11.x"
- tip
-12
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@@ -1,12 +0,0 @@
Copyright (c) 2012, Martin Angers
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-188
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@@ -1,188 +0,0 @@
# Purell
Purell is a tiny Go library to normalize URLs. It returns a pure URL. Pure-ell. Sanitizer and all. Yeah, I know...
Based on the [wikipedia paper][wiki] and the [RFC 3986 document][rfc].
[![build status](https://travis-ci.org/PuerkitoBio/purell.svg?branch=master)](http://travis-ci.org/PuerkitoBio/purell)
## Install
`go get github.com/PuerkitoBio/purell`
## Changelog
* **v1.1.1** : Fix failing test due to Go1.12 changes (thanks to @ianlancetaylor).
* **2016-11-14 (v1.1.0)** : IDN: Conform to RFC 5895: Fold character width (thanks to @beeker1121).
* **2016-07-27 (v1.0.0)** : Normalize IDN to ASCII (thanks to @zenovich).
* **2015-02-08** : Add fix for relative paths issue ([PR #5][pr5]) and add fix for unnecessary encoding of reserved characters ([see issue #7][iss7]).
* **v0.2.0** : Add benchmarks, Attempt IDN support.
* **v0.1.0** : Initial release.
## Examples
From `example_test.go` (note that in your code, you would import "github.com/PuerkitoBio/purell", and would prefix references to its methods and constants with "purell."):
```go
package purell
import (
"fmt"
"net/url"
)
func ExampleNormalizeURLString() {
if normalized, err := NormalizeURLString("hTTp://someWEBsite.com:80/Amazing%3f/url/",
FlagLowercaseScheme|FlagLowercaseHost|FlagUppercaseEscapes); err != nil {
panic(err)
} else {
fmt.Print(normalized)
}
// Output: http://somewebsite.com:80/Amazing%3F/url/
}
func ExampleMustNormalizeURLString() {
normalized := MustNormalizeURLString("hTTpS://someWEBsite.com:443/Amazing%fa/url/",
FlagsUnsafeGreedy)
fmt.Print(normalized)
// Output: http://somewebsite.com/Amazing%FA/url
}
func ExampleNormalizeURL() {
if u, err := url.Parse("Http://SomeUrl.com:8080/a/b/.././c///g?c=3&a=1&b=9&c=0#target"); err != nil {
panic(err)
} else {
normalized := NormalizeURL(u, FlagsUsuallySafeGreedy|FlagRemoveDuplicateSlashes|FlagRemoveFragment)
fmt.Print(normalized)
}
// Output: http://someurl.com:8080/a/c/g?c=3&a=1&b=9&c=0
}
```
## API
As seen in the examples above, purell offers three methods, `NormalizeURLString(string, NormalizationFlags) (string, error)`, `MustNormalizeURLString(string, NormalizationFlags) (string)` and `NormalizeURL(*url.URL, NormalizationFlags) (string)`. They all normalize the provided URL based on the specified flags. Here are the available flags:
```go
const (
// Safe normalizations
FlagLowercaseScheme NormalizationFlags = 1 << iota // HTTP://host -> http://host, applied by default in Go1.1
FlagLowercaseHost // http://HOST -> http://host
FlagUppercaseEscapes // http://host/t%ef -> http://host/t%EF
FlagDecodeUnnecessaryEscapes // http://host/t%41 -> http://host/tA
FlagEncodeNecessaryEscapes // http://host/!"#$ -> http://host/%21%22#$
FlagRemoveDefaultPort // http://host:80 -> http://host
FlagRemoveEmptyQuerySeparator // http://host/path? -> http://host/path
// Usually safe normalizations
FlagRemoveTrailingSlash // http://host/path/ -> http://host/path
FlagAddTrailingSlash // http://host/path -> http://host/path/ (should choose only one of these add/remove trailing slash flags)
FlagRemoveDotSegments // http://host/path/./a/b/../c -> http://host/path/a/c
// Unsafe normalizations
FlagRemoveDirectoryIndex // http://host/path/index.html -> http://host/path/
FlagRemoveFragment // http://host/path#fragment -> http://host/path
FlagForceHTTP // https://host -> http://host
FlagRemoveDuplicateSlashes // http://host/path//a///b -> http://host/path/a/b
FlagRemoveWWW // http://www.host/ -> http://host/
FlagAddWWW // http://host/ -> http://www.host/ (should choose only one of these add/remove WWW flags)
FlagSortQuery // http://host/path?c=3&b=2&a=1&b=1 -> http://host/path?a=1&b=1&b=2&c=3
// Normalizations not in the wikipedia article, required to cover tests cases
// submitted by jehiah
FlagDecodeDWORDHost // http://1113982867 -> http://66.102.7.147
FlagDecodeOctalHost // http://0102.0146.07.0223 -> http://66.102.7.147
FlagDecodeHexHost // http://0x42660793 -> http://66.102.7.147
FlagRemoveUnnecessaryHostDots // http://.host../path -> http://host/path
FlagRemoveEmptyPortSeparator // http://host:/path -> http://host/path
// Convenience set of safe normalizations
FlagsSafe NormalizationFlags = FlagLowercaseHost | FlagLowercaseScheme | FlagUppercaseEscapes | FlagDecodeUnnecessaryEscapes | FlagEncodeNecessaryEscapes | FlagRemoveDefaultPort | FlagRemoveEmptyQuerySeparator
// For convenience sets, "greedy" uses the "remove trailing slash" and "remove www. prefix" flags,
// while "non-greedy" uses the "add (or keep) the trailing slash" and "add www. prefix".
// Convenience set of usually safe normalizations (includes FlagsSafe)
FlagsUsuallySafeGreedy NormalizationFlags = FlagsSafe | FlagRemoveTrailingSlash | FlagRemoveDotSegments
FlagsUsuallySafeNonGreedy NormalizationFlags = FlagsSafe | FlagAddTrailingSlash | FlagRemoveDotSegments
// Convenience set of unsafe normalizations (includes FlagsUsuallySafe)
FlagsUnsafeGreedy NormalizationFlags = FlagsUsuallySafeGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagRemoveWWW | FlagSortQuery
FlagsUnsafeNonGreedy NormalizationFlags = FlagsUsuallySafeNonGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagAddWWW | FlagSortQuery
// Convenience set of all available flags
FlagsAllGreedy = FlagsUnsafeGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
FlagsAllNonGreedy = FlagsUnsafeNonGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
)
```
For convenience, the set of flags `FlagsSafe`, `FlagsUsuallySafe[Greedy|NonGreedy]`, `FlagsUnsafe[Greedy|NonGreedy]` and `FlagsAll[Greedy|NonGreedy]` are provided for the similarly grouped normalizations on [wikipedia's URL normalization page][wiki]. You can add (using the bitwise OR `|` operator) or remove (using the bitwise AND NOT `&^` operator) individual flags from the sets if required, to build your own custom set.
The [full godoc reference is available on gopkgdoc][godoc].
Some things to note:
* `FlagDecodeUnnecessaryEscapes`, `FlagEncodeNecessaryEscapes`, `FlagUppercaseEscapes` and `FlagRemoveEmptyQuerySeparator` are always implicitly set, because internally, the URL string is parsed as an URL object, which automatically decodes unnecessary escapes, uppercases and encodes necessary ones, and removes empty query separators (an unnecessary `?` at the end of the url). So this operation cannot **not** be done. For this reason, `FlagRemoveEmptyQuerySeparator` (as well as the other three) has been included in the `FlagsSafe` convenience set, instead of `FlagsUnsafe`, where Wikipedia puts it.
* The `FlagDecodeUnnecessaryEscapes` decodes the following escapes (*from -> to*):
- %24 -> $
- %26 -> &
- %2B-%3B -> +,-./0123456789:;
- %3D -> =
- %40-%5A -> @ABCDEFGHIJKLMNOPQRSTUVWXYZ
- %5F -> _
- %61-%7A -> abcdefghijklmnopqrstuvwxyz
- %7E -> ~
* When the `NormalizeURL` function is used (passing an URL object), this source URL object is modified (that is, after the call, the URL object will be modified to reflect the normalization).
* The *replace IP with domain name* normalization (`http://208.77.188.166/ → http://www.example.com/`) is obviously not possible for a library without making some network requests. This is not implemented in purell.
* The *remove unused query string parameters* and *remove default query parameters* are also not implemented, since this is a very case-specific normalization, and it is quite trivial to do with an URL object.
### Safe vs Usually Safe vs Unsafe
Purell allows you to control the level of risk you take while normalizing an URL. You can aggressively normalize, play it totally safe, or anything in between.
Consider the following URL:
`HTTPS://www.RooT.com/toto/t%45%1f///a/./b/../c/?z=3&w=2&a=4&w=1#invalid`
Normalizing with the `FlagsSafe` gives:
`https://www.root.com/toto/tE%1F///a/./b/../c/?z=3&w=2&a=4&w=1#invalid`
With the `FlagsUsuallySafeGreedy`:
`https://www.root.com/toto/tE%1F///a/c?z=3&w=2&a=4&w=1#invalid`
And with `FlagsUnsafeGreedy`:
`http://root.com/toto/tE%1F/a/c?a=4&w=1&w=2&z=3`
## TODOs
* Add a class/default instance to allow specifying custom directory index names? At the moment, removing directory index removes `(^|/)((?:default|index)\.\w{1,4})$`.
## Thanks / Contributions
@rogpeppe
@jehiah
@opennota
@pchristopher1275
@zenovich
@beeker1121
## License
The [BSD 3-Clause license][bsd].
[bsd]: http://opensource.org/licenses/BSD-3-Clause
[wiki]: http://en.wikipedia.org/wiki/URL_normalization
[rfc]: http://tools.ietf.org/html/rfc3986#section-6
[godoc]: http://go.pkgdoc.org/github.com/PuerkitoBio/purell
[pr5]: https://github.com/PuerkitoBio/purell/pull/5
[iss7]: https://github.com/PuerkitoBio/purell/issues/7
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/*
Package purell offers URL normalization as described on the wikipedia page:
http://en.wikipedia.org/wiki/URL_normalization
*/
package purell
import (
"bytes"
"fmt"
"net/url"
"regexp"
"sort"
"strconv"
"strings"
"github.com/PuerkitoBio/urlesc"
"golang.org/x/net/idna"
"golang.org/x/text/unicode/norm"
"golang.org/x/text/width"
)
// A set of normalization flags determines how a URL will
// be normalized.
type NormalizationFlags uint
const (
// Safe normalizations
FlagLowercaseScheme NormalizationFlags = 1 << iota // HTTP://host -> http://host, applied by default in Go1.1
FlagLowercaseHost // http://HOST -> http://host
FlagUppercaseEscapes // http://host/t%ef -> http://host/t%EF
FlagDecodeUnnecessaryEscapes // http://host/t%41 -> http://host/tA
FlagEncodeNecessaryEscapes // http://host/!"#$ -> http://host/%21%22#$
FlagRemoveDefaultPort // http://host:80 -> http://host
FlagRemoveEmptyQuerySeparator // http://host/path? -> http://host/path
// Usually safe normalizations
FlagRemoveTrailingSlash // http://host/path/ -> http://host/path
FlagAddTrailingSlash // http://host/path -> http://host/path/ (should choose only one of these add/remove trailing slash flags)
FlagRemoveDotSegments // http://host/path/./a/b/../c -> http://host/path/a/c
// Unsafe normalizations
FlagRemoveDirectoryIndex // http://host/path/index.html -> http://host/path/
FlagRemoveFragment // http://host/path#fragment -> http://host/path
FlagForceHTTP // https://host -> http://host
FlagRemoveDuplicateSlashes // http://host/path//a///b -> http://host/path/a/b
FlagRemoveWWW // http://www.host/ -> http://host/
FlagAddWWW // http://host/ -> http://www.host/ (should choose only one of these add/remove WWW flags)
FlagSortQuery // http://host/path?c=3&b=2&a=1&b=1 -> http://host/path?a=1&b=1&b=2&c=3
// Normalizations not in the wikipedia article, required to cover tests cases
// submitted by jehiah
FlagDecodeDWORDHost // http://1113982867 -> http://66.102.7.147
FlagDecodeOctalHost // http://0102.0146.07.0223 -> http://66.102.7.147
FlagDecodeHexHost // http://0x42660793 -> http://66.102.7.147
FlagRemoveUnnecessaryHostDots // http://.host../path -> http://host/path
FlagRemoveEmptyPortSeparator // http://host:/path -> http://host/path
// Convenience set of safe normalizations
FlagsSafe NormalizationFlags = FlagLowercaseHost | FlagLowercaseScheme | FlagUppercaseEscapes | FlagDecodeUnnecessaryEscapes | FlagEncodeNecessaryEscapes | FlagRemoveDefaultPort | FlagRemoveEmptyQuerySeparator
// For convenience sets, "greedy" uses the "remove trailing slash" and "remove www. prefix" flags,
// while "non-greedy" uses the "add (or keep) the trailing slash" and "add www. prefix".
// Convenience set of usually safe normalizations (includes FlagsSafe)
FlagsUsuallySafeGreedy NormalizationFlags = FlagsSafe | FlagRemoveTrailingSlash | FlagRemoveDotSegments
FlagsUsuallySafeNonGreedy NormalizationFlags = FlagsSafe | FlagAddTrailingSlash | FlagRemoveDotSegments
// Convenience set of unsafe normalizations (includes FlagsUsuallySafe)
FlagsUnsafeGreedy NormalizationFlags = FlagsUsuallySafeGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagRemoveWWW | FlagSortQuery
FlagsUnsafeNonGreedy NormalizationFlags = FlagsUsuallySafeNonGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagAddWWW | FlagSortQuery
// Convenience set of all available flags
FlagsAllGreedy = FlagsUnsafeGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
FlagsAllNonGreedy = FlagsUnsafeNonGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
)
const (
defaultHttpPort = ":80"
defaultHttpsPort = ":443"
)
// Regular expressions used by the normalizations
var rxPort = regexp.MustCompile(`(:\d+)/?$`)
var rxDirIndex = regexp.MustCompile(`(^|/)((?:default|index)\.\w{1,4})$`)
var rxDupSlashes = regexp.MustCompile(`/{2,}`)
var rxDWORDHost = regexp.MustCompile(`^(\d+)((?:\.+)?(?:\:\d*)?)$`)
var rxOctalHost = regexp.MustCompile(`^(0\d*)\.(0\d*)\.(0\d*)\.(0\d*)((?:\.+)?(?:\:\d*)?)$`)
var rxHexHost = regexp.MustCompile(`^0x([0-9A-Fa-f]+)((?:\.+)?(?:\:\d*)?)$`)
var rxHostDots = regexp.MustCompile(`^(.+?)(:\d+)?$`)
var rxEmptyPort = regexp.MustCompile(`:+$`)
// Map of flags to implementation function.
// FlagDecodeUnnecessaryEscapes has no action, since it is done automatically
// by parsing the string as an URL. Same for FlagUppercaseEscapes and FlagRemoveEmptyQuerySeparator.
// Since maps have undefined traversing order, make a slice of ordered keys
var flagsOrder = []NormalizationFlags{
FlagLowercaseScheme,
FlagLowercaseHost,
FlagRemoveDefaultPort,
FlagRemoveDirectoryIndex,
FlagRemoveDotSegments,
FlagRemoveFragment,
FlagForceHTTP, // Must be after remove default port (because https=443/http=80)
FlagRemoveDuplicateSlashes,
FlagRemoveWWW,
FlagAddWWW,
FlagSortQuery,
FlagDecodeDWORDHost,
FlagDecodeOctalHost,
FlagDecodeHexHost,
FlagRemoveUnnecessaryHostDots,
FlagRemoveEmptyPortSeparator,
FlagRemoveTrailingSlash, // These two (add/remove trailing slash) must be last
FlagAddTrailingSlash,
}
// ... and then the map, where order is unimportant
var flags = map[NormalizationFlags]func(*url.URL){
FlagLowercaseScheme: lowercaseScheme,
FlagLowercaseHost: lowercaseHost,
FlagRemoveDefaultPort: removeDefaultPort,
FlagRemoveDirectoryIndex: removeDirectoryIndex,
FlagRemoveDotSegments: removeDotSegments,
FlagRemoveFragment: removeFragment,
FlagForceHTTP: forceHTTP,
FlagRemoveDuplicateSlashes: removeDuplicateSlashes,
FlagRemoveWWW: removeWWW,
FlagAddWWW: addWWW,
FlagSortQuery: sortQuery,
FlagDecodeDWORDHost: decodeDWORDHost,
FlagDecodeOctalHost: decodeOctalHost,
FlagDecodeHexHost: decodeHexHost,
FlagRemoveUnnecessaryHostDots: removeUnncessaryHostDots,
FlagRemoveEmptyPortSeparator: removeEmptyPortSeparator,
FlagRemoveTrailingSlash: removeTrailingSlash,
FlagAddTrailingSlash: addTrailingSlash,
}
// MustNormalizeURLString returns the normalized string, and panics if an error occurs.
// It takes an URL string as input, as well as the normalization flags.
func MustNormalizeURLString(u string, f NormalizationFlags) string {
result, e := NormalizeURLString(u, f)
if e != nil {
panic(e)
}
return result
}
// NormalizeURLString returns the normalized string, or an error if it can't be parsed into an URL object.
// It takes an URL string as input, as well as the normalization flags.
func NormalizeURLString(u string, f NormalizationFlags) (string, error) {
parsed, err := url.Parse(u)
if err != nil {
return "", err
}
if f&FlagLowercaseHost == FlagLowercaseHost {
parsed.Host = strings.ToLower(parsed.Host)
}
// The idna package doesn't fully conform to RFC 5895
// (https://tools.ietf.org/html/rfc5895), so we do it here.
// Taken from Go 1.8 cycle source, courtesy of bradfitz.
// TODO: Remove when (if?) idna package conforms to RFC 5895.
parsed.Host = width.Fold.String(parsed.Host)
parsed.Host = norm.NFC.String(parsed.Host)
if parsed.Host, err = idna.ToASCII(parsed.Host); err != nil {
return "", err
}
return NormalizeURL(parsed, f), nil
}
// NormalizeURL returns the normalized string.
// It takes a parsed URL object as input, as well as the normalization flags.
func NormalizeURL(u *url.URL, f NormalizationFlags) string {
for _, k := range flagsOrder {
if f&k == k {
flags[k](u)
}
}
return urlesc.Escape(u)
}
func lowercaseScheme(u *url.URL) {
if len(u.Scheme) > 0 {
u.Scheme = strings.ToLower(u.Scheme)
}
}
func lowercaseHost(u *url.URL) {
if len(u.Host) > 0 {
u.Host = strings.ToLower(u.Host)
}
}
func removeDefaultPort(u *url.URL) {
if len(u.Host) > 0 {
scheme := strings.ToLower(u.Scheme)
u.Host = rxPort.ReplaceAllStringFunc(u.Host, func(val string) string {
if (scheme == "http" && val == defaultHttpPort) || (scheme == "https" && val == defaultHttpsPort) {
return ""
}
return val
})
}
}
func removeTrailingSlash(u *url.URL) {
if l := len(u.Path); l > 0 {
if strings.HasSuffix(u.Path, "/") {
u.Path = u.Path[:l-1]
}
} else if l = len(u.Host); l > 0 {
if strings.HasSuffix(u.Host, "/") {
u.Host = u.Host[:l-1]
}
}
}
func addTrailingSlash(u *url.URL) {
if l := len(u.Path); l > 0 {
if !strings.HasSuffix(u.Path, "/") {
u.Path += "/"
}
} else if l = len(u.Host); l > 0 {
if !strings.HasSuffix(u.Host, "/") {
u.Host += "/"
}
}
}
func removeDotSegments(u *url.URL) {
if len(u.Path) > 0 {
var dotFree []string
var lastIsDot bool
sections := strings.Split(u.Path, "/")
for _, s := range sections {
if s == ".." {
if len(dotFree) > 0 {
dotFree = dotFree[:len(dotFree)-1]
}
} else if s != "." {
dotFree = append(dotFree, s)
}
lastIsDot = (s == "." || s == "..")
}
// Special case if host does not end with / and new path does not begin with /
u.Path = strings.Join(dotFree, "/")
if u.Host != "" && !strings.HasSuffix(u.Host, "/") && !strings.HasPrefix(u.Path, "/") {
u.Path = "/" + u.Path
}
// Special case if the last segment was a dot, make sure the path ends with a slash
if lastIsDot && !strings.HasSuffix(u.Path, "/") {
u.Path += "/"
}
}
}
func removeDirectoryIndex(u *url.URL) {
if len(u.Path) > 0 {
u.Path = rxDirIndex.ReplaceAllString(u.Path, "$1")
}
}
func removeFragment(u *url.URL) {
u.Fragment = ""
}
func forceHTTP(u *url.URL) {
if strings.ToLower(u.Scheme) == "https" {
u.Scheme = "http"
}
}
func removeDuplicateSlashes(u *url.URL) {
if len(u.Path) > 0 {
u.Path = rxDupSlashes.ReplaceAllString(u.Path, "/")
}
}
func removeWWW(u *url.URL) {
if len(u.Host) > 0 && strings.HasPrefix(strings.ToLower(u.Host), "www.") {
u.Host = u.Host[4:]
}
}
func addWWW(u *url.URL) {
if len(u.Host) > 0 && !strings.HasPrefix(strings.ToLower(u.Host), "www.") {
u.Host = "www." + u.Host
}
}
func sortQuery(u *url.URL) {
q := u.Query()
if len(q) > 0 {
arKeys := make([]string, len(q))
i := 0
for k := range q {
arKeys[i] = k
i++
}
sort.Strings(arKeys)
buf := new(bytes.Buffer)
for _, k := range arKeys {
sort.Strings(q[k])
for _, v := range q[k] {
if buf.Len() > 0 {
buf.WriteRune('&')
}
buf.WriteString(fmt.Sprintf("%s=%s", k, urlesc.QueryEscape(v)))
}
}
// Rebuild the raw query string
u.RawQuery = buf.String()
}
}
func decodeDWORDHost(u *url.URL) {
if len(u.Host) > 0 {
if matches := rxDWORDHost.FindStringSubmatch(u.Host); len(matches) > 2 {
var parts [4]int64
dword, _ := strconv.ParseInt(matches[1], 10, 0)
for i, shift := range []uint{24, 16, 8, 0} {
parts[i] = dword >> shift & 0xFF
}
u.Host = fmt.Sprintf("%d.%d.%d.%d%s", parts[0], parts[1], parts[2], parts[3], matches[2])
}
}
}
func decodeOctalHost(u *url.URL) {
if len(u.Host) > 0 {
if matches := rxOctalHost.FindStringSubmatch(u.Host); len(matches) > 5 {
var parts [4]int64
for i := 1; i <= 4; i++ {
parts[i-1], _ = strconv.ParseInt(matches[i], 8, 0)
}
u.Host = fmt.Sprintf("%d.%d.%d.%d%s", parts[0], parts[1], parts[2], parts[3], matches[5])
}
}
}
func decodeHexHost(u *url.URL) {
if len(u.Host) > 0 {
if matches := rxHexHost.FindStringSubmatch(u.Host); len(matches) > 2 {
// Conversion is safe because of regex validation
parsed, _ := strconv.ParseInt(matches[1], 16, 0)
// Set host as DWORD (base 10) encoded host
u.Host = fmt.Sprintf("%d%s", parsed, matches[2])
// The rest is the same as decoding a DWORD host
decodeDWORDHost(u)
}
}
}
func removeUnncessaryHostDots(u *url.URL) {
if len(u.Host) > 0 {
if matches := rxHostDots.FindStringSubmatch(u.Host); len(matches) > 1 {
// Trim the leading and trailing dots
u.Host = strings.Trim(matches[1], ".")
if len(matches) > 2 {
u.Host += matches[2]
}
}
}
}
func removeEmptyPortSeparator(u *url.URL) {
if len(u.Host) > 0 {
u.Host = rxEmptyPort.ReplaceAllString(u.Host, "")
}
}
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language: go
go:
- 1.4.x
- 1.5.x
- 1.6.x
- 1.7.x
- 1.8.x
- tip
install:
- go build .
script:
- go test -v
-27
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@@ -1,27 +0,0 @@
Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-16
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urlesc [![Build Status](https://travis-ci.org/PuerkitoBio/urlesc.svg?branch=master)](https://travis-ci.org/PuerkitoBio/urlesc) [![GoDoc](http://godoc.org/github.com/PuerkitoBio/urlesc?status.svg)](http://godoc.org/github.com/PuerkitoBio/urlesc)
======
Package urlesc implements query escaping as per RFC 3986.
It contains some parts of the net/url package, modified so as to allow
some reserved characters incorrectly escaped by net/url (see [issue 5684](https://github.com/golang/go/issues/5684)).
## Install
go get github.com/PuerkitoBio/urlesc
## License
Go license (BSD-3-Clause)
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package urlesc implements query escaping as per RFC 3986.
// It contains some parts of the net/url package, modified so as to allow
// some reserved characters incorrectly escaped by net/url.
// See https://github.com/golang/go/issues/5684
package urlesc
import (
"bytes"
"net/url"
"strings"
)
type encoding int
const (
encodePath encoding = 1 + iota
encodeUserPassword
encodeQueryComponent
encodeFragment
)
// Return true if the specified character should be escaped when
// appearing in a URL string, according to RFC 3986.
func shouldEscape(c byte, mode encoding) bool {
// §2.3 Unreserved characters (alphanum)
if 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' {
return false
}
switch c {
case '-', '.', '_', '~': // §2.3 Unreserved characters (mark)
return false
// §2.2 Reserved characters (reserved)
case ':', '/', '?', '#', '[', ']', '@', // gen-delims
'!', '$', '&', '\'', '(', ')', '*', '+', ',', ';', '=': // sub-delims
// Different sections of the URL allow a few of
// the reserved characters to appear unescaped.
switch mode {
case encodePath: // §3.3
// The RFC allows sub-delims and : @.
// '/', '[' and ']' can be used to assign meaning to individual path
// segments. This package only manipulates the path as a whole,
// so we allow those as well. That leaves only ? and # to escape.
return c == '?' || c == '#'
case encodeUserPassword: // §3.2.1
// The RFC allows : and sub-delims in
// userinfo. The parsing of userinfo treats ':' as special so we must escape
// all the gen-delims.
return c == ':' || c == '/' || c == '?' || c == '#' || c == '[' || c == ']' || c == '@'
case encodeQueryComponent: // §3.4
// The RFC allows / and ?.
return c != '/' && c != '?'
case encodeFragment: // §4.1
// The RFC text is silent but the grammar allows
// everything, so escape nothing but #
return c == '#'
}
}
// Everything else must be escaped.
return true
}
// QueryEscape escapes the string so it can be safely placed
// inside a URL query.
func QueryEscape(s string) string {
return escape(s, encodeQueryComponent)
}
func escape(s string, mode encoding) string {
spaceCount, hexCount := 0, 0
for i := 0; i < len(s); i++ {
c := s[i]
if shouldEscape(c, mode) {
if c == ' ' && mode == encodeQueryComponent {
spaceCount++
} else {
hexCount++
}
}
}
if spaceCount == 0 && hexCount == 0 {
return s
}
t := make([]byte, len(s)+2*hexCount)
j := 0
for i := 0; i < len(s); i++ {
switch c := s[i]; {
case c == ' ' && mode == encodeQueryComponent:
t[j] = '+'
j++
case shouldEscape(c, mode):
t[j] = '%'
t[j+1] = "0123456789ABCDEF"[c>>4]
t[j+2] = "0123456789ABCDEF"[c&15]
j += 3
default:
t[j] = s[i]
j++
}
}
return string(t)
}
var uiReplacer = strings.NewReplacer(
"%21", "!",
"%27", "'",
"%28", "(",
"%29", ")",
"%2A", "*",
)
// unescapeUserinfo unescapes some characters that need not to be escaped as per RFC3986.
func unescapeUserinfo(s string) string {
return uiReplacer.Replace(s)
}
// Escape reassembles the URL into a valid URL string.
// The general form of the result is one of:
//
// scheme:opaque
// scheme://userinfo@host/path?query#fragment
//
// If u.Opaque is non-empty, String uses the first form;
// otherwise it uses the second form.
//
// In the second form, the following rules apply:
// - if u.Scheme is empty, scheme: is omitted.
// - if u.User is nil, userinfo@ is omitted.
// - if u.Host is empty, host/ is omitted.
// - if u.Scheme and u.Host are empty and u.User is nil,
// the entire scheme://userinfo@host/ is omitted.
// - if u.Host is non-empty and u.Path begins with a /,
// the form host/path does not add its own /.
// - if u.RawQuery is empty, ?query is omitted.
// - if u.Fragment is empty, #fragment is omitted.
func Escape(u *url.URL) string {
var buf bytes.Buffer
if u.Scheme != "" {
buf.WriteString(u.Scheme)
buf.WriteByte(':')
}
if u.Opaque != "" {
buf.WriteString(u.Opaque)
} else {
if u.Scheme != "" || u.Host != "" || u.User != nil {
buf.WriteString("//")
if ui := u.User; ui != nil {
buf.WriteString(unescapeUserinfo(ui.String()))
buf.WriteByte('@')
}
if h := u.Host; h != "" {
buf.WriteString(h)
}
}
if u.Path != "" && u.Path[0] != '/' && u.Host != "" {
buf.WriteByte('/')
}
buf.WriteString(escape(u.Path, encodePath))
}
if u.RawQuery != "" {
buf.WriteByte('?')
buf.WriteString(u.RawQuery)
}
if u.Fragment != "" {
buf.WriteByte('#')
buf.WriteString(escape(u.Fragment, encodeFragment))
}
return buf.String()
}
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@@ -1,21 +0,0 @@
MIT License
Copyright (c) 2017 VividCortex
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
-18
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@@ -1,18 +0,0 @@
mysqlerr
========
MySQL Server Error Constants
Covers up to MySQL 5.7.13. Notice that some constants were renamed in later
versions of MySQL, because they became obsolete. (In case you wonder: the names
here match the symbols MySQL uses in source code.) Obsolete names haven't been
changed in this package to avoid breaking code, but you should no longer be
using them in applications. Here's the full list of changes since this package's
first version:
| Code | This package | MySQL (as of 5.7.8) |
| ---: | ------------ | ------------------- |
| 1150 | ER_DELAYED_CANT_CHANGE_LOCK | ER_UNUSED1 |
| 1151 | ER_TOO_MANY_DELAYED_THREADS | ER_UNUSED2 |
| 1165 | ER_DELAYED_INSERT_TABLE_LOCKED | ER_UNUSED3 |
| 1349 | ER_VIEW_SELECT_DERIVED | ER_VIEW_SELECT_DERIVED_UNUSED |
File diff suppressed because it is too large Load Diff
-21
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
root = true
[*.tmpl]
indent_style = tab
indent_size = 4
-35
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@@ -1,35 +0,0 @@
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
### Go template
# Binaries for programs and plugins
*.exe
*.dll
*.so
*.dylib
*.o
# Test binary, build with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
.glide/
bin/
vendor/
-44
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@@ -1,44 +0,0 @@
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
digest = "1:56c130d885a4aacae1dd9c7b71cfe39912c7ebc1ff7d2b46083c8812996dc43b"
name = "github.com/davecgh/go-spew"
packages = ["spew"]
pruneopts = ""
revision = "346938d642f2ec3594ed81d874461961cd0faa76"
version = "v1.1.0"
[[projects]]
digest = "1:1d7e1867c49a6dd9856598ef7c3123604ea3daabf5b83f303ff457bcbc410b1d"
name = "github.com/pkg/errors"
packages = ["."]
pruneopts = ""
revision = "ba968bfe8b2f7e042a574c888954fccecfa385b4"
version = "v0.8.1"
[[projects]]
digest = "1:256484dbbcd271f9ecebc6795b2df8cad4c458dd0f5fd82a8c2fa0c29f233411"
name = "github.com/pmezard/go-difflib"
packages = ["difflib"]
pruneopts = ""
revision = "792786c7400a136282c1664665ae0a8db921c6c2"
version = "v1.0.0"
[[projects]]
digest = "1:2d0dc026c4aef5e2f3a0e06a4dabe268b840d8f63190cf6894e02134a03f52c5"
name = "github.com/stretchr/testify"
packages = ["assert"]
pruneopts = ""
revision = "b91bfb9ebec76498946beb6af7c0230c7cc7ba6c"
version = "v1.2.0"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
input-imports = [
"github.com/pkg/errors",
"github.com/stretchr/testify/assert",
]
solver-name = "gps-cdcl"
solver-version = 1
-23
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@@ -1,23 +0,0 @@
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
[[constraint]]
name = "github.com/stretchr/testify"
version = "1.2.0"
[[constraint]]
name = "github.com/pkg/errors"
version = "0.8.1"
File diff suppressed because it is too large Load Diff
-54
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@@ -1,54 +0,0 @@
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
GO_BUILD=go build
GO_GEN=go generate
GO_TEST?=go test
GOPATH=$(realpath ../../../../../..)
GO_SOURCES := $(shell find . -path ./_lib -prune -o -name '*.go' -not -name '*_test.go')
ALL_SOURCES := $(shell find . -path ./_lib -prune -o -name '*.go' -name '*.s' -not -name '*_test.go')
SOURCES_NO_VENDOR := $(shell find . -path ./vendor -prune -o -name "*.go" -not -name '*_test.go' -print)
.PHONEY: test bench assembly generate
assembly:
@$(MAKE) -C memory assembly
@$(MAKE) -C math assembly
generate: bin/tmpl
bin/tmpl -i -data=numeric.tmpldata type_traits_numeric.gen.go.tmpl type_traits_numeric.gen_test.go.tmpl array/numeric.gen.go.tmpl array/numericbuilder.gen_test.go.tmpl array/numericbuilder.gen.go.tmpl array/bufferbuilder_numeric.gen.go.tmpl
bin/tmpl -i -data=datatype_numeric.gen.go.tmpldata datatype_numeric.gen.go.tmpl
@$(MAKE) -C math generate
fmt: $(SOURCES_NO_VENDOR)
goimports -w $^
bench: $(GO_SOURCES) | assembly
$(GO_TEST) $(GO_TEST_ARGS) -bench=. -run=- ./...
bench-noasm: $(GO_SOURCES)
$(GO_TEST) $(GO_TEST_ARGS) -tags='noasm' -bench=. -run=- ./...
test: $(GO_SOURCES) | assembly
$(GO_TEST) $(GO_TEST_ARGS) ./...
test-noasm: $(GO_SOURCES)
$(GO_TEST) $(GO_TEST_ARGS) -tags='noasm' ./...
bin/tmpl: _tools/tmpl/main.go
$(GO_BUILD) -o $@ ./_tools/tmpl
-208
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@@ -1,208 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array // import "github.com/apache/arrow/go/arrow/array"
import (
"sync/atomic"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/internal/debug"
)
// A type which satisfies array.Interface represents an immutable sequence of values.
type Interface interface {
// DataType returns the type metadata for this instance.
DataType() arrow.DataType
// NullN returns the number of null values in the array.
NullN() int
// NullBitmapBytes returns a byte slice of the validity bitmap.
NullBitmapBytes() []byte
// IsNull returns true if value at index is null.
// NOTE: IsNull will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
IsNull(i int) bool
// IsValid returns true if value at index is not null.
// NOTE: IsValid will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
IsValid(i int) bool
Data() *Data
// Len returns the number of elements in the array.
Len() int
// Retain increases the reference count by 1.
// Retain may be called simultaneously from multiple goroutines.
Retain()
// Release decreases the reference count by 1.
// Release may be called simultaneously from multiple goroutines.
// When the reference count goes to zero, the memory is freed.
Release()
}
const (
// UnknownNullCount specifies the NullN should be calculated from the null bitmap buffer.
UnknownNullCount = -1
)
type array struct {
refCount int64
data *Data
nullBitmapBytes []byte
}
// Retain increases the reference count by 1.
// Retain may be called simultaneously from multiple goroutines.
func (a *array) Retain() {
atomic.AddInt64(&a.refCount, 1)
}
// Release decreases the reference count by 1.
// Release may be called simultaneously from multiple goroutines.
// When the reference count goes to zero, the memory is freed.
func (a *array) Release() {
debug.Assert(atomic.LoadInt64(&a.refCount) > 0, "too many releases")
if atomic.AddInt64(&a.refCount, -1) == 0 {
a.data.Release()
a.data, a.nullBitmapBytes = nil, nil
}
}
// DataType returns the type metadata for this instance.
func (a *array) DataType() arrow.DataType { return a.data.dtype }
// NullN returns the number of null values in the array.
func (a *array) NullN() int {
if a.data.nulls < 0 {
a.data.nulls = a.data.length - bitutil.CountSetBits(a.nullBitmapBytes, a.data.offset, a.data.length)
}
return a.data.nulls
}
// NullBitmapBytes returns a byte slice of the validity bitmap.
func (a *array) NullBitmapBytes() []byte { return a.nullBitmapBytes }
func (a *array) Data() *Data { return a.data }
// Len returns the number of elements in the array.
func (a *array) Len() int { return a.data.length }
// IsNull returns true if value at index is null.
// NOTE: IsNull will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
func (a *array) IsNull(i int) bool {
return len(a.nullBitmapBytes) != 0 && bitutil.BitIsNotSet(a.nullBitmapBytes, a.data.offset+i)
}
// IsValid returns true if value at index is not null.
// NOTE: IsValid will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
func (a *array) IsValid(i int) bool {
return len(a.nullBitmapBytes) == 0 || bitutil.BitIsSet(a.nullBitmapBytes, a.data.offset+i)
}
func (a *array) setData(data *Data) {
// Retain before releasing in case a.data is the same as data.
data.Retain()
if a.data != nil {
a.data.Release()
}
if len(data.buffers) > 0 && data.buffers[0] != nil {
a.nullBitmapBytes = data.buffers[0].Bytes()
}
a.data = data
}
func (a *array) Offset() int {
return a.data.Offset()
}
type arrayConstructorFn func(*Data) Interface
var (
makeArrayFn [32]arrayConstructorFn
)
func unsupportedArrayType(data *Data) Interface {
panic("unsupported data type: " + data.dtype.ID().String())
}
func invalidDataType(data *Data) Interface {
panic("invalid data type: " + data.dtype.ID().String())
}
// MakeFromData constructs a strongly-typed array instance from generic Data.
func MakeFromData(data *Data) Interface {
return makeArrayFn[byte(data.dtype.ID()&0x1f)](data)
}
// NewSlice constructs a zero-copy slice of the array with the indicated
// indices i and j, corresponding to array[i:j].
// The returned array must be Release()'d after use.
//
// NewSlice panics if the slice is outside the valid range of the input array.
// NewSlice panics if j < i.
func NewSlice(arr Interface, i, j int64) Interface {
data := NewSliceData(arr.Data(), i, j)
slice := MakeFromData(data)
data.Release()
return slice
}
func init() {
makeArrayFn = [...]arrayConstructorFn{
arrow.NULL: func(data *Data) Interface { return NewNullData(data) },
arrow.BOOL: func(data *Data) Interface { return NewBooleanData(data) },
arrow.UINT8: func(data *Data) Interface { return NewUint8Data(data) },
arrow.INT8: func(data *Data) Interface { return NewInt8Data(data) },
arrow.UINT16: func(data *Data) Interface { return NewUint16Data(data) },
arrow.INT16: func(data *Data) Interface { return NewInt16Data(data) },
arrow.UINT32: func(data *Data) Interface { return NewUint32Data(data) },
arrow.INT32: func(data *Data) Interface { return NewInt32Data(data) },
arrow.UINT64: func(data *Data) Interface { return NewUint64Data(data) },
arrow.INT64: func(data *Data) Interface { return NewInt64Data(data) },
arrow.FLOAT16: func(data *Data) Interface { return NewFloat16Data(data) },
arrow.FLOAT32: func(data *Data) Interface { return NewFloat32Data(data) },
arrow.FLOAT64: func(data *Data) Interface { return NewFloat64Data(data) },
arrow.STRING: func(data *Data) Interface { return NewStringData(data) },
arrow.BINARY: func(data *Data) Interface { return NewBinaryData(data) },
arrow.FIXED_SIZE_BINARY: func(data *Data) Interface { return NewFixedSizeBinaryData(data) },
arrow.DATE32: func(data *Data) Interface { return NewDate32Data(data) },
arrow.DATE64: func(data *Data) Interface { return NewDate64Data(data) },
arrow.TIMESTAMP: func(data *Data) Interface { return NewTimestampData(data) },
arrow.TIME32: func(data *Data) Interface { return NewTime32Data(data) },
arrow.TIME64: func(data *Data) Interface { return NewTime64Data(data) },
arrow.INTERVAL: func(data *Data) Interface { return NewIntervalData(data) },
arrow.DECIMAL: func(data *Data) Interface { return NewDecimal128Data(data) },
arrow.LIST: func(data *Data) Interface { return NewListData(data) },
arrow.STRUCT: func(data *Data) Interface { return NewStructData(data) },
arrow.UNION: unsupportedArrayType,
arrow.DICTIONARY: unsupportedArrayType,
arrow.MAP: unsupportedArrayType,
arrow.EXTENSION: unsupportedArrayType,
arrow.FIXED_SIZE_LIST: func(data *Data) Interface { return NewFixedSizeListData(data) },
arrow.DURATION: func(data *Data) Interface { return NewDurationData(data) },
// invalid data types to fill out array size 2⁵-1
31: invalidDataType,
}
}
-134
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@@ -1,134 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"bytes"
"fmt"
"strings"
"unsafe"
"github.com/apache/arrow/go/arrow"
)
// A type which represents an immutable sequence of variable-length binary strings.
type Binary struct {
array
valueOffsets []int32
valueBytes []byte
}
// NewBinaryData constructs a new Binary array from data.
func NewBinaryData(data *Data) *Binary {
a := &Binary{}
a.refCount = 1
a.setData(data)
return a
}
// Value returns the slice at index i. This value should not be mutated.
func (a *Binary) Value(i int) []byte {
if i < 0 || i >= a.array.data.length {
panic("arrow/array: index out of range")
}
idx := a.array.data.offset + i
return a.valueBytes[a.valueOffsets[idx]:a.valueOffsets[idx+1]]
}
// ValueString returns the string at index i without performing additional allocations.
// The string is only valid for the lifetime of the Binary array.
func (a *Binary) ValueString(i int) string {
b := a.Value(i)
return *(*string)(unsafe.Pointer(&b))
}
func (a *Binary) ValueOffset(i int) int {
if i < 0 || i >= a.array.data.length {
panic("arrow/array: index out of range")
}
return int(a.valueOffsets[a.array.data.offset+i])
}
func (a *Binary) ValueLen(i int) int {
if i < 0 || i >= a.array.data.length {
panic("arrow/array: index out of range")
}
beg := a.array.data.offset + i
return int(a.valueOffsets[beg+1] - a.valueOffsets[beg])
}
func (a *Binary) ValueOffsets() []int32 {
beg := a.array.data.offset
end := beg + a.array.data.length + 1
return a.valueOffsets[beg:end]
}
func (a *Binary) ValueBytes() []byte {
beg := a.array.data.offset
end := beg + a.array.data.length
return a.valueBytes[a.valueOffsets[beg]:a.valueOffsets[end]]
}
func (a *Binary) String() string {
o := new(strings.Builder)
o.WriteString("[")
for i := 0; i < a.Len(); i++ {
if i > 0 {
o.WriteString(" ")
}
switch {
case a.IsNull(i):
o.WriteString("(null)")
default:
fmt.Fprintf(o, "%q", a.ValueString(i))
}
}
o.WriteString("]")
return o.String()
}
func (a *Binary) setData(data *Data) {
if len(data.buffers) != 3 {
panic("len(data.buffers) != 3")
}
a.array.setData(data)
if valueData := data.buffers[2]; valueData != nil {
a.valueBytes = valueData.Bytes()
}
if valueOffsets := data.buffers[1]; valueOffsets != nil {
a.valueOffsets = arrow.Int32Traits.CastFromBytes(valueOffsets.Bytes())
}
}
func arrayEqualBinary(left, right *Binary) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
if bytes.Compare(left.Value(i), right.Value(i)) != 0 {
return false
}
}
return true
}
var (
_ Interface = (*Binary)(nil)
)
-217
View File
@@ -1,217 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"math"
"sync/atomic"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/internal/debug"
"github.com/apache/arrow/go/arrow/memory"
)
const (
binaryArrayMaximumCapacity = math.MaxInt32
)
// A BinaryBuilder is used to build a Binary array using the Append methods.
type BinaryBuilder struct {
builder
dtype arrow.BinaryDataType
offsets *int32BufferBuilder
values *byteBufferBuilder
}
func NewBinaryBuilder(mem memory.Allocator, dtype arrow.BinaryDataType) *BinaryBuilder {
b := &BinaryBuilder{
builder: builder{refCount: 1, mem: mem},
dtype: dtype,
offsets: newInt32BufferBuilder(mem),
values: newByteBufferBuilder(mem),
}
return b
}
// Release decreases the reference count by 1.
// When the reference count goes to zero, the memory is freed.
// Release may be called simultaneously from multiple goroutines.
func (b *BinaryBuilder) Release() {
debug.Assert(atomic.LoadInt64(&b.refCount) > 0, "too many releases")
if atomic.AddInt64(&b.refCount, -1) == 0 {
if b.nullBitmap != nil {
b.nullBitmap.Release()
b.nullBitmap = nil
}
if b.offsets != nil {
b.offsets.Release()
b.offsets = nil
}
if b.values != nil {
b.values.Release()
b.values = nil
}
}
}
func (b *BinaryBuilder) Append(v []byte) {
b.Reserve(1)
b.appendNextOffset()
b.values.Append(v)
b.UnsafeAppendBoolToBitmap(true)
}
func (b *BinaryBuilder) AppendString(v string) {
b.Append([]byte(v))
}
func (b *BinaryBuilder) AppendNull() {
b.Reserve(1)
b.appendNextOffset()
b.UnsafeAppendBoolToBitmap(false)
}
// AppendValues will append the values in the v slice. The valid slice determines which values
// in v are valid (not null). The valid slice must either be empty or be equal in length to v. If empty,
// all values in v are appended and considered valid.
func (b *BinaryBuilder) AppendValues(v [][]byte, valid []bool) {
if len(v) != len(valid) && len(valid) != 0 {
panic("len(v) != len(valid) && len(valid) != 0")
}
if len(v) == 0 {
return
}
b.Reserve(len(v))
for _, vv := range v {
b.appendNextOffset()
b.values.Append(vv)
}
b.builder.unsafeAppendBoolsToBitmap(valid, len(v))
}
// AppendStringValues will append the values in the v slice. The valid slice determines which values
// in v are valid (not null). The valid slice must either be empty or be equal in length to v. If empty,
// all values in v are appended and considered valid.
func (b *BinaryBuilder) AppendStringValues(v []string, valid []bool) {
if len(v) != len(valid) && len(valid) != 0 {
panic("len(v) != len(valid) && len(valid) != 0")
}
if len(v) == 0 {
return
}
b.Reserve(len(v))
for _, vv := range v {
b.appendNextOffset()
b.values.Append([]byte(vv))
}
b.builder.unsafeAppendBoolsToBitmap(valid, len(v))
}
func (b *BinaryBuilder) Value(i int) []byte {
offsets := b.offsets.Values()
start := int(offsets[i])
var end int
if i == (b.length - 1) {
end = b.values.Len()
} else {
end = int(offsets[i+1])
}
return b.values.Bytes()[start:end]
}
func (b *BinaryBuilder) init(capacity int) {
b.builder.init(capacity)
b.offsets.resize((capacity + 1) * arrow.Int32SizeBytes)
}
// DataLen returns the number of bytes in the data array.
func (b *BinaryBuilder) DataLen() int { return b.values.length }
// DataCap returns the total number of bytes that can be stored
// without allocating additional memory.
func (b *BinaryBuilder) DataCap() int { return b.values.capacity }
// Reserve ensures there is enough space for appending n elements
// by checking the capacity and calling Resize if necessary.
func (b *BinaryBuilder) Reserve(n int) {
b.builder.reserve(n, b.Resize)
}
// ReserveData ensures there is enough space for appending n bytes
// by checking the capacity and resizing the data buffer if necessary.
func (b *BinaryBuilder) ReserveData(n int) {
if b.values.capacity < b.values.length+n {
b.values.resize(b.values.Len() + n)
}
}
// Resize adjusts the space allocated by b to n elements. If n is greater than b.Cap(),
// additional memory will be allocated. If n is smaller, the allocated memory may be reduced.
func (b *BinaryBuilder) Resize(n int) {
b.offsets.resize((n + 1) * arrow.Int32SizeBytes)
b.builder.resize(n, b.init)
}
// NewArray creates a Binary array from the memory buffers used by the builder and resets the BinaryBuilder
// so it can be used to build a new array.
func (b *BinaryBuilder) NewArray() Interface {
return b.NewBinaryArray()
}
// NewBinaryArray creates a Binary array from the memory buffers used by the builder and resets the BinaryBuilder
// so it can be used to build a new array.
func (b *BinaryBuilder) NewBinaryArray() (a *Binary) {
data := b.newData()
a = NewBinaryData(data)
data.Release()
return
}
func (b *BinaryBuilder) newData() (data *Data) {
b.appendNextOffset()
offsets, values := b.offsets.Finish(), b.values.Finish()
data = NewData(b.dtype, b.length, []*memory.Buffer{b.nullBitmap, offsets, values}, nil, b.nulls, 0)
if offsets != nil {
offsets.Release()
}
if values != nil {
values.Release()
}
b.builder.reset()
return
}
func (b *BinaryBuilder) appendNextOffset() {
numBytes := b.values.Len()
// TODO(sgc): check binaryArrayMaximumCapacity?
b.offsets.AppendValue(int32(numBytes))
}
var (
_ Builder = (*BinaryBuilder)(nil)
)
-95
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@@ -1,95 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"fmt"
"strings"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/memory"
)
// A type which represents an immutable sequence of boolean values.
type Boolean struct {
array
values []byte
}
// NewBoolean creates a boolean array from the data memory.Buffer and contains length elements.
// The nullBitmap buffer can be nil of there are no null values.
// If nulls is not known, use UnknownNullCount to calculate the value of NullN at runtime from the nullBitmap buffer.
func NewBoolean(length int, data *memory.Buffer, nullBitmap *memory.Buffer, nulls int) *Boolean {
return NewBooleanData(NewData(arrow.FixedWidthTypes.Boolean, length, []*memory.Buffer{nullBitmap, data}, nil, nulls, 0))
}
func NewBooleanData(data *Data) *Boolean {
a := &Boolean{}
a.refCount = 1
a.setData(data)
return a
}
func (a *Boolean) Value(i int) bool {
if i < 0 || i >= a.array.data.length {
panic("arrow/array: index out of range")
}
return bitutil.BitIsSet(a.values, a.array.data.offset+i)
}
func (a *Boolean) String() string {
o := new(strings.Builder)
o.WriteString("[")
for i := 0; i < a.Len(); i++ {
if i > 0 {
fmt.Fprintf(o, " ")
}
switch {
case a.IsNull(i):
o.WriteString("(null)")
default:
fmt.Fprintf(o, "%v", a.Value(i))
}
}
o.WriteString("]")
return o.String()
}
func (a *Boolean) setData(data *Data) {
a.array.setData(data)
vals := data.buffers[1]
if vals != nil {
a.values = vals.Bytes()
}
}
func arrayEqualBoolean(left, right *Boolean) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
if left.Value(i) != right.Value(i) {
return false
}
}
return true
}
var (
_ Interface = (*Boolean)(nil)
)
-165
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@@ -1,165 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"sync/atomic"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/internal/debug"
"github.com/apache/arrow/go/arrow/memory"
)
type BooleanBuilder struct {
builder
data *memory.Buffer
rawData []byte
}
func NewBooleanBuilder(mem memory.Allocator) *BooleanBuilder {
return &BooleanBuilder{builder: builder{refCount: 1, mem: mem}}
}
// Release decreases the reference count by 1.
// When the reference count goes to zero, the memory is freed.
// Release may be called simultaneously from multiple goroutines.
func (b *BooleanBuilder) Release() {
debug.Assert(atomic.LoadInt64(&b.refCount) > 0, "too many releases")
if atomic.AddInt64(&b.refCount, -1) == 0 {
if b.nullBitmap != nil {
b.nullBitmap.Release()
b.nullBitmap = nil
}
if b.data != nil {
b.data.Release()
b.data = nil
b.rawData = nil
}
}
}
func (b *BooleanBuilder) Append(v bool) {
b.Reserve(1)
b.UnsafeAppend(v)
}
func (b *BooleanBuilder) AppendByte(v byte) {
b.Reserve(1)
b.UnsafeAppend(v != 0)
}
func (b *BooleanBuilder) AppendNull() {
b.Reserve(1)
b.UnsafeAppendBoolToBitmap(false)
}
func (b *BooleanBuilder) UnsafeAppend(v bool) {
bitutil.SetBit(b.nullBitmap.Bytes(), b.length)
if v {
bitutil.SetBit(b.rawData, b.length)
} else {
bitutil.ClearBit(b.rawData, b.length)
}
b.length++
}
func (b *BooleanBuilder) AppendValues(v []bool, valid []bool) {
if len(v) != len(valid) && len(valid) != 0 {
panic("len(v) != len(valid) && len(valid) != 0")
}
if len(v) == 0 {
return
}
b.Reserve(len(v))
for i, vv := range v {
bitutil.SetBitTo(b.rawData, b.length+i, vv)
}
b.builder.unsafeAppendBoolsToBitmap(valid, len(v))
}
func (b *BooleanBuilder) init(capacity int) {
b.builder.init(capacity)
b.data = memory.NewResizableBuffer(b.mem)
bytesN := arrow.BooleanTraits.BytesRequired(capacity)
b.data.Resize(bytesN)
b.rawData = b.data.Bytes()
}
// Reserve ensures there is enough space for appending n elements
// by checking the capacity and calling Resize if necessary.
func (b *BooleanBuilder) Reserve(n int) {
b.builder.reserve(n, b.Resize)
}
// Resize adjusts the space allocated by b to n elements. If n is greater than b.Cap(),
// additional memory will be allocated. If n is smaller, the allocated memory may reduced.
func (b *BooleanBuilder) Resize(n int) {
if n < minBuilderCapacity {
n = minBuilderCapacity
}
if b.capacity == 0 {
b.init(n)
} else {
b.builder.resize(n, b.init)
b.data.Resize(arrow.BooleanTraits.BytesRequired(n))
b.rawData = b.data.Bytes()
}
}
// NewArray creates a Boolean array from the memory buffers used by the builder and resets the BooleanBuilder
// so it can be used to build a new array.
func (b *BooleanBuilder) NewArray() Interface {
return b.NewBooleanArray()
}
// NewBooleanArray creates a Boolean array from the memory buffers used by the builder and resets the BooleanBuilder
// so it can be used to build a new array.
func (b *BooleanBuilder) NewBooleanArray() (a *Boolean) {
data := b.newData()
a = NewBooleanData(data)
data.Release()
return
}
func (b *BooleanBuilder) newData() *Data {
bytesRequired := arrow.BooleanTraits.BytesRequired(b.length)
if bytesRequired > 0 && bytesRequired < b.data.Len() {
// trim buffers
b.data.Resize(bytesRequired)
}
res := NewData(arrow.FixedWidthTypes.Boolean, b.length, []*memory.Buffer{b.nullBitmap, b.data}, nil, b.nulls, 0)
b.reset()
if b.data != nil {
b.data.Release()
b.data = nil
b.rawData = nil
}
return res
}
var (
_ Builder = (*BooleanBuilder)(nil)
)
-127
View File
@@ -1,127 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"sync/atomic"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/internal/debug"
"github.com/apache/arrow/go/arrow/memory"
)
// A bufferBuilder provides common functionality for populating memory with a sequence of type-specific values.
// Specialized implementations provide type-safe APIs for appending and accessing the memory.
type bufferBuilder struct {
refCount int64
mem memory.Allocator
buffer *memory.Buffer
length int
capacity int
bytes []byte
}
// Retain increases the reference count by 1.
// Retain may be called simultaneously from multiple goroutines.
func (b *bufferBuilder) Retain() {
atomic.AddInt64(&b.refCount, 1)
}
// Release decreases the reference count by 1.
// When the reference count goes to zero, the memory is freed.
// Release may be called simultaneously from multiple goroutines.
func (b *bufferBuilder) Release() {
debug.Assert(atomic.LoadInt64(&b.refCount) > 0, "too many releases")
if atomic.AddInt64(&b.refCount, -1) == 0 {
if b.buffer != nil {
b.buffer.Release()
b.buffer, b.bytes = nil, nil
}
}
}
// Len returns the length of the memory buffer in bytes.
func (b *bufferBuilder) Len() int { return b.length }
// Cap returns the total number of bytes that can be stored without allocating additional memory.
func (b *bufferBuilder) Cap() int { return b.capacity }
// Bytes returns a slice of length b.Len().
// The slice is only valid for use until the next buffer modification. That is, until the next call
// to Advance, Reset, Finish or any Append function. The slice aliases the buffer content at least until the next
// buffer modification.
func (b *bufferBuilder) Bytes() []byte { return b.bytes[:b.length] }
func (b *bufferBuilder) resize(elements int) {
if b.buffer == nil {
b.buffer = memory.NewResizableBuffer(b.mem)
}
b.buffer.Resize(elements)
oldCapacity := b.capacity
b.capacity = b.buffer.Cap()
b.bytes = b.buffer.Buf()
if b.capacity > oldCapacity {
memory.Set(b.bytes[oldCapacity:], 0)
}
}
// Advance increases the buffer by length and initializes the skipped bytes to zero.
func (b *bufferBuilder) Advance(length int) {
if b.capacity < b.length+length {
newCapacity := bitutil.NextPowerOf2(b.length + length)
b.resize(newCapacity)
}
b.length += length
}
// Append appends the contents of v to the buffer, resizing it if necessary.
func (b *bufferBuilder) Append(v []byte) {
if b.capacity < b.length+len(v) {
newCapacity := bitutil.NextPowerOf2(b.length + len(v))
b.resize(newCapacity)
}
b.unsafeAppend(v)
}
// Reset returns the buffer to an empty state. Reset releases the memory and sets the length and capacity to zero.
func (b *bufferBuilder) Reset() {
if b.buffer != nil {
b.buffer.Release()
}
b.buffer, b.bytes = nil, nil
b.capacity, b.length = 0, 0
}
// Finish TODO(sgc)
func (b *bufferBuilder) Finish() (buffer *memory.Buffer) {
if b.length > 0 {
b.buffer.ResizeNoShrink(b.length)
}
buffer = b.buffer
b.buffer = nil
b.Reset()
return
}
func (b *bufferBuilder) unsafeAppend(data []byte) {
copy(b.bytes[b.length:], data)
b.length += len(data)
}
-30
View File
@@ -1,30 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import "github.com/apache/arrow/go/arrow/memory"
type byteBufferBuilder struct {
bufferBuilder
}
func newByteBufferBuilder(mem memory.Allocator) *byteBufferBuilder {
return &byteBufferBuilder{bufferBuilder: bufferBuilder{refCount: 1, mem: mem}}
}
func (b *byteBufferBuilder) Values() []byte { return b.Bytes() }
func (b *byteBufferBuilder) Value(i int) byte { return b.bytes[i] }
@@ -1,58 +0,0 @@
// Code generated by array/bufferbuilder_numeric.gen.go.tmpl. DO NOT EDIT.
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/memory"
)
type int32BufferBuilder struct {
bufferBuilder
}
func newInt32BufferBuilder(mem memory.Allocator) *int32BufferBuilder {
return &int32BufferBuilder{bufferBuilder: bufferBuilder{refCount: 1, mem: mem}}
}
// AppendValues appends the contents of v to the buffer, growing the buffer as needed.
func (b *int32BufferBuilder) AppendValues(v []int32) { b.Append(arrow.Int32Traits.CastToBytes(v)) }
// Values returns a slice of length b.Len().
// The slice is only valid for use until the next buffer modification. That is, until the next call
// to Advance, Reset, Finish or any Append function. The slice aliases the buffer content at least until the next
// buffer modification.
func (b *int32BufferBuilder) Values() []int32 { return arrow.Int32Traits.CastFromBytes(b.Bytes()) }
// Value returns the int32 element at the index i. Value will panic if i is negative or ≥ Len.
func (b *int32BufferBuilder) Value(i int) int32 { return b.Values()[i] }
// Len returns the number of int32 elements in the buffer.
func (b *int32BufferBuilder) Len() int { return b.length / arrow.Int32SizeBytes }
// AppendValue appends v to the buffer, growing the buffer as needed.
func (b *int32BufferBuilder) AppendValue(v int32) {
if b.capacity < b.length+arrow.Int32SizeBytes {
newCapacity := bitutil.NextPowerOf2(b.length + arrow.Int32SizeBytes)
b.resize(newCapacity)
}
arrow.Int32Traits.PutValue(b.bytes[b.length:], v)
b.length += arrow.Int32SizeBytes
}
@@ -1,61 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/memory"
)
{{range .In}}
{{$TypeNamePrefix := .name}}
{{if .Opt.BufferBuilder}}
type {{$TypeNamePrefix}}BufferBuilder struct {
bufferBuilder
}
func new{{.Name}}BufferBuilder(mem memory.Allocator) *{{$TypeNamePrefix}}BufferBuilder {
return &{{$TypeNamePrefix}}BufferBuilder{bufferBuilder:bufferBuilder{refCount: 1, mem:mem}}
}
// AppendValues appends the contents of v to the buffer, growing the buffer as needed.
func (b *{{$TypeNamePrefix}}BufferBuilder) AppendValues(v []{{.Type}}) { b.Append(arrow.{{.Name}}Traits.CastToBytes(v)) }
// Values returns a slice of length b.Len().
// The slice is only valid for use until the next buffer modification. That is, until the next call
// to Advance, Reset, Finish or any Append function. The slice aliases the buffer content at least until the next
// buffer modification.
func (b *{{$TypeNamePrefix}}BufferBuilder) Values() []{{.Type}} { return arrow.{{.Name}}Traits.CastFromBytes(b.Bytes()) }
// Value returns the {{.Type}} element at the index i. Value will panic if i is negative or ≥ Len.
func (b *{{$TypeNamePrefix}}BufferBuilder) Value(i int) {{.Type}} { return b.Values()[i] }
// Len returns the number of {{.Type}} elements in the buffer.
func (b *{{$TypeNamePrefix}}BufferBuilder) Len() int { return b.length/arrow.{{.Name}}SizeBytes }
// AppendValue appends v to the buffer, growing the buffer as needed.
func (b *{{$TypeNamePrefix}}BufferBuilder) AppendValue(v {{.Type}}) {
if b.capacity < b.length+arrow.{{.Name}}SizeBytes {
newCapacity := bitutil.NextPowerOf2(b.length + arrow.{{.Name}}SizeBytes)
b.resize(newCapacity)
}
arrow.{{.Name}}Traits.PutValue(b.bytes[b.length:], v)
b.length+=arrow.{{.Name}}SizeBytes
}
{{end}}
{{end}}
-273
View File
@@ -1,273 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"fmt"
"sync/atomic"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/bitutil"
"github.com/apache/arrow/go/arrow/memory"
)
const (
minBuilderCapacity = 1 << 5
)
// Builder provides an interface to build arrow arrays.
type Builder interface {
// Retain increases the reference count by 1.
// Retain may be called simultaneously from multiple goroutines.
Retain()
// Release decreases the reference count by 1.
Release()
// Len returns the number of elements in the array builder.
Len() int
// Cap returns the total number of elements that can be stored
// without allocating additional memory.
Cap() int
// NullN returns the number of null values in the array builder.
NullN() int
// AppendNull adds a new null value to the array being built.
AppendNull()
// Reserve ensures there is enough space for appending n elements
// by checking the capacity and calling Resize if necessary.
Reserve(n int)
// Resize adjusts the space allocated by b to n elements. If n is greater than b.Cap(),
// additional memory will be allocated. If n is smaller, the allocated memory may reduced.
Resize(n int)
// NewArray creates a new array from the memory buffers used
// by the builder and resets the Builder so it can be used to build
// a new array.
NewArray() Interface
init(capacity int)
resize(newBits int, init func(int))
}
// builder provides common functionality for managing the validity bitmap (nulls) when building arrays.
type builder struct {
refCount int64
mem memory.Allocator
nullBitmap *memory.Buffer
nulls int
length int
capacity int
}
// Retain increases the reference count by 1.
// Retain may be called simultaneously from multiple goroutines.
func (b *builder) Retain() {
atomic.AddInt64(&b.refCount, 1)
}
// Len returns the number of elements in the array builder.
func (b *builder) Len() int { return b.length }
// Cap returns the total number of elements that can be stored without allocating additional memory.
func (b *builder) Cap() int { return b.capacity }
// NullN returns the number of null values in the array builder.
func (b *builder) NullN() int { return b.nulls }
func (b *builder) init(capacity int) {
toAlloc := bitutil.CeilByte(capacity) / 8
b.nullBitmap = memory.NewResizableBuffer(b.mem)
b.nullBitmap.Resize(toAlloc)
b.capacity = capacity
memory.Set(b.nullBitmap.Buf(), 0)
}
func (b *builder) reset() {
if b.nullBitmap != nil {
b.nullBitmap.Release()
b.nullBitmap = nil
}
b.nulls = 0
b.length = 0
b.capacity = 0
}
func (b *builder) resize(newBits int, init func(int)) {
if b.nullBitmap == nil {
init(newBits)
return
}
newBytesN := bitutil.CeilByte(newBits) / 8
oldBytesN := b.nullBitmap.Len()
b.nullBitmap.Resize(newBytesN)
b.capacity = newBits
if oldBytesN < newBytesN {
// TODO(sgc): necessary?
memory.Set(b.nullBitmap.Buf()[oldBytesN:], 0)
}
if newBits < b.length {
b.length = newBits
b.nulls = newBits - bitutil.CountSetBits(b.nullBitmap.Buf(), 0, newBits)
}
}
func (b *builder) reserve(elements int, resize func(int)) {
if b.length+elements > b.capacity {
newCap := bitutil.NextPowerOf2(b.length + elements)
resize(newCap)
}
}
// unsafeAppendBoolsToBitmap appends the contents of valid to the validity bitmap.
// As an optimization, if the valid slice is empty, the next length bits will be set to valid (not null).
func (b *builder) unsafeAppendBoolsToBitmap(valid []bool, length int) {
if len(valid) == 0 {
b.unsafeSetValid(length)
return
}
byteOffset := b.length / 8
bitOffset := byte(b.length % 8)
nullBitmap := b.nullBitmap.Bytes()
bitSet := nullBitmap[byteOffset]
for _, v := range valid {
if bitOffset == 8 {
bitOffset = 0
nullBitmap[byteOffset] = bitSet
byteOffset++
bitSet = nullBitmap[byteOffset]
}
if v {
bitSet |= bitutil.BitMask[bitOffset]
} else {
bitSet &= bitutil.FlippedBitMask[bitOffset]
b.nulls++
}
bitOffset++
}
if bitOffset != 0 {
nullBitmap[byteOffset] = bitSet
}
b.length += len(valid)
}
// unsafeSetValid sets the next length bits to valid in the validity bitmap.
func (b *builder) unsafeSetValid(length int) {
padToByte := min(8-(b.length%8), length)
if padToByte == 8 {
padToByte = 0
}
bits := b.nullBitmap.Bytes()
for i := b.length; i < b.length+padToByte; i++ {
bitutil.SetBit(bits, i)
}
start := (b.length + padToByte) / 8
fastLength := (length - padToByte) / 8
memory.Set(bits[start:start+fastLength], 0xff)
newLength := b.length + length
// trailing bytes
for i := b.length + padToByte + (fastLength * 8); i < newLength; i++ {
bitutil.SetBit(bits, i)
}
b.length = newLength
}
func (b *builder) UnsafeAppendBoolToBitmap(isValid bool) {
if isValid {
bitutil.SetBit(b.nullBitmap.Bytes(), b.length)
} else {
b.nulls++
}
b.length++
}
func NewBuilder(mem memory.Allocator, dtype arrow.DataType) Builder {
// FIXME(sbinet): use a type switch on dtype instead?
switch dtype.ID() {
case arrow.NULL:
case arrow.BOOL:
return NewBooleanBuilder(mem)
case arrow.UINT8:
return NewUint8Builder(mem)
case arrow.INT8:
return NewInt8Builder(mem)
case arrow.UINT16:
return NewUint16Builder(mem)
case arrow.INT16:
return NewInt16Builder(mem)
case arrow.UINT32:
return NewUint32Builder(mem)
case arrow.INT32:
return NewInt32Builder(mem)
case arrow.UINT64:
return NewUint64Builder(mem)
case arrow.INT64:
return NewInt64Builder(mem)
case arrow.FLOAT16:
return NewFloat16Builder(mem)
case arrow.FLOAT32:
return NewFloat32Builder(mem)
case arrow.FLOAT64:
return NewFloat64Builder(mem)
case arrow.STRING:
return NewStringBuilder(mem)
case arrow.BINARY:
return NewBinaryBuilder(mem, arrow.BinaryTypes.Binary)
case arrow.FIXED_SIZE_BINARY:
typ := dtype.(*arrow.FixedSizeBinaryType)
return NewFixedSizeBinaryBuilder(mem, typ)
case arrow.DATE32:
case arrow.DATE64:
case arrow.TIMESTAMP:
case arrow.TIME32:
typ := dtype.(*arrow.Time32Type)
return NewTime32Builder(mem, typ)
case arrow.TIME64:
typ := dtype.(*arrow.Time64Type)
return NewTime64Builder(mem, typ)
case arrow.INTERVAL:
case arrow.DECIMAL:
case arrow.LIST:
typ := dtype.(*arrow.ListType)
return NewListBuilder(mem, typ.Elem())
case arrow.STRUCT:
typ := dtype.(*arrow.StructType)
return NewStructBuilder(mem, typ)
case arrow.UNION:
case arrow.DICTIONARY:
case arrow.MAP:
case arrow.EXTENSION:
case arrow.FIXED_SIZE_LIST:
typ := dtype.(*arrow.FixedSizeListType)
return NewFixedSizeListBuilder(mem, typ.Len(), typ.Elem())
case arrow.DURATION:
}
panic(fmt.Errorf("arrow/array: unsupported builder for %T", dtype))
}
-474
View File
@@ -1,474 +0,0 @@
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"math"
"github.com/apache/arrow/go/arrow"
"github.com/apache/arrow/go/arrow/float16"
"golang.org/x/xerrors"
)
// RecordEqual reports whether the two provided records are equal.
func RecordEqual(left, right Record) bool {
switch {
case left.NumCols() != right.NumCols():
return false
case left.NumRows() != right.NumRows():
return false
}
for i := range left.Columns() {
lc := left.Column(i)
rc := right.Column(i)
if !ArrayEqual(lc, rc) {
return false
}
}
return true
}
// RecordApproxEqual reports whether the two provided records are approximately equal.
// For non-floating point columns, it is equivalent to RecordEqual.
func RecordApproxEqual(left, right Record, opts ...EqualOption) bool {
switch {
case left.NumCols() != right.NumCols():
return false
case left.NumRows() != right.NumRows():
return false
}
opt := newEqualOption(opts...)
for i := range left.Columns() {
lc := left.Column(i)
rc := right.Column(i)
if !arrayApproxEqual(lc, rc, opt) {
return false
}
}
return true
}
// ArrayEqual reports whether the two provided arrays are equal.
func ArrayEqual(left, right Interface) bool {
switch {
case !baseArrayEqual(left, right):
return false
case left.Len() == 0:
return true
case left.NullN() == left.Len():
return true
}
// at this point, we know both arrays have same type, same length, same number of nulls
// and nulls at the same place.
// compare the values.
switch l := left.(type) {
case *Null:
return true
case *Boolean:
r := right.(*Boolean)
return arrayEqualBoolean(l, r)
case *FixedSizeBinary:
r := right.(*FixedSizeBinary)
return arrayEqualFixedSizeBinary(l, r)
case *Binary:
r := right.(*Binary)
return arrayEqualBinary(l, r)
case *String:
r := right.(*String)
return arrayEqualString(l, r)
case *Int8:
r := right.(*Int8)
return arrayEqualInt8(l, r)
case *Int16:
r := right.(*Int16)
return arrayEqualInt16(l, r)
case *Int32:
r := right.(*Int32)
return arrayEqualInt32(l, r)
case *Int64:
r := right.(*Int64)
return arrayEqualInt64(l, r)
case *Uint8:
r := right.(*Uint8)
return arrayEqualUint8(l, r)
case *Uint16:
r := right.(*Uint16)
return arrayEqualUint16(l, r)
case *Uint32:
r := right.(*Uint32)
return arrayEqualUint32(l, r)
case *Uint64:
r := right.(*Uint64)
return arrayEqualUint64(l, r)
case *Float16:
r := right.(*Float16)
return arrayEqualFloat16(l, r)
case *Float32:
r := right.(*Float32)
return arrayEqualFloat32(l, r)
case *Float64:
r := right.(*Float64)
return arrayEqualFloat64(l, r)
case *Decimal128:
r := right.(*Decimal128)
return arrayEqualDecimal128(l, r)
case *Date32:
r := right.(*Date32)
return arrayEqualDate32(l, r)
case *Date64:
r := right.(*Date64)
return arrayEqualDate64(l, r)
case *Time32:
r := right.(*Time32)
return arrayEqualTime32(l, r)
case *Time64:
r := right.(*Time64)
return arrayEqualTime64(l, r)
case *Timestamp:
r := right.(*Timestamp)
return arrayEqualTimestamp(l, r)
case *List:
r := right.(*List)
return arrayEqualList(l, r)
case *FixedSizeList:
r := right.(*FixedSizeList)
return arrayEqualFixedSizeList(l, r)
case *Struct:
r := right.(*Struct)
return arrayEqualStruct(l, r)
case *MonthInterval:
r := right.(*MonthInterval)
return arrayEqualMonthInterval(l, r)
case *DayTimeInterval:
r := right.(*DayTimeInterval)
return arrayEqualDayTimeInterval(l, r)
case *Duration:
r := right.(*Duration)
return arrayEqualDuration(l, r)
default:
panic(xerrors.Errorf("arrow/array: unknown array type %T", l))
}
}
// ArraySliceEqual reports whether slices left[lbeg:lend] and right[rbeg:rend] are equal.
func ArraySliceEqual(left Interface, lbeg, lend int64, right Interface, rbeg, rend int64) bool {
l := NewSlice(left, lbeg, lend)
defer l.Release()
r := NewSlice(right, rbeg, rend)
defer r.Release()
return ArrayEqual(l, r)
}
const defaultAbsoluteTolerance = 1e-5
type equalOption struct {
atol float64 // absolute tolerance
nansEq bool // whether NaNs are considered equal.
}
func (eq equalOption) f16(f1, f2 float16.Num) bool {
v1 := float64(f1.Float32())
v2 := float64(f2.Float32())
switch {
case eq.nansEq:
return math.Abs(v1-v2) <= eq.atol || (math.IsNaN(v1) && math.IsNaN(v2))
default:
return math.Abs(v1-v2) <= eq.atol
}
}
func (eq equalOption) f32(f1, f2 float32) bool {
v1 := float64(f1)
v2 := float64(f2)
switch {
case eq.nansEq:
return math.Abs(v1-v2) <= eq.atol || (math.IsNaN(v1) && math.IsNaN(v2))
default:
return math.Abs(v1-v2) <= eq.atol
}
}
func (eq equalOption) f64(v1, v2 float64) bool {
switch {
case eq.nansEq:
return math.Abs(v1-v2) <= eq.atol || (math.IsNaN(v1) && math.IsNaN(v2))
default:
return math.Abs(v1-v2) <= eq.atol
}
}
func newEqualOption(opts ...EqualOption) equalOption {
eq := equalOption{
atol: defaultAbsoluteTolerance,
nansEq: false,
}
for _, opt := range opts {
opt(&eq)
}
return eq
}
// EqualOption is a functional option type used to configure how Records and Arrays are compared.
type EqualOption func(*equalOption)
// WithNaNsEqual configures the comparison functions so that NaNs are considered equal.
func WithNaNsEqual(v bool) EqualOption {
return func(o *equalOption) {
o.nansEq = v
}
}
// WithAbsTolerance configures the comparison functions so that 2 floating point values
// v1 and v2 are considered equal if |v1-v2| <= atol.
func WithAbsTolerance(atol float64) EqualOption {
return func(o *equalOption) {
o.atol = atol
}
}
// ArrayApproxEqual reports whether the two provided arrays are approximately equal.
// For non-floating point arrays, it is equivalent to ArrayEqual.
func ArrayApproxEqual(left, right Interface, opts ...EqualOption) bool {
opt := newEqualOption(opts...)
return arrayApproxEqual(left, right, opt)
}
func arrayApproxEqual(left, right Interface, opt equalOption) bool {
switch {
case !baseArrayEqual(left, right):
return false
case left.Len() == 0:
return true
case left.NullN() == left.Len():
return true
}
// at this point, we know both arrays have same type, same length, same number of nulls
// and nulls at the same place.
// compare the values.
switch l := left.(type) {
case *Null:
return true
case *Boolean:
r := right.(*Boolean)
return arrayEqualBoolean(l, r)
case *FixedSizeBinary:
r := right.(*FixedSizeBinary)
return arrayEqualFixedSizeBinary(l, r)
case *Binary:
r := right.(*Binary)
return arrayEqualBinary(l, r)
case *String:
r := right.(*String)
return arrayEqualString(l, r)
case *Int8:
r := right.(*Int8)
return arrayEqualInt8(l, r)
case *Int16:
r := right.(*Int16)
return arrayEqualInt16(l, r)
case *Int32:
r := right.(*Int32)
return arrayEqualInt32(l, r)
case *Int64:
r := right.(*Int64)
return arrayEqualInt64(l, r)
case *Uint8:
r := right.(*Uint8)
return arrayEqualUint8(l, r)
case *Uint16:
r := right.(*Uint16)
return arrayEqualUint16(l, r)
case *Uint32:
r := right.(*Uint32)
return arrayEqualUint32(l, r)
case *Uint64:
r := right.(*Uint64)
return arrayEqualUint64(l, r)
case *Float16:
r := right.(*Float16)
return arrayApproxEqualFloat16(l, r, opt)
case *Float32:
r := right.(*Float32)
return arrayApproxEqualFloat32(l, r, opt)
case *Float64:
r := right.(*Float64)
return arrayApproxEqualFloat64(l, r, opt)
case *Decimal128:
r := right.(*Decimal128)
return arrayEqualDecimal128(l, r)
case *Date32:
r := right.(*Date32)
return arrayEqualDate32(l, r)
case *Date64:
r := right.(*Date64)
return arrayEqualDate64(l, r)
case *Time32:
r := right.(*Time32)
return arrayEqualTime32(l, r)
case *Time64:
r := right.(*Time64)
return arrayEqualTime64(l, r)
case *Timestamp:
r := right.(*Timestamp)
return arrayEqualTimestamp(l, r)
case *List:
r := right.(*List)
return arrayApproxEqualList(l, r, opt)
case *FixedSizeList:
r := right.(*FixedSizeList)
return arrayApproxEqualFixedSizeList(l, r, opt)
case *Struct:
r := right.(*Struct)
return arrayApproxEqualStruct(l, r, opt)
case *MonthInterval:
r := right.(*MonthInterval)
return arrayEqualMonthInterval(l, r)
case *DayTimeInterval:
r := right.(*DayTimeInterval)
return arrayEqualDayTimeInterval(l, r)
case *Duration:
r := right.(*Duration)
return arrayEqualDuration(l, r)
default:
panic(xerrors.Errorf("arrow/array: unknown array type %T", l))
}
return false
}
func baseArrayEqual(left, right Interface) bool {
switch {
case left.Len() != right.Len():
return false
case left.NullN() != right.NullN():
return false
case !arrow.TypeEqual(left.DataType(), right.DataType()): // We do not check for metadata as in the C++ implementation.
return false
case !validityBitmapEqual(left, right):
return false
}
return true
}
func validityBitmapEqual(left, right Interface) bool {
// TODO(alexandreyc): make it faster by comparing byte slices of the validity bitmap?
n := left.Len()
if n != right.Len() {
return false
}
for i := 0; i < n; i++ {
if left.IsNull(i) != right.IsNull(i) {
return false
}
}
return true
}
func arrayApproxEqualFloat16(left, right *Float16, opt equalOption) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
if !opt.f16(left.Value(i), right.Value(i)) {
return false
}
}
return true
}
func arrayApproxEqualFloat32(left, right *Float32, opt equalOption) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
if !opt.f32(left.Value(i), right.Value(i)) {
return false
}
}
return true
}
func arrayApproxEqualFloat64(left, right *Float64, opt equalOption) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
if !opt.f64(left.Value(i), right.Value(i)) {
return false
}
}
return true
}
func arrayApproxEqualList(left, right *List, opt equalOption) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
o := func() bool {
l := left.newListValue(i)
defer l.Release()
r := right.newListValue(i)
defer r.Release()
return arrayApproxEqual(l, r, opt)
}()
if !o {
return false
}
}
return true
}
func arrayApproxEqualFixedSizeList(left, right *FixedSizeList, opt equalOption) bool {
for i := 0; i < left.Len(); i++ {
if left.IsNull(i) {
continue
}
o := func() bool {
l := left.newListValue(i)
defer l.Release()
r := right.newListValue(i)
defer r.Release()
return arrayApproxEqual(l, r, opt)
}()
if !o {
return false
}
}
return true
}
func arrayApproxEqualStruct(left, right *Struct, opt equalOption) bool {
for i, lf := range left.fields {
rf := right.fields[i]
if !arrayApproxEqual(lf, rf, opt) {
return false
}
}
return true
}

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