ced53a8dc2
* Refactor towards template/codegen framework * Add templates for plugin gen * Add Go codegen for plugins; overhaul framework, too * Add new codegen output; assorted framework fixes * Regenerate after merge * Remove accidental commit file, update templates * Export the pfs.Tree loader from plugin types * Print details from cuetsy errors * Generate loaders for all plugins and list in registry * Use pfs_gen.go over lineage_gen.go * Un-un-ignore main file * Introduce simple List static registry for plugins * Last tweaks to codegen * remove unused tvars * Ensure loop-local instances for both vars * Generate pfs parsing in-place in registry * Stop generating pfs_gen.go * Move Tree into pfs, rename subdir * Change package name to match dir * Ignore gocyclo on HTTPServer.getNavTree
59 lines
1.8 KiB
Cheetah
59 lines
1.8 KiB
Cheetah
{{ template "autogen_header.tmpl" .Header -}}
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package {{ .PackageName }}
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import (
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"embed"
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"fmt"
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"path/filepath"
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"sync"
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"github.com/grafana/grafana/pkg/cuectx"
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"github.com/grafana/grafana/pkg/plugins/pfs"
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"github.com/grafana/thema"
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)
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var parseOnce sync.Once
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var ptree *pfs.Tree
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//go:embed plugin.{{ if .RootCUE }}cue{{ else }}json{{ end }}{{ if .HasModels }} models.cue{{ end }}
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var plugFS embed.FS
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// PluginTree returns the plugin tree representing the statically analyzable contents of the {{ .PluginID }} plugin.
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func PluginTree(lib *thema.Library) *pfs.Tree {
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var err error
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if lib == nil {
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parseOnce.Do(func() {
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ptree, err = pfs.ParsePluginFS(plugFS, cuectx.ProvideThemaLibrary())
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})
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} else {
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ptree, err = pfs.ParsePluginFS(plugFS, cuectx.ProvideThemaLibrary())
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}
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if err != nil {
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// Even the most rudimentary testing in CI ensures this is unreachable
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panic(fmt.Errorf("error parsing plugin fs tree: %w", err))
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}
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return ptree
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}
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{{ $pluginfo := . }}{{ range $slot := .SlotImpls }}
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// {{ .SlotName }}Lineage returns the Thema lineage for the {{ $pluginfo.PluginID }} {{ $pluginfo.PluginType }} plugin's
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// {{ .SlotName }} ["github.com/grafana/grafana/pkg/framework/coremodel".Slot] implementation.
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func {{ .SlotName }}Lineage(lib *thema.Library, opts ...thema.BindOption) (thema.Lineage, error) {
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t := PluginTree(lib)
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lin, has := t.RootPlugin().SlotImplementations()["{{ .SlotName }}"]
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if !has {
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panic("unreachable: lineage for {{ .SlotName }} does not exist, but code is only generated for existing lineages")
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}
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return lin, nil
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}
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// The current schema version of the {{ .SlotName }} slot implementation.
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//
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// Code generation ensures that this is always the version number for the latest schema
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// in the {{ .SlotName }} Thema lineage.
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var currentVersion{{ .SlotName }} = thema.SV({{ .LatestMajv }}, {{ .LatestMinv }})
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{{ end }}
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