From 4fecf5a7a65f5b7b4c03fefb9a3da15cee938f02 Mon Sep 17 00:00:00 2001
From: Steven Vachon <contact@svachon.com>
Date: Wed, 11 Mar 2020 15:30:29 -0400
Subject: [PATCH] @grafana/e2e: correctly exclude dependencies from TypeScript
 builds (#22732)

* maintains support for Grafana core e2e tests
* avoids producing declaration files in plugin source directories
---
 .../cypress/plugins/typescriptPreprocessor.js      | 14 ++++++++++++++
 packages/grafana-e2e/cypress/tsconfig.json         |  4 +++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/packages/grafana-e2e/cypress/plugins/typescriptPreprocessor.js b/packages/grafana-e2e/cypress/plugins/typescriptPreprocessor.js
index 352b660a1a0..e187e63c8d6 100644
--- a/packages/grafana-e2e/cypress/plugins/typescriptPreprocessor.js
+++ b/packages/grafana-e2e/cypress/plugins/typescriptPreprocessor.js
@@ -1,9 +1,23 @@
+const { resolve } = require('path');
 const wp = require('@cypress/webpack-preprocessor');
 
+const anyNodeModules = /node_modules/;
+const packageRoot = resolve(`${__dirname}/../../`);
+const packageModules = `${packageRoot}/node_modules`;
+
 const webpackOptions = {
   module: {
     rules: [
       {
+        include: modulePath => {
+          if (!anyNodeModules.test(modulePath)) {
+            // Is a file within the project
+            return true;
+          } else {
+            // Is a file within this package
+            return modulePath.startsWith(packageRoot) && !modulePath.startsWith(packageModules);
+          }
+        },
         test: /\.ts$/,
         use: [
           {
diff --git a/packages/grafana-e2e/cypress/tsconfig.json b/packages/grafana-e2e/cypress/tsconfig.json
index c5d0b72aed0..347c670a6a7 100644
--- a/packages/grafana-e2e/cypress/tsconfig.json
+++ b/packages/grafana-e2e/cypress/tsconfig.json
@@ -1,7 +1,9 @@
 {
   "compilerOptions": {
+    "declaration": false,
+    "module": "commonjs",
     "types": ["cypress"]
   },
-  "extends": "../tsconfig.json",
+  "extends": "@grafana/tsconfig",
   "include": ["**/*.ts"]
 }