ci: cache vscode binary in CI (angular#64219)

Caches the downloaded vscode binary in the CI workflows to speed up the e2e tests for the vscode extension. This avoids downloading vscode on every CI run.

PR Close angular#64219

Author: alan-agius4

.github/workflows/ci.yml

@@ -133,6 +133,11 @@ jobs:
           google_credential: ${{ secrets.RBE_TRUSTED_BUILDS_USER }}
       - name: Install node modules
         run: pnpm install --frozen-lockfile
+      - name: Cache downloaded vscode binary
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: '~/.cache/vscode-test'
+          key: vscode-cache-${{ runner.os }}-${{ hashFiles('vscode-ng-language-service/integration/e2e/index.ts') }} # The version is specified in this file.
       - name: Run tests
         run: pnpm bazel test //vscode-ng-language-service/...
 

.github/workflows/pr.yml

@@ -139,6 +139,11 @@ jobs:
         uses: angular/dev-infra/github-actions/bazel/configure-remote@b7672ff60456719e6d9b0cc052abc73a7adc8df2
       - name: Install node modules
         run: pnpm install --frozen-lockfile
+      - name: Cache downloaded vscode binary
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: '~/.cache/vscode-test'
+          key: vscode-cache-${{ runner.os }}-${{ hashFiles('vscode-ng-language-service/integration/e2e/index.ts') }} # The version is specified in this file.
       - name: Run tests
         run: pnpm bazel test //vscode-ng-language-service/...
 

vscode-ng-language-service/integration/e2e/index.ts

@@ -1,5 +1,5 @@
 import {join} from 'node:path';
-import {tmpdir} from 'node:os';
+import {homedir, tmpdir} from 'node:os';
 import {runTests} from '@vscode/test-electron';
 
 import {PACKAGE_ROOT, PROJECT_PATH} from '../test_constants';
@@ -24,7 +24,7 @@ async function main() {
       extensionDevelopmentPath: EXT_DEVELOPMENT_PATH,
       extensionTestsPath: EXT_TESTS_PATH,
       // Avoid redownloading vscode if the test if flaky.
-      cachePath: join(tmpdir(), 'vscode-cache'),
+      cachePath: join(homedir(), '.cache/vscode-test'),
       launchArgs: [
         PROJECT_PATH,
         // This disables all extensions except the one being tested