From b8e09f72e14462e4dcb801ac10a684f8a0d2de1f Mon Sep 17 00:00:00 2001
From: vscaiceanu-1a <86055112+vscaiceanu-1a@users.noreply.github.com>
Date: Tue, 5 Nov 2024 16:41:28 +0200
Subject: [PATCH] fix(pipeline): cache yarn deps with corepack

---
 .../@o3r/pipeline/schematics/ng-add/index.ts  |  8 +++++--
 .../__dot__github/actions/setup/action.yml    | 24 +++++++++++++------
 2 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/packages/@o3r/pipeline/schematics/ng-add/index.ts b/packages/@o3r/pipeline/schematics/ng-add/index.ts
index 5afa9fca0a..6e7a7362d7 100644
--- a/packages/@o3r/pipeline/schematics/ng-add/index.ts
+++ b/packages/@o3r/pipeline/schematics/ng-add/index.ts
@@ -26,12 +26,15 @@ function ngAddFn(options: NgAddSchematicsSchema): Rule {
     }
     context.logger.info(`Setting up pipeline for package manager: "${packageManager}" `);
     const setupCommand = packageManager === 'yarn' ? 'yarn install --immutable' : 'npm ci';
+    const isYarn2 = packageManager === 'yarn' && tree.exists('/.yarnrc.yml');
+    const yarnCacheFolder = isYarn2 ? 'yarn config get cacheFolder' : 'yarn cache dir';
     const baseTemplateSource = apply(url(`./templates/${options.toolchain}`), [
       template({
         ...options,
         packageManager,
         setupCommand,
         actionVersionString,
+        yarnCacheFolder,
         dot: '.'
       }),
       move(tree.root.path)
@@ -41,7 +44,7 @@ function ngAddFn(options: NgAddSchematicsSchema): Rule {
       if (!options.npmRegistry) {
         return tree;
       }
-      if (packageManager === 'yarn') {
+      if (isYarn2) {
         const yarnrcPath = '/.yarnrc.yml';
         if (!tree.exists(yarnrcPath)) {
           tree.create(yarnrcPath, dump({'npmRegistryServer': options.npmRegistry}, {indent: 2}));
@@ -50,7 +53,8 @@ function ngAddFn(options: NgAddSchematicsSchema): Rule {
           yarnrcContent.npmRegistryServer = options.npmRegistry;
           tree.overwrite(yarnrcPath, dump(yarnrcContent, {indent: 2}));
         }
-      } else if (packageManager === 'npm') {
+      } else {
+        // both npm and yarn 1 use .npmrc for the registry
         const npmrcPath = '/.npmrc';
         if (!tree.exists(npmrcPath)) {
           tree.create(npmrcPath, `registry=${options.npmRegistry}`);
diff --git a/packages/@o3r/pipeline/schematics/ng-add/templates/github/__dot__github/actions/setup/action.yml b/packages/@o3r/pipeline/schematics/ng-add/templates/github/__dot__github/actions/setup/action.yml
index 2f6c6e6853..8554309218 100644
--- a/packages/@o3r/pipeline/schematics/ng-add/templates/github/__dot__github/actions/setup/action.yml
+++ b/packages/@o3r/pipeline/schematics/ng-add/templates/github/__dot__github/actions/setup/action.yml
@@ -6,16 +6,26 @@ runs:
   steps:
     - uses: actions/setup-node@0a44ba7841725637a19e28fa30b79a866c81b0a6 # v4.0.4
       with:
-        node-version: 20
-        cache: <%= packageManager %>
+        node-version: 20<% if (packageManager !== 'yarn') { %>
+        cache: <%= packageManager %><% } %>
     - name: Enable Corepack
       shell: bash
-      run: corepack enable
-    - name: Install
-<% if (npmRegistry) { %>
+      run: corepack enable<% if (packageManager === 'yarn') { %>
+    - name: Get yarn cache directory path
+      shell: bash
+      id: yarn-cache-dir-path
+      run: echo "dir=$(<%= yarnCacheFolder %>)" >> $GITHUB_OUTPUT
+    - name: Cache dependencies
+      uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4.1.2
+      with:
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: ${{ runner.os }}-yarn-${{ hashFiles('yarn.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-yarn
+          ${{ runner.os }}<% } %>
+    - name: Install<% if (npmRegistry) { %>
       env:
         COREPACK_NPM_REGISTRY: <%= npmRegistry %>
-        COREPACK_INTEGRITY_KEYS: ""
-<% } %>
+        COREPACK_INTEGRITY_KEYS: ""<% } %>
       shell: bash
       run: <%= setupCommand %>