Use a weekly cache key for PNPM store (#34656)

Closes #34655

Signed-off-by: Jon Koops <jonkoops@gmail.com>

.github/actions/build-keycloak/action.yml

@@ -24,9 +24,9 @@ runs:
       with:
         create-cache-if-it-doesnt-exist: true
 
-    - id: frontend-plugin-cache
-      name: Frontend Plugin Cache
-      uses: ./.github/actions/frontend-plugin-cache
+    - id: pnpm-store-cache
+      name: PNPM store cache
+      uses: ./.github/actions/pnpm-store-cache
 
     - id: build-keycloak
       name: Build Keycloak

.github/actions/cypress-cache/action.yml

@@ -0,0 +1,20 @@
+name: Cache Cypress
+description: Caches Cypress binary to speed up the build.
+
+runs:
+  using: composite
+  steps:
+    - id: cache-key
+      name: Cache key based on Cypress version
+      shell: bash
+      run: echo "key=cypress-binary-$(jq -r '.devDependencies.cypress' js/apps/admin-ui/package.json)" >> $GITHUB_OUTPUT
+
+    - uses: actions/cache@v4
+      name: Cache Cypress binary
+      with:
+        # See: https://docs.cypress.io/app/references/advanced-installation#Binary-cache
+        path: |
+          ~/.cache/Cypress
+          /AppData/Local/Cypress/Cache
+          ~/Library/Caches/Cypress
+        key: ${{ runner.os }}-${{ steps.cache-key.outputs.key }}

.github/actions/frontend-plugin-cache/action.yml

@@ -1,21 +0,0 @@
-name: Frontend Plugin Cache
-description: Caches NPM dependencies for the frontend-maven-plugin to speed up builds
-
-runs:
-  using: composite
-  steps:
-    - name: Get PNPM version
-      id: pnpm-version
-      shell: bash
-      run: |
-        echo "version=$(./mvnw help:evaluate -Dexpression=pnpm.version -q -DforceStdout)" >> $GITHUB_OUTPUT
-
-    - uses: actions/cache@v4
-      name: Cache PNPM store
-      with:
-        # See: https://pnpm.io/npmrc#store-dir
-        path: |
-          ~/.local/share/pnpm/store
-          ~/AppData/Local/pnpm/store
-          ~/Library/pnpm/store
-        key: ${{ runner.os }}-frontend-plugin-pnpm-store-${{ steps.pnpm-version.outputs.version }}-${{ hashFiles('pnpm-lock.yaml') }}

.github/actions/integration-test-setup/action.yml

@@ -25,9 +25,9 @@ runs:
       name: Maven cache
       uses: ./.github/actions/maven-cache
 
-    - id: frontend-plugin-cache
-      name: Frontend Plugin Cache
-      uses: ./.github/actions/frontend-plugin-cache
+    - id: pnpm-store-cache
+      name: PNPM store cache
+      uses: ./.github/actions/pnpm-store-cache
 
     - id: download-keycloak
       name: Download Keycloak Maven artifacts

.github/actions/pnpm-setup/action.yml

@@ -20,26 +20,19 @@ runs:
       shell: bash
       run: corepack enable
 
-    - name: Get PNPM store directory
-      id: pnpm-cache
-      shell: bash
-      run: |
-        echo "store-path=$(pnpm store path --silent)" >> $GITHUB_OUTPUT
+    - name: PNPM store cache
+      uses: ./.github/actions/pnpm-store-cache
 
-    - uses: actions/cache@v4
-      name: Setup PNPM cache
-      with:
-        # Also cache Cypress binary.
-        path: |
-          ~/.cache/Cypress
-          ${{ steps.pnpm-cache.outputs.store-path }}
-        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('pnpm-lock.yaml') }}
-        restore-keys: |
-          ${{ runner.os }}-pnpm-store-
+    - name: Cypress binary cache
+      uses: ./.github/actions/cypress-cache
 
     - name: Install dependencies
       shell: bash
-      # Run the store prune after the installation to avoid having caches which grow over time
-      run: |
-        pnpm install --prefer-offline --frozen-lockfile
-        pnpm store prune
+      run: pnpm install --prefer-offline --frozen-lockfile
+
+    # This step is only needed to ensure that the Cypress binary is installed.
+    # If the binary was retrieved from the cache, this step is a no-op.
+    - name: Install Cypress dependencies
+      shell: bash
+      working-directory: js/apps/admin-ui
+      run: pnpm exec cypress install

.github/actions/pnpm-store-cache/action.yml

@@ -0,0 +1,20 @@
+name: Cache PNPM store
+description: Caches the PNPM store to speed up the build.
+
+runs:
+  using: composite
+  steps:
+    - id: weekly-cache-key
+      name: Key for weekly rotation of cache
+      shell: bash
+      run: echo "key=pnpm-store-`date -u "+%Y-%U"`" >> $GITHUB_OUTPUT
+
+    - uses: actions/cache@v4
+      name: Cache PNPM store
+      with:
+        # See: https://pnpm.io/npmrc#store-dir
+        path: |
+          ~/.local/share/pnpm/store
+          ~/AppData/Local/pnpm/store
+          ~/Library/pnpm/store
+        key: ${{ runner.os }}-${{ steps.weekly-cache-key.outputs.key }}

.github/actions/unit-test-setup/action.yml

@@ -11,6 +11,6 @@ runs:
       name: Maven cache
       uses: ./.github/actions/maven-cache
 
-    - id: frontend-plugin-cache
+    - id: pnpm-store-cache
       name: Frontend Plugin Cache
-      uses: ./.github/actions/frontend-plugin-cache
+      uses: ./.github/actions/pnpm-store-cache