.github/actions/configure-nodejs/action.yml

@@ -0,0 +1,34 @@
+name: 'Configure Node.js'
+description: 'Install Node.js and install Node.js modules or restore cache'
+
+inputs:
+  node-version:
+    description: 'NodeJS Version'
+    default: '18'
+  lookup-only:
+    description: 'If true, only checks if cache entry exists and skips download. Does not change save cache behavior. Does not install node on a hit (used primarily for install deps jobs).'
+    default: 'false'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Restore Node Modules from Cache
+      id: cache-node-modules
+      uses: actions/cache@v4
+      with:
+        path: |
+          node_modules
+          packages/**/node_modules
+          !node_modules/.cache
+        key: node-modules-v2-${{ inputs.node-version }}-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('package.json', 'package-lock.json') }}
+        lookup-only: ${{ inputs.lookup-only }}
+
+    - uses: actions/setup-node@v4
+      if: inputs.lookup-only == 'false' || steps.cache-node-modules.outputs.cache-hit != 'true'
+      with:
+        node-version: ${{ inputs.node-version }}
+
+    - name: Install dependencies
+      if: steps.cache-node-modules.outputs.cache-hit != 'true'
+      shell: bash
+      run: npm ci

.github/workflows/nodejs.yml

@@ -3,18 +3,31 @@ name: Node CI
 on: [push, pull_request]
 
 jobs:
-  build:
+  # We do not strictly need an install-deps job
+  # because we do not kick of multiple jobs in parallel
+  # that would all try to install deps when the key changes.
+  # Skipping this saves a few seconds until the point where we need it.
+  # install-deps:
+  #   runs-on: ubuntu-latest
+  #   strategy:
+  #     matrix:
+  #       node-version: [12.x, 14.x, 16.x]
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - uses: ./.github/actions/configure-nodejs
+  #       with:
+  #         node-version: ${{ matrix.node-version }}
+  #         lookup-only: 'true' # We only want to lookup from the cache - if a hit, this job does nothing
 
+  build:
     runs-on: ubuntu-latest
-
     strategy:
       matrix:
         node-version: [16.x, 18.x, 20.x]
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
+    - uses: actions/checkout@v4
+    - uses: ./.github/actions/configure-nodejs
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm ci