Merge pull request #2 from wundergraph/ondrej/eng-9190-design-and-build-purpose-built-demo-federated-graph-for-2

feat: add caching to CI

Author: comatory

.github/actions/setup/action.yaml

@@ -1,5 +1,15 @@
 name: "Setup environment"
 description: "This action install node, pnpm & Go toolchain"
+inputs:
+  setup-go:
+    # TODO: wgc router plugin build downloads its own Go toolchain (1.24.x) and uses it
+    # for compilation. When actions/setup-go runs first it sets GOTOOLCHAIN=local, which
+    # prevents that downloaded Go from auto-upgrading to satisfy go.mod's go directive,
+    # causing the build to fail. Disable setup-go for jobs that rely on wgc's toolchain
+    # management until wgc supports using the system Go or exposes a flag for it.
+    description: "Whether to install the Go toolchain"
+    default: "false"
+    required: false
 
 runs:
   using: "composite"
@@ -9,8 +19,29 @@ runs:
         node-version: lts/*
 
     - uses: pnpm/action-setup@v5.0.0
+      id: pnpm-install
       with:
-        run_install: true
-    - uses: actions/setup-go@v5
+        run_install: false
+
+    - name: Get pnpm store directory
+      shell: bash
+      id: pnpm-cache
+      run: echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+    - uses: actions/cache@v5.0.4
+      name: Setup pnpm cache
+      with:
+        path: ${{ steps.pnpm-cache.outputs.pnpm_cache_dir }}
+        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+        restore-keys: |
+          ${{ runner.os }}-pnpm-store-
+
+    - name: Install dependencies
+      shell: bash
+      run: pnpm install
+
+    - uses: actions/setup-go@v6.3.0
+      if: ${{ inputs.setup-go == 'true' }}
       with:
         go-version: 1.25.1
+        cache-dependency-path: '**/go.sum'

.github/workflows/ci.yaml

@@ -14,17 +14,19 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-       - uses: actions/checkout@v6
+       - uses: actions/checkout@v6.0.2
        - uses: ./.github/actions/setup
        - run: make build-ci
   lint_and_format:
     name: Lint & Format
     runs-on: ubuntu-latest
     steps:
-       - uses: actions/checkout@v6
+       - uses: actions/checkout@v6.0.2
        - uses: ./.github/actions/setup
+         with:
+           setup-go: "true"
        - name: golangci-lint
-         uses: golangci/golangci-lint-action@v9
+         uses: golangci/golangci-lint-action@v9.2.0
          with:
            version: v2.11.3
            install-only: true
@@ -40,6 +42,8 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-       - uses: actions/checkout@v6
+       - uses: actions/checkout@v6.0.2
        - uses: ./.github/actions/setup
+         with:
+           setup-go: "true"
        - run: make test-ci