Improve GHA workflows

.github/actions/install-dependencies/action.yml

@@ -33,7 +33,7 @@ runs:
           packages/*/node_modules
           packages/*/src/generated
           packages/scratch-gui/static/microbit
-        key: ${{ runner.os }}-npm-${{ hashFiles('package-lock.json') }}
+        key: ${{ runner.os }}-npm-${{ hashFiles('.nvmrc', 'package-lock.json') }}
     - if: steps.restore-node-modules-cache.outputs.cache-hit != 'true'
       name: Install NPM dependencies
       working-directory: .
@@ -47,4 +47,4 @@ runs:
           packages/*/node_modules
           packages/*/src/generated
           packages/scratch-gui/static/microbit
-        key: ${{ runner.os }}-npm-${{ hashFiles('package-lock.json') }}
+        key: ${{ runner.os }}-npm-${{ hashFiles('.nvmrc', 'package-lock.json') }}

.github/path-filters.yml

@@ -0,0 +1,31 @@
+# The `&global` anchor defines a set of common paths to include by reference in the other filters.
+global: &global
+  - ".github/path-filters.yml"
+  - ".github/workflows/ci.yml"
+  - ".nvmrc"
+  - "package.json"
+  - "package-lock.json"
+  - "scripts/**"
+
+any-workspace:
+  - *global
+  - "packages/**"
+
+scratch-svg-renderer:
+  - *global
+  - "packages/scratch-svg-renderer/**"
+scratch-render:
+  - *global
+  - "packages/scratch-render/**"
+  - "packages/scratch-svg-renderer/**"
+scratch-vm:
+  - *global
+  - "packages/scratch-render/**"
+  - "packages/scratch-svg-renderer/**"
+  - "packages/scratch-vm/**"
+scratch-gui:
+  - *global
+  - "packages/scratch-gui/**"
+  - "packages/scratch-render/**"
+  - "packages/scratch-svg-renderer/**"
+  - "packages/scratch-vm/**"

.github/workflows/ci.yml

@@ -12,16 +12,17 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  ci:
-    name: Detect affected packages, build and test
+  build:
     runs-on: ubuntu-latest
+    outputs:
+      any-workspace: ${{ steps.filter.outputs.any-workspace }}
+      packages: ${{ steps.filter.outputs.changes }}
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4
         with:
           cache: 'npm'
           node-version-file: '.nvmrc'
-      - uses: wagoid/commitlint-github-action@9763196e10f27aef304c9b8b660d31d97fce0f99 # v5
       - name: Debug info
         run: |
           cat <<EOF
@@ -36,54 +37,48 @@ jobs:
       - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3
         id: filter
         with:
-          # Files in the `global` filter affect all workspaces, even if workspace-specific files have not changed.
-          filters: |
-            global:
-              - ".github/workflows/ci.yml"
-              - "package.json"
-              - "package-lock.json"
-              - "scripts/**"
-            any-workspace:
-              - "packages/**"
-            scratch-svg-renderer:
-              - "packages/scratch-svg-renderer/**"
-            scratch-render:
-              - "packages/scratch-render/**"
-              - "packages/scratch-svg-renderer/**"
-            scratch-vm:
-              - "packages/scratch-render/**"
-              - "packages/scratch-svg-renderer/**"
-              - "packages/scratch-vm/**"
-            scratch-gui:
-              - "packages/scratch-gui/**"
-              - "packages/scratch-render/**"
-              - "packages/scratch-svg-renderer/**"
-              - "packages/scratch-vm/**"
+          filters: ./.github/path-filters.yml
 
-      - if: ${{ steps.filter.outputs.global == 'true' || steps.filter.outputs.any-workspace == 'true' }}
+      - if: ${{ steps.filter.outputs.any-workspace == 'true' }}
         uses: ./.github/actions/install-dependencies
 
       - name: Build packages
-        if: ${{ steps.filter.outputs.global == 'true' || steps.filter.outputs.any-workspace == 'true' }}
+        if: ${{ steps.filter.outputs.any-workspace == 'true' }}
         run: npm run build
 
-      - name: Test scratch-svg-renderer
-        if: ${{ !cancelled() && (steps.filter.outputs.global == 'true' || steps.filter.outputs.scratch-svg-renderer == 'true') }}
-        uses: ./.github/actions/test-package
+      - name: Store build artifacts
+        if: ${{ steps.filter.outputs.any-workspace == 'true' }}
+        uses: actions/upload-artifact@5d5d22a31266ced268874388b861e4b58bb5c2f3 # v4
         with:
-          package_name: scratch-svg-renderer
-      - name: Test scratch-render
-        if: ${{ !cancelled() && (steps.filter.outputs.global == 'true' || steps.filter.outputs.scratch-render == 'true') }}
-        uses: ./.github/actions/test-package
+          name: build
+          path: |
+            packages/**/build
+            packages/**/dist
+            packages/**/playground
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    if: ${{ needs.build.outputs.any-workspace == 'true' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        package: ${{ fromJSON(needs.build.outputs.packages) }}
+        exclude:
+          - package: global
+          - package: any-workspace
+    name: Test ${{ matrix.package }}
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4
         with:
-          package_name: scratch-render
-      - name: Test scratch-vm
-        if: ${{ !cancelled() && (steps.filter.outputs.global == 'true' || steps.filter.outputs.scratch-vm == 'true') }}
-        uses: ./.github/actions/test-package
+          cache: 'npm'
+          node-version-file: '.nvmrc'
+      - uses: ./.github/actions/install-dependencies
+      - uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4
         with:
-          package_name: scratch-vm
-      - name: Test scratch-gui
-        if: ${{ !cancelled() && (steps.filter.outputs.global == 'true' || steps.filter.outputs.scratch-gui == 'true') }}
-        uses: ./.github/actions/test-package
+          name: build
+          path: packages
+      - uses: ./.github/actions/test-package
         with:
-          package_name: scratch-gui
+          package_name: ${{ matrix.package }}

.github/workflows/commitlint.yml

@@ -0,0 +1,12 @@
+name: Lint commit messages
+on: [pull_request]
+
+concurrency:
+  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.sha }}"
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: wagoid/commitlint-github-action@9763196e10f27aef304c9b8b660d31d97fce0f99 # v5