chore: add workflow for versioning/publishing blockly

.github/workflows/build.yml

@@ -3,7 +3,9 @@
 
 name: Node.js CI
 
-on: [pull_request]
+on:
+  pull_request:
+  workflow_call:
 
 permissions:
   contents: read

.github/workflows/publish.yml

@@ -0,0 +1,93 @@
+name: Publish to npm
+
+on:
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Dry run'
+        required: false
+        default: false
+        type: boolean
+
+permissions:
+  contents: write
+  id-token: write
+
+jobs:
+  ci:
+    uses: ./.github/workflows/build.yml
+
+  publish:
+    needs: ci
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 22.x
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Determine version bump
+        id: bump
+        working-directory: packages/blockly
+        run: |
+          RELEASE_TYPE=$(npx conventional-recommended-bump --preset conventionalcommits)
+          echo "release_type=$RELEASE_TYPE" >> "$GITHUB_OUTPUT"
+          echo "Recommended bump: $RELEASE_TYPE"
+
+      - name: Apply version bump
+        working-directory: packages/blockly
+        run: npm version ${{ steps.bump.outputs.release_type }} --no-git-tag-version
+
+      - name: Read new version
+        id: version
+        working-directory: packages/blockly
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "New version: $VERSION"
+
+      - name: Commit and push version bump
+        if: ${{ !inputs.dry_run }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add packages/blockly/package.json package-lock.json
+          git commit -m "chore: release v${{ steps.version.outputs.version }}"
+          git push
+
+      - name: Build package
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        run: npm run package
+
+      - name: Publish to npm
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly/dist
+        run: npm publish
+
+      - name: Create tarball
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        run: npm pack ./dist
+
+      - name: Create GitHub release
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TARBALL=$(ls blockly-*.tgz)
+          gh release create "blockly-v${{ steps.version.outputs.version }}" "$TARBALL" \
+            --repo "$GITHUB_REPOSITORY" \
+            --title "blockly-v${{ steps.version.outputs.version }}" \
+            --generate-notes

packages/blockly/package.json

@@ -111,6 +111,8 @@
     "async-done": "^2.0.0",
     "chai": "^6.0.1",
     "concurrently": "^9.0.1",
+    "conventional-changelog-conventionalcommits": "^7.0.2",
+    "conventional-recommended-bump": "^11.2.0",
     "eslint": "^9.15.0",
     "eslint-config-google": "^0.14.0",
     "eslint-config-prettier": "^10.1.1",