Playground: Deploy Previews for Pull Requests

.github/workflows/deploy-preview.yml

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+name: Deploy Preview to Cloudflare Pages
+
+on:
+  pull_request:
+    types: [opened, synchronize, closed]
+
+concurrency:
+  group: preview-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    if: github.event.action != 'closed'
+    env:
+      GH_TOKEN: ${{ github.token }}
+
+    runs-on: ubicloud-standard-2
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "yarn"
+
+      - name: Add LLVM apt Repo
+        run: |-
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-21 main"
+          sudo apt update
+
+      - name: Install APT dependencies
+        run: xargs sudo apt-get install -y --no-install-recommends < Aptfile
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: bundle install
+        run: bundle install
+
+      - name: Render Templates
+        run: bundle exec rake templates
+
+      - name: Compile Herb
+        run: bundle exec rake make
+
+      - name: Yarn install
+        run: yarn install --frozen-lockfile
+
+      - name: Build tailwind-class-sorter package
+        run: yarn nx build @herb-tools/tailwind-class-sorter
+
+      - name: Build all JavaScript packages
+        run: yarn build
+
+      - name: Build docs site
+        run: cd docs && yarn build
+
+      - name: Upload docs artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: docs-preview
+          path: docs/.vitepress/dist
+          retention-days: 1
+
+  deploy-preview:
+    name: Deploy to Cloudflare Pages
+    needs: build
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      deployments: write
+      pull-requests: write
+
+    steps:
+      - name: Download docs artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: docs-preview
+          path: dist
+
+      - name: Deploy to Cloudflare Pages
+        id: deploy
+        uses: cloudflare/pages-action@v1
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          projectName: herb-tools
+          directory: dist
+          gitHubToken: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Add comment with preview URL
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const previewUrl = '${{ steps.deploy.outputs.url }}';
+            const comment = `## 🌿 Interactive Playground and Documentation Preview
+
+            A preview deployment has been built for this pull request. Try out the changes live in the interactive playground:
+
+            - **[Playground Preview](${previewUrl}/playground)**
+            - **[Documentation Preview](${previewUrl})**
+            - **[Website Preview](${previewUrl})**
+
+            ---
+            <sub>🌱 Grown from commit [\`${context.payload.pull_request.head.sha.substring(0, 7)}\`](https://github.com/${context.repo.owner}/${context.repo.repo}/commit/${context.payload.pull_request.head.sha})</sub>`;
+
+            const { data: comments } = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+            });
+
+            const botComment = comments.find(comment =>
+              comment.user.type === 'Bot' &&
+              comment.body.includes('🌿 Interactive Playground and Documentation Preview')
+            );
+
+            if (botComment) {
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: botComment.id,
+                body: comment
+              });
+            } else {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                body: comment
+              });
+            }
+
+  cleanup:
+    name: Cleanup preview deployment
+    if: github.event.action == 'closed'
+    runs-on: ubuntu-latest
+
+    permissions:
+      pull-requests: write
+
+    steps:
+      - name: Delete Cloudflare Pages deployment
+        run: |
+          DEPLOYMENTS=$(curl -s -X GET \
+            "https://api.cloudflare.com/client/v4/accounts/${{ secrets.CLOUDFLARE_ACCOUNT_ID }}/pages/projects/herb-tools/deployments" \
+            -H "Authorization: Bearer ${{ secrets.CLOUDFLARE_API_TOKEN }}" \
+            -H "Content-Type: application/json")
+
+          BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
+          DEPLOYMENT_ID=$(echo "$DEPLOYMENTS" | jq -r ".result[] | select(.deployment_trigger.metadata.branch == \"$BRANCH_NAME\") | .id" | head -n 1)
+
+          if [ -n "$DEPLOYMENT_ID" ]; then
+            echo "Deleting deployment $DEPLOYMENT_ID for branch $BRANCH_NAME"
+            curl -X DELETE \
+              "https://api.cloudflare.com/client/v4/accounts/${{ secrets.CLOUDFLARE_ACCOUNT_ID }}/pages/projects/herb-tools/deployments/$DEPLOYMENT_ID" \
+              -H "Authorization: Bearer ${{ secrets.CLOUDFLARE_API_TOKEN }}" \
+              -H "Content-Type: application/json"
+          else
+            echo "No deployment found for branch $BRANCH_NAME"
+          fi
+
+      - name: Update PR comment
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const { data: comments } = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+            });
+
+            const botComment = comments.find(comment =>
+              comment.user.type === 'Bot' &&
+              comment.body.includes('🌿 Interactive Playground and Documentation Preview')
+            );
+
+            if (botComment) {
+              const updatedComment = botComment.body + '\n\n---\n\n✅ Preview deployment has been cleaned up.';
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: botComment.id,
+                body: updatedComment
+              });
+            }