ci: test preview job

.github/workflows/docs-preview.yml

@@ -0,0 +1,63 @@
+name: Docs Preview
+on:
+  pull_request_target:
+    branches: ["main"]
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+concurrency:
+  group: "pages-preview @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  cancel-in-progress: false
+jobs:
+  build:
+    permissions:
+      contents: read
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          fetch-depth: 0
+      - name: Setup Pages
+        uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: latest
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+          cache: pnpm
+
+      - name: Install & build
+        working-directory: docs
+        run: |
+          pnpm i
+          pnpm build
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3
+
+  deploy:
+    environment:
+      name: "Pages Preview"
+      url: ${{ steps.deployment.outputs.page_url }}
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4
+        with:
+          preview: "true"
+      - name: Output to summary
+        run: |
+          echo 'Deployed preview to: ${{ steps.deployment.outputs.page_url }}' >> $GITHUB_STEP_SUMMARY

.github/workflows/documentation.yml

@@ -63,3 +63,21 @@ jobs:
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4 # or specific "vX.X.X" version tag for this action
+
+  deploy-preview:
+    if: github.event_name == 'pull_request' && github.ref == 'refs/heads/main'
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4
+        with:
+          preview: "true"
+      - name: Output to summary
+        run: |
+          echo 'Deployed preview to: ${{ steps.deployment.outputs.page_url }}' >> $GITHUB_STEP_SUMMARY