Automate dist regeneration for Rolldown updates

.github/workflows/update-renovate-dist.yml

@@ -0,0 +1,114 @@
+name: Update Renovate dist
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches:
+      - main
+    paths:
+      - package.json
+      - pnpm-lock.yaml
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    if: >-
+      github.event.pull_request.user.login == 'renovate[bot]' &&
+      github.event.pull_request.user.id == 29139614 &&
+      github.event.pull_request.head.repo.full_name == github.repository &&
+      startsWith(github.event.pull_request.head.ref, 'renovate/rolldown-')
+    runs-on: ubuntu-latest
+    outputs:
+      changed: ${{ steps.diff.outputs.changed }}
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version-file: .node-version
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Rebuild dist
+        run: pnpm run all
+
+      - name: Check generated files
+        id: diff
+        shell: bash
+        run: |
+          if git diff --quiet -- dist/; then
+            echo "changed=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Upload generated dist
+        if: steps.diff.outputs.changed == 'true'
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: renovate-dist-${{ github.run_id }}
+          path: dist/
+          retention-days: 1
+
+  update:
+    needs: build
+    if: needs.build.outputs.changed == 'true'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          fetch-depth: 0
+          persist-credentials: true
+
+      - name: Verify pull request head
+        shell: bash
+        env:
+          EXPECTED_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          if [ "$(git rev-parse HEAD)" != "$EXPECTED_HEAD_SHA" ]; then
+            echo "The pull request branch changed while dist was being generated."
+            echo "A newer workflow run will regenerate dist for the new head."
+            exit 1
+          fi
+
+      - name: Download generated dist
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: renovate-dist-${{ github.run_id }}
+          path: dist/
+
+      - name: Commit generated dist
+        shell: bash
+        env:
+          HEAD_BRANCH: ${{ github.event.pull_request.head.ref }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add dist/
+
+          if git diff --cached --quiet; then
+            echo "Generated dist is already up to date."
+            exit 0
+          fi
+
+          git commit -m "Regenerate dist for Rolldown update"
+          git push origin "HEAD:$HEAD_BRANCH"

renovate.json5

@@ -20,6 +20,15 @@
         '/@actions/cache/',
       ],
     },
+    {
+      automerge: false,
+      matchManagers: [
+        'npm',
+      ],
+      matchPackageNames: [
+        'rolldown',
+      ],
+    },
     {
       groupName: 'Android Gradle Plugin',
       matchPackageNames: [