update-biome-schema.yml

name: Update Biome schema

on:
  pull_request:
    types: [opened, synchronize]

jobs:
  update-biome-schema:
    # Only run when Dependabot opens a biome-specific PR.
    # Dependabot branch names for this package look like:
    # dependabot/npm_and_yarn/biomejs/biome-2.4.12
    if: github.actor == 'dependabot[bot]' && contains(github.head_ref, 'biomejs/biome')
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout PR branch
        uses: actions/checkout@v7
        with:
          ref: ${{ github.head_ref }}
          # A personal access token is used (rather than the default GITHUB_TOKEN)
          # so that the commit pushed below triggers other workflows (e.g. accented.yml).
          # Pushes authenticated with the default GITHUB_TOKEN don't trigger workflow runs:
          # https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/triggering-a-workflow#triggering-a-workflow-from-a-workflow
          # The token is stored as a Dependabot secret (not an Actions secret) because
          # workflows triggered by Dependabot can only access secrets scoped to Dependabot.
          token: ${{ secrets.PERSONAL_GITHUB_TOKEN_DEPENDABOT }}

      - name: Extract new biome version
        id: version
        run: |
          VERSION=$(node -e "const {default: pkg} = await import('./package.json', {with: {type: 'json'}}); console.log(pkg.devDependencies['@biomejs/biome'].replace(/[^0-9.]/g, ''))")
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Update biome.json schema URL
        run: |
          sed -i "s|https://biomejs.dev/schemas/[^/]*/schema.json|https://biomejs.dev/schemas/${{ steps.version.outputs.version }}/schema.json|" biome.json

      - name: Commit and push if changed
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add biome.json
          git commit -m "Update biome.json schema to ${{ steps.version.outputs.version }}"
          git push