99-auto-format-dependabot-prettier-updates.yml

name: Auto-Format with Prettier on PR for "self-healing" PRs

on:
  workflow_call:

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{github.event.pull_request.head.ref}}
          fetch-depth: 0

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: '.nvmrc'

      - name: Install dependencies
        run: |
          npm ci

      - name: Check if Prettier update PR
        id: check_pr
        run: |
          echo "PR title: ${{ github.event.pull_request.title }}"
          if [[ "${{ github.event.pull_request.title }}" =~ "bump prettier from" ]]; then
            echo "Prettier update detected."
            echo "prettier_update=true" >> $GITHUB_ENV
          else
            echo "No Prettier update detected."
            echo "prettier_update=false" >> $GITHUB_ENV
          fi

      - name: Run Prettier to format the code
        if: env.prettier_update == 'true'
        run: |
          npx --no prettier . --write

      - name: Commit changes if formatting is done
        if: env.prettier_update == 'true'
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

          git add .
          git commit --all -m "Auto-format codebase with Prettier" || echo "No changes to commit"
          git push origin HEAD:${{ github.head_ref }}  # Push back to the same PR branch