name: Compare Build Output
on:
  pull_request:

concurrency: ${{ github.workflow }}-${{ github.ref }}

jobs:
  comparebuildoutput:
    name: Compare Build Output
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v5
        with:
          # Fetch entire git history so we have the parent commit to compare against
          fetch-depth: 0
      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ">=23.6.0"
      - name: Install dependencies (with cache)
        uses: bahmutov/npm-install@v1

      - name: Run comparison script
        id: attw
        run: ./config/compare-build-output-to.sh $(git merge-base HEAD origin/${{ github.base_ref }}) | tee $GITHUB_STEP_SUMMARY
        env:
          RUNNER_TEMP: ${{ runner.temp }}