o2-linter.yml

---
# Find issues in O2 code
name: O2 linter

'on': [pull_request, push]
permissions: {}
env:
  MAIN_BRANCH: master

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
  cancel-in-progress: true

jobs:
  o2-linter:
    name: O2 linter
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # needed to get the full history
      - name: Run tests
        run: |
          # Diff against the common ancestor of the source branch and the main branch.
          readarray -t files < <(git diff --diff-filter d --name-only origin/${{ env.MAIN_BRANCH }}...)
          if [ ${#files[@]} -eq 0 ]; then
              echo "::notice::No files to lint."
              exit 0
          fi
          [ ${{ github.event_name }} == 'pull_request' ] && options="-g"
          # shellcheck disable=SC2086 # Ignore unquoted options.
          python3 Scripts/o2_linter.py $options "${files[@]}"
          echo "Tip: If you allow actions in your fork repository, O2 linter will run when you push commits."