lint.yml

name: Lint
on: [push, pull_request]
env:
  PYTHON_VERSION: "3.10"

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    permissions:
      contents: read

    # We want to run on external PRs, but not on our own internal PRs as they'll be run
    # by the push to the branch. This prevents duplicated runs on internal PRs.
    # Some discussion of this here:
    # https://github.community/t/duplicate-checks-on-push-and-pull-request-simultaneous-event/18012
    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository

    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install Poetry
        uses: ThePalaceProject/circulation/.github/actions/poetry@main
        with:
          version: "1.7.1"

      - name: Install Pre-commit
        run: |
          poetry install --only ci
        env:
          POETRY_VIRTUALENVS_CREATE: false

      - name: Restore pre-commit cache
        uses: actions/cache@v4
        with:
          path: ~/.cache/pre-commit
          key: pre-commit-${{ runner.os }}-py${{ env.PYTHON_VERSION }}-${{ hashFiles('.pre-commit-config.yaml') }}
          restore-keys: pre-commit-${{ runner.os }}-py${{ env.PYTHON_VERSION }}

      - name: Lint
        run: pre-commit run --all-files --show-diff-on-failure