pre-commit.yaml

name: Lint and format

on:
  pull_request:
    branches:
      - main

jobs:
  check_if_branch_is_ahead_of_main:
    runs-on: ubuntu-latest
    steps:
      - name: Git checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Check if branch is ahead of main
        run: |
          if ! git merge-base --is-ancestor origin/main ${{ github.event.pull_request.head.sha }};
          then echo "This branch is not up to date with main";
          exit 1; fi

  test:
    needs: check_if_branch_is_ahead_of_main
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: ${{ github.event.pull_request.head.ref }}

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
          python-version: '3.10'

    - name: Changed files
      id: changed_files
      uses: tj-actions/changed-files@v44

    - uses: pre-commit/action@v3.0.1
      with:
        extra_args: --files ${{ steps.changed_files.outputs.all_changed_files }}