black.yml

name: Black Code Formatter

on: [push, pull_request]

jobs:
  black:
    runs-on: ubuntu-latest

    steps:
      - name: Check out code
        uses: actions/checkout@v6

      - name: Get changed Python files
        id: changed-py-files
        uses: tj-actions/changed-files@v47
        with:
          files: |
            **.py

      - name: Set up Python
        if: steps.changed-py-files.outputs.any_changed == 'true'
        uses: actions/setup-python@v6
        with:
          python-version: "3.11"

      - name: Install Black
        if: steps.changed-py-files.outputs.any_changed == 'true'
        run: |
          python -m pip install --upgrade pip
          pip install black

      - name: Check Black Formatting
        if: steps.changed-py-files.outputs.any_changed == 'true'
        run: black --check ${{ steps.changed-py-files.outputs.all_changed_files }}