name: Auto Format

on:
  pull_request:
    types: [opened, synchronize]

jobs:
  autoformat:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.head_ref }}
    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: '3.10'
    - uses: actions/cache@v2
      id: cache
      with:
        path: ${{ env.pythonLocation }}
        key: ${{ runner.os }}-python-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml') }}-v01
    - name: Install Flit
      if: steps.cache.outputs.cache-hit != 'true'
      run: pip install flit
    - name: Install Dependencies
      if: steps.cache.outputs.cache-hit != 'true'
      run: flit install --symlink
    - uses: actions/cache@v2
      id: pre-commit-hooks-cache
      with:
        path: ~/.cache/pre-commit
        key: ${{ runner.os }}-pre-commit-hooks-${{ hashFiles('.pre-commit-config.yaml') }}-v01
    - name: Run pre-commit
      run: pre-commit run --all-files
    - name: Commit pre-commit changes
      if: failure()
      run: |
        git config --global user.name "pre-commit"
        git config --global user.email github-actions@github.com
        git add --update
        git commit -m "🎨 Format code with pre-commit"
        git push