name: Python code format
on: 
  push:
    branches: master
jobs:
  Format:
    if: "contains(github.event.head_commit.message, '!format')"
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
    steps:
      - uses: actions/checkout@main
      - name: Set up Python
        uses: actions/setup-python@main
        with:
          python-version: 3.x
      - uses: actions/cache@main
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-format
          restore-keys: |
            ${{ runner.os }}-pip-format
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install autopep8 pycodestyle
      - name: Format by autopep8 then Push
        env:
          GIT_EMAIL: github-actions[bot]@users.noreply.github.com
          GIT_ACTOR: github-actions[bot]
        run: |
          export HASH_SHORT=$(git rev-parse --short HEAD)
          git checkout -b format--${HASH_SHORT}
          git config --global user.email $GIT_EMAIL
          git config --global user.name  $GIT_ACTOR
          python -m autopep8 --in-place --aggressive --aggressive --experimental -r ./
          git add -A
          git commit -m 'Format by autopep8' -m From: -m $(git rev-parse HEAD)
          git push --set-upstream origin format--${HASH_SHORT}