format-code.yml

name: Format Code

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  format:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          repository: ${{ github.repository }}
          token: ${{ github.token }}

      - name: Set up Python 3.8
        uses: actions/setup-python@v2
        with:
          python-version: 3.8

      - name: Setup dependencies
        run: |
          pip install --upgrade yapf==0.30.0 isort

      - name: Format code
        run: |
          yapf --verbose --recursive --in-place --parallel .
          isort .

      - name: Check for modified files
        id: git-check
        run: echo ::set-output name=modified::$(if git diff-index --quiet HEAD --; then echo "false"; else echo "true"; fi)

      - name: Push changes
        if: steps.git-check.outputs.modified == 'true'
        run: |
          git config --global user.name 'github-actions'
          git config --global user.email 'github-actions@github.com'
          git add .
          git commit -am "Format code."
          git push