Github action could return number of changed/formatted files #3526

name: Formatting

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

jobs:
  black:
    runs-on: ubuntu-latest
    name: Format python
    
    steps:
    - name: Check out
      uses: actions/checkout@v3

    - name: Set up Python 3.10
      uses: actions/setup-python@v4
      with:
        python-version: "3.10"

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install black autopep8 isort
        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi

    - name: Format with black
      id: action_black
      uses: psf/black@stable
      with:
        options: "--verbose"
        src: "./src"

    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v4
      with:
        title: "Format Python code with psf/black push"
        commit-message: "Format Python code with psf/black"
        body: "Format Python code with psf/black"
        base: main
        branch: black-format-github-action
        delete-branch: true