format_black.yml

# This workflow will checkout the branch of the PR, apply black formatting and commit the result to the PR. Does not work for forks.

name: Format black

on:
  pull_request:
    types: [labeled]

jobs:
  build:
    if: contains(github.event.pull_request.labels.*.name, 'format_black' )
    
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        token: ${{ secrets.DEPENDABOT_WORKFLOW_TOKEN }}
        ref: ${{ github.event.pull_request.head.ref }} # Check out the head of the actual branch, not the PR
        fetch-depth: 0 # otherwise, you will fail to push refs to dest repo
    - name: format black
      uses: psf/black@stable
      with:
        options: ""
        src: "./pylammpsmpi"
    - name: commit
      run: |
        git config --local user.email "pyiron@mpie.de"
        git config --local user.name "pyiron-runner"
        git commit -m "Format black" -a
    - name: push
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.DEPENDABOT_WORKFLOW_TOKEN }}
        branch: ${{ github.event.pull_request.head.ref }}