clang-format.yml

name: clang-format

on:
  push:
    branches: [ master, litepcie-update ]
  pull_request:

jobs:
  build:
    runs-on: [ubuntu-latest]

    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 0

    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -qq clang-format colordiff

    - name: Run clang-format
      run: |
        before="${{ github.event.pull_request.base.sha }}"
        if [ "$before" == "" ]; then
          before="${{ github.event.before }}"
        fi

        diff=$(git-clang-format --diff --commit "$before")
        [ "$diff" = "no modified files to format" ] && exit 0
        [ "$diff" = "clang-format did not modify any files" ] && exit 0

        printf "\033[1mYou have introduced coding style breakages, suggested changes:\n\n"

        echo "$diff" | colordiff
        exit 1