ci.yml

name: CI

on:
  push:
    branches:
      - master
    paths-ignore:
      - 'ACKNOWLEDGMENTS'
      - 'AUTHORS'
      - 'COPYING'
      - 'COPYING_ADDENDUM'
      - 'docs/**'
      - 'README.md'
  pull_request:
    branches:
      - master
    paths-ignore:
      - 'ACKNOWLEDGMENTS'
      - 'AUTHORS'
      - 'COPYING'
      - 'COPYING_ADDENDUM'
      - 'docs/**'
      - 'README.md'

jobs:
  format:
    runs-on: ubuntu-latest

    env:
      CLANG_FORMAT_VERSION: 13

    steps:
      - name: Checkout source
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}
          submodules: true

      - name: Install package dependencies
        run: sudo apt-get install -y clang-format-${{ env.CLANG_FORMAT_VERSION }}

      - name: Set git configuration
        run: git config --global clangFormat.binary clang-format-${{ env.CLANG_FORMAT_VERSION }}

      - name: Check formatting (push to feature branch)
        if: github.ref != 'refs/heads/master' && github.event_name == 'push'
        run: test/scripts/gh_format.sh origin/master

      - name: Check formatting (push to master branch or pull request merge)
        if: github.ref == 'refs/heads/master' && github.event_name == 'push'
        run: test/scripts/gh_format.sh ${{ github.event.before }}

      - name: Check formatting (pull request)
        if: github.event_name == 'pull_request'
        run: test/scripts/gh_format.sh origin/${{ github.base_ref }}