formatting.yml

name: code formatting

on:
  push:
    branches:
      - main
      - devel
  pull_request:


jobs:
  build:
    name: Auto format with clang 18
    runs-on: ubuntu-24.04

    steps:
    - name: checkout
      uses: actions/checkout@v4
    - name: install packages
      run: sudo apt install clang-18
    - name: run clang format
      run: |
        ./do_clang_format.sh
    - name: check for differences
      run: |
        git diff >clang-format.patch
        if [ $(wc -c <clang-format.patch) -ne 0 ] ; then
           echo "there was a formatting issue."
           cat /etc/os-release
           echo "you may download the artifact and apply it with git apply"
           cat clang-format.patch
           exit 1
        else
           rm clang-format.patch
        fi
    - name: store patch as artifact if there is one
      if: failure()
      uses: actions/upload-artifact@v4
      with:
        name: clang-format.patch
        path: clang-format.patch
        if-no-files-found: ignore