clang-format.yml

name: Clang Format Check

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

jobs:
  clang-format-check:
    runs-on: ubuntu-24.04

    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Set up clang-format
      run: |
        sudo apt-get update
        sudo apt-get install -y clang-format

    - name: Download Linux kernel .clang-format
      run: |
        curl -o .clang-format https://raw.githubusercontent.com/torvalds/linux/master/.clang-format

    - name: Run clang-format and check code style
      run: |
        for file in $(ls src/*.[ch]); do
          diff=$(clang-format -style=file "$file" | diff "$file" -)
          echo "DIFF $diff"
          if [ ! -z "$diff" ]; then
            echo "Style issues in $file:" >> clang-format-diff.txt
            clang-format -style=file "$file" | diff -u "$file" - >> clang-format-diff.txt
          fi
        done
        echo "CIAOOA"
        if [ -f clang-format-diff.txt ]; then
          echo "ERROR in format"
          echo "\nThe following files have style issues:" && cat clang-format-diff.txt
          echo "\nRun clang-format -i src/*.[ch] in order to fix" >> $GITHUB_OUTPUT
          exit 1
        else
          echo "NO ERRORS"
        fi

    - name: Upload clang-format diff artifact
      if: failure()
      uses: actions/upload-artifact@v3
      with:
        name: clang-format-diff
        path: countdown/clang-format-diff.txt