check_code_formating.yml

name: Clang-Format 21 Check

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

jobs:
  clang-format:
    runs-on: ubuntu-22.04

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        submodules: recursive

    - name: Install clang-format 21 via LLVM APT repo
      run: |
        # Import LLVM GPG key properly
        wget -qO - https://apt.llvm.org/llvm-snapshot.gpg.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/llvm-snapshot.gpg > /dev/null

        # Add LLVM repo for clang-format 21 (Debian bullseye repo works on Ubuntu 22.04)
        echo "deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-21 main" | sudo tee /etc/apt/sources.list.d/llvm-21.list

        # Update package lists
        sudo apt-get update --allow-releaseinfo-change

        # Install clang-format 21
        sudo apt-get install -y clang-format-21

        # Set clang-format 21 as default
        sudo update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-21 210
        sudo update-alternatives --set clang-format /usr/bin/clang-format-21

        # Verify
        clang-format --version

    - name: Run clang-format check
      run: python3 check_clang_format.py