name: code-format

on: [push, pull_request, pull_request_target]

concurrency:
  group: code-format-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  code-format:
    permissions:
      contents: write  # for stefanzweifel/git-auto-commit-action to push code in repo
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v4

    - name: cache-clang-format
      id: cache-clang-format
      uses: actions/cache@v3
      with:
        path: clang-format-install
        key: clang-format-install-4
    - name: clang-format
      if: steps.cache-clang-format.outputs.cache-hit != 'true'
      run: |
        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/llvm-project-10.0.1.tar.xz
        tar -xf llvm-project-10.0.1.tar.xz
        cd llvm-project-10.0.1
        mkdir build
        cd build
        cmake -DCMAKE_INSTALL_PREFIX=install -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DLLVM_ENABLE_PROJECTS="clang" -DLLVM_TARGETS_TO_BUILD="" -DLLVM_INCLUDE_EXAMPLES=OFF -DLLVM_INCLUDE_TESTS=OFF -DLLVM_INCLUDE_DOCS=OFF ../llvm/
        make -j2 clang-format
        mkdir $GITHUB_WORKSPACE/clang-format-install
        cp -r bin/clang-format $GITHUB_WORKSPACE/clang-format-install
        cd ../../
        rm -rf llvm-project-10.0.1
        rm llvm-project-10.0.1.tar.xz

    - name: astyle
      run: |
        sudo apt-get update
        sudo apt-get install -y astyle

    - name: code-format
      run: |
        mkdir -p ~/bin
        mv $GITHUB_WORKSPACE/clang-format-install/clang-format ~/bin/clang-format
        rm -rf $GITHUB_WORKSPACE/clang-format-install
        export PATH=~/bin:$PATH
        sh codeformat.sh
    - uses: stefanzweifel/git-auto-commit-action@v4
      with:
        commit_message: apply code-format changes

    - name: restore-clang-format-cache
      run: |
        mkdir $GITHUB_WORKSPACE/clang-format-install
        cp -r ~/bin/clang-format $GITHUB_WORKSPACE/clang-format-install