name: formatting

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]

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

jobs:
  python:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        python-version: [3.8]

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install black
        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
    - name: black format
      run: |
        black --diff --check .

  cmake:
    runs-on: ubuntu-20.04

    steps:
    - uses: actions/checkout@v2
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y python3-pip
        python3 -m pip install cmake-format
    - name: cmake-format
      run: |
        set +e
        cmake-format -i $(find . -type f | egrep 'CMakeLists.txt|\.cmake$')
        if [ $(git diff | wc -l) -gt 0 ]; then
          echo -e "\nError! CMake code not formatted. Run cmake-format...\n"
          echo -e "\nFiles:\n"
          git diff --name-only
          echo -e "\nFull diff:\n"
          git diff
          exit 1
        fi

  source:
    runs-on: ubuntu-20.04

    steps:
    - uses: actions/checkout@v2
    - name: Install dependencies
      run: |
        DISTRIB_CODENAME=$(cat /etc/lsb-release | grep DISTRIB_CODENAME | awk -F '=' '{print $NF}')
        sudo apt-get update
        sudo apt-get install -y software-properties-common wget curl
        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
        echo "deb http://apt.llvm.org/${DISTRIB_CODENAME}/ llvm-toolchain-${DISTRIB_CODENAME}-11 main" | sudo tee -a /etc/apt/sources.list.d/llvm-toolchain.list
        echo "deb-src http://apt.llvm.org/${DISTRIB_CODENAME}/ llvm-toolchain-${DISTRIB_CODENAME}-11 main" | sudo tee -a /etc/apt/sources.list.d/llvm-toolchain.list
        sudo apt-get update
        sudo apt-get install -y clang-format-11
    - name: clang-format
      run: |
        set +e
        FILES=$(find include src examples -type f | egrep '\.hpp$|\.cpp$|\.cpp\.in$')
        FORMAT_OUT=$(clang-format-11 -output-replacements-xml ${FILES})
        RET=$(echo ${FORMAT_OUT} | grep -c '<replacement ')
        if [ "${RET}" -ne 0 ]; then
          echo -e "\nError! Code not formatted. Detected ${RET} lines\n"
          clang-format-11 -i ${FILES}
          git diff
          exit ${RET}
        fi