name: Validation

on:
  pull_request:
    branches:
      - '*'
  push:
    tags:
      - '*'

env:
  CACHE_VERSION: 1

jobs:
  clang-format:
    name: "clang-format"
    runs-on: ubuntu-20.04
    env:
      CC: clang
      CXX: clang++
      CMAKE_GENERATOR: "Ninja"
    steps:
    - name: "Clone"
      uses: actions/checkout@v2
      with:
        submodules: recursive
        fetch-depth: 0

    - name: "Prerequisites: Apt-Get"
      shell: bash
      run: |
        sudo apt-get -qq update
        sudo apt-get purge libjpeg9-dev:amd64 libjpeg8-dev:amd64 libjpeg-turbo8-dev:amd64
        sudo apt-get install \
          build-essential \
          checkinstall \
          pkg-config \
          cmake \
          ninja-build \
          git \
          ${{ matrix.packages }} \
          qt5-default libqwt-qt5-dev libqt5svg5-dev \
          libavcodec-dev libavdevice-dev libavfilter-dev libavformat-dev libavutil-dev libswresample-dev libswscale-dev \
          libcurl4-openssl-dev
        sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"

    - name: "Dependencies: Cache"
      if: ${{ github.event_name != 'pull_request' }}
      uses: actions/cache@v2
      with:
        path: |
          build/temp/autodeps
        key: autodeps-${{ matrix.id }}-${{ env.CACHE_VERSION }}

    - name: "StreamFX: Configure"
      shell: bash
      run: |
        cmake -H. -B"build/temp" \
          -DCMAKE_BUILD_TYPE=RelWithDebInfo \
          -DCMAKE_INSTALL_PREFIX="build/distrib" \
          -DCMAKE_PACKAGE_NAME="streamfx-${{ matrix.id }}" \
          -DCMAKE_PACKAGE_PREFIX="build/package" \
          -DENABLE_CLANG=TRUE

    - name: "StreamFX: Format"
      shell: bash
      run: |
        cmake --build "build/temp" --config RelWithDebInfo --target StreamFX_CLANG-FORMAT

    - name: "Validate Formatting"
      shell: bash
      run: |
        git --no-pager diff --patch --minimal HEAD --
        git update-index --refresh
        git diff-index --quiet HEAD --