name: analyzer

on:
  push:
    branches:
      - master
      - wip

jobs:

  iwyu:
    timeout-minutes: 30

    env:
      IWYU: 0.19
      LLVM: 15

    runs-on: ubuntu-latest
    continue-on-error: true

    steps:
    - uses: actions/checkout@v3
    - name: Install llvm/clang
      # see: https://apt.llvm.org/
      run: |
        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
        sudo add-apt-repository "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-$LLVM main"
        sudo apt update
        sudo apt remove -y "llvm*"
        sudo apt remove -y "libclang-dev*"
        sudo apt remove -y "clang*"
        sudo apt install -y llvm-$LLVM-dev
        sudo apt install -y libclang-$LLVM-dev
        sudo apt install -y clang-$LLVM
    - name: Compile iwyu
      # see: https://github.com/include-what-you-use/include-what-you-use
      working-directory: build
      run: |
        git clone https://github.com/include-what-you-use/include-what-you-use.git --branch $IWYU --depth 1
        mkdir include-what-you-use/build
        cd include-what-you-use/build
        cmake -DCMAKE_C_COMPILER=clang-$LLVM \
              -DCMAKE_CXX_COMPILER=clang++-$LLVM \
              -DCMAKE_INSTALL_PREFIX=./ \
              ..
        make -j4
        bin/include-what-you-use --version
    - name: Compile tests
      working-directory: build
      run: |
        export PATH=$PATH:${GITHUB_WORKSPACE}/build/include-what-you-use/build/bin
        cmake -DCMAKE_C_COMPILER=clang-$LLVM \
              -DCMAKE_CXX_COMPILER=clang++-$LLVM \
              -DENTT_BUILD_TESTING=ON \
              -DENTT_BUILD_BENCHMARK=ON \
              -DENTT_BUILD_EXAMPLE=ON \
              -DENTT_BUILD_LIB=ON \
              -DENTT_BUILD_SNAPSHOT=ON \
              -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE="include-what-you-use;-Xiwyu;--mapping_file=${GITHUB_WORKSPACE}/entt.imp;-Xiwyu;--no_fwd_decls;-Xiwyu;--verbose=1" \
              ..
        make -j4