build.yml

name: CI

on: [
  push,
  pull_request,
  workflow_dispatch
]

env:
  LLVM_MINGW_VERSION: llvm-mingw-20240619-msvcrt-ubuntu-20.04-x86_64
  LLVM_MINGW_DOWNLOAD: https://github.com/mstorsjo/llvm-mingw/releases/download/20240619/llvm-mingw-20240619-msvcrt-ubuntu-20.04-x86_64.tar.xz

jobs:
  build-windows:
    runs-on: windows-latest

    strategy:
      fail-fast: false
      matrix:
        preset: [
          "clang-ue3-x86-release",
          "clang-ue4-x64-release",
          "msvc-ue3-x86-release",
          "msvc-ue4-x64-release",
        ]

    steps:
    - name: Setup Clang
      if: startswith(matrix.preset, 'clang')
      uses: egor-tensin/setup-clang@v1

    - name: Add MSVC to PATH
      if: startswith(matrix.preset, 'msvc')
      uses: TheMrMilchmann/setup-msvc-dev@v3
      with:
        arch: ${{ fromJSON('["x86", "x64"]')[contains(matrix.preset, 'x64')] }}

    - name: Setup CMake and Ninja
      uses: lukka/get-cmake@latest

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

    - name: Configure CMake
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      run: cmake . --preset ${{ matrix.preset }}

    - name: Build
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      run: cmake --build out/build/${{ matrix.preset }}

  build-ubuntu:
    # Require at least 24 for the mingw build
    runs-on: ubuntu-24.04

    strategy:
      fail-fast: false
      matrix:
        preset: [
          "clang-cross-ue3-x86-release",
          "clang-cross-ue4-x64-release",
          "llvm-mingw-ue3-x86-release",
          "llvm-mingw-ue4-x64-release",
          "mingw-ue3-x86-release",
          "mingw-ue4-x64-release",
        ]

    steps:
    - name: Setup CMake and Ninja
      uses: lukka/get-cmake@latest

    - name: Setup LLVM MinGW
      if: startswith(matrix.preset, 'llvm-mingw')
      run: |
        wget -nv ${{ env.LLVM_MINGW_DOWNLOAD }}
        tar -xf ${{ env.LLVM_MINGW_VERSION }}.tar.xz -C ~/
        echo $(readlink -f ~/${{ env.LLVM_MINGW_VERSION }}/bin) >> $GITHUB_PATH

    - name: Setup MinGW
      if: startswith(matrix.preset, 'mingw')
      uses: egor-tensin/setup-mingw@v2
      with:
        platform: ${{ fromJSON('["x86", "x64"]')[contains(matrix.preset, 'x64')] }}

    - name: Setup Clang
      if: startswith(matrix.preset, 'clang-cross')
      uses: egor-tensin/setup-clang@v1

    - name: Restore win sdk cache
      if: startswith(matrix.preset, 'clang-cross')
      uses: actions/cache@v4
      id: cache-win-sdk
      with:
        path: ~/win-sdk
        key: ${{ runner.os }}-win-sdk

    - name: Setup msitools
      if: startswith(matrix.preset, 'clang-cross') && steps.cache-win-sdk.outputs.cache-hit != 'true'
      uses: awalsh128/cache-apt-pkgs-action@latest
      with:
        packages: msitools
        version: ${{ runner.os }}-msitools

    - name: Setup win sdk
      if: startswith(matrix.preset, 'clang-cross') && steps.cache-win-sdk.outputs.cache-hit != 'true'
      run: |
        git clone https://github.com/mstorsjo/msvc-wine.git
        msvc-wine/vsdownload.py --accept-license --dest ~/win-sdk Microsoft.VisualStudio.Workload.VCTools
        msvc-wine/install.sh ~/win-sdk
        rm -r msvc-wine

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

    - name: Configure CMake
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      # The extra msvc wine arg won't do anything if we're not cross compiling
      run: >
        cmake .
        --preset ${{ matrix.preset }}
        -G Ninja
        -DMSVC_WINE_ENV_SCRIPT=$(readlink -f ~)/win-sdk/bin/${{ fromJSON('["x86", "x64"]')[contains(matrix.preset, 'x64')] }}/msvcenv.sh

    - name: Build
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      run: cmake --build out/build/${{ matrix.preset }}

# ==============================================================================

  clang-tidy:
    runs-on: windows-latest

    strategy:
      fail-fast: false
      matrix:
        preset: [
          "clang-ue3-x86-release",
          "clang-ue4-x64-release",
        ]

    steps:
    - name: Setup Clang
      if: startswith(matrix.preset, 'clang')
      uses: egor-tensin/setup-clang@v1

    - name: Setup CMake and Ninja
      uses: lukka/get-cmake@latest

    # Needed for clang tidy to enable `-export-fixes`
    - name: Install pyyaml
      run: pip install pyyaml

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

    - name: Configure CMake
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      run: cmake . --preset ${{ matrix.preset }} -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On

    - name: Remove `.modmap`s from compile commands
      run: |
        (Get-Content "out\build\${{ matrix.preset }}\compile_commands.json")    `
          -replace "@CMakeFiles.+?\.modmap", ""                                 `
        | Set-Content                                                           `
          -Path "out\build\${{ matrix.preset }}\compile_commands.json"

    - name: Run clang-tidy
      working-directory: ${{ env.GITHUB_WORKSPACE }}
      run: |
        python (Get-Command run-clang-tidy).Source                              `
          -p "out\build\${{ matrix.preset }}"                                   `
          -export-fixes clang-tidy-fixes.yml                                    `
          $([Regex]::Escape("$pwd\src") + ".+\.(c|cpp|h|hpp)$")

    - name: Process clang-tidy warnings
      uses: asarium/clang-tidy-action@v1
      with:
        fixesFile: clang-tidy-fixes.yml

  clang-format:
    runs-on: windows-latest

    steps:
    - name: Setup Clang
      if: startswith(matrix.preset, 'clang')
      uses: egor-tensin/setup-clang@v1

    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Run clang-format
      run: |
        clang-format                                                            `
          -n -Werror                                                            `
          $(Get-ChildItem                                                       `
              src                                                               `
              -File                                                             `
              -Recurse                                                          `
              -Include ("*.c", "*.cpp", "*.h", "*.hpp")                         `
            | % FullName)

  spelling:
    runs-on: ubuntu-latest

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

    - name: Check spelling
      uses: crate-ci/typos@master