name: LLVM

on:
    workflow_dispatch:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-22.04, macos-13]
        platform: [x64, arm64]
        build-cfg: [Debug, DebugOpt, Release]

    runs-on: ${{ matrix.os }}

    env:
      CC: ${{ startsWith(matrix.os, 'ubuntu') && 'gcc-11' || 'clang' }}
      CXX: ${{ startsWith(matrix.os, 'ubuntu') && 'g++-11' || 'clang++' }}
      PLATFORM: ${{ matrix.platform }}
      BUILD_CONFIGURATION: ${{ matrix.build-cfg }}
      ACTIONS_ALLOW_UNSECURE_COMMANDS: true

    steps:
      - uses: actions/checkout@v4
      - uses: lukka/get-cmake@latest

      - name: Install cross compilers
        if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.platform, 'arm64')
        run: sudo apt install -y g++-aarch64-linux-gnu gcc-aarch64-linux-gnu

      - name: Clone LLVM
        shell: bash
        run: build/build.sh clone_llvm
          
      - name: Build LLVM
        shell: bash
        run: build/build.sh build_llvm -platform $PLATFORM -configuration $BUILD_CONFIGURATION

      - name: Package LLVM
        shell: bash
        run: build/build.sh package_llvm -platform $PLATFORM -configuration $BUILD_CONFIGURATION

      - name: 'Upload Artifact'
        uses: actions/upload-artifact@v4
        with:
          name: llvm-${{ matrix.os }}-${{ matrix.platform }}-${{ matrix.build-cfg }}
          overwrite: true
          path: build/llvm/llvm-*-*.*