main.yaml

name: main

on:
  pull_request:

env:
  # libcxx version to match whats already installed
  # https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2404-Readme.md
  LLVM_VERSION: '18.1.3'
  CPP2B_LIBCXX_BUILD_ROOT: '/tmp/llvm-project/build'

jobs:
  typos-check:
    name: Typos Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: crate-ci/typos@cfe759ac8dd421e203cc293a373396fbc6fe0d4b # v1.22.7

  build-script-windows:
    name: 'build.cmd'
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4
      - run: .\build.cmd
      - uses: actions/upload-artifact@v4
        with:
          name: cpp2b.exe
          path: dist/debug/cpp2b.exe
          if-no-files-found: error
          retention-days: 0

  build-self-windows:
    name: 'build self (windows)'
    needs: build-script-windows
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: 'cpp2b.exe'
      - run: .\cpp2b.exe build
      - run: Copy-Item .\.cache\cpp2\bin\cpp2b.exe -Destination .\cpp2b-self.exe
      - run: .\cpp2b-self.exe build

  build-script-linux:
    name: 'build.sh'
    runs-on: ubuntu-24.04
    steps:
      - run: sudo apt-get install libclang-dev ninja-build -y
      - uses: actions/cache@v4
        id: libcxx_with_modules
        with:
          path: /tmp/llvm-project/build
          key: 'libcxx-${{ env.LLVM_VERSION }}'
      - name: compiling libcxx ${{ env.LLVM_VERSION }} with modules
        if: steps.libcxx_with_modules.outputs.cache-hit != 'true'
        run: |
          git clone --depth 1 --branch llvmorg-${{ env.LLVM_VERSION }} https://github.com/llvm/llvm-project.git /tmp/llvm-project
          cd /tmp/llvm-project
          mkdir build
          CC=clang-18 CXX=clang++-18 cmake -G Ninja -S runtimes -B build -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind"
          ninja -C build
      - uses: actions/checkout@v4
      - run: CC=clang-18 ./build.sh
      - uses: actions/upload-artifact@v4
        with:
          name: cpp2b
          path: dist/debug/cpp2b
          if-no-files-found: error
          retention-days: 0

  build-self-linux:
    name: 'build self (linux)'
    needs: build-script-linux
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/cache/restore@v4
        with:
          path: /tmp/llvm-project/build
          key: 'libcxx-${{ env.LLVM_VERSION }}'
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: cpp2b
      - run: chmod +x cpp2b
      - run: ./cpp2b build
      - run: ./.cache/cpp2/bin/cpp2b build

  build-examples:
    name: build examples
    needs: [build-script-windows, build-script-linux]
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        example:
          - init
        os:
          - windows-latest
          - ubuntu-24.04
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        id: cpp2b-binary
        with:
          name: 'cpp2b-${{ matrix.os }}'
      - uses: actions/cache/restore@v4
        if: "'${{ matrix.os }}' == 'ubuntu-24.04'"
        with:
          path: /tmp/llvm-project/build
          key: 'libcxx-${{ env.LLVM_VERSION }}'
      - run: '${{ steps.cpp2b-binary.outputs.download-path }} build'
        working-directory: "examples/${{ matrix.example }}"