name: CI

# The compiler is written in Finch. It is built from bootstrap/<system>.ll, its own LLVM IR (see bootstrap/README.md),
# then from itself. Linux x86-64 and ARM64 have seeds; macOS and Windows machines can't build the compiler yet
# (programs for them are built from Linux with --target, and tested here under Wine and qemu).

on:
  push:
    branches: [main, "ci/**"]
    tags: ["v*"]
  pull_request:

jobs:
  linux:
    strategy:
      fail-fast: false
      matrix:
        include:
          - { os: ubuntu-24.04, arch: x64 }
          - { os: ubuntu-24.04-arm, arch: arm64 }
    name: linux-${{ matrix.arch }}
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - name: Install clang 21, libclang, tools
        run: |
          wget -q https://apt.llvm.org/llvm.sh
          sudo bash llvm.sh 21
          sudo apt-get install -y libclang-21-dev pkg-config valgrind
          echo "/usr/lib/llvm-21/bin" >> $GITHUB_PATH
      - name: Build the compiler (seed, then itself, and the two must agree)
        run: |
          export FINCH_LIBCLANG="-L/usr/lib/llvm-21/lib -lclang-21"
          bootstrap/build.sh
          build/finch version
      - name: Tests (programs, refusals, -g, a shared library, the language server)
        run: tests/run.sh
      - name: Tests under valgrind
        if: matrix.arch == 'x64'
        run: MEMCHECK=1 tests/run.sh
      - name: Package
        run: |
          mkdir -p dist/finch && cp build/finch README.md LICENSE dist/finch/ && cp -r runtime std examples dist/finch/
          tar -czf finch-linux-${{ matrix.arch }}.tar.gz -C dist finch
      - uses: actions/upload-artifact@v4
        with:
          name: finch-linux-${{ matrix.arch }}
          path: finch-linux-${{ matrix.arch }}.tar.gz

  cross:
    name: programs for ${{ matrix.target }}
    runs-on: ubuntu-24.04
    strategy:
      fail-fast: false
      matrix:
        target: [windows, arm64]
    steps:
      - uses: actions/checkout@v4
      - name: Install clang 21, libclang, cross compilers and emulators
        run: |
          wget -q https://apt.llvm.org/llvm.sh
          sudo bash llvm.sh 21
          sudo apt-get install -y libclang-21-dev pkg-config gcc-mingw-w64-x86-64 wine64 gcc-aarch64-linux-gnu qemu-user libc6-arm64-cross
          echo "/usr/lib/llvm-21/bin" >> $GITHUB_PATH
      - name: Build the compiler
        run: |
          export FINCH_LIBCLANG="-L/usr/lib/llvm-21/lib -lclang-21"
          bootstrap/build.sh
      - name: Run every test on the other system
        run: |
          if [ "${{ matrix.target }}" = windows ]; then
            FINCH_CC=x86_64-w64-mingw32-gcc tests/cross.sh windows
          else
            FINCH_CC=aarch64-linux-gnu-gcc QEMU_LD_PREFIX=/usr/aarch64-linux-gnu tests/cross.sh arm64
          fi

  vscode:
    runs-on: ubuntu-24.04
    defaults:
      run:
        working-directory: editors/vscode
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
      - run: npm ci
      - name: Grammar test
        run: npm test
      - name: Package
        run: npx vsce package --out finch-lang.vsix
      - uses: actions/upload-artifact@v4
        with:
          name: finch-vscode
          path: editors/vscode/finch-lang.vsix