tinygo/.github/workflows/build-macos.yml

name: macOS

on:
  pull_request:
  push:
    branches:
      - dev
      - release

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-macos:
    name: build-macos
    strategy:
      matrix:
        # macos-14: arm64 (oldest supported version as of 18-11-2025)
        # macos-15-intel: amd64 (last intel version to be supported by github runners)
        # See https://github.com/actions/runner-images/issues/13046
        os: [macos-14, macos-15-intel]
        include:
          - os: macos-14
            goarch: arm64
          - os: macos-15-intel
            goarch: amd64
    runs-on: ${{ matrix.os }}
    steps:
      - name: Install Dependencies
        run: |
          HOMEBREW_NO_AUTO_UPDATE=1 brew install qemu binaryen
      - name: Checkout
        uses: actions/checkout@v6
        with:
          submodules: true
      - name: Extract TinyGo version
        id: version
        run: ./.github/workflows/tinygo-extract-version.sh | tee -a "$GITHUB_OUTPUT"
      - name: Install Go
        uses: actions/setup-go@v6
        with:
          go-version: '1.27.0-rc.2'
          cache: true
      - name: Restore LLVM source cache
        uses: actions/cache/restore@v5
        id: cache-llvm-source
        with:
          key: llvm-source-22-${{ matrix.os }}-v1
          path: |
            llvm-project/clang/lib/Headers
            llvm-project/clang/include
            llvm-project/compiler-rt
            llvm-project/lld/include
            llvm-project/llvm/include
      - name: Download LLVM source
        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
        run: make llvm-source
      - name: Save LLVM source cache
        uses: actions/cache/save@v5
        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
        with:
          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
          path: |
            llvm-project/clang/lib/Headers
            llvm-project/clang/include
            llvm-project/compiler-rt
            llvm-project/lld/include
            llvm-project/llvm/include
      - name: Restore LLVM build cache
        uses: actions/cache/restore@v5
        id: cache-llvm-build
        with:
          key: llvm-build-22-${{ matrix.os }}-v1
          path: llvm-build
      - name: Build LLVM
        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
        run: |
          # fetch LLVM source
          rm -rf llvm-project
          make llvm-source
          # install dependencies
          HOMEBREW_NO_AUTO_UPDATE=1 brew install ninja
          # build!
          make llvm-build
          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
      - name: Save LLVM build cache
        uses: actions/cache/save@v5
        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
        with:
          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
          path: llvm-build
      - name: make gen-device
        run: make -j3 gen-device
      - name: Test TinyGo
        run: make test GOTESTFLAGS="-only-current-os"
      - name: Build TinyGo release tarball
        run: make release -j3
      - name: Test stdlib packages
        run: make tinygo-test
      - name: Make release artifact
        run: cp -p build/release.tar.gz build/tinygo${{ steps.version.outputs.version }}.darwin-${{ matrix.goarch }}.tar.gz
      - name: Publish release artifact
        uses: actions/upload-artifact@v7
        with:
          name: darwin-${{ matrix.goarch }}-double-zipped-${{ steps.version.outputs.version }}
          path: build/tinygo${{ steps.version.outputs.version }}.darwin-${{ matrix.goarch }}.tar.gz
          archive: false
      - name: Smoke tests
        run: make smoketest TINYGO=$(PWD)/build/tinygo
  test-macos-homebrew:
    name: homebrew-install
    runs-on: macos-latest
    strategy:
      matrix:
        version: [16, 17, 18, 19, 20]
    steps:
      - name: Set up Homebrew
        uses: Homebrew/actions/setup-homebrew@main
      - name: Fix Python symlinks
        run: |
          # Github runners have broken symlinks, so relink
          # see: https://github.com/actions/setup-python/issues/577
          brew list -1 | grep python | while read formula; do brew unlink $formula; brew link --overwrite $formula; done
      - name: Install LLVM
        run: |
          brew install llvm@${{ matrix.version }}
          brew link llvm@${{ matrix.version }}
      - name: Checkout
        uses: actions/checkout@v6
      - name: Install Go
        uses: actions/setup-go@v6
        with:
          go-version: '1.27.0-rc.2'
          cache: true
      - name: Build TinyGo (LLVM ${{ matrix.version }})
        run: go install -tags=llvm${{ matrix.version }}
      - name: Check binary
        run: tinygo version
      - name: Build TinyGo (default LLVM)
        if: matrix.version == 20
        run: go install
      - name: Check binary
        if: matrix.version == 20
        run: tinygo version