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-12: amd64 (oldest supported version as of 05-02-2024)
        # macos-14: arm64 (oldest arm64 version)
        os: [macos-12, macos-14]
        include:
          - os: macos-12
            goarch: amd64
          - os: macos-14
            goarch: arm64
    runs-on: ${{ matrix.os }}
    steps:
      - name: Install Dependencies
        shell: bash
        run: |
          HOMEBREW_NO_AUTO_UPDATE=1 brew install qemu binaryen
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Install Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.23'
          cache: true
      - name: Restore LLVM source cache
        uses: actions/cache/restore@v4
        id: cache-llvm-source
        with:
          key: llvm-source-18-${{ matrix.os }}-v2
          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@v4
        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
        with:
          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
          path: |
            llvm-project/clang/lib/Headers
            llvm-project/clang/include
            llvm-project/compiler-rt
            llvm-project/lld/include
            llvm-project/llvm/include
      - name: Restore LLVM build cache
        uses: actions/cache/restore@v4
        id: cache-llvm-build
        with:
          key: llvm-build-18-${{ matrix.os }}-v3
          path: llvm-build
      - name: Build LLVM
        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
        shell: bash
        run: |
          # fetch LLVM source
          rm -rf llvm-project
          make llvm-source
          # install dependencies
          HOMEBREW_NO_AUTO_UPDATE=1 brew install cmake ninja
          # build!
          make llvm-build
          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
      - name: Save LLVM build cache
        uses: actions/cache/save@v4
        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
        with:
          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
          path: llvm-build
      - name: Cache wasi-libc sysroot
        uses: actions/cache@v4
        id: cache-wasi-libc
        with:
          key: wasi-libc-sysroot-${{ matrix.os }}-v1
          path: lib/wasi-libc/sysroot
      - name: Build wasi-libc
        if: steps.cache-wasi-libc.outputs.cache-hit != 'true'
        run: make wasi-libc
      - name: make gen-device
        run: make -j3 gen-device
      - name: Test TinyGo
        shell: bash
        run: make test GOTESTFLAGS="-short"
      - name: Build TinyGo release tarball
        run: make release -j3
      - name: Test stdlib packages
        run: make tinygo-test
      - name: Make release artifact
        shell: bash
        run: cp -p build/release.tar.gz build/tinygo.darwin-${{ matrix.goarch }}.tar.gz
      - name: Publish release artifact
        # Note: this release artifact is double-zipped, see:
        # https://github.com/actions/upload-artifact/issues/39
        # We can essentially pick one of these:
        # - have a double-zipped artifact when downloaded from the UI
        # - have a very slow artifact upload
        # We're doing the former here, to keep artifact uploads fast.
        uses: actions/upload-artifact@v4
        with:
          name: darwin-${{ matrix.goarch }}-double-zipped
          path: build/tinygo.darwin-${{ matrix.goarch }}.tar.gz
      - name: Smoke tests
        shell: bash
        run: make smoketest TINYGO=$(PWD)/build/tinygo
  test-macos-homebrew:
    name: homebrew-install
    runs-on: macos-latest
    strategy:
      matrix:
        version: [16, 17, 18]
    steps:
      - name: Set up Homebrew
        uses: Homebrew/actions/setup-homebrew@master
      - 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 }}
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.23'
          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 == 18
        run: go install
      - name: Check binary
        if: matrix.version == 18
        run: tinygo version