build-zig.yml

name: Build Zig

permissions:
  contents: read
  actions: write

on:
  workflow_call:
    inputs:
      runs-on:
        type: string
        default: ${{ github.repository_owner != 'oven-sh' && 'ubuntu-latest' || inputs.only-zig && 'namespace-profile-bun-ci-linux-x64' || inputs.arch == 'x64' && 'namespace-profile-bun-ci-linux-x64' || 'namespace-profile-bun-ci-linux-aarch64' }}
      tag:
        type: string
        required: true
      os:
        type: string
        required: true
      arch:
        type: string
        required: true
      cpu:
        type: string
        required: true
      assertions:
        type: boolean
        default: false
      zig-optimize:
        type: string # 'ReleaseSafe' or 'ReleaseFast'
        default: ReleaseFast
      canary:
        type: boolean
        default: ${{ github.ref == 'refs/heads/main' }}
      only-zig:
        type: boolean
        default: true
      no-cache:
        type: boolean
        default: false

jobs:
  build-zig:
    name: ${{ inputs.only-zig && 'Build Zig' || 'Build & Link' }}
    runs-on: ${{ inputs.runs-on }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Calculate Cache Key
        id: cache
        run: |
          echo "key=${{ hashFiles('Dockerfile', 'Makefile', 'CMakeLists.txt', 'build.zig', 'scripts/**', 'src/**', 'packages/bun-usockets/src/**', 'packages/bun-uws/src/**') }}" >> $GITHUB_OUTPUT
      - if: ${{ !inputs.no-cache }}
        name: Restore Cache
        uses: actions/cache@v4
        with:
          key: bun-${{ inputs.tag }}-docker-${{ steps.cache.outputs.key }}
          restore-keys: |
            bun-${{ inputs.tag }}-docker-
          path: |
            ${{ runner.temp }}/dockercache
      - name: Setup Docker
        uses: docker/setup-buildx-action@v3
        with:
          install: true
          platforms: |
            linux/${{ runner.arch == 'X64' && 'amd64' || 'arm64' }}
      - name: Build
        uses: docker/build-push-action@v5
        with:
          push: false
          target: ${{ inputs.only-zig && 'build_release_obj' || 'artifact' }}
          cache-from: |
            type=local,src=${{ runner.temp }}/dockercache
          cache-to: |
            type=local,dest=${{ runner.temp }}/dockercache,mode=max
          outputs: |
            type=local,dest=${{ runner.temp }}/release
          platforms: |
            linux/${{ runner.arch == 'X64' && 'amd64' || 'arm64' }}
          build-args: |
            GIT_SHA=${{ github.event.workflow_run.head_sha || github.sha }}
            TRIPLET=${{ inputs.os == 'darwin' && format('{0}-macos-none', inputs.arch == 'x64' && 'x86_64' || 'aarch64') || inputs.os == 'windows' && format('{0}-windows-msvc', inputs.arch == 'x64' && 'x86_64' || 'aarch64') || format('{0}-linux-gnu', inputs.arch == 'x64' && 'x86_64' || 'aarch64') }}
            ARCH=${{ inputs.arch == 'x64' && 'x86_64' || 'aarch64' }}
            BUILDARCH=${{ inputs.arch == 'x64' && 'amd64' || 'arm64' }}
            BUILD_MACHINE_ARCH=${{ inputs.arch == 'x64' && 'x86_64' || 'aarch64' }}
            CPU_TARGET=${{ inputs.arch == 'x64' && inputs.cpu || 'native' }}
            ASSERTIONS=${{ inputs.assertions && 'ON' || 'OFF' }}
            ZIG_OPTIMIZE=${{ inputs.zig-optimize }}
            CANARY=${{ inputs.canary && '1' || '0' }}
      - if: ${{ inputs.only-zig }}
        name: Upload bun-${{ inputs.tag }}-zig
        uses: actions/upload-artifact@v4
        with:
          name: bun-${{ inputs.tag }}-zig
          path: ${{ runner.temp }}/release/bun-zig.o
          if-no-files-found: error
      - if: ${{ !inputs.only-zig }}
        name: Prepare
        run: |
          cd ${{ runner.temp }}/release
          chmod +x bun-profile bun
          mkdir bun-${{ inputs.tag }}-profile
          mkdir bun-${{ inputs.tag }}
          strip bun
          mv bun-profile bun-${{ inputs.tag }}-profile/bun-profile
          mv bun bun-${{ inputs.tag }}/bun
          zip -r bun-${{ inputs.tag }}-profile.zip bun-${{ inputs.tag }}-profile
          zip -r bun-${{ inputs.tag }}.zip bun-${{ inputs.tag }}
      - if: ${{ !inputs.only-zig }}
        name: Upload bun-${{ inputs.tag }}
        uses: actions/upload-artifact@v4
        with:
          name: bun-${{ inputs.tag }}
          path: ${{ runner.temp }}/release/bun-${{ inputs.tag }}.zip
          if-no-files-found: error
      - if: ${{ !inputs.only-zig }}
        name: Upload bun-${{ inputs.tag }}-profile
        uses: actions/upload-artifact@v4
        with:
          name: bun-${{ inputs.tag }}-profile
          path: ${{ runner.temp }}/release/bun-${{ inputs.tag }}-profile.zip
          if-no-files-found: error