name: Build test

on:
  push:
    branches:
      - master
  pull_request:
    # GoReleaser and the darwin launcher take no gallery, docs or markdown
    # input, so a diff confined to these paths cannot change either binary.
    # The darwin job matters here: macOS is the scarcest runner class.
    #
    # backend/{cpp,go,python}/**: GoReleaser builds ./cmd/local-ai and the
    # launcher builds ./cmd/launcher; neither compiles a backend. The
    # before-hooks still matter, but their input is backend/backend.proto
    # (protogen-go) and go.mod/go.sum (go mod tidy), none of which live under
    # these prefixes, so a change to any of those still triggers a full run.
    # See .agents/ci-caching.md.
    paths-ignore:
      - 'gallery/**'
      - 'docs/**'
      - 'examples/**'
      - '**/*.md'
      - 'backend/cpp/**'
      - 'backend/go/**'
      - 'backend/python/**'

# Supersede an in-flight run when a PR gets a new push. Keyed on the PR number
# so every push to the same PR shares a group; on a master push the key falls
# back to github.sha (unique per commit) and cancel-in-progress is false, so
# master runs never cancel each other -- each commit is built on its own.
concurrency:
  group: ci-build-test-${{ github.event.pull_request.number || github.sha }}-${{ github.repository }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  build-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          fetch-depth: 0
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: 1.25
      # A PR builds only the host target. The three-platform cross-compile
      # (linux/amd64, linux/arm64, darwin/arm64) is the bulk of this job's
      # ~6.6min median and no PR consumes the resulting binaries. The
      # before-hooks (protogen-go, react-ui, go mod tidy) run either way, so the
      # "is the release build broken" signal is unchanged. master and tags still
      # build everything.
      - name: Run GoReleaser
        run: |
          make ${{ github.event_name == 'pull_request' && 'dev-dist-single' || 'dev-dist' }}
  launcher-build-darwin:
    runs-on: macos-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          fetch-depth: 0
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: 1.25
      - name: Build launcher for macOS ARM64
        run: |
          make build-launcher-darwin
          ls -liah dist
      - name: Upload macOS launcher artifacts
        uses: actions/upload-artifact@v7
        with:
          name: launcher-macos
          path: dist/
          retention-days: 30
      
  launcher-build-linux:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          fetch-depth: 0
      - name: Configure apt mirror on runner
        uses: ./.github/actions/configure-apt-mirror
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: 1.25
      - name: Build launcher for Linux
        run: |
          sudo apt-get update
          sudo apt-get install golang gcc libgl1-mesa-dev xorg-dev libxkbcommon-dev
          make build-launcher-linux
      - name: Upload Linux launcher artifacts
        uses: actions/upload-artifact@v7
        with:
          name: launcher-linux
          path: local-ai-launcher-linux.tar.xz
          retention-days: 30