build.yaml

name: CI

on:
  push:
    branches: [ main ]
    tags:
      - 'v*'
  pull_request:
    branches: [ main ]

jobs:
  linux-build:
    strategy:
      matrix:
        platform:
          - { name: "linux/amd64", filename_suffix: "linux-amd64", target_arch: "x86_64", runner: "ubuntu-22.04" }
          - { name: "linux/arm64", filename_suffix: "linux-arm64", target_arch: "arm64", runner: "ubuntu-22.04-arm" }
        runAllTests:
          - ${{ startsWith(github.ref, 'refs/tags/') }}
        # exclude:
        #   - platform: { name: "linux/arm64", filename_suffix: "linux-arm64", target_arch: "arm64"  }
        #     runAllTests: false
      fail-fast: false
    runs-on: ${{ matrix.platform.runner }}

    env:
      SLIPSHOW_PLATFORM: ${{ matrix.platform.name }}

    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0 # Needed to fetch tags

      # The latest tag is needed to build the release tarball but
      # actions/checkout fails to fetch it properly.
      # https://github.com/actions/checkout/issues/882
      - name: Fetch tags
        run: git fetch --tags --force origin

      - name: Set up QEMU
        id: qemu
        uses: docker/setup-qemu-action@v3
        # with:
        #   image: tonistiigi/binfmt:latest
        #   platforms: all

      - name: Expose GitHub Runtime
        uses: crazy-max/ghaction-github-runtime@v3

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v3
        # with:
        #   driver: docker

      - name: Check images
        run: docker image ls

      - name: Build release tarball
        # if: startsWith(github.ref, 'refs/tags/')
        run: |
          mkdir -p new_release; chmod a+rw new_release;
          docker buildx build --platform ${{ matrix.platform.name }} --load \
            --cache-to type=gha,mode=max \
            --cache-from type=gha \
            -f release/Dockerfile \
            -t slipshow-release-${{ matrix.platform.name }} .
          docker run --platform ${{ matrix.platform.name }} -v $PWD/new_release:/release \
            -e VERSION=$GITHUB_REF_NAME \
            -e TARGETOS=linux \
            -e TARGETARCH=${{ matrix.platform.target_arch }} \
            -e OUTPUT=/release \
            slipshow-release-${{ matrix.platform.name }} \
            opam exec -- bash release/release.sh

      - name: upload archives
        # if: startsWith(github.ref, 'refs/tags/')
        uses: actions/upload-artifact@v4
        with:
          name: archives-linux-${{ matrix.platform.target_arch }}
          path: new_release/*

  mac-build:
    strategy:
      fail-fast: false
      matrix:
        config:
          - { os: "macos-13", arch: "x86_64" }
          - { os: "macos-14", arch: "arm64" }
        ocaml-compiler:
          - 4.14.x
    runs-on: ${{ matrix.config.os }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # See the same step in the linux build
      - name: Fetch tags
        run: git fetch --tags --force origin

      - name: Use OCaml ${{ matrix.ocaml-compiler }}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: ${{ matrix.ocaml-compiler }}

      - name: Install dependencies
        run: opam install --deps-only --with-test --with-doc -y .

      - name: Build release tarball
        # if: startsWith(github.ref, 'refs/tags/')
        run: |
          mkdir -p new_release;
          export OUTPUT=$PWD/new_release;
          export TARGETOS=macos;
          export TARGETARCH=${{ matrix.config.arch }};
          export VERSION=$GITHUB_REF_NAME;
          opam exec -- bash release/release.sh

      - name: upload archives
        # if: startsWith(github.ref, 'refs/tags/')
        uses: actions/upload-artifact@v4
        with:
          name: archives-${{ matrix.config.os }}-${{ matrix.config.arch }}
          path: new_release/*

  release:
    if: startsWith(github.ref, 'refs/tags/')
    needs: [linux-build, mac-build]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Download build artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: archives-*
          path: archives
          merge-multiple: true

      - name: Release
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          files: |
            archives/*