build_wheel.yml

name: Build Wheels

on:
  push:
    branches: ["master"]
    paths: [".github/workflows/build_wheel.yml", "dither_go/**", "!dither_go/bindings/**"]
  pull_request:
    paths: [".github/workflows/build_wheel.yml", "dither_go/**", "!dither_go/bindings/**"]
  workflow_dispatch:
  workflow_call:

jobs:
  build_sdist:
    name: Source distribution
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Build sdist
        run: pipx run build --sdist

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: source
          path: dist/*.tar.gz

  build_macos:
    #if: false
    name: MacOS ${{ matrix.arch_cibw_go[0] }}
    strategy:
      fail-fast: false
      matrix:
        arch_cibw_go:
          - [ "x86_64", "amd64" ]
          - [ "arm64", "arm64" ]
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: "1.20.x"

      - name: Install gopy
        run: go install github.com/go-python/gopy@v0.4.7

      - name: Install goimports
        run: go install golang.org/x/tools/cmd/goimports@latest

      - name: Build wheels
        run: ./tools/macos_build_wheels.sh
        env:
          CIBW_ARCHS: ${{ matrix.arch_cibw_go[0] }}
          CIBW_BUILD_FRONTEND: "build"
          PYTHON_BINARY_PATH: /usr/local/bin/python_for_build
          CIBW_ENVIRONMENT: >
            PATH=$PATH:/usr/local/go/bin
            GOARCH=${{ matrix.arch_cibw_go[1] }}
            CGO_ENABLED=1
            MACOSX_DEPLOYMENT_TARGET=10.15

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./wheelhouse/*.whl

  build_linux_x86_64:
    #if: false
    name: Linux x86_64
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Build wheels
        uses: pypa/cibuildwheel@v2.15.0
        with:
          package-dir: .
        env:
          CIBW_BUILD: "cp3*_x86_64"
          CIBW_BUILD_FRONTEND: "build"
          CIBW_SKIP: "cp36-* cp37-* *-musllinux_x86_64"
          CIBW_ARCHS: "native"
          CIBW_ENVIRONMENT: >
            PATH=$PATH:/usr/local/go/bin
            CGO_ENABLED=1
          CIBW_BEFORE_ALL_LINUX: |
            curl -o go.tar.gz https://dl.google.com/go/go1.20.7.linux-amd64.tar.gz
            tar -C /usr/local -xzf go.tar.gz
            go install github.com/go-python/gopy@v0.4.7
            go install golang.org/x/tools/cmd/goimports@latest
            ./tools/linux_compile_libwebp.sh

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./wheelhouse/*.whl

  build_linux_arm64:
    #if: false
    name: Linux arm64
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        python3_version: [ 8, 9, 10, 11 ]

    steps:
      - uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Build 3.${{ matrix.python3_version }} wheels
        uses: pypa/cibuildwheel@v2.15.0
        with:
          package-dir: .
        env:
          CIBW_BUILD: "cp3${{ matrix.python3_version }}*_aarch64"
          CIBW_BUILD_FRONTEND: "build"
          CIBW_SKIP: "cp36-* cp37-* *-musllinux_aarch64"
          CIBW_ARCHS: "aarch64"
          CIBW_ENVIRONMENT: >
            PATH=$PATH:/usr/local/go/bin
            CGO_ENABLED=1
          CIBW_BEFORE_ALL_LINUX: |
            curl -o go.tar.gz https://dl.google.com/go/go1.20.7.linux-arm64.tar.gz
            tar -C /usr/local -xzf go.tar.gz
            go install github.com/go-python/gopy@v0.4.7
            go install golang.org/x/tools/cmd/goimports@latest
            ./tools/linux_compile_libwebp.sh

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./wheelhouse/*.whl

  build_linux_armv7l:
    if: false # Disable for now; It can't find source files for some reason
    name: Linux armv7l
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        python3_version: [ 8, 9, 10, 11 ]

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Build 3.${{ matrix.python3_version }} wheels via Docker
        uses: docker/build-push-action@v3
        with:
          context: .
          file: ./tools/Dockerfile.armv7l
          build-args: |
            PYTHON3_VERSION=${{ matrix.python3_version }}
          push: false
          platforms: linux/armhf
          tags: armv7l:latest
          load: true

      - name: Extract output
        run: |
          docker run -v /tmp/output:/host armv7l:latest bash -c "cp /export/* /host/"
          tar -zcvf /tmp/output.tar.gz /tmp/output

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: /tmp/output/*.whl

  build_windows:
    if: false # TODO: Modify to use MinGW instead
    name: Windows x86_64
    runs-on: windows-latest

    steps:
      - uses: actions/checkout@v3
      - uses: ilammy/msvc-dev-cmd@v1

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: "1.20.x"

      # TODO: Make a fork of this fork to update to 0.4.7
      - name: Install gopy
        run: |
          cd $env:TEMP
          git clone https://github.com/bjia56/gopy
          cd gopy
          git checkout v0.4.5+bjia56.v1
          go install -v
          gopy

      - name: Install goimports
        run: go install golang.org/x/tools/cmd/goimports@latest

      - name: Compile Libwebp
        run: |
          curl -o libwebp.tar.gz https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.3.1.tar.gz
          tar -xzf libwebp.tar.gz
          cd libwebp-1.3.1
          nmake /f Makefile.vc CFG=release-dynamic RTLIBCFG=dynamic OBJDIR=output

      - name: Build wheels
        uses: pypa/cibuildwheel@v2.15.0
        with:
          package-dir: .
        env:
          CIBW_BUILD: "cp3*"
          CIBW_BUILD_FRONTEND: "build"
          CIBW_SKIP: "cp36-* cp37-*"
          CIBW_ARCHS: "native"
          CIBW_ENVIRONMENT: >
            GOARCH=amd64
            CGO_ENABLED=1

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./wheelhouse/*.whl

  upload_to_pypi:
    name: Upload to PyPI
    needs:
    - build_sdist
    - build_macos
    - build_linux_x86_64
    - build_linux_arm64
    #- build_linux_armv7l
    #- build_windows
    runs-on: ubuntu-latest
    environment: pypi-upload
    permissions:
      id-token: write
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    steps:
      - name: Get source distribution
        uses: actions/download-artifact@v3
        with:
          name: source
          path: dist
      - name: Get all built distributions
        uses: actions/download-artifact@v3
        with:
          name: wheels
          path: dist
      - name: Publish package distributions to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1

  all_builds_passed:
    needs:
    - build_sdist
    - build_macos
    - build_linux_x86_64
    - build_linux_arm64
    #- build_linux_armv7l
    #- build_windows
    runs-on: ubuntu-latest
    steps:
    - run: |
        echo "All builds passed!"