release.yaml

# This is the DEV workflow.
# Run this Action on creating a new tag matching "<version>-b<build>"
# e.g., 3.7-b1
name: Build support package
on:
  push:
    tags:
    - '*-b*'

jobs:
  make-release:
    runs-on: ubuntu-latest
    steps:
    - name: Set build variables
      env:
        TAG_NAME: ${{ github.ref }}
      run: |
        export TAG=$(basename $TAG_NAME)
        echo "TAG=${TAG}"
        export TAG_VERSION="${TAG%-*}"
        export TAG_BUILD="${TAG#*-}"
        echo "PY_VERSION=${TAG_VERSION}"
        echo "BUILD_NUMBER=${TAG_BUILD}"
        echo "::set-env name=TAG::${TAG}"
        echo "::set-env name=PY_VERSION::${TAG_VERSION}"
        echo "::set-env name=BUILD_NUMBER::${TAG_BUILD}"
    - name: Create Release
      id: create_release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        tag_name: ${{ github.ref }}
        release_name: ${{ github.ref }}
        draft: true
        prerelease: false
        body: |
          Build ${{ env.BUILD_NUMBER }} of the BeeWare support package for Python ${{ env.PY_VERSION }}.

          Includes:
          * Python ${{ env.PY_VERSION }}.?
          * ...
    outputs:
      upload_url: ${{ steps.create_release.outputs.upload_url }}

  build:
    runs-on: macOS-latest
    needs: make-release
    strategy:
      max-parallel: 4
      matrix:
        target: ['macOS', 'iOS', 'tvOS', 'watchOS']
    steps:
    - uses: actions/checkout@v2
    - name: Set build variables
      env:
        TAG_NAME: ${{ github.ref }}
      run: |
        export TAG=$(basename $TAG_NAME)
        echo "TAG=${TAG}"
        export TAG_VERSION="${TAG%-*}"
        export TAG_BUILD="${TAG#*-}"
        echo "PY_VERSION=${TAG_VERSION}"
        echo "BUILD_NUMBER=${TAG_BUILD}"
        echo "::set-env name=TAG::${TAG}"
        echo "::set-env name=PY_VERSION::${TAG_VERSION}"
        echo "::set-env name=BUILD_NUMBER::${TAG_BUILD}"
    - name: Build ${{ matrix.target }}
      env:
        BUILD_NUMBER: ${{ env.BUILD_NUMBER }}
      run: |
        # 2020-05-29: The iOS 13.4 SDK changed the implementation of FD_SET
        # to use a weak linked symbol (__darwin_check_fd_set_overflow).
        # This means any support package built against that SDK is incompatible
        # with linking against an earlier SDK.
        # However, you can't get the iOS 13.4 SDK on macOS Mojave (10.14),
        # because the latest XCode supported on Mojave (11.3.1) only provided
        # SDK 13.2.
        # So: We force the use of XCode 11.3.1, which ships with the 13.2 SDK.
        # For a list of SDKs available on Github Actions, see:
        # https://github.com/actions/virtual-environments/blob/master/images/macos/macos-10.15-Readme.md
        sudo xcode-select --switch /Applications/Xcode_11.3.1.app

        # 2020-06-24: The Homebrew copy of gettext leaks into the macOS build
        # if it is present. Uninstall gettext to make sure that doesn't happen.
        brew uninstall --ignore-dependencies gettext

        # Do the build for the requested target.
        make -e ${{ matrix.target }}
    - name: Upload ${{ matrix.target }} release asset
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ needs.make-release.outputs.upload_url }}
        asset_path: ./dist/Python-${{ env.PY_VERSION }}-${{ matrix.target }}-support.${{ env.BUILD_NUMBER }}.tar.gz
        asset_name: Python-${{ env.PY_VERSION }}-${{ matrix.target }}-support.${{ env.BUILD_NUMBER }}.tar.gz
        asset_content_type: application/gzip