name: Build, package, and upload Ruby gem

on:
  create:
    tags:
      - 'v*'

jobs:
  build:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
        include:
          - os: ubuntu-latest
            NAME: linux
            FILE: 'libhyperbuild_ruby_lib.so'
          - os: macos-latest
            NAME: macos
            FILE: 'libhyperbuild_ruby_lib.dylib'
    steps:
      - uses: actions/checkout@v1
      - name: Set up Ruby (Linux)
        if: runner.os == 'Linux'
        run: sudo apt install -y ruby2.5 ruby2.5-dev
      - name: Set up Ruby (macOS)
        if: runner.os == 'macOS'
        run: brew install ruby@2.5
      - name: Set up Rust
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          default: true
      - name: Build Ruby native library
        run: cargo build --release
        working-directory: ./ruby
      - name: Upload built library
        uses: actions/upload-artifact@v1
        with:
          name: ${{ matrix.NAME }}
          path: ./ruby/target/release/${{ matrix.FILE }}
  package:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v1
      - name: Get version
        id: version
        shell: bash
        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
      - name: Set up Ruby
        uses: actions/setup-ruby@v1
        with:
          ruby-version: '2.5'
      - name: Download Linux built library
        uses: actions/download-artifact@v1
        with:
          name: linux
          path: ruby/lib/linux
      - name: Download macOS built library
        uses: actions/download-artifact@v1
        with:
          name: macos
          path: ruby/lib/macos
      - name: Move native library files to correct location
        shell: bash
        working-directory: ./ruby/lib
        run: |
          for f in *; do
            if [ -d "$f" ]; then
              mv $f/* "$f.nativelib"
              rmdir "$f"
              mv "$f.nativelib" "$f"
            fi
          done
      - name: Package and publish gem
        working-directory: ./ruby
        run: |
          gem build hyperbuild.gemspec
          mkdir -p "$HOME/.gem"
          echo '---' > "$HOME/.gem/credentials"
          echo ":rubygems_api_key: ${{ secrets.RUBYGEMS_API_KEY }}" >> "$HOME/.gem/credentials"
          chmod 0600 "$HOME/.gem/credentials"
          gem push hyperbuild-${{ steps.version.outputs.VERSION }}.gem