name: release
on:
  push:
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+'
jobs:
  create-release:
    name: create-release
    runs-on: ubuntu-latest
    steps:
      - name: Create artifacts directory
        run: mkdir artifacts

      - name: Get the release version from the tag
        if: env.VERSION == ''
        run: |
          echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
          echo "version is: ${{ env.VERSION }}"
      - name: Create GitHub release
        id: release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.VERSION }}
          release_name: ${{ env.VERSION }}

      - name: Save release upload URL to artifact
        run: echo "${{ steps.release.outputs.upload_url }}" > artifacts/release-upload-url

      - name: Save version number to artifact
        run: echo "${{ env.VERSION }}" > artifacts/release-version

      - name: Upload artifacts
        uses: actions/upload-artifact@v1
        with:
          name: artifacts
          path: artifacts

  build-release:
    name: build-release
    needs: [ 'create-release' ]
    runs-on: ${{ matrix.os }}
    env:
      # Emit backtraces on panics.
      RUST_BACKTRACE: 1
    strategy:
      matrix:
        build: [ linux-amd64, macos-intel, windows ]
        include:
          - build: linux-amd64
            os: ubuntu-18.04
            rust: stable
            target: x86_64-unknown-linux-musl
          - build: macos-intel
            os: macos-latest
            rust: stable
            target: x86_64-apple-darwin
          - build: windows
            os: windows-2019
            rust: stable
            target: x86_64-pc-windows-msvc

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 1

      - name: Install packages (Ubuntu)
        if: matrix.os == 'ubuntu-18.04'
        run: |
          .github/ci/ubuntu-install-packages
      - name: Install packages (macOS)
        if: matrix.os == 'macos-latest'
        run: |
          .github/ci/macos-install-packages
      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.rust }}
          profile: minimal
          override: true
          target: ${{ matrix.target }}

      - name: Get release download URL
        uses: actions/download-artifact@v1
        with:
          name: artifacts
          path: artifacts

      - name: Set release upload URL
        shell: bash
        run: |
          release_upload_url="$(cat artifacts/release-upload-url)"
          echo "RELEASE_UPLOAD_URL=$release_upload_url" >> $GITHUB_ENV
          echo "release upload url: $release_upload_url"

      - name: Build onetun binary
        run: cargo build --release

      - name: Prepare onetun binary
        shell: bash
        run: |
          mkdir -p ci/assets
          if [ "${{ matrix.build }}" = "windows" ]; then
            cp "target/release/onetun.exe" "ci/assets/onetun.exe"
            echo "ASSET=onetun.exe" >> $GITHUB_ENV
          else
            cp "target/release/onetun" "ci/assets/onetun-${{ matrix.build }}"
            echo "ASSET=onetun-${{ matrix.build }}" >> $GITHUB_ENV
          fi

      - name: Upload release archive
        uses: actions/upload-release-asset@v1.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ env.RELEASE_UPLOAD_URL }}
          asset_path: ci/assets/${{ env.ASSET }}
          asset_name: ${{ env.ASSET }}
          asset_content_type: application/octet-stream