build_and_release.yml

---
name: Build and release
on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-18.04
    strategy:
      matrix:
        artifact: [ "service" ]
    name: Build ${{ matrix.artifact }}
    steps:
      - uses: actions/checkout@v2
      - name: Setup go
        uses: actions/setup-go@v1
        with:
          go-version: '1.14'
      - name: Build binary
        run: go build
      - name: Prepare artifact
        if: startsWith(github.ref, 'refs/tags/')
        run: |
          mkdir ${{ runner.temp }}/artifacts
          cp ${{ matrix.artifact }} ${{ runner.temp }}/artifacts
      - name: Updload artifact
        if: startsWith(github.ref, 'refs/tags/')
        uses: actions/upload-artifact@v1
        with:
          name: ${{ matrix.artifact }}
          path: ${{ runner.temp }}/artifacts

  draft-release:
    runs-on: ubuntu-18.04
    needs: build
    name: Create draft release
    outputs:
      upload_url: ${{ steps.create_release.outputs.upload_url }}
      id: ${{ steps.create_release.outputs.id }}
    if: startsWith(github.ref, 'refs/tags/')
    steps:
      - name: Checkout code
        uses: actions/checkout@master
      - name: Create Release
        id: create_release
        uses: actions/create-release@latest
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref }}
          draft: true

  upload-artifacts:
    name: Upload artifacts
    runs-on: ubuntu-18.04
    needs: draft-release
    strategy:
      matrix:
        artifact: [ "service" ]
    steps:
      - name: Checkout code
        uses: actions/checkout@master
      - run: mkdir ${{ runner.temp }}/artifacts
      - uses: actions/download-artifact@v4.1.7
        with:
          name: ${{ matrix.artifact }}
          path: ${{ runner.temp }}/artifacts
      - name: Upload Release Asset
        id: upload-release-asset 
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ needs.draft-release.outputs.upload_url }}
          asset_path: ${{ runner.temp }}/artifacts/${{ matrix.artifact }}
          asset_name: ${{ matrix.artifact }}
          asset_content_type: application/octet-stream

  release:
    runs-on: ubuntu-18.04
    needs: [upload-artifacts, draft-release]
    name: Create release
    steps:
      - uses: actions/github-script@0.9.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.repos.updateRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              release_id: ${{ needs.draft-release.outputs.id }},
              draft: false
            })