release.yml

name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write
  packages: write

env:
  REGISTRY: ghcr.io
  APP_NAME: ${{ github.repository }}

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3
    - uses: actions/setup-go@v3
      with:
        # go-version: 1.19
        go-version-file: go.mod
        # The builtin cache feature ensures that installing golangci-lint
        # is consistently fast.
        cache: true
        cache-dependency-path: go.sum

    - uses: nowsprinting/check-version-format-action@v3
      if: github.event_name != 'pull_request'
      id: version
      with:
        prefix: 'v'

    - name: Build app
      run: CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags="-X 'main.version=${{ steps.version.outputs.full }}'" -o bin/${{ env.APP_NAME }} .
    
    - name: Generate MD5
      run: md5sum bin/${{ env.APP_NAME }} > bin/${{ env.APP_NAME }}.md5

    - name: Push to release
      uses: softprops/action-gh-release@v1
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        generate_release_notes: true
        files: |
          bin/${{ env.APP_NAME }}
          bin/${{ env.APP_NAME }}.md5
        prerelease: ${{ steps.version.outputs.prerelease }}

    - name: Docker meta
      id: meta
      uses: docker/metadata-action@v3
      with:
        images: ${{ env.REGISTRY }}/${{ env.APP_NAME }}
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=semver,pattern={{major}}
          type=sha

    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v2
      if: github.event_name != 'pull_request'
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GH_TOKEN }}

    - name: Build and push
      uses: docker/build-push-action@v4
      with:
        context: .
        file: ./Dockerfile
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}