name: Release (Production)

on:
  release:
    types:
      - created
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+'
      - '**/v[0-9]+.[0-9]+.[0-9]+'

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: 1.15.x
      - name: Install linter
        run: |
          go get -u golang.org/x/lint/golint
      - name: Lint files
        run: |
          golint -set_exit_status ./...

  test:
    name: Test
    strategy:
      matrix:
        go-version:
          - 1.15.x
        platform:
          - ubuntu-latest
          - macos-latest
          - windows-latest
    runs-on: ${{ matrix.platform }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: 1.15.x
      - name: Run tests
        run: |
          go test ./... -coverprofile coverage.out

  build:
    name: Build
    runs-on: ubuntu-latest
    needs: 
      - test
      - lint
    env:
      CGO_ENABLED: ${CGO_ENABLED:-0}
      TAG: ${GITHUB_REF#refs/tags/}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: 1.15.x
      - name: Build
        uses: goreleaser/goreleaser-action@v2
        with:
          version: v0.155.0
          args: --debug
      - name: Enable experimental docker features
        run: |
          mkdir -p ~/.docker/ && \
          echo '{"experimental": "enabled"}' > ~/.docker/config.json
      - name: Create manifest for version
        run: |
          export DH_TAG=$(echo $TAG | sed 's/^v*//')
          docker manifest create \
            containrrr/watchtower:$DH_TAG \
            containrrr/watchtower:amd64-$DH_TAG \
            containrrr/watchtower:i386-$DH_TAG \
            containrrr/watchtower:armhf-$DH_TAG \
            containrrr/watchtower:arm64v8-$DH_TAG
      - name: Annotate manifest for version
        run: |
          docker manifest annotate \
            containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
            containrrr/watchtower:i386-$(echo $TAG | sed 's/^v*//') \
            --os linux \
            --arch 386
          
          docker manifest annotate \
            containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
            containrrr/watchtower:armhf-$(echo $TAG | sed 's/^v*//') \
            --os linux \
            --arch arm
      
          docker manifest annotate \
            containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
            containrrr/watchtower:arm64v8-$(echo $TAG | sed 's/^v*//') \
            --os linux \
            --arch arm64 \
            --variant v8
      - name: Create manifest for latest
        run: |
          docker manifest create \
            containrrr/watchtower:latest \
            containrrr/watchtower:amd64-latest \
            containrrr/watchtower:i386-latest \
            containrrr/watchtower:armhf-latest \
            containrrr/watchtower:arm64v8-latest
      - name: Annotate manifest for latest
        run: |
          docker manifest annotate \
            containrrr/watchtower:latest \
            containrrr/watchtower:i386-latest \
            --os linux \
            --arch 386
      
          docker manifest annotate \
            containrrr/watchtower:latest \
            containrrr/watchtower:armhf-latest \
            --os linux \
            --arch arm
    
          docker manifest annotate \
            containrrr/watchtower:latest \
            containrrr/watchtower:arm64v8-latest \
            --os linux \
            --arch arm64 \
            --variant v8
      - name: Push manifests to Dockerhub
        run: |
          echo "$DOCKER_PASS" | docker login -u $DOCKER_USER --password-stdin && \
            docker manifest push containrrr/watchtower:$(echo $TAG | sed 's/^v*//') && \
            docker manifest push containrrr/watchtower:latest

  publish-docs:
    name: Publish Docs
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Install mkdocs
        run: |
          pip install \
            mkdocs \
            mkdocs-material \
            md-toc
      - name: Generate docs
        run: mkdocs build
      - name: Publish docs
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./site

  renew-docs:
    name: Refresh pkg.go.dev
    needs: build
    runs-on: ubuntu-latest
    steps:
    - name: Pull new module version
      uses: andrewslotin/go-proxy-pull-action@master