name: build

on:
  pull_request:
    branches: master
    paths:
      - '.github/workflows/build.yml'
      - 'cmd/**'
      - 'internal/**'
      - 'pkg/**'
      - '.goreleaser.yml'
      - 'Dockerfile'
      - 'go.mod'
      - 'go.sum'
  push:
    branches: master
    tags: v*
    paths:
      - '.github/workflows/build.yml'
      - 'cmd/**'
      - 'internal/**'
      - 'pkg/**'
      - '.goreleaser.yml'
      - 'Dockerfile'
      - 'go.mod'
      - 'go.sum'

jobs:
  go:
    runs-on: ubuntu-latest
    steps:
      -
        name: Prepare
        id: prepare
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo ::set-output name=tag_name::${GITHUB_REF#refs/tags/}
          fi
      -
        # https://github.com/actions/setup-go
        name: Set up Go
        uses: actions/setup-go@master
        with:
          go-version: 1.13
      -
        name: Set GOPATH
        # temporary fix (see https://github.com/actions/setup-go/issues/14)
        run: |
          echo "##[set-env name=GOPATH;]$(dirname $GITHUB_WORKSPACE)"
          echo "##[add-path]$(dirname $GITHUB_WORKSPACE)/bin"
      -
        # https://github.com/actions/checkout
        name: Checkout
        uses: actions/checkout@v1
      -
        # https://github.com/goreleaser/goreleaser-action
        name: GoReleaser
        uses: goreleaser/goreleaser-action@v1
        with:
          version: latest
          args: release --skip-publish --rm-dist
      -
        # https://github.com/softprops/action-gh-release
        name: GitHub Release
        uses: softprops/action-gh-release@v1
        if: success() && startsWith(github.ref, 'refs/tags/')
        with:
          draft: true
          files: |
            dist/checksums.txt
            dist/*.tar.gz
            dist/*.zip
          name: ${{ steps.prepare.outputs.tag_name }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  docker:
    runs-on: ubuntu-latest
    needs: go
    steps:
      -
        name: Prepare
        id: prepare
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo ::set-output name=version::${GITHUB_REF#refs/tags/v}
          else
            echo ::set-output name=version::snapshot
          fi
          echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          echo ::set-output name=docker_platforms::linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/386,linux/ppc64le,linux/s390x
          echo ::set-output name=docker_username::crazymax
          echo ::set-output name=docker_image::crazymax/${{ github.event.repository.name }}
      -
        # https://github.com/crazy-max/ghaction-docker-buildx
        name: Set up Docker Buildx
        uses: crazy-max/ghaction-docker-buildx@v1
        with:
          version: latest
      -
        # https://github.com/actions/checkout
        name: Checkout
        uses: actions/checkout@v1
      -
        name: Docker Buildx (no push)
        run: |
          docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=false" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --build-arg "VCS_REF=${GITHUB_SHA::8}" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --tag "${{ steps.prepare.outputs.docker_image }}:latest" \
            --tag "${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}" \
            --file Dockerfile .
      -
        name: Docker Login
        if: success() && startsWith(github.ref, 'refs/tags/v')
        env:
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
        run: |
          echo "${DOCKER_PASSWORD}" | docker login --username "${{ steps.prepare.outputs.docker_username }}" --password-stdin
      -
        name: Docker Buildx (push)
        if: success() && startsWith(github.ref, 'refs/tags/v')
        run: |
          docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=true" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --build-arg "VCS_REF=${GITHUB_SHA::8}" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --tag "${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}" \
            --tag "${{ steps.prepare.outputs.docker_image }}:latest" \
            --file Dockerfile .
      -
        name: Docker Check Manifest
        if: always() && startsWith(github.ref, 'refs/tags/v')
        run: |
          docker run --rm mplatform/mquery ${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}
      -
        name: Clear
        if: always() && startsWith(github.ref, 'refs/tags/v')
        run: |
          rm -f ${HOME}/.docker/config.json