name: docker

on:
  push:
    branches:
    - master
    - dev
    - travis-multiarch-builds
    tags:
    - 'ng-*'

jobs:
  # build and push image to docker hub.
  buildx:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Cache Docker layers
        uses: actions/cache@v2
        id: cache
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-
      -
        name: Prepare
        id: prepare
        env:
          DOCKER_IMAGE: ${{ secrets.DOCKER_IMAGE }}
        run: |
          DOCKER_PLATFORMS=linux/amd64
          DOCKER_VERSION=edge
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            DOCKER_VERSION=${GITHUB_REF#refs/tags/}
          fi
          if [[ $GITHUB_REF == refs/heads/* ]]; then
            DOCKER_VERSION=${GITHUB_REF#refs/heads/}
          fi
          DOCKER_TAG="${DOCKER_IMAGE}:${DOCKER_VERSION}"
          if [[ $DOCKER_VERSION == "master" ]]; then
            DOCKER_TAG="${DOCKER_IMAGE}:latest"
          fi
          echo ::set-output name=version::${DOCKER_VERSION}
          echo ::set-output name=platforms::${DOCKER_PLATFORMS}
          echo ::set-output name=tag::${DOCKER_TAG}
      -
        name: Docker buildx (build)
        run: |
          docker buildx build \
            --cache-from "type=local,src=/tmp/.buildx-cache" \
            --cache-to "type=local,dest=/tmp/.buildx-cache" \
            --output "type=image,push=false" \
            --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
            --build-arg VCS_REF=${GITHUB_SHA::8} \
            --platform ${{steps.prepare.outputs.platforms}} \
            --tag ${{steps.prepare.outputs.tag}} ./

      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      -
        name: Docker Buildx (push)

        if: false
        run: |
          docker buildx build \
            --cache-from "type=local,src=/tmp/.buildx-cache" \
            --platform ${{steps.prepare.outputs.platforms}} \
            --output "type=image,push=true" \
            --tag ${{steps.prepare.outputs.tag}} ./

      - name: Docker Check Manifest
        if: false
        run: |
          docker run --rm mplatform/mquery ${{steps.prepare.outputs.tag}}
      -
        name: Inspect image
        if: false
        run: |
          docker buildx imagetools inspect ${{steps.prepare.outputs.tag}}

      - name: Clear
        run: |
          rm -f ${HOME}/.docker/config.json