name: Docker Build

on:
  push:
    branches:
      - 'master'

jobs:
  docker:
    runs-on: ubuntu-latest
    env:
      CYPRESS_INSTALL_BINARY: "0"
    steps:
      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=${{ secrets.DOCKERHUB_USERNAME }}/${GITHUB_REPOSITORY#*/}
          VERSION=latest
          SHORTREF=${GITHUB_SHA::8}

          # If this is git tag, use the tag name as a docker tag
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/v}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION},${DOCKER_IMAGE}:${SHORTREF}"

          # If the VERSION looks like a version number, assume that
          # this is the most recent version of the image and also
          # tag it 'latest'.
          if [[ $VERSION =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi

          # Set output parameters.
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=docker_image::${DOCKER_IMAGE}
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Set up QEMU
        uses: docker/setup-qemu-action@master
        with:
          platforms: all
      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@master
      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          builder: ${{ steps.buildx.outputs.name }}
          push: true
          tags: ${{ steps.prep.outputs.tags }}
          platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/ppc64le
          cache-from: type=registry,ref=tedkulp/vidgrab:latest
          cache-to: type=inline
      - name: git checkout
        uses: actions/checkout@v2
      - name: push README to Dockerhub
        uses: christian-korneck/update-container-description-action@v1
        env:
          DOCKER_USER: ${{ secrets.DOCKERHUB_USERNAME }}
          DOCKER_PASS: ${{ secrets.DOCKERHUB_PASSWORD }}
        with:
          destination_container_repo: tedkulp/vidgrab
          provider: dockerhub
          short_description: 'Simple web interface to download videos with youtube-dl and store them on your server'
          readme_file: 'README.md'