name: opentrashmail ci

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: $(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
          DOCKER_IMAGE_HUB="docker.io/${{ env.IMAGE_NAME }}"
          VERSION=latest
          SHORTREF=${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}"
          TAGS_HUB="${DOCKER_IMAGE_HUB}:${VERSION},${DOCKER_IMAGE_HUB}:${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"
            TAGS_HUB="$TAGS_HUB,${DOCKER_IMAGE_HUB}:latest"
          fi

          # Set output parameters.
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=docker_image::${DOCKER_IMAGE}

          echo ::set-output name=tags_hub::${TAGS_HUB}
          echo ::set-output name=docker_image_hub::${DOCKER_IMAGE_HUB}

      - 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: Log in to Github Packages
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          registry: docker.io
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and push to GHCR
        uses: docker/build-push-action@v2
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          file: docker/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.prep.outputs.tags }}

      - name: Build and push to Docker Hub
        uses: docker/build-push-action@v2
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          file: docker/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.prep.outputs.tags_hub }}