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path: root/Impostor-dev/.github/workflows/docker.yml
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name: Docker

on:
  push:
    branches: dev
    paths:
      - 'src/Impostor.Server/**'
      - 'src/Impostor.Shared/**'
      - '.gitmodules'
      - '.github/workflows/docker.yml'
      - 'Dockerfile'
    tags:
      - 'v*.*.*'
  pull_request:
    paths:
      - 'src/Impostor.Server/**'
      - 'src/Impostor.Shared/**'
      - '.gitmodules'
      - '.github/workflows/docker.yml'
      - 'Dockerfile'

jobs:
  push_to_registry:
    name: Push Docker image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          submodules: true
      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=aeonlucid/impostor
          VERSION=noop
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
          elif [[ $GITHUB_REF == refs/heads/* ]]; then
            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
            if [ "${{ github.event.repository.default_branch }}" = "dev" ]; then
              VERSION=nightly
            fi
          elif [[ $GITHUB_REF == refs/pull/* ]]; then
            VERSION=pr-${{ github.event.number }}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          if [[ $VERSION =~ ^v[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi
          echo ::set-output name=version::${VERSION}
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm/v7,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.prep.outputs.tags }}