main.yml

name: "Build"

on:
  push

jobs:
  # build all the image variants
  build:
    runs-on: ubuntu-latest

    steps:
    # checkout repo
    - uses: actions/checkout@v4

    # setup multi-arch build support
    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get --yes --no-install-recommends install binfmt-support qemu-user-static

    # get branch / tag name
    - name: Get Branch / Tag Name
      id: get_branch
      run: |
        export BRANCH_NAME=$(if [[ ${GITHUB_REF} =~ "refs/tags/" ]]; then echo ${GITHUB_REF/refs\/tags\//}; else echo ${GITHUB_REF/refs\/heads\//}; fi)
        echo $BRANCH_NAME
        echo "BRANCH_NAME=${BRANCH_NAME}" >> $GITHUB_OUTPUT

    # generate the image tag
    - name: Get Image Tag
      id: get_tag
      run: |
        export TARGET_IMAGE_TAG=$(if [ "${{ steps.get_branch.outputs.NAME }}" = "latest" ]; then echo "latest"; else echo "${{ steps.get_branch.outputs.BRANCH_NAME }}"; fi)
        echo $TARGET_IMAGE_TAG
        echo "TARGET_IMAGE_TAG=${TARGET_IMAGE_TAG}" >> $GITHUB_OUTPUT

    # generate the alternative image tag
    - name: Get Alternate Tag
      id: get_alt_tag
      run: |
        export ALT_IMAGE_TAG=$(if [ "${{ steps.get_branch.outputs.NAME }}" = "latest" ]; then echo "ubuntu"; else echo "${{ steps.get_branch.outputs.BRANCH_NAME }}-ubuntu"; fi)
        echo $ALT_IMAGE_TAG
        echo "ALT_IMAGE_TAG=${ALT_IMAGE_TAG}" >> $GITHUB_OUTPUT

    # login to docker hub
    - name: Login to Docker Hub
      if: github.repository == 'homebridge/docker-homebridge'
      run: |
        echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin

    # login to github container registry
    - name: Login to Packages Container registry
      uses: docker/login-action@v3
      if: github.repository == 'homebridge/docker-homebridge'
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    # create docker buildx builder
    - name: Create docker buildx builder
      run: |
        docker buildx create --name multibuilder
        docker buildx use multibuilder

    # build the image for Docker Hub
    - name: Build Image For Docker Hub
      run: |
        docker buildx build --push -f Dockerfile --platform linux/amd64,linux/arm/v7,linux/arm64 -t homebridge/homebridge:${{ steps.get_alt_tag.outputs.ALT_IMAGE_TAG }} .
        docker buildx build --push -f Dockerfile --platform linux/amd64,linux/arm/v7,linux/arm64 -t homebridge/homebridge:${{ steps.get_tag.outputs.TARGET_IMAGE_TAG }} .

    # build the image for Github Container Registry (will use the cached build from the previous step)
    - name: Build Image For Github Container Registry
      run: |
        docker buildx build --push -f Dockerfile --platform linux/amd64,linux/arm/v7,linux/arm64 -t ghcr.io/homebridge/homebridge:${{ steps.get_alt_tag.outputs.ALT_IMAGE_TAG }} .
        docker buildx build --push -f Dockerfile --platform linux/amd64,linux/arm/v7,linux/arm64 -t ghcr.io/homebridge/homebridge:${{ steps.get_tag.outputs.TARGET_IMAGE_TAG }} .