ci-cd.yml

name: CI/CD

# Trigger the workflow on push or pull request
# Run on all branches and pull request except gh-pages which has it's own action
on:
  push:
    branches-ignore:
      - 'gh-pages'
  pull_request:
    branches-ignore:
      - 'gh-pages'
  release:
    types: [created]

jobs:
  # Build docker images
  build-docker-and-publish:
    runs-on: ubuntu-latest
    # needs: build-and-test-code
    env:
      # Only publish to Docker Hub if the dockerhub username is set, and either happens
      #
      # - we have a change in the development branch
      # - we have a new tag
      DOCKERHUB_PUBLISH: ${{ (github.event_name == 'push' && (github.event.ref == 'refs/heads/development' || startsWith(github.event.ref, 'refs/tags/')) || github.event_name == 'release') && secrets.DOCKERHUB_USERNAME != '' }}
      # In case we run a pull request, the secrets are not available to us. Therefore check first
      # and assign a 'dummy' dockerhub username
      DOCKERHUB_USERNAME: ${{ ( secrets.DOCKERHUB_USERNAME != '' && secrets.DOCKERHUB_USERNAME ) || 'dummy' }}
    strategy:
      matrix:
        include:
        - platform: desktop
          docker-platform: linux/amd64
        - platform: xavier
          docker-platform: linux/arm64
        - platform: nano
          docker-platform: linux/arm64
        - platform: cpu-amd64
          docker-platform: linux/amd64
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - name: Login to Docker Hub
        if: ${{ env.DOCKERHUB_PUBLISH == 'true' }}
        continue-on-error: true
        uses: docker/login-action@v2
        with:
          # Use the secrets directly and not the validated environment DOCKERHUB_USERNAME
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Determine dockerhub tag
        id: dockerhub-tag
        # Determine the dockerhub tag based on if our current working tree points to a tag or not
        # the tags will either be `<tag>-<platform>` or `development-<platform>`
        run: |
          GIT_TAG=$(git tag -l --points-at $(git log -n 1 --format=%H))
          if [ ! -z $GIT_TAG ]; then
            echo "dockerhub-tag=$GIT_TAG-${{ matrix.platform }}"  >> $GITHUB_OUTPUT
          else
            echo "dockerhub-tag=development-${{ matrix.platform }}"  >> $GITHUB_OUTPUT
          fi
      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: ./
          file: docker/build/${{ matrix.platform }}/Dockerfile
          platforms: ${{ matrix.docker-platform }}
          push: ${{ env.DOCKERHUB_PUBLISH == 'true' }}
          tags: ${{ env.DOCKERHUB_USERNAME }}/darknet:${{ steps.dockerhub-tag.outputs.dockerhub-tag }}