build.yml

name: "Build and Push"

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  build-image:
    name: Build image
    runs-on: ubuntu-latest
    timeout-minutes: 30
    strategy:
      matrix:
        # Allow list of models
        include:
          - backend_dir_name: segment_anything_model
            backend_tag_name: sam-v0
          - backend_dir_name: llm_interactive
            backend_tag_name: llm-v7
    env:
      IMAGE_NAME: heartexlabs/label-studio-ml-backend
      examples_dir: label_studio_ml/examples
      backend_dir_name: ${{ matrix.backend_dir_name }}
      backend_tag_name: ${{ matrix.backend_tag_name }}
    steps:
      - uses: actions/checkout@v3
        with:
          ref: "${{ env.GITHUB_SHA }}"
          fetch-depth: 0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2.9.1

      - name: Check for Changes in Directory
        id: check_changes
        shell: bash
        run: |
          changes=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} -- "${{ env.examples_dir }}/${{ env.backend_dir_name }}" || true)
          if [ -z "$changes" ]; then
            echo "No changes in directory ${{ matrix.dir }}. Exiting job."
            echo "skip=true" >> $GITHUB_OUTPUT
          else
            echo "Changes detected in directory ${{ matrix.dir }}."
            echo "skip=false" >> $GITHUB_OUTPUT
          fi

      - name: Login to DockerHub
        if: ${{ steps.check_changes.outputs.skip != 'true' && !github.event.pull_request.head.repo.fork }}
        uses: docker/login-action@v2.2.0
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Push Docker image
        if: steps.check_changes.outputs.skip != 'true'
        uses: docker/build-push-action@v4.1.1
        id: docker_build_and_push
        with:
          context: ${{ env.examples_dir }}/${{ env.backend_dir_name }}
          push: true
          tags: ${{ env.IMAGE_NAME }}:${{ env.backend_tag_name }}
          cache-from: type=gha
          cache-to: type=gha,mode=max