ci.yml

name: CI
on:
  workflow_dispatch:
  push:
    paths-ignore:
      - .gitignore
      - "*.md"
  pull_request:
    paths-ignore:
      - .gitignore
      - "*.md"

jobs:
  test:
    runs-on: ubuntu-latest
    container: docker.io/luigi311/low-power-image-processing-base-image:latest
    
    steps:
      - uses: actions/checkout@v3

      - name: Install deps
        run: |
          pip install -r requirements.txt
          pip install py pytest-parallel
          chmod +x download_models.sh
          ./download_models.sh

      - name: Run tests
        run: |
          python test/generate_images.py
          pytest --workers auto

  bench:
    needs:
      - test
    runs-on: ubuntu-latest
    container: 
      image: docker.io/luigi311/low-power-image-processing-base-image:latest
      options: --privileged

    steps:
      # Install git so checkout will clone via git
      - name: Apt deps
        run: |
          apt-get update
          apt-get install -y valgrind git

      - uses: actions/checkout@v3
        with:
          fetch-depth: 2

      - name: Install deps
        run: |
          pip install -r requirements.txt
          chmod +x download_models.sh
          ./download_models.sh

      - name: Run benchmarks
        run: |
          python test/benchmarking/cachegrind.py python all_in_one.py test/images --internal_image_extension png --histogram_method histogram_clahe --scale_down 540 --auto_stack --stack_method ECC --stack_amount 2 2> /dev/null > /dev/null
          mv benchmark.txt /tmp/current.txt
          cat /tmp/current.txt
      
      # If commit is not a pull request checkout previous commit
      - name: Checkout previous commit (push)
        if: github.event_name == 'push'
        run: |
          git config --global --add safe.directory /__w/Low-Power-Image-Processing/Low-Power-Image-Processing
          git checkout HEAD^1
      
      # If commit is a pull request checkout base branch
      - name: Checkout base branch (pull request)
        if: github.event_name == 'pull_request'
        uses: actions/checkout@v3
        with:
          ref: ${{ github.base_ref }}

      - name: Install deps
        run: |
          pip install -r requirements.txt
          chmod +x download_models.sh
          ./download_models.sh
      
      - name: Run benchmarks
        run: |
          rm -f test/images/*.hdf5 test/images/*.png
          python test/benchmarking/cachegrind.py python all_in_one.py test/images --internal_image_extension png --histogram_method histogram_clahe --scale_down 540 --auto_stack --stack_method ECC --stack_amount 2 2> /dev/null > /dev/null
          cat benchmark.txt

      - name: Compare benchmarks
        run: python test/benchmarking/compare.py benchmark.txt /tmp/current.txt

  docker:
    needs:
      - test
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Docker meta
        id: docker_meta
        env:
          DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
        if: "${{ env.DOCKERHUB_USERNAME != '' }}"
        uses: docker/metadata-action@v4
        with:
          images: ${{ secrets.DOCKERHUB_USERNAME }}/low-power-image-processing
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

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

      - name: Login to DockerHub
        if: "${{ steps.docker_meta.outcome == 'success' }}"
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build
        id: build
        if: "${{ steps.docker_meta.outcome == 'skipped' }}"
        uses: docker/build-push-action@v3
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: false
          tags: low-power-image-processing:action

      - name: Build Push
        id: build_push
        if: "${{ steps.docker_meta.outcome == 'success' }}"
        uses: docker/build-push-action@v3
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}

      # Echo digest so users can validate their image
      - name: Image digest
        if: "${{ steps.docker_meta.outcome == 'success' }}"
        run: echo "${{ steps.build_push.outputs.digest }}"