build.yml

name: build

on:
  push:
    branches: [ main ]
    # Run when container or environment is changed
    paths:
        - containers/dockerfile_cpu
        - environment.yml
  # Allows workflow to be manually triggered
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: cmelab/grits
  DOCKERFILE: containers/dockerfile_cpu

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@main
        with:
          fetch-depth: 0

      - name: Get Latest Version
        id: latest-version
        run: |
          LATEST_TAG=$(git describe --tags $(git rev-list --tags --max-count=1))
          echo $LATEST_TAG
          echo "LATEST_TAG=$LATEST_TAG" >> $GITHUB_OUTPUT
          # slice off the v, ie v0.7.2 -> 0.7.2
          VERSION=${LATEST_TAG:1}
          echo $VERSION
          echo "VERSION=$VERSION" >> $GITHUB_OUTPUT

      - name: Print Latest Version
        run: echo ${{ steps.latest-version.outputs.VERSION }}

      - name: Create fully qualified image registry path
        id: fqirp
        run: |
          FQIRP=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.latest-version.outputs.VERSION }}
          echo "FQIRP=$FQIRP" >> $GITHUB_OUTPUT

      - name: Print FQIRP
        run: echo ${{ steps.fqirp.outputs.FQIRP  }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build Docker Image
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ${{ env.DOCKERFILE }}
          load: true
          push: false
          tags: ${{ steps.latest-version.outputs.VERSION }}
          labels: ${{ steps.latest-version.outputs.VERSION }}
          build-args: |
            VERSION=${{ steps.latest-version.outputs.VERSION }}
            
      - name: Test image
        run: |
          docker run --rm ${{ steps.fqirp.outputs.FQIRP }} python -c "import grits; print(grits.__version__)"
      
      - name: Push Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: .
          file: ${{ env.DOCKERFILE }}
          push: true
          tags: ${{ steps.latest-version.outputs.VERSION }}
          labels: ${{ steps.latest-version.outputs.VERSION }}
          build-args: |
            VERSION=${{ steps.latest-version.outputs.VERSION }}