ci.yml

# On push: build latest images

name: CI

on:
  push:
    branches: [ master ]
    tags:
      - "v?[0-9]+.[0-9]+.[0-9]+*"
  pull_request:

jobs:
  build-pypy-dicomweb:
    name: Build pypx-DICOMweb
    runs-on: ubuntu-22.04

    steps:
    - name: Decide image tags
      id: info
      shell: python
      run: |
        import os
        import itertools
        
        registries = ['docker.io', 'ghcr.io']
        repos = ['fnndsc/pypx-dicomweb']
        if '${{ github.ref_type }}' == 'branch':
            tags = ['latest']
        elif '${{ github.ref_type }}' == 'tag':
            tags = ['latest', '${{ github.ref_name }}']
        else:
            tags = []

        def join_tag(t):
            registry, repo, tag = t
            return f'{registry}/{repo}:{tag}'

        product = itertools.product(registries, repos, tags)
        tags_csv = ','.join(map(join_tag, product))
        push = 'true' if tags_csv else 'false'

        with open(os.environ['GITHUB_OUTPUT'], 'a') as out:
            out.write(f'tags={tags_csv}\n')
            out.write(f'push={push}\n')

    - uses: docker/setup-buildx-action@v3
    - name: Login to DockerHub
      if: github.event_name == 'push' || github.event_name == 'release'
      id: dockerhub_login
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_PASSWORD }}
    - name: Login to GitHub Container Registry
      if: github.event_name == 'push' || github.event_name == 'release'
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}
    - name: Build image
      uses: docker/build-push-action@v5
      id: docker_build
      with:
        file: ./pypx-DICOMweb.Dockerfile
        tags: ${{ steps.info.outputs.tags }}
        push: ${{ steps.info.outputs.push }}
        cache-from: type=gha
        cache-to: type=gha,mode=max