publish-docker.yaml

# publish docker image
# - https://docs.github.com/en/free-pro-team@latest/actions/guides/publishing-docker-images
# - https://github.com/docker/build-push-action

name: Build & Push
on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version (optional)'
        required: false
  push:
    tags:
      - v*
jobs:
  build_and_push:
    name: Build & Push
    runs-on: ubuntu-latest
    steps:
      - name: Set variables
        id: variables
        run: |
          PROJECT="edgecraft-designer"
          VERSION="${{ github.event.inputs.version }}"
          REGISTRY="ghcr.io/${{ github.repository_owner }}"
          if [[ $VERSION == "" ]]; then
            GITHUB_REF="${{ github.ref }}"
            if [[ $GITHUB_REF == refs/tags/* ]]; then
              VERSION=${GITHUB_REF#refs/tags/}
            elif [[ $GITHUB_REF == refs/heads/* ]]; then
              VERSION="$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')-$(date '+%Y%m%d')"
            elif [[ $GITHUB_REF == refs/pull/* ]]; then
              VERSION="pr-${{ github.event.number }}"
            fi
          fi
          echo ::set-output name=prefix::${REGISTRY}
          echo ::set-output name=version::${VERSION}
          echo ::set-output name=project::${PROJECT}
      - name: Check out the repository
        uses: actions/checkout@v2
#      - name: Login GHCR
#        uses: docker/login-action@v1 
#        with:
#          registry: ghcr.io
#          username: ${{ github.actor }}
#          password: ${{ secrets.GITHUB_TOKEN }}
#      - name: Build docker image [${{steps.variables.outputs.project}}]
#        uses: docker/build-push-action@v2
#        with:
#          context: .
#          file: ./Dockerfile
#          push: true
#          tags: |
#            ${{steps.variables.outputs.prefix}}/${{steps.variables.outputs.project}}:${{steps.variables.outputs.version}}
#            ${{steps.variables.outputs.prefix}}/${{steps.variables.outputs.project}}:latest
      # release
      - name: Release
        uses: actions/create-release@v1
        id: create_release
        with:
          draft: false
          prerelease: true
          release_name: Release ${{ steps.variables.outputs.version }}
          tag_name: ${{ steps.variables.outputs.version }}
        env:
          GITHUB_TOKEN: ${{ github.token }}