build-push.yml

name: build-push
run-name: |
  build-push:
  ${{ github.event.inputs.versioned == 'true' && 'versioned , ' || ', ' }}
  ${{ github.event.inputs.latest == 'true' && 'latest , ' || ', ' }}
  ${{ github.event.inputs.custom_tag != '' && github.event.inputs.custom_tag || '' }}

on:
  workflow_dispatch:
    inputs:
      versioned:
        description: 'Push with versioned tag?'
        required: true
        type: boolean
        default: true
      latest:
        description: 'Push with "latest" tag?'
        required: true
        type: boolean
        default: true
      custom_tag:
        description: 'Specify a custom tag to push'
        required: false
        type: string
        default: ""

jobs:
  build-test-push:
    runs-on: ubuntu-latest
    permissions: write-all
    steps:

      - name: Checkout
        uses: actions/checkout@v3

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

      - name: Build
        uses: docker/build-push-action@v4
        with:
          context: .
          load: true
          tags: sandpaper:testing

      # - name: Test
      #   run: |
      #     expected=""
      #     actual=""
      #     if [ "$expected" = "$actual" ]; then
      #       echo "Passed -   $actual"
      #     else
      #       echo "ERROR - Expected: $expected"
      #       echo "          Actual: $actual"
      #       status=1
      #     fi

      #     exit $status

      - name: Create tag from sandpaper, varnish and pandoc versions
        id: tag
        run: |
          sandpaper=$(grep "ARG sandpaper_version=" Dockerfile | cut -f2 -d"=")
          varnish=$(grep "ARG varnish_version=" Dockerfile | cut -f2 -d"=")
          pandoc=$(grep "ARG pandoc_version=" Dockerfile | cut -f2 -d"=")
          versions=s${sandpaper}-v${varnish}-p${pandoc}
          echo "Versioned tag: ${versions}"
          echo "versions=${versions}" >> $GITHUB_OUTPUT

      - name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push versioned
        if: github.event.inputs.versioned == 'true'
        run: |
          docker image tag sandpaper:testing ghcr.io/uomresearchit/sandpaper:${{ steps.tag.outputs.versions }}
          docker push ghcr.io/uomresearchit/sandpaper:${{ steps.tag.outputs.versions }}

      - name: Push latest
        if: github.event.inputs.latest == 'true'
        run: |
          docker image tag sandpaper:testing ghcr.io/uomresearchit/sandpaper:latest
          docker push ghcr.io/uomresearchit/sandpaper:latest

      - name: Push custom_tag
        if: github.event.inputs.custom_tag != ''
        run: |
          docker image tag sandpaper:testing ghcr.io/uomresearchit/sandpaper:${{ github.event.inputs.custom_tag }}
          docker push ghcr.io/uomresearchit/sandpaper:${{ github.event.inputs.custom_tag }}