name: builder
on:
   pull_request:
      types:
         - closed
      paths:
         - 'VERSION'
   workflow_dispatch:
   push:
      branches: dev
      paths:
         - VERSION
      tags-ignore:
         - '*'
jobs:
   build:
      if: github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch' || github.event_name == 'push'
      runs-on: ubuntu-latest
      permissions:
         packages: write
      steps:
         - name: checkout
           uses: actions/checkout@main
         - name: login to ghcr
           uses: docker/login-action@v1
           with:
             registry: ghcr.io
             username: ${{github.actor}}
             password: ${{secrets.GITHUB_TOKEN}}
         - name: get version
           id: get_version
           run: |
            input_file="VERSION"
            while read line
            do
              file_text=$line
            done < "$input_file"
            echo ::set-output name=version::$file_text
         - name: build images
           run: |
            docker build ./api --tag ghcr.io/greysoh/api:${{ steps.get_version.outputs.version }}
            docker push ghcr.io/greysoh/api:${{ steps.get_version.outputs.version }}