name: Docker

on:
    push:
        branches:
            - "master"
        tags:
            - "v*"
    pull_request:
        branches:
            - "master"

jobs:
    docker:
        runs-on: ubuntu-latest
        steps:
            - name: Checkout
              uses: actions/checkout@v2
              with:
                  submodules: "recursive"
            - name: Docker meta
              id: meta
              uses: docker/metadata-action@v3
              with:
                  images: name/app
            - name: Login to DockerHub
              if: github.event_name != 'pull_request'
              uses: docker/login-action@v1
              with:
                  username: ${{ secrets.DOCKERHUB_USERNAME }}
                  password: ${{ secrets.DOCKERHUB_TOKEN }}
            - name: Build and push
              uses: docker/build-push-action@v2
              with:
                  context: .
                  push: ${{ github.event_name != 'pull_request' }}
                  tags: ${{ steps.meta.outputs.tags }}
                  labels: ${{ steps.meta.outputs.labels }}