name: Build and Publish Next Docker Image
on:
  push:
    branches:
      - master

jobs:
  publish-docker-next:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
        with:
          version: v0.9.1

      - name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Set Git Short SHA
        run: echo "SHORT_SHA=${GITHUB_SHA::7}" >> $GITHUB_ENV

      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          push: true
          tags: shieldsio/shields:next
          build-args: |
            version=${{ env.SHORT_SHA }}
