name: Docker image release
on:
  workflow_dispatch:

jobs:
  buildx-dockerhub:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: true

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

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

      - name: Cache Docker layers
        uses: actions/cache@v3
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Lower case
        id: string
        uses: ASzc/change-string-case-action@v2
        with:
          string: ${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}

      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/386
          push: true
          tags: ${{ steps.string.outputs.lowercase }}:latest
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max

      - name: Sync README.md
        uses: ms-jpq/sync-dockerhub-readme@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: ${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}
          readme: "./README.md"

      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache