name: '[docker] CI for releases'

on:
  push:
    branches:
      - master
    paths:
      - 'lib/**'
      - '.github/workflows/docker-release.yml'
      - 'Dockerfile'
      - 'package.json'
      - 'yarn.lock'
  workflow_dispatch: ~

jobs:
  check-env:
    runs-on: ubuntu-latest
    outputs:
      check-docker: ${{ steps.check-docker.outputs.defined }}
    steps:
      - id: check-docker
        env:
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
        if: ${{ env.DOCKER_USERNAME != '' }}
        run: echo "::set-output name=defined::true"
  release:
    runs-on: ubuntu-latest
    needs: check-env
    if: needs.check-env.outputs.check-docker == 'true'
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

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

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ secrets.DOCKER_USERNAME }}/rsshub
          tags: |
            type=raw,value=latest,enable=true
            type=raw,value={{date 'YYYY-MM-DD'}},enable=true
          flavor: latest=false

      - name: Build and push Docker image
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64,linux/arm/v7,linux/arm64
          cache-from: type=gha,scope=docker-release
          cache-to: type=gha,mode=max,scope=docker-release