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name: Docker Hub

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:

env:
  IMAGE_NAME: ${{ vars.DOCKERHUB_REPOSITORY != '' && vars.DOCKERHUB_REPOSITORY || 'noxway/privacy-guard-proxy' }}

jobs:
  build-push:
    name: Build and push image
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Read version
        id: version
        run: |
          VERSION=$(tr -d '[:space:]' < VERSION)
          echo "value=${VERSION}" >> "$GITHUB_OUTPUT"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=${{ steps.version.outputs.value }}
            type=ref,event=tag
            type=raw,value=latest,enable=${{ github.ref_type == 'tag' || github.event_name == 'workflow_dispatch' }}

      - name: Build and push image
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Update Docker Hub description
        continue-on-error: true
        uses: peter-evans/dockerhub-description@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: ${{ env.IMAGE_NAME }}
          readme-filepath: ./Readme.md