DBHub

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# Workflow to build and publish Docker images for DBHub
#
# This workflow:
# 1. Always pushes to the 'latest' tag when changes are pushed to the main branch
# 2. If package.json version changes, also pushes a version-specific tag
# 3. Builds for both amd64 and arm64 architectures

name: Publish to docker hub

on:
  push:
    branches: ["main"]

env:
  IMAGE_NAME: bytebase/dbhub

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2 # Fetch two commits to detect changes in package.json

      - name: Check for package.json version changes
        id: check-version
        run: |
          # Get current and previous package.json content
          git show HEAD:package.json > package.json.current
          git show HEAD~1:package.json > package.json.previous 2>/dev/null || cp package.json.current package.json.previous

          # Extract versions
          CURRENT_VERSION=$(jq -r '.version' package.json.current)
          PREVIOUS_VERSION=$(jq -r '.version' package.json.previous)

          echo "Current version: $CURRENT_VERSION"
          echo "Previous version: $PREVIOUS_VERSION"

          # Set output based on whether version changed
          if [ "$CURRENT_VERSION" != "$PREVIOUS_VERSION" ]; then
            echo "Version changed from $PREVIOUS_VERSION to $CURRENT_VERSION"
            echo "VERSION_CHANGED=true" >> $GITHUB_OUTPUT
            echo "VERSION=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          else
            echo "Version unchanged: $CURRENT_VERSION"
            echo "VERSION_CHANGED=false" >> $GITHUB_OUTPUT
          fi

      - 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: Prepare Docker tags
        id: prep
        run: |
          # Always include latest tag
          TAGS="${{ env.IMAGE_NAME }}:latest"

          # Add version tag if version changed
          if [[ "${{ steps.check-version.outputs.VERSION_CHANGED }}" == "true" ]]; then
            VERSION="${{ steps.check-version.outputs.VERSION }}"
            TAGS="$TAGS,${{ env.IMAGE_NAME }}:$VERSION"
            echo "Publishing with tags: latest, $VERSION"
          else
            echo "Publishing with tag: latest only"
          fi

          echo "TAGS=$TAGS" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.prep.outputs.TAGS }}
          cache-from: type=gha
          cache-to: type=gha,mode=max