dockerhub.yml

name: Docker (Docker Hub)

on:
  push:
    tags: ["v*"]

permissions:
  contents: write

env:
  # Default image name: <dockerhub-username>/hearth
  # If your Docker Hub repo name is different, change this to e.g. "${{ secrets.DOCKERHUB_USERNAME }}/<repo>".
  IMAGE_NAME: ${{ secrets.DOCKERHUB_USERNAME }}/hearth

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

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Login to Docker Hub
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.IMAGE_NAME }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
          flavor: |
            latest=true

      - name: Determine version
        id: version
        run: echo "version=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"

      - name: Build and push (multi-arch)
        uses: docker/build-push-action@v7
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: VERSION=${{ steps.version.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Build release notes
        if: startsWith(github.ref, 'refs/tags/v')
        id: notes
        run: |
          TAG="${GITHUB_REF#refs/tags/}"
          PREV_TAG=$(git tag --sort=-v:refname | grep -A1 "^${TAG}$" | tail -1)
          # Get commit messages between previous tag and this tag
          if [ -n "$PREV_TAG" ] && [ "$PREV_TAG" != "$TAG" ]; then
            COMMITS=$(git log --pretty=format:"- %s" "${PREV_TAG}..${TAG}" | grep -v "Co-Authored-By")
            BODY=$(printf "## What's Changed\n\n%s\n\n**Full Changelog**: https://github.com/${{ github.repository }}/compare/%s...%s" "$COMMITS" "$PREV_TAG" "$TAG")
          else
            MSG=$(git log -1 --pretty=format:"%b" "$TAG" | grep -v "Co-Authored-By" || true)
            SUBJECT=$(git log -1 --pretty=format:"%s" "$TAG")
            BODY=$(printf "## What's Changed\n\n- %s\n\n%s" "$SUBJECT" "$MSG")
          fi
          # Write to file to preserve newlines
          echo "$BODY" > /tmp/release_notes.md

      - name: Create GitHub Release
        if: startsWith(github.ref, 'refs/tags/v')
        uses: softprops/action-gh-release@v3
        with:
          body_path: /tmp/release_notes.md