docker.yml

name: Build, Push & Release

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to build (leave empty for automatic versioning)'
        required: false
        type: string
  push:
    branches: [ main ]
    tags: [ 'v*' ]
  pull_request:
    branches: [ main ]

env:
  REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

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

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

      - name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=tag
            type=raw,value=latest,enable={{is_default_branch}}
            type=raw,value={{date 'YYYYMMDD'}}-{{sha}},enable={{is_default_branch}}

      - name: Calculate version
        id: version
        run: |
          if [[ -n "${{ github.event.inputs.version }}" ]]; then
            # Use manually specified version
            VERSION="${{ github.event.inputs.version }}"
          elif [[ $GITHUB_REF == refs/tags/* ]]; then
            # If this is a tag, use the tag version
            VERSION=${GITHUB_REF#refs/tags/}
            VERSION=${VERSION#v}
          else
            # Try to get the latest tag, if none exists, start from v0.0.0
            LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
            LATEST_TAG=${LATEST_TAG#v}

            # Get the commit count from the beginning of the repository
            # This ensures we always have a valid number even with no tags
            COMMITS_SINCE_TAG=$(git rev-list --count HEAD)

            # Split version into major and minor
            MAJOR=$(echo $LATEST_TAG | cut -d. -f1)
            MINOR=$(echo $LATEST_TAG | cut -d. -f2)

            # If we couldn't parse the version properly, default to 0.0
            if [[ -z "$MAJOR" ]] || [[ -z "$MINOR" ]]; then
              MAJOR=0
              MINOR=0
            fi

            # Calculate new version
            VERSION="${MAJOR}.${COMMITS_SINCE_TAG}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}
            ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILDKIT_INLINE_CACHE=1
          provenance: false
          sbom: false

  release:
    if: startsWith(github.ref, 'refs/tags/v')
    needs: build-and-push
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check for release notes file
        id: notes
        run: |
          if [[ -f RELEASE_NOTES.md ]]; then
            echo "has_notes=true" >> $GITHUB_OUTPUT
          else
            echo "has_notes=false" >> $GITHUB_OUTPUT
          fi

      - name: Create GitHub Release (with custom notes)
        if: steps.notes.outputs.has_notes == 'true'
        uses: softprops/action-gh-release@v2
        with:
          body_path: RELEASE_NOTES.md
          generate_release_notes: false

      - name: Create GitHub Release (auto-generated notes)
        if: steps.notes.outputs.has_notes == 'false'
        uses: softprops/action-gh-release@v2
        with:
          generate_release_notes: true