release.yml

name: Create Release and Publish Docker Images

on:
  push:
    branches:
      - release # Trigger when commits are pushed to the release branch (e.g., after merging master)
    paths-ignore:
      - '**.md'
      - 'docs/**'

jobs:
  prepare-release:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.get-version.outputs.version }}
      version_tag: ${{ steps.get-version.outputs.version_tag }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Get version from VERSION file
        id: get-version
        run: |
          VERSION_PLAIN=$(cat VERSION)
          echo "version=${VERSION_PLAIN}" >> $GITHUB_OUTPUT
          echo "version_tag=v${VERSION_PLAIN}" >> $GITHUB_OUTPUT # Add 'v' prefix for tag

  build-images:
    needs: prepare-release
    runs-on: ubuntu-latest
    permissions:
      packages: write # Needed to push images to GHCR
    env:
      DOCKER_BUILDKIT: 1
      BUILDKIT_STEP_LOG_MAX_SIZE: 10485760
      # These environment variables will override the defaults within docker-bake.hcl
      VERSION: ${{ needs.prepare-release.outputs.version_tag }} # Use tag version (vX.Y.Z) for bake
      REGISTRY: ${{ vars.REGISTRY || 'ghcr.io' }} # Override with GitHub Action Environment Variable
      OWNER: ${{ vars.OWNER || 'remsky' }}
      REPO: ${{ vars.REPO || 'kokoro-fastapi' }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Needed to check for existing tags

      - name: Check if tag already exists
        run: |
          TAG_NAME="${{ needs.prepare-release.outputs.version_tag }}"
          echo "Checking for existing tag: $TAG_NAME"
          # Fetch tags explicitly just in case checkout didn't get them all
          git fetch --tags
          if git rev-parse "$TAG_NAME" >/dev/null 2>&1; then
            echo "::error::Tag $TAG_NAME already exists. Please increment the version in the VERSION file."
            exit 1
          else
            echo "Tag $TAG_NAME does not exist. Proceeding with release."
          fi

      - name: Free disk space # Optional: Keep as needed for large builds
        run: |
          echo "Listing current disk space"
          df -h
          echo "Cleaning up disk space..."
          sudo rm -rf /usr/share/dotnet /usr/local/lib/android /opt/ghc /opt/hostedtoolcache
          docker system prune -af
          echo "Disk space after cleanup"
          df -h

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

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3 # Use v3
        with:
          driver-opts: |
            image=moby/buildkit:latest
            network=host

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3 # Use v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push images using Docker Bake
        run: |
          echo "Building and pushing images for version ${{ needs.prepare-release.outputs.version_tag }}"
          # The VERSION env var above sets the tag for the bake file targets
          docker buildx bake --push

  create-release:
    needs: [prepare-release, build-images]
    runs-on: ubuntu-latest
    permissions:
      contents: write # Needed to create releases
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Fetch all history for release notes generation

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2 # Use v2
        with:
          tag_name: ${{ needs.prepare-release.outputs.version_tag }} # Use vX.Y.Z tag
          name: Release ${{ needs.prepare-release.outputs.version_tag }}
          generate_release_notes: true # Auto-generate release notes
          draft: false # Publish immediately
          prerelease: false # Mark as a stable release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}