name: Publish official OCI galleries

on:
  push:
    branches: [master]
    paths:
      - 'gallery/**'
      - 'backend/index.yaml'
      - 'scripts/build/gallery/**'
      - '.github/workflows/gallery_publish.yml'
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: publish-official-galleries
  cancel-in-progress: false

jobs:
  publish:
    if: github.repository == 'mudler/LocalAI' && github.ref == 'refs/heads/master'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write
    env:
      COSIGN_EXPERIMENTAL: '1'
      GALLERY_REPOSITORY: quay.io/go-skynet/local-ai-backends
    strategy:
      matrix:
        include:
          - source: gallery
            tag: gallery-models
          - source: backend
            tag: gallery-backends
    steps:
      - uses: actions/checkout@v7
      - uses: actions/setup-go@v6
        with:
          go-version-file: go.mod
      - name: Test and package gallery
        env:
          GALLERY_SOURCE: ${{ matrix.source }}
        run: |
          go test ./scripts/build/gallery -count=1
          go run ./scripts/build/gallery . "$GALLERY_SOURCE" "$RUNNER_TEMP/gallery"
      - uses: oras-project/setup-oras@v2
        with:
          version: '1.3.0'
      - uses: sigstore/cosign-installer@v3
        with:
          cosign-release: 'v2.6.5'
      - name: Login to Quay.io
        uses: docker/login-action@v4
        with:
          registry: quay.io
          username: ${{ secrets.LOCALAI_REGISTRY_USERNAME }}
          password: ${{ secrets.LOCALAI_REGISTRY_PASSWORD }}
      - name: Publish and sign gallery
        shell: bash
        env:
          GALLERY_TAG: ${{ matrix.tag }}
        run: |
          set -euo pipefail
          cd "$RUNNER_TEMP/gallery"
          files=()
          while IFS= read -r -d '' file; do
            files+=("${file#./}:application/yaml")
          done < <(find . -type f -print0 | sort -z)
          # Publish an immutable revision, then expose latest only after signing.
          ref="$GALLERY_REPOSITORY:$GALLERY_TAG-$GITHUB_SHA"
          oras push --artifact-type application/vnd.localai.gallery.v1 \
            --format json "$ref" "${files[@]}" > "$RUNNER_TEMP/push.json"
          digest=$(jq -er '.digest' "$RUNNER_TEMP/push.json")
          cosign sign --yes --new-bundle-format \
            --registry-referrers-mode=oci-1-1 "$GALLERY_REPOSITORY@$digest"
          oras tag "$GALLERY_REPOSITORY@$digest" "$GALLERY_TAG"