release.yml

name: Release

on:
  pull_request:
    types: [closed]
    branches: [main]

permissions:
  contents: write
  id-token: write

jobs:
  # ── Step 1: validate versions, create git tag + GitHub Release ─────────────
  prepare:
    if: >
      github.event.pull_request.merged == true &&
      startsWith(github.event.pull_request.title, 'release:')
    runs-on: ubuntu-22.04
    outputs:
      version: ${{ steps.version.outputs.version }}
      tag: ${{ steps.version.outputs.tag }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.RELEASE_TOKEN }}

      - name: Read version
        id: version
        run: |
          VERSION=$(cat VERSION | tr -d '[:space:]')
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "tag=v${VERSION}" >> $GITHUB_OUTPUT
          echo "Releasing ${VERSION}"

      - name: Sync version to all SDK manifests
        run: |
          VERSION=$(cat VERSION | tr -d '[:space:]')
          echo "Syncing version ${VERSION} to all SDK manifests"

          # Python
          sed -i "s/^version = \".*\"/version = \"${VERSION}\"/" python/pyproject.toml

          # langchain-mq9
          sed -i "s/^version = \".*\"/version = \"${VERSION}\"/" langchain-mq9/pyproject.toml

          # JavaScript
          sed -i "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" javascript/package.json

          # Rust
          sed -i "s/^version = \".*\"/version = \"${VERSION}\"/" rust/Cargo.toml

          # Java (only the first <version> tag, which is the project version)
          sed -i "0,/<version>.*<\/version>/s/<version>.*<\/version>/<version>${VERSION}<\/version>/" java/pom.xml

          # C#
          sed -i "s|<Version>.*</Version>|<Version>${VERSION}</Version>|" csharp/Mq9/Mq9.csproj

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add python/pyproject.toml langchain-mq9/pyproject.toml javascript/package.json rust/Cargo.toml java/pom.xml csharp/Mq9/Mq9.csproj
          git diff --cached --quiet || git commit -m "chore: sync SDK versions to ${VERSION}"
          git push

      - name: Create and push git tag
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
        run: |
          TAG="v${{ steps.version.outputs.version }}"
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          if git rev-parse "${TAG}" >/dev/null 2>&1; then
            echo "ERROR: tag ${TAG} already exists"
            exit 1
          fi
          git tag "${TAG}" -m "Release ${TAG}"
          git push origin "${TAG}"
          echo "Pushed tag ${TAG}"

      - name: Create GitHub Release
        uses: ncipollo/release-action@v1
        with:
          tag: ${{ steps.version.outputs.tag }}
          name: ${{ steps.version.outputs.tag }}
          generateReleaseNotes: true
          makeLatest: true
          token: ${{ secrets.RELEASE_TOKEN }}

  # ── Step 2: publish all SDKs in parallel ───────────────────────────────────

  release-langchain-mq9:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Install build tools
        run: pip install build twine
      - name: Build
        working-directory: langchain-mq9
        run: python -m build
      - name: Publish to PyPI
        working-directory: langchain-mq9
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
        run: twine upload dist/*

  release-python:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Install build tools
        run: pip install build twine
      - name: Build
        working-directory: python
        run: python -m build
      - name: Publish to PyPI
        working-directory: python
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
        run: twine upload dist/*

  release-javascript:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          registry-url: "https://registry.npmjs.org"
          cache: npm
          cache-dependency-path: javascript/package-lock.json
      - name: Install dependencies
        working-directory: javascript
        run: npm ci
      - name: Build
        working-directory: javascript
        run: npm run build
      - name: Publish to npm
        working-directory: javascript
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: npm publish --access public

  release-go:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: ${{ needs.prepare.outputs.tag }}
      - name: Push Go module tag
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
          VERSION: ${{ needs.prepare.outputs.version }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git tag "go/v${VERSION}" -m "Go SDK v${VERSION}"
          git push origin "go/v${VERSION}"

  release-rust:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: rust
      - name: Publish to crates.io
        working-directory: rust
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
        run: cargo publish

  release-java:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: actions/setup-java@v4
        with:
          java-version: "17"
          distribution: temurin
          cache: maven
          server-id: central
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
          gpg-passphrase: MAVEN_GPG_PASSPHRASE
      - name: Publish to Maven Central
        working-directory: java
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
        run: mvn --no-transfer-progress deploy -P release

  release-csharp:
    needs: prepare
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.prepare.outputs.tag }}
      - uses: actions/setup-dotnet@v4
        with:
          dotnet-version: "8.0"
      - name: Build and pack
        working-directory: csharp/Mq9
        run: dotnet pack -c Release -o nupkg
      - name: Publish to NuGet
        working-directory: csharp/Mq9
        env:
          NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
        run: dotnet nuget push nupkg/*.nupkg --api-key "$NUGET_API_KEY" --source https://api.nuget.org/v3/index.json

  # ── Step 3: summary ─────────────────────────────────────────────────────────
  summary:
    needs: [prepare, release-langchain-mq9, release-python, release-javascript, release-go, release-rust, release-java, release-csharp]
    runs-on: ubuntu-22.04
    if: always()
    steps:
      - name: Release summary
        run: |
          VERSION="${{ needs.prepare.outputs.version }}"
          cat >> $GITHUB_STEP_SUMMARY << EOF
          ## Release v${VERSION}

          | SDK | Registry | Status |
          |-----|----------|--------|
          | langchain-mq9 | PyPI | ${{ needs.release-langchain-mq9.result }} |
          | Python | PyPI | ${{ needs.release-python.result }} |
          | JavaScript | npm | ${{ needs.release-javascript.result }} |
          | Go | pkg.go.dev | ${{ needs.release-go.result }} |
          | Rust | crates.io | ${{ needs.release-rust.result }} |
          | Java | Maven Central | ${{ needs.release-java.result }} |
          | C# | NuGet | ${{ needs.release-csharp.result }} |

          GitHub Release: https://github.com/${{ github.repository }}/releases/tag/v${VERSION}
          EOF