maven-publish.yml

name: Auto Publish to Maven Central

on:
  push:
    branches: [ main ]

jobs:
  check-and-publish:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          
      - name: Set up JDK 8
        uses: actions/setup-java@v4
        with:
          java-version: '8'
          distribution: 'temurin'
          server-id: central
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
          gpg-private-key: ${{ secrets.GPG_SIGNING_KEY }}
          gpg-passphrase: MAVEN_GPG_PASSPHRASE
          
      - name: Get current version from pom.xml
        id: current-version
        run: |
          CURRENT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
          echo "version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          echo "Current version: $CURRENT_VERSION"
          
      - name: Get latest tag version
        id: latest-tag
        run: |
          # Get all tags starting with 'v' and sort them
          LATEST_TAG=$(git tag -l 'v*' | sort -V | tail -n 1)
          if [ -z "$LATEST_TAG" ]; then
            LATEST_TAG_VERSION="0.0.0"
          else
            LATEST_TAG_VERSION=${LATEST_TAG#v}
          fi
          echo "tag-version=$LATEST_TAG_VERSION" >> $GITHUB_OUTPUT
          echo "Latest tag version: $LATEST_TAG_VERSION"
          
      - name: Compare versions and decide if publish
        id: version-check
        run: |
          CURRENT_VERSION="${{ steps.current-version.outputs.version }}"
          TAG_VERSION="${{ steps.latest-tag.outputs.tag-version }}"
          
          # Function to compare versions
          version_gt() {
            test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
          }
          
          if version_gt "$CURRENT_VERSION" "$TAG_VERSION"; then
            echo "should-publish=true" >> $GITHUB_OUTPUT
            echo "Current version $CURRENT_VERSION is greater than tag version $TAG_VERSION - will publish"
          else
            echo "should-publish=false" >> $GITHUB_OUTPUT
            echo "Current version $CURRENT_VERSION is not greater than tag version $TAG_VERSION - skip publish"
          fi
          
      - name: Build project
        if: steps.version-check.outputs.should-publish == 'true'
        run: mvn clean compile
        
      - name: Publish to Maven Central
        if: steps.version-check.outputs.should-publish == 'true'
        run: mvn -P release --batch-mode deploy -DskipTests
        env:
          MAVEN_USERNAME: ${{ secrets.CENTRAL_TOKEN_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.CENTRAL_TOKEN_PASSWORD }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.GPG_SIGNING_KEY_PASSWORD }}
          
      - name: Create tag and release
        if: steps.version-check.outputs.should-publish == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          VERSION="${{ steps.current-version.outputs.version }}"
          TAG_NAME="v$VERSION"
          
          # Get commits since last release
          LATEST_TAG=$(git tag -l 'v*' | sort -V | tail -n 1)
          if [ -z "$LATEST_TAG" ]; then
            COMMITS=$(git log --oneline --pretty=format:"- %s (%h)")
          else
            COMMITS=$(git log --oneline ${LATEST_TAG}..HEAD --pretty=format:"- %s (%h)")
          fi
          
          # Create release notes with Maven dependencies
          RELEASE_NOTES=$(cat <<EOF
          # Release $VERSION
          
          ## Recent Changes
          $COMMITS
          
          ## Maven Dependencies
          
          \`\`\`xml
          <!-- Main API -->
          <dependency>
              <groupId>top.bella</groupId>
              <artifactId>openai-java-api</artifactId>
              <version>$VERSION</version>
          </dependency>
          
          <!-- HTTP Client -->
          <dependency>
              <groupId>top.bella</groupId>
              <artifactId>openai-java-client</artifactId>
              <version>$VERSION</version>
          </dependency>
          
          <!-- Service Layer -->
          <dependency>
              <groupId>top.bella</groupId>
              <artifactId>openai-java-service</artifactId>
              <version>$VERSION</version>
          </dependency>
          \`\`\`
          EOF
          )
          
          # Create tag
          git tag "$TAG_NAME"
          git push origin "$TAG_NAME"
          
          # Create release
          gh release create "$TAG_NAME" \
            --title "Release $VERSION" \
            --notes "$RELEASE_NOTES" \
            --latest