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‎.github/workflows/publish.yml‎

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required: true
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TOKEN_MAVEN:
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required: true
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OSSRH_USERNAME:
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required: false
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OSSRH_PASSWORD:
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required: false
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GPG_PRIVATE_KEY:
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required: false
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GPG_PASSPHRASE:
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required: false
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workflow_dispatch:
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inputs:
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publish_to_maven_central:
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description: 'Publish to Maven Central (requires release branch or tag)'
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required: false
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default: false
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type: boolean
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push:
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tags:
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- 'v*'
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jobs:
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public:
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publish-github:
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runs-on: ubuntu-latest
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if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/v')
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steps:
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with:
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fetch-depth: 0 # fetch-depth 0 needed for version calculation
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- name: Set up OpenJDK 21
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- name: Set up JDK 17
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uses: actions/setup-java@v4
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with:
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java-version: '21'
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java-version: '17'
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distribution: 'temurin'
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- name: Publish
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run: ./gradlew publish
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- name: Setup Gradle
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uses: gradle/gradle-build-action@v3
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- name: Build and test
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run: ./gradlew clean build test
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- name: Publish to GitHub Packages
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run: ./gradlew publishMavenJavaPublicationToGitHubPackagesRepository
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env:
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# GitHub Packages credentials stored as repository secrets
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USERNAME_MAVEN: ${{ secrets.USERNAME_MAVEN }}
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TOKEN_MAVEN: ${{ secrets.TOKEN_MAVEN }}
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publish-maven-central:
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runs-on: ubuntu-latest
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if: |
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(github.event_name == 'workflow_dispatch' && github.event.inputs.publish_to_maven_central == 'true') ||
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(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')) ||
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startsWith(github.ref, 'refs/heads/release/v')
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Set up JDK 17
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uses: actions/setup-java@v4
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with:
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java-version: '17'
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distribution: 'temurin'
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- name: Setup Gradle
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uses: gradle/gradle-build-action@v3
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- name: Import GPG key
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if: secrets.GPG_PRIVATE_KEY != ''
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uses: crazy-max/ghaction-import-gpg@v6
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with:
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gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
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passphrase: ${{ secrets.GPG_PASSPHRASE }}
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- name: Validate publishing configuration
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run: ./gradlew validatePublishingConfiguration
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env:
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OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
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OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
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- name: Build and test
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run: ./gradlew clean build test
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- name: Publish to Maven Central (Staging)
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if: startsWith(github.ref, 'refs/heads/release/v') || github.event_name == 'workflow_dispatch'
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run: ./gradlew publishToSonatype
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env:
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OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
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OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
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- name: Publish and Release to Maven Central
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if: startsWith(github.ref, 'refs/tags/v')
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run: ./gradlew publishAndRelease
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env:
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OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
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OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
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- name: Create GitHub Release
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if: startsWith(github.ref, 'refs/tags/v')
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uses: softprops/action-gh-release@v1
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with:
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generate_release_notes: true
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files: |
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build/libs/*.jar
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build/publications/mavenJava/pom-default.xml

‎MAVEN_CENTRAL_SETUP.md‎

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# Maven Central Publishing Setup - Summary
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This project has been successfully configured for publishing to Maven Central. Here's a summary of all the changes made:
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## ✅ Configuration Files Added/Modified
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### 1. `gradle.properties` (NEW)
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- Contains all publishing configuration properties
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- Includes signing configuration options
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- Provides project metadata (description, URLs, license, etc.)
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- Supports both local file and environment variable configuration
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### 2. `build.gradle.kts` (UPDATED)
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- Added `io.github.gradle-nexus.publish-plugin` for automated publishing
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- Enhanced publishing configuration with proper POM metadata
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- Added signing configuration with flexible GPG options
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- Added Maven Central (OSSRH) repository configuration
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- Added validation tasks for publishing requirements
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- Created helper tasks: `publishToMavenCentral` and `publishAndRelease`
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### 3. `PUBLISHING.md` (NEW)
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- Comprehensive guide for Maven Central publishing
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- Step-by-step setup instructions
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- Configuration examples for different scenarios
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- Troubleshooting guide
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- Security best practices
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### 4. `README.md` (UPDATED)
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- Added installation instructions for Maven/Gradle users
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- Includes dependency coordinates for the library
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### 5. `.github/workflows/publish.yml` (UPDATED)
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- Enhanced to support Maven Central publishing
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- Added GPG signing support for CI/CD
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- Supports both staging and automatic release workflows
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- Creates GitHub releases for tagged versions
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## ✅ Features Implemented
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### Publishing Configuration
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- **Maven Central**: Full OSSRH integration with staging and release
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- **GitHub Packages**: Existing functionality preserved
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- **Local Repository**: For testing purposes
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- **Flexible Signing**: Support for both GPG agent and key ring files
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### Validation & Safety
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- **Configuration Validation**: `validatePublishingConfiguration` task
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- **Proper POM Metadata**: All required fields for Maven Central
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- **Dependency Management**: Correct scoping of API vs implementation dependencies
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### Automation
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- **GitHub Actions**: Automated publishing on tags and manual dispatch
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- **Version Management**: Git-based versioning integrated with publishing
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- **Release Creation**: Automatic GitHub releases with artifacts
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## 🔧 Required Setup (Before Publishing)
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To publish to Maven Central, you need:
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### 1. Sonatype OSSRH Account
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```bash
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# Create account at: https://issues.sonatype.org
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# Request access to group ID: dev.dbos
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```
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### 2. GPG Signing Key
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```bash
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# Generate key
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gpg --gen-key
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# Upload to keyserver
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gpg --keyserver keyserver.ubuntu.com --send-keys YOUR_KEY_ID
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```
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### 3. Configuration
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Add to `~/.gradle/gradle.properties`:
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```properties
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ossrhUsername=your-username
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ossrhPassword=your-password
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signing.gnupg.executable=gpg
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```
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Or use environment variables:
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```bash
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export OSSRH_USERNAME=your-username
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export OSSRH_PASSWORD=your-password
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```
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## 🚀 Publishing Commands
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### Test Publishing Configuration
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```bash
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./gradlew validatePublishingConfiguration
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```
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### Build and Generate Artifacts
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```bash
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./gradlew clean build
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```
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### Publish to Staging (Manual Release Required)
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```bash
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./gradlew publishToMavenCentral
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```
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### Publish and Auto-Release
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```bash
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./gradlew publishAndRelease
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```
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### GitHub Actions Automated Publishing
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- **Push to tag `v*`**: Automatically publishes and releases to Maven Central
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- **Release branch**: Publishes to staging (manual release required)
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- **Manual dispatch**: Optional Maven Central publishing
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## 📋 Maven Central Requirements ✅
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All Maven Central requirements are satisfied:
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- ✅ **Group ID**: `dev.dbos` (needs Sonatype approval)
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- ✅ **Artifact ID**: `transact`
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- ✅ **Version**: Semantic versioning with git-based calculation
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- ✅ **Name**: "DBOS Transact"
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- ✅ **Description**: "DBOS Transact: Lightweight Durable Workflows for Java"
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- ✅ **URL**: GitHub repository URL
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- ✅ **License**: MIT License with URL
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- ✅ **Developer Info**: Complete developer information
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- ✅ **SCM Info**: Git repository information
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- ✅ **Sources JAR**: Automatically generated
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- ✅ **Javadoc JAR**: Automatically generated
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- ✅ **GPG Signatures**: Configured for all artifacts
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## 📦 Generated Artifacts
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The build generates the following artifacts for publishing:
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- `transact-{version}.jar` (Main library)
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- `transact-{version}-sources.jar` (Source code)
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- `transact-{version}-javadoc.jar` (API documentation)
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- `transact-{version}.pom` (Maven metadata)
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- All artifacts signed with GPG (when configured)
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## 🔍 Verification
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Check that everything is working:
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```bash
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# Validate configuration
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./gradlew validatePublishingConfiguration
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# Generate POM for review
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./gradlew generatePomFileForMavenJavaPublication
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cat build/publications/mavenJava/pom-default.xml
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# Build all artifacts
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./gradlew clean build publishToMavenLocal
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ls -la ~/.m2/repository/dev/dbos/transact/
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```
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## 🎯 Next Steps
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1. **Setup Sonatype Account**: Create OSSRH account and request `dev.dbos` group access
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2. **Configure GPG**: Generate signing key and configure Gradle
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3. **Test Publishing**: Use staging repository first
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4. **Release Process**: Create release tags for production publishing
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5. **Documentation**: Update project documentation with Maven coordinates
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The project is now fully prepared for Maven Central publishing! 🎉

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