Maven Dependency Conflict Analyzer Plugin

🔍 Compare Maven dependency conflicts between Git branches to identify changes introduced by feature branches.

Overview

This plugin analyzes how your feature branch changes affect Maven dependency resolution by comparing conflicts between your current branch and a base branch. Perfect for understanding dependency impacts before merging.

Key Benefits:

• 🌿 Branch Comparison - Compare conflicts between any two branches
• 📊 Detailed Analysis - Shows conflict counts and details
• 🚀 CI/CD Ready - Easy integration with build pipelines
• ⚙️ Configurable - Flexible configuration options

Quick Start

Prerequisites: Java 8+, Maven 3.6.3+, Git repository

1. Install the plugin:

   git clone https://github.com/aezo/conflict-diff-maven-plugin.git
   cd conflict-diff-maven-plugin
   mvn clean install

2. Run analysis in your project:

   cd /path/to/your/maven/project
   mvn com.github.aezo:conflict-diff-maven-plugin:1.0.0-SNAPSHOT:analyze -Dconflict-diff.baseBranch=main

3. Optional - Add plugin group to ~/.m2/settings.xml for shorter commands:

   <pluginGroups>
      <pluginGroup>com.github.aezo</pluginGroup>
   </pluginGroups>

   Then use: mvn conflict-diff:analyze -Dconflict-diff.baseBranch=main

Usage Examples

Basic Commands

# Compare current branch with main
mvn conflict-diff:analyze -Dconflict-diff.baseBranch=main

# Enable debug output
mvn conflict-diff:analyze -Dconflict-diff.debug=true

# Multi-module projects - specific modules
mvn conflict-diff:analyze -pl module1,module2

Configuration Options

• baseBranch - Branch to compare against (default: develop)
• debug - Enable verbose output (default: false)
• skipConflictDiff - Skip plugin execution (default: false)

💡 For detailed configuration, examples, and CI/CD integration: PLUGIN-USAGE.md

Alternative: Bash Script

Prefer command-line tools? Use the included bash script:

chmod +x scripts/mvn-conflict-diff
export PATH="${PATH}:/path/to/scripts/mvn-conflict-diff"
mvn-conflict-diff

📖 Script documentation

Common Issues

Plugin not found? Use full coordinates:

mvn com.github.aezo:conflict-diff-maven-plugin:1.0.0-SNAPSHOT:analyze

Wrong default branch? Specify your branch:

mvn conflict-diff:analyze -Dconflict-diff.baseBranch=main

💡 More troubleshooting: PLUGIN-USAGE.md

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit changes (git commit -m 'Add amazing feature')
4. Push to branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Development:

git clone https://github.com/your-username/conflict-diff-maven-plugin.git
cd conflict-diff-maven-plugin
mvn clean install

License

Licensed under the terms in LICENSE file.