Code Duplicate Detector

A powerful VS Code extension that finds duplicate code blocks across your project and suggests consolidation opportunities.

Features

• Smart Detection: Uses AST parsing for JavaScript/TypeScript and line-based analysis for other languages
• Configurable Similarity: Adjust similarity thresholds to find exact or near-duplicate code
• Multiple Views: Tree view for quick navigation and detailed webview report
• File Navigation: Click to jump directly to duplicate code locations
• Customizable Patterns: Configure which files to include/exclude from scanning

Usage

1. Scan Workspace: Use Ctrl+Shift+P and search for "Scan for Duplicate Code"
2. View Results: Check the "Duplicate Code" panel in the Explorer sidebar
3. Detailed Report: Click the preview icon to open a comprehensive HTML report
4. Navigate: Click on any file in the results to jump to the duplicate code

Configuration

Access settings via File > Preferences > Settings and search for "Code Duplicate Detector":

• minLines: Minimum number of lines for duplicate detection (default: 5)
• similarity: Similarity threshold 0.1-1.0 (default: 0.8)
• excludePatterns: File patterns to exclude from scanning
• includePatterns: File patterns to include in scanning

Commands

• Scan for Duplicate Code: Start scanning the workspace
• Clear Results: Clear all duplicate detection results
• Show Duplicate Report: Open detailed HTML report

Supported Languages

• JavaScript (.js)
• TypeScript (.ts)
• React (.jsx, .tsx)
• Python (.py)
• Java (.java)
• C/C++ (.c, .cpp)
• C# (.cs)

Installation

1. Install from VS Code Marketplace
2. Or install manually:

   code --install-extension code-duplicate-detector-1.0.0.vsix