Quick Installation / Run
cargo install treepeat💡 What Problem Does Treepeat Solve?
Treepeat analyzes abstract syntax trees across codebases to uncover structural code duplication and similarity patterns. By leveraging Tree-sitter parsers, it successfully ignores superficial formatting differences to flag deeply nested copy-paste anomalies.
⚖️ Pros & Cons Analysis
- Deeper structural detection compared to simple text or token-based linters
- Language-agnostic foundation thanks to robust Tree-sitter integration
- Completely self-hosted open-source tool ensuring internal codebase privacy
- Early-stage open source project with a smaller ecosystem and community
- Requires manual configuration and interpretation of structural match thresholds
⚡ Core Architecture & Key Capabilities
Utilizes robust Tree-sitter parsers for multi-language AST extraction and structural comparison.
Ignores variable renaming, whitespace changes, and formatting quirks to catch true logic duplication.
Detects structural similarity and copy-paste anomalies not just within a single repo, but across entire project portfolios.
🎯 Practical Applications & High-Value Use Cases
Auditing large microservice architectures for copy-pasted boilerplate logic
Refactoring legacy codebases to extract shared internal libraries
Enforcing architectural guidelines and preventing duplicate domain implementations
🔄 Why Choose Treepeat Over SonarQube?
Unlike enterprise tools like SonarQube, Treepeat provides a lightweight, focused AST-centric approach to structural similarity without heavyweight platform overhead.
🎯 Target Audience & Who is this for?
Software architects and senior engineers responsible for codebase health and technical debt reduction across multiple repositories.
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