diff --git a/doc/docusaurus/docs/3_other_notable_packages.md b/doc/docusaurus/docs/3_other_notable_packages.md index a749d515..342db05b 100644 --- a/doc/docusaurus/docs/3_other_notable_packages.md +++ b/doc/docusaurus/docs/3_other_notable_packages.md @@ -36,3 +36,33 @@ providing an objective way to find and fix overly complex logic and routines. - **Links**: [pub.dev](https://pub.dev/packages/cognitive_complexity) · [GitHub](https://github.com/kevmoo/analytica.dart/tree/main/packages/cognitive_complexity) + +--- + +## [dedupe](https://pub.dev/packages/dedupe) + +[![pub package](https://img.shields.io/pub/v/dedupe.svg)](https://pub.dev/packages/dedupe) + +High-performance code duplication and clone detection engine and CLI tool for +Dart and Flutter. + +It uses a polynomial rolling hash engine with maximal bidirectional expansion to +detect token-level, structural, and parameterized code clones across packages. + +- **Links**: [pub.dev](https://pub.dev/packages/dedupe) · + [GitHub](https://github.com/kevmoo/analytica.dart/tree/main/packages/dedupe) + +### Comparison: `avoid_duplicate_code` vs `dedupe` + +| Feature | `avoid_duplicate_code` | `dedupe` | +| :--- | :--- | :--- | +| **Tool type** | Dart Analyzer / Linter plugin rule | Standalone CLI tool & Dart library/API | +| **Primary workflow** | Real-time in-IDE feedback and `dart analyze` | Repository auditing, CI/CD checks, PR gating, batch analysis | +| **Core engine** | **AST Subtree Fingerprinting:** AST traversal and Jenkins One-at-a-time hashing | **Hybrid AST & Token Rolling Hash:** Rabin-Karp k-gram indexing and MinHash for gapped matches | +| **Code scope** | Syntactic blocks (functions, methods, closures, control-flow bodies) | Arbitrary token/line sequences (can detect clones across expression boundaries) | +| **Supported clone types** | • **Type 1** (exact copies)
• **Type 2** (syntactic: renamed variables, differing literals) | • **Type 1** (exact copies)
• **Type 2** (syntactic: renamed variables, differing literals)
• **Type 3** (near-miss: copies with insertions, deletions, or statement changes) | +| **Differing literals diffing** | ✅ Detailed diff analysis reporting specific differing literal values | ❌ None (literals are normalized during extraction without per-value diffing) | +| **Git / PR delta integration** | ❌ None (analyzes the current state of workspace files) | ✅ Built-in for PR delta and modified lines scanning | +| **Report formats** | Dart Analysis Server diagnostics (IDE Problems, Related Locations) | Markdown, JSON, GitHub Actions step annotations, plain text | +| **Metrics & statistics** | Duplicate locations and differing literal values | Duplication percentages per file/package, cluster inventories, estimated lines saved | +| **Disk cache usage** | ✅ | ✅ |