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Detect semantic code similarities using similarity-rs. Creates refactoring plans for duplicate code.
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| name | similarity |
| description | Detect semantic code similarities using similarity-rs. Creates refactoring plans for duplicate code. |
similarity-rs to detect code similarities# Basic scan
similarity-rs ./src
# With threshold
similarity-rs ./src --threshold 0.85
# Skip test functions
similarity-rs ./src --skip-test
# Show code in output
similarity-rs ./src --print
# Strict detection (95%+)
similarity-rs ./src --threshold 0.95 --skip-test
# Include type similarity
similarity-rs ./src --experimental-types
# CI integration
similarity-rs ./src --threshold 0.95 --skip-test --fail-on-duplicates
| Option | Description | Default |
|---|---|---|
-t, --threshold | Similarity threshold (0.0-1.0) | 0.85 |
-m, --min-lines | Minimum lines | 3 |
--min-tokens | Minimum tokens | 30 |
-p, --print | Show code in output | - |
--skip-test | Skip test functions | - |
--exclude | Exclude directories | - |
--experimental-types | Check type similarity | - |
--fail-on-duplicates | Exit 1 if duplicates found | - |
| Similarity | Category | Action |
|---|---|---|
| 95%+ | Near-exact duplicate | Extract to common function |
| 85-95% | Structural similarity | Consider generics/traits |
| < 85% | Possible false positive | Review manually |
# 1. Detect similar code
similarity-rs ./src --threshold 0.85 --skip-test
# 2. Check coupling impact
cargo run -- coupling ./src
# 3. Visualize in Web UI
cargo run -- coupling --web ./src
similarity-rs . --threshold 0.8 --skip-testsimilarity-rs ./src --threshold 0.95 --printsimilarity-rs ./src --experimental-types --threshold 0.85