CodeDNA Playground

A small Kotlin project that demonstrates computing and comparing fingerprints of code artifacts (ZIP files).

Fingerprint implementation

• content-hash: Computes a SHA‑256 hash over the concatenated contents of all entries inside a ZIP.
• structure-minhash: Computes a MinHash signature based on simple structural features of the ZIP (paths, and size buckets) to estimate Jaccard similarity.
• api-minhash: Computes a MinHash signature over API usages via bytecode to estimate API-level similarity.

Usage

Compute a fingerprint

./gradlew run --args="fingerprint input.zip content-hash"

Compute a fingerprint (API MinHash)

./gradlew run --args="fingerprint input.zip api-minhash"

Compare two archives using MinHash (structure)

./gradlew run --args="compare left.zip right.zip structure-minhash"

License

This project is licensed under the MIT license