zip - Official Wyn Package

ZIP archive utilities for Wyn: archive detection, size estimation, and formatting. Pure Wyn, no system dependency. (Create/extract via C bindings is future work.)

Install

wyn pkg install github.com/wynlang/zip

Usage

import zip

// Archive detection
print(zip.zip_is_archive("backup.zip"))          // true
print(zip.zip_is_archive("backup.tar"))          // false

// Rough entry count estimate from archive size
print(zip.zip_entry_count_estimate(524288))      // 512

// Compression ratio as a percentage (compressed/original)
print(zip.zip_compression_ratio(1000, 250))      // 25

// Human-readable sizes
print(zip.zip_human_size(512))                   // 512 B
print(zip.zip_human_size(2560))                  // 2.5 KB

API

Function	Description
zip_is_archive(path)	True if the path ends in .zip
zip_entry_count_estimate(file_size)	Rough entry count (1 per KB)
zip_compression_ratio(original, compressed)	Compressed size as % of original
zip_human_size(bytes)	Format bytes as "N B" / "N.M KB"