AFSC (Apple File System Compression) tool is an utility that can be used to apply HFS+ compression to file(s), decompress HFS+ compressed file(s), or get information about existing HFS+ compressed file(s). Mac OS 10.6 or later is required. Latest version is 1.6.4 (build 34) Download LinkExtracted automatically from Afsctool homepage
brew install afsctool
This formula has no dependencies.