CHECKING::YOU::OUT is DistorteD's file-identification library, originally a ruby-mime-types wrapper/monkey-patch — now its own full implementation of a shared-mime-info parser and in-memory representation.

Designed with speed and memory-efficiency in mind. See bin/benchmark for more.

Prior Art: https://github.com/mime-types/ruby-mime-types https://github.com/hanklords/shared-mime-info https://github.com/mimemagicrb/mimemagic https://github.com/discourse/mini_mime https://github.com/rails/marcel/ https://github.com/blackwinter/ruby-filemagic/ https://github.com/glongman/ffiruby-filemagic/