OS X source packages imported to GitHub

This repo contains an unofficial GitHub-import of the OS X source packages from http://opensource.apple.com/

New source releases are imported automatically as they are published by Apple.

Which source package contains the source for OS X binary X?

Use the OS X what command to find out in which source package a certain binary can be found.

Example: Where can I find the source to ls?

$ what /bin/ls
/bin/ls
	 Copyright (c) 1989, 1993, 1994
	PROGRAM:ls  PROJECT:file_cmds-242

The source for the ls command can be found in the file_cmds source package.