a2ps is an Any to PostScript filter. It started as a Text to PostScript converter, with pretty printing features and all the expected features from this kind of programs. But today, it is also able to deal with other file types (PostScript, Texinfo, compressed, whatever...) provided you have the necessary tools.
Software Configuration Management System
Aegis is a transaction-based software configuration management system. It provides a framework within which a team of developers may work on many changes to a program independently, and Aegis coordinates integrating these changes back into the master source of the program, with as little disruption as possible.