`git', by Linus Torvalds, contains some very good ideas and some very entertaining source code -- recommended reading for hackers.
/GNU Arch/ will adopt `git':
>From the /Arch/ perspective: `git' technology will form the
basis of a new archive/revlib/cache format and the basis of new network transports.
>From the `git' perspective, /Arch/ will replace the lame "directory
cache" component of `git' with a proper revision control system.
In my view, the core ideas in `git' are quite profound and deserve an impeccable implementation. This is practical because those ideas are also pretty simple.
I started here:
http://www.seyza.com/=clients/linus/tree/index.html
and for those interested in `git'-theory, a good place to start is
http://www.seyza.com/=clients/linus/tree/src/liblob/index.html
(Linus is not literally a "client" of mine. That's just the directory where this goes.)
-t