Gitolite allows a server to host many git repositories and
provide access to many developers, without having to give them
real userids on the server.  The essential magic in doing this
is ssh's pubkey access and the authorized keys file, and the
inspiration was an older program called gitosis.

Gitolite can restrict who can read from (clone/fetch) or write
to (push) a repository. It can also restrict who can push to what
branch or tag, which is very important in a corporate environment.
Gitolite can be installed without requiring root permissions, and
with no additional software than git itself and perl. It also has
several other neat features described below and elsewhere in the
doc/ directory.

• Nikolay A. Fetisov
• Michael Shigorin

• gitolite
• gitolite-doc