Author: John Reese

Gitosis stores repositories in the 'git' user's home directory. In the case of git.mantisbt.org, this path is /srv/git. Configuration of the hosted repositories is defined in a special repository gitosis-admin.git, which contains a single configuration file and a directory of users' SSH keys.

Gitosis does its magic via the post-update hook in the gitosis-admin repository; in other words, every time you push changes to the special repository, it automatically updates all the appropriate settings, files, etc on the server to match the new configuration.

[1] http://scie.nti.st/2007/11/14/hosting-git-repositories-the-easy-and-secure-way