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Hosting git repositories -- Gitolite allows you to setup git hosting on a central server, with very fine-grained access control and many (many!) more powerful features. [IMPORTANT: please click and read the WIKI link above before submitting issues, pull requests, etc] IMPORTANT: PLEASE READ Nov 2 2014 UPDATE ABOUT DONATIONS -- see wiki
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gitolite

[Update 2009-10-28: apart from all the nifty new features, there's now an "easy install" script in the src directory. This script can be used to install as well as upgrade a gitolite install. Please see the INSTALL document in the doc directory for details]


Gitolite is a rewrite of gitosis, with a completely different config file that allows (at last!) access control down to the branch level, including specifying who can and cannot rewind a given branch.

In this document:

  • what
  • why
  • extra features
  • security
  • contact and license

what

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.

why

I have been using gitosis for a while, and have learnt a lot from it. But in a typical $DAYJOB setting, there are some issues:

  • it's not always Linux; you can't just "urpmi gitosis" (or yum or apt-get) and be done
  • often, "python-setuptools" isn't installed (and on a Solaris9 I was trying to help remotely, we never did manage to install it eventually)
  • you don't have root access, or the ability to add users (this is also true for people who have just one userid on a hosting provider)
  • the most requested feature (see below) had to be written anyway

All of this pointed to a rewrite. In perl, naturally :-)

extra features

The most important feature I needed was per-branch permissions. This is pretty much mandatory in a corporate environment, and is almost the single reason I started thinking about rolling my own gitosis in the first place.

It's not just "read-only" versus "read-write". Rewinding a branch (aka "non fast forward push") is potentially dangerous, but sometimes needed. So is deleting a branch (which is really just an extreme form of rewind). I needed something in between allowing anyone to do it (the default) and disabling it completely (receive.denyNonFastForwards or receive.denyDeletes).

Here're some more features. All of them, and more, are documented in detail here.

  • simpler, yet far more powerful, config file syntax, including specifying gitweb/daemon access. You'll need this power if you manage lots of users+repos+combinations of access
  • config file syntax gets checked upfront, and much more thoroughly
  • if your requirements are still too complex, you can split up the config file and delegate authority over parts of it
  • easier to specify gitweb/daemon access, and easier to link gitweb authorisation with gitolite
  • more comprehensive logging [aka: management does not think "blame" is just a synonym for "annotate" :-)]
  • "personal namespace" prefix for each dev
  • migration guide and simple converter for gitosis conf file
  • "exclude" (or "deny") rights in the config file -- this is the "rebel" branch in the repository, and always will be ;-)

security

Due to the environment in which this was created and the need it fills, I consider this a "security" program, albeit a very modest one. The code is very small and easily reviewable -- the 2 programs that actually control access when a user logs in total about 220 lines of code (about 90 lines according to "sloccount").

For the first person to find a security hole in it, defined as allowing a normal user (not the gitolite admin) to read a repo, or write/rewind a ref, that the config file says he shouldn't, and caused by a bug in code that is in the "master" branch, (not in the other branches, or the configuration file or in Unix, perl, shell, etc.)... well I can't afford 1000 USD rewards like djb, so you'll have to settle for 1000 INR (Indian Rupees) as a "token" prize :-)


contact and license

Gitolite is released under GPL v2. See COPYING for details.

sitaramc@gmail.com

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