GitStats is a statistics generator for git (a distributed revision control system) repositories. It examines the repository and produces some interesting statistics from the history of it. Currently HTML is the only output format.
Also see the SourceForge project page.
Here is a list of some statistics generated currently:
See the examples directory for example statistics generated for various projects.
You can get GitStats by git:
git clone git://repo.or.cz/gitstats.git
The repository also contains the web site in the web branch.
Alternatively, you can download a tar.gz archive using the "snapshot" link in the gitweb browser. The archive will be named gitstats-$REV.tar.gz and will extract to gitstats/.
You can also browse the repository.
If you are running Debian Squeeze or Sid, you can install gitstats with:
apt-get install gitstats
But note that the version in Debian is most likely much older than the latest version available in git.
Both the code and the web site are licensed under GPLv2/GPLv3.