InDefero is a simple code and project management software licensed under the GNU General Public Licence (GPL) and mostly written in PHP. It features issue tracking, documentation wiki, code review, file distribution and supports Git, Subversion and Mercurial repositories.
InDefero is a GoogleCode clone and thus the design and features are significantly influenced by it.
A selection of featues are 
- every user has their personal dashboards
- code browser with git, Subversion & Mercurial support
- project timeline
- powerful search engine
- diff visualization of the commits
- inline display of text files from the repository with syntax highlighting
External linksSource: http://en.wikipedia.org/wiki/InDefero