Gitit is a wiki program. Pages and uploaded files are stored in a git or darcs repository and may be modified either by using the VCS's command-line tools or through the wiki's web interface. Pandoc's extended version of markdown is used as a markup language. Pages can be exported in a number of different formats, including LaTeX, RTF, OpenOffice ODT, and MediaWiki markup. Gitit can be configured to display TeX math (using jsMath) and highlighted source code (using highlighting-kate).
To install the released version of gitit using cabal-install:
cabal update
cabal install pandoc -fhighlighting
cabal install gitit
To install the development version:
git clone git://github.com/jgm/gitit.git
cd gitit
cabal install pandoc -fhighlighting
cabal install # add -fplugins for plugins support
Then:
mkdir mywiki
cd mywiki
gitit
and you're up and running on port 5001.