Back in 2006, I wrote a Subversion plugin for History Flow, a visualisation tool that lets you examine graphically the history of a text file. (I also wrote about the API that History Flow uses.)
Unfortunately the plugin had stopped working, and JavaSVN (which I used to access Subversion repositories from Java) had been renamed to SVNKit.
I originally provided a ready-to-run plugin JAR, plus a ZIP containing the source code. Today I found the old Subversion repository that I used when originally writing the plugin.
So I’ve converted the Subversion repository to a git repository, and you can find all the code – with fixes to get it using SVNKit instead of JavaSVN – in the historyflow-subversion repository on GitHub.
In doing this I’ve learnt a few things about writing good commit messages and converting from Subversion to git.
Enjoy!
Richard Fearn 
man–I took over a coding project recently (3 months ago) and wanted to use history flow to visualize my changes (i.e. how much code have I reduced) but we use git. Any plans to port your plug in to support git repositories? (ironic you use git for your svn plug in source code!)
cheers…
.n
@niels: No plans at the moment. As the code is on GitHub, anyone could fork it and write a Git plugin. JGit would be useful for doing that.