sonar-svn-replay is a free and open-source tool that plays back history of sonar code quality metrics from subversion repository.
sonar-svn-replay checks the code from the past in specified intervals and sends metrics to sonar to recreate the metrics from the past and create the trends.
sonar-svn-replay is inspired by another project sonar-replay that however is only perforce based.
Instructions on how to use the sonar-svn-replay utility on your Mac are available HERE.
sonar-svn-replay is a cross-platform utility capable of running on any operating system that comes with Java support (e.g. Mac OS X, Windows, Linux).