Please also see my answer in this other thread:
Please raise Jira issue. Try to be as specific as possible on your typical workflow and what it is you would need to get it to work (an issue like 'provide support for working with SVN + Gradle' while valid is very broad. As such it would be less likely to get implemented quickly as it may be a lot of work. But if you can think of "small steps" that would make your life/workflow easier it is more likely to get implemented in the shorter term.
Kris De Volder -- SpringSource