xcode change from svn to git

I am working on an iPhone app improvemen开发者_JS百科t project. Original project was done using SVN, however, I want to use git for new changes. When I open xcode4 and see source control, I dont see an option to change the source control settings. How can I change the settings so that I can use a local git repository?

You might need to convert that svn repo to a git repo first, with git-svn for instance.
I would recommend using a script like svn2git for this kind of operation (that is, if you don't have to commit back to the original SVN repo. If you do, git-svn is preferable).