Cloning this repository:

git clone git://gitorious.org/+vsr/gitorious/vsr-mainline.git vsr-mainline
cd vsr-mainline

Add this repository as a remote to an existing local repository:

git remote add vsr-mainline git://gitorious.org/+vsr/gitorious/vsr-mainline.git
git fetch vsr-mainline
git checkout -b my-local-tracking-branch vsr-mainline/master_or_other_branch