Cloning this repository:

git clone git://gitorious.org/maemo-pkg/shared-mime-info2.git shared-mime-info2
cd shared-mime-info2

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

git remote add shared-mime-info2 git://gitorious.org/maemo-pkg/shared-mime-info2.git
git fetch shared-mime-info2
git checkout -b my-local-tracking-branch shared-mime-info2/master_or_other_branch