Cloning this repository:

git clone git://gitorious.org/~corel/0xdroid/corels-clone-google-calendarprovider.git corels-clone-google-calendarprovider
cd corels-clone-google-calendarprovider

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

git remote add corels-clone-google-calendarprovider git://gitorious.org/~corel/0xdroid/corels-clone-google-calendarprovider.git
git fetch corels-clone-google-calendarprovider
git checkout -b my-local-tracking-branch corels-clone-google-calendarprovider/master_or_other_branch