Cloning this repository:

git clone git://gitorious.org/git-rails/mainline.git mainline
cd mainline

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

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

Cloning this repository:

git clone git://gitorious.org/~melriffe/git-rails/melriffes-clone.git melriffes-clone
cd melriffes-clone

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

git remote add melriffes-clone git://gitorious.org/~melriffe/git-rails/melriffes-clone.git
git fetch melriffes-clone
git checkout -b my-local-tracking-branch melriffes-clone/master_or_other_branch