Cloning this repository:

git clone git://gitorious.org/avinor-api/ruby-api.git ruby-api
cd ruby-api

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

git remote add ruby-api git://gitorious.org/avinor-api/ruby-api.git
git fetch ruby-api
git checkout -b my-local-tracking-branch ruby-api/master_or_other_branch