How to Set Up Bundler for Development
1.Fork Bundler
Go to the Bundler Github https://github.com/bundler/bundler
Press the fork button.
Fork Bundler so you can create pull requests with your changes
2.Download a copy of your fork of Bundler
git clone https://github.com/user_name/bundler.git
3.Change into the Bundler directory
cd bundler
4.Configure the remote
git remote add upstream https://github.com/bundler/bundler.git
This connects your local repo to the upstream repo at Github.
5.Install Bundler development dependencies
rake spec:deps
What is rake? http://rake.rubyforge.org/
6.Run the Bundler test suite
rake spec
This could take about 15 minutes.