You don't need this source code unless you want to modify the gem. If you just want to use the Stripe Ruby bindings, you should run:
gem install --source https://code.stripe.com stripe
If you want to build the gem from source:
gem build stripe.gemspec
Ruby 1.8.7 or above. (Ruby 1.8.6 may work if you load ActiveSupport.)
The stripe gem is mirrored on Rubygems, so you should be able to install it via gem install stripe if desired. We recommend using the code.stripe.com mirror so all code is fetched over SSL.
Note that if you are installing via bundler, you should be sure to use the https rubygems source in your Gemfile, as any gems fetched over http could potentially be comprimised in transit and alter the code of gems fetched securely over https:
source 'https://code.stripe.com' source 'https://rubygems.org' gem 'rails' gem 'stripe'
Test cases can be run with: `bundle exec rake test`