Get list of gems which are being pulled from git repo's.

gems_from_git.rb

Bundler::LockfileParser.new(Bundler.read_file(Rails.root.join("Gemfile.lock"))).dependencies
                                                                               .reject { |dep| dep.source.nil? }
                                                                               .map    { |dep| [dep.name, dep.source.path.to_s.split('-').last] }