# File lib/rails-installer.rb, line 371 def rails_version_to_freeze if @@rails_version return "= #{@@rails_version}" else specs = Gem.source_index.find_name(app_name,["= #{@install_version}"]) unless specs.to_a.size > 0 raise InstallFailed, "Can't locate version #{@install_version.first}!" end rails_dep = specs.first.dependencies.detect {|a| a.name=='rails'} version = rails_dep.version_requirements.to_s return version end end