class Rails::Generators::PluginGenerator

def name
  @name ||= begin
    # same as ActiveSupport::Inflector#underscore except not replacing '-'
    underscored = original_name.dup
    underscored.gsub!(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
    underscored.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
    underscored.downcase!
    underscored
  end
end