instance method usage_message

# File railties/lib/rails_generator/scripts.rb, line 44
          def usage_message
            usage = "\nInstalled Generators\n"
            Rails::Generator::Base.sources.inject([]) do |mem, source|
              # Using an association list instead of a hash to preserve order,
              # for aesthetic reasons more than anything else.
              label = source.label.to_s.capitalize
              pair = mem.assoc(label)
              mem << (pair = [label, []]) if pair.nil?
              pair[1] |= source.names
              mem
            end.each do |label, names|
              usage << "  #{label}: #{names.join(', ')}\n" unless names.empty?
            end

            usage << <<end_blurb

More are available at http://wiki.rubyonrails.org/rails/pages/AvailableGenerators
  1. Download, for example, login_generator.zip
  2. Unzip to directory #{Dir.user_home}/.rails/generators/login
     to use the generator with all your Rails apps
end_blurb

            if Object.const_defined?(:RAILS_ROOT)
              usage << <<end_blurb
     or to #{File.expand_path(RAILS_ROOT)}/lib/generators/login
     to use with this app only.
end_blurb
            end

            usage << <<end_blurb
  3. Run generate with no arguments for usage information
       #{$0} login

Generator gems are also available:
  1. gem search -r generator
  2. gem install login_generator
  3. #{$0} login

end_blurb
            return usage
          end