lookup

# File railties/lib/rails/generators.rb, line 351
      def self.lookup(namespaces) #:nodoc:
        paths = namespaces_to_paths(namespaces)

        paths.each do |raw_path|
          ["rails/generators", "generators"].each do |base|
            path = "#{base}/#{raw_path}_generator"

            begin
              require path
              return
            rescue LoadError => e
              raise unless e.message =~ /#{Regexp.escape(path)}$/
            rescue Exception => e
              warn "[WARNING] Could not load generator #{path.inspect}. Error: #{e.message}.\n#{e.backtrace.join("\n")}"
            end
          end
        end
      end