railties/lib/rails/commands/generate/generate_command.rb


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require "rails/generators"

module Rails
  module Command
    class GenerateCommand < Base # :nodoc:
      def help
        require_application_and_environment!
        load_generators

        Rails::Generators.help self.class.command_name
      end

      def perform(*)
        generator = args.shift
        return help unless generator

        require_application_and_environment!
        load_generators

        ARGV.shift

        Rails::Generators.invoke generator, args, behavior: :invoke, destination_root: Rails::Command.root
      end
    end
  end
end