class Rails::Command::RakeCommand

def formatted_rake_tasks
  rake_tasks.map { |t| [ t.name_with_args, t.comment ] }
end

def perform(task, args, config)
  require_rake
  Rake.with_application do |rake|
    rake.init("rails", [task, *args])
    rake.load_rakefile
    if Rails.respond_to?(:root)
      rake.options.suppress_backtrace_pattern = /\A(?!#{Regexp.quote(Rails.root.to_s)})/
    end
    rake.standard_exception_handling { rake.top_level }
  end
end

def printing_commands
  formatted_rake_tasks.map(&:first)
end

def rake_tasks
  require_rake
  return @rake_tasks if defined?(@rake_tasks)
  require_application!
  Rake::TaskManager.record_task_metadata = true
  Rake.application.instance_variable_set(:@name, "rails")
  load_tasks
  @rake_tasks = Rake.application.tasks.select(&:comment)
end

def require_rake
  require "rake" # Defer booting Rake until we know it's needed.
end