Controller generator improvement

Hello! I noticed that when i do rails g controller admin/infobar index edit update show i get that in my routes.rb:

  namespace :admin do
get 'infobar/index'
end
namespace :admin do
get 'infobar/edit'
end
namespace :admin do
get 'infobar/update'
end
namespace :admin do
get 'infobar/show'
end

It is kinda annoying and badly indented.

Is it possible for it to maybe receive option --rest and produce that instead? I would be glad to start working on that.

  namespace :admin do resource :infobar, only: [:index, :edit, :update, :show]
end