Rake stats is useful when you need to know the statistics of your project. However if you try to add custom folder to be listed – documentation is somewhat sparse.
Question is why would you need a custom folder? After all isn’t the Rails prescribed way to go… Well not everything is a model or a a lib. You can have complex domain models in Ruby that have nothing to do with the database or the general library utility classes. Those poor classes just scream for the folder of their own.
If you add code to new folder named FancyNewFolder “rake stats” is not picking it up.
Here is what I did.
gvim lib/tasks/AppTasks.rake
And then I’ve added
STATS_DIRECTORIES = [
%w(Controllers app/controllers),
%w(Helpers app/helpers),
%w(Models app/models),
%w(Libraries lib/),
%w(FancyNewFolder app/fancy_new_folder),
%w(Integration\ tests test/integration),
%w(Functional\ tests test/functional),
%w(Unit\ tests test/unit)
].collect {|name, dir| [name, "#{RAILS_ROOT}/#{dir}"]}.select {|name, dir| File.directory?(dir)}
desc "Report code statistics (KLOCs, etc) from the application"
task :stats do
require 'code_statistics'
CodeStatistics.new(*STATS_DIRECTORIES).to_s
end
Voilà there is your custom folder, I’ll bet the stats are not so good as they used to be, but at least now you know the truth 
