How to log every single call to a ruby instance

log_methods.rb

# From http://stackoverflow.com/questions/5513558/executing-code-for-every-method-call-in-a-ruby-module
class ChattyArray < Array
  Array.instance_methods.each do |name|
    m = instance_method(name)
    define_method name do |*args, &block|
      # puts caller.grep(/app_name/) if name == :certain_method
      puts ([name] + args).inspect
      m.bind(self).(*args, &block)
    end
  end
end