A simple bubble sort algorithm in ruby

bubble_sort.rb

def bubble_sort(array)                                                           
  loop do                                                                        
    swapped = false                                                              
                                                                         
    (array.length-1).times do |i|                                                
      if array[i] > array[i + 1]                                                 
        array[i], array[i + 1] = array[i + 1], array[i]                          
        swapped = true                                                           
      end                                                                        
    end                                                                          
                                                                        
    break if not swapped                                                         
  end                                                                            
  array                                                                          
end