loadify.rb

STDOUT.sync = true

def loadify(message = "", &block)
  characters = %w[| / - \\ | / - \\]
  
  thread = Thread.new do
    block.call
  end
  
  while thread.alive?
    next_character = characters.shift
    output = "#{next_character} #{message}"
    print output
    characters << next_character
    sleep 0.1
    print "\b" * (output.length)
  end
  
end