# File lib/simp/cli/config/items/item.rb, line 304 def show_wait_spinner(frames_per_second=5) chars = %w[| / - \\] delay = 1.0/frames_per_second iter = 0 spinner = Thread.new do while iter do # Keep spinning until told otherwise print chars[(iter+=1) % chars.length] sleep delay print "\b" end end yield.tap { # After yielding to the block, save the return value iter = false # Tell the thread to exit, cleaning up after itself… spinner.join # …and wait for it to do so. } # Use the block's return value as the method's end