Module: Deployman::Component::Spinningclock

Defined in:
lib/deployman/component/spinningclock.rb

Constant Summary collapse

@@active = 
true

Class Method Summary collapse

Class Method Details

.set_active(active = true) ⇒ Object 



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# File 'lib/deployman/component/spinningclock.rb', line 29

def self.set_active(active = true)
  @@active = active
end

.show_clock(fps = 10) ⇒ Object 



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# File 'lib/deployman/component/spinningclock.rb', line 5

def self.show_clock(fps = 10)

  if @@active
    chars = %w[| / - \\]
    delay = 1.0/fps
    iter = 0
    clock = 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…
      clock.join     # …and wait for it to do so.
    }                 # Use the block's return value as the method's
  else
    # just execute the block
    yield
  end

end