GemInstaller::OutputObserver

   # File lib/geminstaller/output_observer.rb, line 5
5:     def initialize
6:       @stream = :stdout
7:       @listeners = []
8:     end

    # File lib/geminstaller/output_observer.rb, line 33
33:     def flush
34:     end

    # File lib/geminstaller/output_observer.rb, line 19
19:     def print(output)
20:       @listeners.each do |listener|
21:         listener.notify(output, @stream)
22:       end
23:     end

    # File lib/geminstaller/output_observer.rb, line 25
25:     def puts(output)
26:       print("#{output}\n")
27:     end

    # File lib/geminstaller/output_observer.rb, line 10
10:     def register(listener)
11:       listener = [listener] unless listener.is_a?(Array)
12:       @listeners += listener
13:     end

    # File lib/geminstaller/output_observer.rb, line 29
29:     def tty?
30:       false
31:     end

    # File lib/geminstaller/output_observer.rb, line 15
15:     def unregister(listener)
16:       @listeners.delete(listener)
17:     end