Rescuable Exception

rescuable_exception.rb

# Taken from a comment on http://www.mikeperham.com/2012/03/03/the-perils-of-rescue-exception/
module RescuableException
  def self.===(exception)
    case exception
    
    # Catch when the user hits ^C (Interrupt < SignalException), and assume
    # that they just wanted to stop the in-progress command (just like bash etc.)
    when Interrupt
      true
    
    # Don't catch signals (particularly not SIGTERM) as these are unlikely to be
    # intended for pry itself. We should also make sure that Kernel#exit works.
    when SystemExit, SignalException
      false
    
    # All other exceptions will be caught.
    else
      true
    end
  end
end