Method: Listen::QueueOptimizer#_calculate_add_remove_difference

Defined in:
lib/listen/queue_optimizer.rb

#_calculate_add_remove_difference(actions, path, default_if_exists) ⇒ Object (private) 



69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
 
# File 'lib/listen/queue_optimizer.rb', line 69

def _calculate_add_remove_difference(actions, path, default_if_exists)
  added = actions.count { |x| x == :added }
  removed = actions.count { |x| x == :removed }
  diff = added - removed

  # TODO: avoid checking if path exists and instead assume the events are
  # in order (if last is :removed, it doesn't exist, etc.)
  if config.exist?(path)
    if diff > 0
      :added
    elsif diff.zero? && added > 0
      :modified
    else
      default_if_exists
    end
  else
    diff < 0 ? :removed : nil
  end
end