lib/sidekick/triggers.rb in sidekick-0.5.1 vs lib/sidekick/triggers.rb in sidekick-0.6.0

@@ -1,14 +1,13 @@
 
 
-require 'em-dir-watcher'
-
-
 module Sidekick::Triggers
 
-  # default triggers
+  extend ::Sidekick::Helpers
 
   register :watch do |callback, glob|
+    needs 'em-dir-watcher', 'to watch file changes'
+
     EMDirWatcher.watch(
       File.expand_path('.'),
       :include_only => [glob],
       :grace_period => 0.2
       ) do |paths|