From cdd4c9669abd844dc300dd4dab6efbdc5b28ad79 Mon Sep 17 00:00:00 2001
From: Kevin Sawicki <kevin@github.com>
Date: Mon, 28 Oct 2013 13:44:37 -0700
Subject: [PATCH] Handle walkdir error events

---
 tasks/task-helpers.coffee | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tasks/task-helpers.coffee b/tasks/task-helpers.coffee
index 4adb4fc32..c44c890e0 100644
--- a/tasks/task-helpers.coffee
+++ b/tasks/task-helpers.coffee
@@ -4,7 +4,7 @@ walkdir = require 'walkdir'
 
 module.exports = (grunt) ->
   cp: (source, destination, {filter}={}) ->
-    walkdir.sync source, (sourcePath, stats) ->
+    walker = walkdir.sync source, (sourcePath, stats) ->
       return if filter?.test(sourcePath)
 
       destinationPath = path.join(destination, path.relative(source, sourcePath))
@@ -16,6 +16,7 @@ module.exports = (grunt) ->
 
       if grunt.file.exists(destinationPath)
         fs.chmodSync(destinationPath, fs.statSync(sourcePath).mode)
+    walker.on 'error', (error) -> grunt.fatal(error)
 
     grunt.log.writeln("Copied #{source.cyan} to #{destination.cyan}.")