From 18514d63534c82094b231eb1e0b0e41011519183 Mon Sep 17 00:00:00 2001
From: Vojta Jina <vojta.jina@gmail.com>
Date: Mon, 21 Oct 2013 16:37:52 -0700
Subject: [PATCH] feat(config): add usePolling config

This config option is forwarded to chokidar. When set to `true` (default value is `false`), chokidar uses `fs.watch` instead of stat polling.

This seems to be finally working well on linux, however it does not work on Mac.
See https://github.com/paulmillr/chokidar/issues/62

That's why I'm leaving it undocumented ;-)
---
 lib/config.js  | 1 +
 lib/watcher.js | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/config.js b/lib/config.js
index 2be5b5903..3f08214b6 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -263,6 +263,7 @@ var Config = function() {
   this.colors = true;
   this.autoWatch = false;
   this.autoWatchBatchDelay = 250;
+  this.usePolling = false;
   this.reporters = ['progress'];
   this.singleRun = false;
   this.browsers = [];
diff --git a/lib/watcher.js b/lib/watcher.js
index ee113fd37..ce76e3758 100644
--- a/lib/watcher.js
+++ b/lib/watcher.js
@@ -71,9 +71,10 @@ var getWatchedPatterns = function(patternObjects) {
   });
 };
 
-exports.watch = function(patterns, excludes, fileList) {
+exports.watch = function(patterns, excludes, fileList, usePolling) {
   var watchedPatterns = getWatchedPatterns(patterns);
   var options = {
+    usePolling: usePolling,
     ignorePermissionErrors: true,
     ignoreInitial: true,
     ignored: createIgnore(watchedPatterns, excludes)
@@ -96,4 +97,4 @@ exports.watch = function(patterns, excludes, fileList) {
   return chokidarWatcher;
 };
 
-exports.watch.$inject = ['config.files', 'config.exclude', 'fileList'];
+exports.watch.$inject = ['config.files', 'config.exclude', 'fileList', 'config.usePolling'];