From a85cd8582387df1ad0381775641f2f8d3f1be450 Mon Sep 17 00:00:00 2001
From: Stanislav Sysoev <d4rkr00t@gmail.com>
Date: Wed, 18 Oct 2017 13:19:24 +1100
Subject: [PATCH] bail out from watching eralier using watchOptions ignored

---
 lib/DirectoryWatcher.js | 9 ++++++++-
 package.json            | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/DirectoryWatcher.js b/lib/DirectoryWatcher.js
index 2aea0df..ad1a2f5 100644
--- a/lib/DirectoryWatcher.js
+++ b/lib/DirectoryWatcher.js
@@ -5,6 +5,7 @@
 var EventEmitter = require("events").EventEmitter;
 var async = require("async");
 var chokidar = require("chokidar");
+var anymatch = require('anymatch');
 var fs = require("graceful-fs");
 var path = require("path");
 
@@ -230,13 +231,14 @@ DirectoryWatcher.prototype.watch = function watch(filePath, startTime) {
 DirectoryWatcher.prototype.onFileAdded = function onFileAdded(filePath, stat) {
 	if(filePath.indexOf(this.path) !== 0) return;
 	if(/[\\\/]/.test(filePath.substr(this.path.length + 1))) return;
-
+	if(this.isIgnored(filePath)) return;
 	this.setFileTime(filePath, +stat.mtime, false, "add");
 };
 
 DirectoryWatcher.prototype.onDirectoryAdded = function onDirectoryAdded(directoryPath /*, stat */) {
 	if(directoryPath.indexOf(this.path) !== 0) return;
 	if(/[\\\/]/.test(directoryPath.substr(this.path.length + 1))) return;
+	if(this.isIgnored(directoryPath)) return;
 	this.setDirectory(directoryPath, true, false, "add");
 };
 
@@ -283,6 +285,7 @@ DirectoryWatcher.prototype.doInitialScan = function doInitialScan() {
 					callback();
 					return;
 				}
+				if(this.isIgnored(itemPath)) return;
 				if(stat.isFile()) {
 					if(!this.files[itemPath])
 						this.setFileTime(itemPath, +stat.mtime, true);
@@ -341,6 +344,10 @@ DirectoryWatcher.prototype.close = function() {
 	this.emit("closed");
 };
 
+DirectoryWatcher.prototype.isIgnored = function(itemPath) {
+	return this.options.ignored && anymatch(this.options.ignored, itemPath);
+}
+
 function ensureFsAccuracy(mtime) {
 	if(!mtime) return;
 	if(FS_ACCURACY > 1 && mtime % 1 !== 0)
diff --git a/package.json b/package.json
index 72567df..51da2fe 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
     "should": "^8.3.1"
   },
   "dependencies": {
+    "anymatch": "^1.3.2",
     "async": "^2.1.2",
     "chokidar": "^1.7.0",
     "graceful-fs": "^4.1.2"