Fix fast adding missing files issue #552

index.js

@@ -273,13 +273,18 @@ FSWatcher.prototype._throttle = function(action, path, timeout) {
     this._throttled[action] = Object.create(null);
   }
   var throttled = this._throttled[action];
-  if (path in throttled) return false;
+  if (path in throttled) {
+    throttled[path].count++;
+    return false;
+  }
   function clear() {
+    var count = throttled[path] ? throttled[path].count : 0;
     delete throttled[path];
     clearTimeout(timeoutObject);
+    return count;
   }
   var timeoutObject = setTimeout(clear, timeout);
-  throttled[path] = {timeoutObject: timeoutObject, clear: clear};
+  throttled[path] = {timeoutObject: timeoutObject, clear: clear, count: 0};
   return throttled[path];
 };
 

lib/nodefs-handler.js

@@ -380,7 +380,7 @@ function(dir, stats, initialAdd, depth, target, wh, callback) {
         this._addToNodeFs(path, initialAdd, wh, depth + 1);
       }
     }.bind(this)).on('end', function() {
-      if (throttler) throttler.clear();
+      var wasThrottled = throttler ? throttler.clear() : false;
       if (done) done();
 
       // Files that absent in current directory snapshot
@@ -398,6 +398,9 @@ function(dir, stats, initialAdd, depth, target, wh, callback) {
       }).forEach(function(item) {
         this._remove(directory, item);
       }, this);
+
+      // one more time for any missed in case changes came in extremely quickly
+      if (wasThrottled) read(directory, false);
     }.bind(this)).on('error', this._handleError.bind(this));
   }.bind(this);