Check for excluded path before fs.stat

Author: mishanga

lib/csscomb.js

@@ -120,18 +120,17 @@ Comb.prototype = {
         return vfs.listDir(path).then(function(filenames) {
             return vow.all(filenames.map(function(filename) {
                 var fullname = path + '/' + filename;
-                return vfs.stat(fullname).then(function(stat) {
-                    if (_this._shouldProcess(fullname)) {
+                if (_this._shouldProcess(fullname)) {
+                    return vfs.stat(fullname).then(function(stat) {
                         if (stat.isDirectory()) {
                             return _this.processDirectory(fullname);
                         } else if (fullname.match(/\.css$/)) {
                             return vow.when(_this.processFile(fullname)).then(function(errors) {
                                 if (errors) return errors;
                             });
                         }
-                    }
-                    return;
-                });
+                    });
+                }
             })).then(function(results) {
                 return [].concat.apply([], results);
             });