Caching isFile results, ref #1

keystonejs · Aug 2, 2016 · e6ad15d · e6ad15d
1 parent cf24c1d
commit e6ad15d
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/lib/util/isFile.js b/lib/util/isFile.js
@@ -1,14 +1,20 @@
 var debug = require('debug')('keystone:email');
 var fs = require('fs');
 
+var cache = {};
+
 function isFile (path) {
+	if (cache[path] !== undefined) {
+		return cache[path];
+	}
 	debug('isFile "%s"', path);
 	try {
 		var stat = fs.statSync(path);
-		return stat.isFile();
+		cache[path] = stat.isFile();
 	} catch (e) {
-		return false;
+		cache[path] = false;
 	}
+	return cache[path];
 }
 
 module.exports = isFile;