From 9a14825a1a49d24be14b89e8e94c2e78ec6cea2c Mon Sep 17 00:00:00 2001
From: Brandon Frohs <brandon@forewordreviews.com>
Date: Mon, 22 Apr 2013 12:44:31 -0400
Subject: [PATCH] Add `prefix` option.

Same as `-p` and `--prefix` in CLI.
---
 tools/node.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/node.js b/tools/node.js
index 1df61bcd..0bbdf6c6 100644
--- a/tools/node.js
+++ b/tools/node.js
@@ -59,6 +59,7 @@ exports.minify = function(files, options) {
         warnings     : false,
         mangle       : {},
         output       : null,
+        prefix       : null,
         compress     : {}
     });
     if (typeof files == "string")
@@ -70,6 +71,11 @@ exports.minify = function(files, options) {
         var code = options.fromString
             ? file
             : fs.readFileSync(file, "utf8");
+				
+				if (options.prefix !== null) {
+	        file = file.replace(/^\/+/, "").split(/\/+/).slice(options.prefix).join("/");
+				}
+				
         toplevel = UglifyJS.parse(code, {
             filename: options.fromString ? "?" : file,
             toplevel: toplevel