From 270b506ff83986eddf20162b24acb7a7ee045b66 Mon Sep 17 00:00:00 2001
From: Adam Sinnett <quandrum@gmail.com>
Date: Thu, 18 Apr 2013 14:05:14 -0700
Subject: [PATCH] Add source map generation to closure compiler arguments

---
 lib/grunt/utils.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/grunt/utils.js b/lib/grunt/utils.js
index 0c1fd8ca11e0..09a3ad2c4813 100644
--- a/lib/grunt/utils.js
+++ b/lib/grunt/utils.js
@@ -123,6 +123,7 @@ module.exports = {
 
   min: function(file, done) {
     var minFile = file.replace(/\.js$/, '.min.js');
+    var sourceMapFile = minFile + '.map';
     shell.exec(
         'java ' +
             this.java32flags() + ' ' +
@@ -130,7 +131,9 @@ module.exports = {
             '--compilation_level SIMPLE_OPTIMIZATIONS ' +
             '--language_in ECMASCRIPT5_STRICT ' +
             '--js ' + file + ' ' +
-            '--js_output_file ' + minFile,
+            '--js_output_file ' + minFile + ' ' +
+            '--create_source_map ' + sourceMapfile + ' ' +
+            '--source_map_format=V3',
       function(code) {
         if (code !== 0) grunt.fail.warn('Error minifying ' + file);
         grunt.file.write(minFile, this.singleStrict(grunt.file.read(minFile), '\n'));