From 01b0f656bb32916c714aa7c1438a788dde6c6210 Mon Sep 17 00:00:00 2001
From: Joonas Lahtinen <joonas.lahtinen@iki.fi>
Date: Mon, 13 Feb 2017 23:10:13 +0100
Subject: [PATCH] Avoid duplicate "sourceMappingURL=" lines.

Avoid duplicate // sourceMappingURL=... lines when minifying AND
generating a map. UglifyJS2 will write the line when minifying.

(cherry picked from commit 660a117)
---
 lib/precompiler.js  | 3 ---
 spec/precompiler.js | 4 ++--
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/precompiler.js b/lib/precompiler.js
index a20d1419..6ba3800c 100644
--- a/lib/precompiler.js
+++ b/lib/precompiler.js
@@ -250,9 +250,6 @@ module.exports.cli = function(opts) {
       outSourceMap: opts.map,
       inSourceMap: JSON.parse(output.map)
     });
-    if (opts.map) {
-      output.code += '\n//# sourceMappingURL=' + opts.map + '\n';
-    }
   }
 
   if (opts.map) {
diff --git a/spec/precompiler.js b/spec/precompiler.js
index f9759a9c..006a37e3 100644
--- a/spec/precompiler.js
+++ b/spec/precompiler.js
@@ -152,14 +152,14 @@ describe('precompiler', function() {
     Precompiler.cli({templates: [emptyTemplate], map: 'foo.js.map'});
 
     equal(file, 'foo.js.map');
-    equal(/sourceMappingURL=/.test(log), true);
+    equal(log.match(/sourceMappingURL=/g).length, 1);
   });
 
   it('should output map', function() {
     Precompiler.cli({templates: [emptyTemplate], min: true, map: 'foo.js.map'});
 
     equal(file, 'foo.js.map');
-    equal(/sourceMappingURL=/.test(log), true);
+    equal(log.match(/sourceMappingURL=/g).length, 1);
   });
 
   describe('#loadTemplates', function() {