dedupe overridden jspm properties

jspm · Nov 18, 2014 · 7ee062f · 7ee062f
1 parent 650400a
commit 7ee062f
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/lib/config/package.js b/lib/config/package.js
@@ -131,8 +131,6 @@ PackageJSON.prototype.read = function() {
 
 PackageJSON.prototype.write = function() {
   var pjson = this.jspmPrefix ? {} : this.originalPjson;
-  if (this.jspmPrefix)
-    this.originalPjson.jspm = pjson;
 
   var defaults = this.defaults;
 
@@ -196,6 +194,15 @@ PackageJSON.prototype.write = function() {
   if (!hasProperties(pjson.buildConfig))
     delete pjson.buildConfig;
 
+  // dedupe jspm properties against base properties
+  if (this.jspmPrefix) {
+    for (var p in pjson) {
+      if (this.originalPjson[p] === pjson[p])
+        delete pjson[p];
+    }
+    this.originalPjson.jspm = pjson;
+  }
+
   // NB check that the file hasn't changed since we opened it and if so, prompt
   return asp(fs.writeFile)(this.fileName, JSON.stringify(this.originalPjson, null, 2) + '\n');
 }