From f742d972171ee3df309542075ea058a13fe3b92f Mon Sep 17 00:00:00 2001
From: Gavin Joyce <gavinjoyce@gmail.com>
Date: Thu, 12 Jan 2017 16:45:42 +0000
Subject: [PATCH] [BUGFIX beta] only `logLibraryVersions` in debug mode

---
 .../lib/system/application.js                 | 33 ++++++++++---------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/packages/ember-application/lib/system/application.js b/packages/ember-application/lib/system/application.js
index 7d6e0a81832..dfb25cf4a7b 100644
--- a/packages/ember-application/lib/system/application.js
+++ b/packages/ember-application/lib/system/application.js
@@ -10,7 +10,8 @@ import {
   libraries,
   isTesting,
   get,
-  run
+  run,
+  runInDebug
 } from 'ember-metal';
 import {
   Namespace,
@@ -339,7 +340,7 @@ const Application = Engine.extend({
     }
 
     registerLibraries();
-    logLibraryVersions();
+    runInDebug(() => logLibraryVersions());
 
     // Start off the number of deferrals at 1. This will be decremented by
     // the Application's own `boot` method.
@@ -1050,23 +1051,25 @@ function registerLibraries() {
 }
 
 function logLibraryVersions() {
-  if (ENV.LOG_VERSION) {
-    // we only need to see this once per Application#init
-    ENV.LOG_VERSION = false;
-    let libs = libraries._registry;
+  runInDebug(() => {
+    if (ENV.LOG_VERSION) {
+      // we only need to see this once per Application#init
+      ENV.LOG_VERSION = false;
+      let libs = libraries._registry;
 
-    let nameLengths = libs.map(item => get(item, 'name.length'));
+      let nameLengths = libs.map(item => get(item, 'name.length'));
 
-    let maxNameLength = Math.max.apply(this, nameLengths);
+      let maxNameLength = Math.max.apply(this, nameLengths);
 
-    debug('-------------------------------');
-    for (let i = 0; i < libs.length; i++) {
-      let lib = libs[i];
-      let spaces = new Array(maxNameLength - lib.name.length + 1).join(' ');
-      debug([lib.name, spaces, ' : ', lib.version].join(''));
+      debug('-------------------------------');
+      for (let i = 0; i < libs.length; i++) {
+        let lib = libs[i];
+        let spaces = new Array(maxNameLength - lib.name.length + 1).join(' ');
+        debug([lib.name, spaces, ' : ', lib.version].join(''));
+      }
+      debug('-------------------------------');
     }
-    debug('-------------------------------');
-  }
+  });
 }
 
 export default Application;