From eb8a713caac13de61321970c4dc2715e1c0929f2 Mon Sep 17 00:00:00 2001
From: Phil Hughes <me@iamphill.com>
Date: Wed, 7 Dec 2016 09:19:08 +0000
Subject: Fixed timeago re-rendering every element

Fixes a performance regression that was causing timeago to get re-rendered on every element & therefore adding a lot of new setTimeouts
---
 app/assets/javascripts/lib/utils/datetime_utility.js | 4 +++-
 changelogs/unreleased/timeago-perf-fix.yml           | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 changelogs/unreleased/timeago-perf-fix.yml

diff --git a/app/assets/javascripts/lib/utils/datetime_utility.js b/app/assets/javascripts/lib/utils/datetime_utility.js
index 963d2851e5f..e8e502694d6 100644
--- a/app/assets/javascripts/lib/utils/datetime_utility.js
+++ b/app/assets/javascripts/lib/utils/datetime_utility.js
@@ -29,7 +29,7 @@
         setTimeago = true;
       }
 
-      $timeagoEls.each(function() {
+      $timeagoEls.filter(':not([data-timeago-rendered])').each(function() {
         var $el = $(this);
         $el.attr('title', gl.utils.formatDate($el.attr('datetime')));
 
@@ -39,6 +39,8 @@
             template: '<div class="tooltip local-timeago" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>'
           });
         }
+
+        $el.attr('data-timeago-rendered', true);
         gl.utils.renderTimeago($el);
       });
     };
diff --git a/changelogs/unreleased/timeago-perf-fix.yml b/changelogs/unreleased/timeago-perf-fix.yml
new file mode 100644
index 00000000000..265e7db29a9
--- /dev/null
+++ b/changelogs/unreleased/timeago-perf-fix.yml
@@ -0,0 +1,4 @@
+---
+title: Fixed timeago re-rendering every timeago
+merge_request: 
+author: 
-- 
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