Make times easier to read on task list

appengine/swarming/elements/res/imp/tasklist/task-list.html

 <!--
   Copyright 2016 The LUCI Authors. All rights reserved.
   Use of this source code is governed under the Apache License, Version 2.0
   that can be found in the LICENSE file.
 
   This in an HTML Import-able file that contains the definition
   of the following elements:
 
     <task-list>
 
@@ skipping 193 matching lines @@
           </tbody>
         </table>
       </div>
 
     </swarming-app>
 
   </template>
   <script>
   (function(){
     var specialColumns = ["deduped_from", "name", "state"];
+
+    // Given a time attribute like "abandoned_ts", humanTime returns a function
+    // that returns the human-friendly version of that attribute. The human
+    // friendly time was created in task-list-data.
+    function humanTime(attr) {
+      return function(task) {
+        return this._attribute(task, "human_" + attr)[0];
+      }
+    }
     var columnMap = {
+      abandoned_ts: humanTime("abandoned_ts"),
+      completed_ts: humanTime("completed_ts"),
       costs_usd: function(task) {
         return this._attribute(task, "costs_usd", 0)[0];
       },
+      created_ts: humanTime("created_ts"),
+      modified_ts: humanTime("modified_ts"),
+      started_ts: humanTime("started_ts"),
       state: function(task) {
         var state = this._attribute(task, "state")[0];
         if (state === "COMPLETED") {
 
           if (this._attribute(task, "failure", false)[0]) {
             return "COMPLETED (FAILURE)";
           }
           var tryNum = this._attribute(task, "try_number", "-1")[0];
           if (tryNum === "0") {
             return "COMPLETED (DEDUPED)";
           }
           return "COMPLETED (SUCCESS)";
         }
         return state;
       },
     };
     var headerMap = {
       "user": "Requesting User",
     };
-    var specialSort = {};
+
+    // Given a time attribute like "abandoned_ts", humanTime returns a function

[jcgregorio, 2016/08/29 14:02:44]

humanTime -> sortableTime

+    // that compares the tasks based on the attribute.  This is used for sorting.
+    function sortableTime(attr) {
+      // sort times based on the string they come with, formatted like
+      // "2016-08-16T13:12:40.606300" which sorts correctly.  Locale time
+      // (used in the columns), does not.
+      return function(dir, a, b) {
+        var aCol = this._attribute(a, attr)[0];
+        var bCol = this._attribute(b, attr)[0];
+
+        return dir * swarming.naturalCompare(aCol, bCol);
+      }
+    }
+    var specialSort = {
+      abandoned_ts: sortableTime("abandoned_ts"),
+      completed_ts: sortableTime("completed_ts"),
+      created_ts: sortableTime("created_ts"),
+      modified_ts: sortableTime("modified_ts"),
+      started_ts: sortableTime("started_ts"),
+    };
 
     Polymer({
       is: 'task-list',
       behaviors: [
           SwarmingBehaviors.DynamicTableBehavior,
       ],
 
       properties: {
         client_id: {
           type: String,
@@ skipping 98 matching lines @@
         if (state === "RUNNING" || state === "PENDING") {
           return "pending";
         }
         return "";
       }
 
     });
   })();
   </script>
 </dom-module>