From aead1fcc2953c48de4a128fe1f8dd334f67d746e Mon Sep 17 00:00:00 2001
From: jonny64 <astro64m@gmail.com>
Date: Thu, 5 Feb 2015 19:23:57 +0000
Subject: [PATCH] logs page: slow on huge logs - 'show last lines' option

---
 .../containerLogs/containerLogsController.js        | 13 ++++++++++++-
 app/components/containerLogs/containerlogs.html     | 12 ++++++++++--
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/app/components/containerLogs/containerLogsController.js b/app/components/containerLogs/containerLogsController.js
index ddd614d79..fbbee45c3 100644
--- a/app/components/containerLogs/containerLogsController.js
+++ b/app/components/containerLogs/containerLogsController.js
@@ -4,6 +4,7 @@ function($scope, $routeParams, $location, $anchorScroll, ContainerLogs, Containe
     $scope.stdout = '';
     $scope.stderr = '';
     $scope.showTimestamps = false;
+    $scope.tailLines = 2000;
 
     ViewSpinner.spin();
     Container.get({id: $routeParams.id}, function(d) {
@@ -19,7 +20,13 @@ function($scope, $routeParams, $location, $anchorScroll, ContainerLogs, Containe
     });
 
     function getLogs() {
-        ContainerLogs.get($routeParams.id, {stdout: 1, stderr: 0, timestamps: $scope.showTimestamps}, function(data, status, headers, config) {
+        console.log($scope.tailLines);
+        ContainerLogs.get($routeParams.id, {
+            stdout: 1,
+            stderr: 0,
+            timestamps: $scope.showTimestamps,
+            tail: $scope.tailLines
+        }, function(data, status, headers, config) {
             // Replace carriage returns twith newlines to clean up output
             $scope.stdout = data.replace(/[\r]/g, '\n');
         });
@@ -45,4 +52,8 @@ function($scope, $routeParams, $location, $anchorScroll, ContainerLogs, Containe
     $scope.toggleTimestamps = function() {
         getLogs();
     };
+
+    $scope.toggleTail = function() {
+        getLogs();
+    };
 }]);
diff --git a/app/components/containerLogs/containerlogs.html b/app/components/containerLogs/containerlogs.html
index ea81ad08e..46dfacb1d 100644
--- a/app/components/containerLogs/containerlogs.html
+++ b/app/components/containerLogs/containerlogs.html
@@ -6,8 +6,16 @@
             <button class="btn btn-warning" ng-click="scrollTo('stderr')">stderr</button>
         </div>
         <div class="pull-right">
-            <input id="timestampToggle" type="checkbox" ng-model="showTimestamps" 
-                ng-change="toggleTimestamps()"/> <label for="timestampToggle">Display Timestamps</label>
+            <span style="padding-right: 10px">
+                <label for="tailLines">Show last</label>
+                <input id="tailLines" type="text" size="1" maxlength="4"
+                    ng-model="tailLines" ng-keypress="($event.which === 13)? toggleTail() : 0"/>
+                <label for="tailLines">lines</label>
+            </span>
+            <span>
+                <input id="timestampToggle" type="checkbox" ng-model="showTimestamps"
+                    ng-change="toggleTimestamps()"/> <label for="timestampToggle">Display Timestamps</label>
+            </span>
         </div>
     </div>