[PATCH] koji: Look at tail of build/root.log

[Kedar Sovani]

A lot of times the purpose of looking at the build logs is to look at the error
which usually appear at the end of the log. Provide a mechanism to look at the tail
instead of downloading the entire log.  (offset = -2000 is probably reasonable
enough as a default?)

Unsure if it applies to a wider usecase. 

Please consider for inclusion.

Signed-Off-by: Kedar Sovani <kedars at marvell.com>

--- ./www/kojiweb/taskinfo.chtml.orig	2009-04-27 11:41:35.000000000 +0200
+++ ./www/kojiweb/taskinfo.chtml	2009-05-03 10:06:55.000000000 +0200
@@ -287,7 +287,11 @@
       <th>Output</th>
       <td>
         #for $filename in $output
-        <a href="getfile?taskID=$task.id&name=$urllib.quote($filename)">$filename</a><br/>
+        <a href="getfile?taskID=$task.id&name=$urllib.quote($filename)">$filename</a> 
+	   #if $filename == 'build.log' or $filename == 'root.log'
+	   (<a href="getfile?taskID=$task.id&name=$urllib.quote($filename)&offset=-2000">tail</a>)
+	   #end if
+	<br/>
         #end for
         #if $task.state not in ($koji.TASK_STATES.CLOSED, $koji.TASK_STATES.CANCELED, $koji.TASK_STATES.FAILED) and \
             $task.method in ('buildSRPMFromSCM', 'buildArch', 'createrepo')