Fix but in getIdleSeconds() where ioreg output is split, but there are inconsistent number of whitespaces.

I ran into a machine where "parts" was:  ['|', '|', '"HIDIdleTime"', '=', '1458195167613966'], and since parts[3] is "=" getIdleSeconds() was crashing trying to convert it to int().

So return int(int(parts[3])/1000000000) should really be parts[4] on this machine, but this may be inconsistent on different machines?

# /usr/sbin/ioreg -c IOHIDSystem -d 4 | grep Idle
   | |     "HIDIdleTime" = 1458351496253133

So let's just use regex to parse the integer out of the line more safely.



git-svn-id: http://munki.googlecode.com/svn/trunk@1103 a4e17f2e-e282-11dd-95e1-755cbddbdd66

code/client/managedsoftwareupdate

@@ -21,6 +21,7 @@ managedsoftwareupdate
 import grp
 import optparse
 import os
+import re
 import stat
 import subprocess
 import sys
@@ -64,8 +65,11 @@ def getIdleSeconds():
     ioreglines = str(output).splitlines()
     for line in ioreglines:
         if 'Idle' in line:
-            parts = line.split()
-            return int(int(parts[3])/1000000000)
+            idle_re = re.search(' (\d+)', line)
+            idle_time = 0
+            if idle_re:
+              idle_time = idle_re.group(0)
+            return int(int(idle_time)/1000000000)
 
 
 def networkUp():