s/GuiCacheAgeSecs/CheckResultsCacheSeconds/ per a discussion with gneagle.

Also, add to default_prefs, even though default is None/unset, a rrmiddleton pointed out this documents which prefs MSU might use.

code/Managed Software Update/MSUAppDelegate.py

@@ -121,7 +121,8 @@ class MSUAppDelegate(NSObject):
             # otherwise, only check for updates if the last check is over the
             # configured manualcheck cache age max.
             max_cache_age = (
-                munki.pref('GuiCacheAgeSecs') or DEFAULT_GUI_CACHE_AGE_SECS)
+                munki.pref('CheckResultsCacheSeconds') or
+                DEFAULT_GUI_CACHE_AGE_SECS)
             if lastcheck.timeIntervalSinceNow() * -1 > int(max_cache_age):
                 self.checkForUpdates()
                 return
@@ -133,8 +134,8 @@ class MSUAppDelegate(NSObject):
             if self._listofupdates:
                 self.displayUpdatesWindow()
             else:
-                # only check for updates if GuiCacheAgeSecs is not defined.
+                # only check for updates if cache secs config is not defined.
-                if munki.pref('GuiCacheAgeSecs'):
+                if munki.pref('CheckResultsCacheSeconds'):
                     self.mainWindowController.theWindow.makeKeyAndOrderFront_(self)
                     self.noUpdatesAlert()
                 else:

code/Managed Software Update/munki.py

@@ -128,6 +128,7 @@ def pref(pref_name):
         'AppleSoftwareUpdatesOnly': False,
         'ShowRemovalDetail': False,
         'InstallRequiresLogout': False
+        'CheckResultsCacheSeconds': None,
     }
     pref_value = CFPreferencesCopyAppValue(pref_name, BUNDLE_ID)
     if pref_value == None:
@@ -211,25 +212,25 @@ def earliestForceInstallDate():
     Returns None or earliest force_install_after_date converted to local time
     """
     earliest_date = None
-    
+
     installinfo = getInstallInfo()
-            
+
     for install in installinfo.get('managed_installs', []):
         this_force_install_date = install.get('force_install_after_date')
-        
+
         if this_force_install_date:
             this_force_install_date = discardTimeZoneFromDate(
                 this_force_install_date)
             if not earliest_date or this_force_install_date < earliest_date:
                 earliest_date = this_force_install_date
-            
+
     return earliest_date
 
 
 def discardTimeZoneFromDate(the_date):
     """Input: NSDate object
     Output: NSDate object with same date and time as the UTC.
-    In Los Angeles (PDT), '2011-06-20T12:00:00Z' becomes 
+    In Los Angeles (PDT), '2011-06-20T12:00:00Z' becomes
     '2011-06-20 12:00:00 -0700'.
     In New York (EDT), it becomes '2011-06-20 12:00:00 -0400'.
     """
@@ -356,7 +357,7 @@ def logoutAndUpdate():
 
     try:
         if not os.path.exists(INSTALLATLOGOUTFILE):
-            open(INSTALLATLOGOUTFILE, 'w').close()    
+            open(INSTALLATLOGOUTFILE, 'w').close()
         logoutNow()
     except (OSError, IOError):
         return 1
@@ -384,7 +385,7 @@ def justUpdate():
         return 0
     except (OSError, IOError):
         return 1
-    
+
 
 def getRunningProcesses():
     """Returns a list of paths of running processes"""