Devserver: run the cron over the examples.

chrome/common/extensions/docs/server2/subversion_file_system.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from file_system import FileSystem, FileNotFoundError, StatInfo, ToUnicode
 from future import Future
 import logging
 import re
 import xml.dom.minidom as xml
 from xml.parsers.expat import ExpatError
@@ skipping 18 matching lines @@
     dom = xml.parseString(directory)
     files = [elem.childNodes[0].data for elem in dom.getElementsByTagName('a')]
     if '..' in files:
       files.remove('..')
     return files
 
   def Get(self):
     for path, future in self._fetches:
       result = future.Get()
       if result.status_code == 404:
-        raise FileNotFoundError(path)
+        raise FileNotFoundError('Got 404 when fetching %s for Get' % path)
       elif path.endswith('/'):
         self._value[path] = self._ListDir(result.content)
       elif not self._binary:
         self._value[path] = ToUnicode(result.content)
       else:
         self._value[path] = result.content
     if self._error is not None:
       raise self._error
     return self._value
 
@@ skipping 68 matching lines @@
                            for path, version in child_versions.iteritems()))
 
     # Bleh, but, this data is so unreliable. There are actually some empty file
     # listings caused by git/svn/something not cleaning up empty dirs.
     return StatInfo('0', {})
 
   def Stat(self, path):
     directory = path.rsplit('/', 1)[0]
     result = self._stat_fetcher.Fetch(directory + '/')
     if result.status_code == 404:
-      raise FileNotFoundError(path)
+      raise FileNotFoundError(
+          'Got 404 when fetching %s from %s for Stat' % (path, directory))
     stat_info = self._CreateStatInfo(result.content)
     if not path.endswith('/'):
       filename = path.rsplit('/', 1)[-1]
       if filename not in stat_info.child_versions:
-        raise FileNotFoundError(path)
+        raise FileNotFoundError('%s was not in child versions' % filename)
       stat_info.version = stat_info.child_versions[filename]
     return stat_info
 
   @classmethod
   def GetVersion(cls):
     return _VERSION