AU: moved updated marker from /tmp to /var/run.

client/common_lib/chromiumos_updater.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import httplib
 import logging
 import re
 import socket
 import urlparse
 
 from autotest_lib.client.bin import chromeos_constants
 from autotest_lib.client.common_lib import error
 
 STATEFULDEV_UPDATER = '/usr/local/bin/stateful_update'
 UPDATER_BIN = '/usr/bin/update_engine_client'
 UPDATER_IDLE = 'UPDATE_STATUS_IDLE'
 UPDATER_NEED_REBOOT = 'UPDATE_STATUS_UPDATED_NEED_REBOOT'
+UPDATED_MARKER = '/var/run/update_engine_autoupdate_completed'
 
 
 class ChromiumOSError(error.InstallError):
     """Generic error for ChromiumOS-specific exceptions."""
     pass
 
 
 def url_to_version(update_url):
     # The ChromiumOS updater respects the last element in the path as
     # the requested version. Parse it out.
     return urlparse.urlparse(update_url).path.split('/')[-1]
 
 
 class ChromiumOSUpdater():
     def __init__(self, host=None, update_url=None):
         self.host = host
         self.update_url = update_url
         self.update_version = url_to_version(update_url)
 
 
     def check_update_status(self):
         update_status_cmd = ' '.join([UPDATER_BIN, '-status', '2>&1',
                                       '| grep CURRENT_OP'])
         update_status = self._run(update_status_cmd)
         return update_status.stdout.strip().split('=')[-1]
 
 
     def reset_update_engine(self):
         logging.info('Resetting update-engine.')
-        self._run('rm -f /tmp/update_engine_autoupdate_completed')
+        self._run('rm -f %s' % UPDATED_MARKER)
         try:
             self._run('initctl stop update-engine')
         except error.AutoservRunError, e:
             logging.warn('Stopping update-engine service failed. Already dead?')
         self._run('initctl start update-engine')
         # May need to wait if service becomes slow to restart.
         if self.check_update_status() != UPDATER_IDLE:
             raise ChromiumOSError('%s is not in an installable state' %
                                   self.host.hostname)
 
@@ skipping 97 matching lines @@
         if not version_match:
             raise ChromiumOSError('Unable to get build ID from %s. Found "%s"',
                                   self.host.hostname, version)
         version, build_id, builder = version_match.groups()
         build_match = re.match(r'.*: (\d+)', builder)
         if build_match:
             builder_num = '-b%s' % build_match.group(1)
         else:
             builder_num = ''
         return '%s-r%s%s' % (version, build_id, builder_num)