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#!/usr/bin/python
# Copyright (c) 2009 Canonical Ltd
#
# AUTHOR:
# Michael Vogt <mvo@ubuntu.com>
#
# unattended-upgrade-shutdown - helper that checks if a
# unattended-upgrade is in progress and waits until it exists
#
# This file is part of unattended-upgrades
#
# unattended-upgrades is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.
#
# unattended-upgrades is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with unattended-upgrades; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import apt_pkg
import time
import sys
import logging
import logging.handlers
import gettext
import subprocess
import os.path
from optparse import OptionParser
from gettext import gettext as _
def do_usplash(msg):
if os.path.exists("/sbin/usplash_write"):
logging.debug("Running usplash_write")
subprocess.call(["/sbin/usplash_write","TEXT", msg])
subprocess.call(["/sbin/usplash_write","PULSATE"])
def do_plymouth(msg):
if os.path.exists("/bin/plymouth"):
logging.debug("Running plymouth --text")
subprocess.call(["/bin/plymouth","message", "--text", msg])
if __name__ == "__main__":
# setup gettext
localesApp="unattended-upgrades"
localesDir="/usr/share/locale"
gettext.bindtextdomain(localesApp, localesDir)
gettext.textdomain(localesApp)
parser = OptionParser()
parser.add_option("", "--debug",
action="store_true", dest="debug", default=False,
help="print debug messages")
parser.add_option("", "--delay", default=10,
help="delay in minutes to wait for unattended-upgrades")
parser.add_option("", "--lock-file",
default="/var/run/unattended-upgrades.lock",
help="lock file location")
(options, args) = parser.parse_args()
# setup logging
level = logging.INFO
if options.debug:
level = logging.DEBUG
logging.basicConfig(level=level, format="%(levelname)s - %(message)s")
logger = logging.getLogger()
try:
logger.addHandler(logging.handlers.SysLogHandler(
"/dev/log", logging.handlers.SysLogHandler.LOG_DAEMON))
except Exception, e:
logging.debug("failed to setup syslog logger: %s" % e)
# run
start_time = time.time()
while True:
res = apt_pkg.get_lock(options.lock_file)
logging.debug("GetLock returned %i" % res)
if res > 0:
logging.debug("Lock not taken")
sys.exit(0)
# wait a some seconds and try again
msg = _("Unattended-upgrade in progress during shutdown, "
"sleeping for 5s")
logging.warning(msg)
do_plymouth(msg)
do_usplash(msg)
time.sleep(5)
if (time.time() - start_time) > options.delay*60:
logging.warning(_("Giving up on lockfile after %s delay") % options.delay)
sys.exit(1)
sys.exit(0)
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