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#!/usr/bin/python
# Copyright (C) 2009 Canonical
#
# Authors:
# Michael Vogt
#
# This program 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; version 3.
#
# This program 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
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import apt
import locale
import gettext
import logging
import os
import os.path
import sys
import time
import xapian
from optparse import OptionParser
from softwarecenter.enums import *
from softwarecenter.db.update import rebuild_database
# dbus may not be available during a upgrade so we
# only set it up if its there
try:
import dbus
import dbus.service
import glib
import gobject # without gobject it will crash
from dbus.mainloop.glib import DBusGMainLoop
except ImportError:
pass
# add a bit of extra time between sending the "we-rebuild-the-db-now"
# signal and the actual rebuilding to help the applications to shutdown
# the DB access
APP_CATCHUP_DELAY = 2
# the language pack directory that we need for the triggers checking
LANGPACKDIR = "/usr/share/locale-langpack"
class UpdateSoftwarecenterDbus(dbus.service.Object):
"""
This is a helper to provide the UpdateSoftwarecenterIFace
"""
def __init__(self, bus_name,
object_path='/com/ubuntu/Softwarecenter'):
dbus.service.Object.__init__(self, bus_name, object_path)
@dbus.service.method('com.ubuntu.Softwarecenter')
def IsRebuilding(self):
return True
@dbus.service.signal(dbus_interface='com.ubuntu.Softwarecenter',
signature='b')
def DatabaseRebuilding(self, isRebuilding):
logging.debug("Sending DatabaseRebuilding signal '%s'" % isRebuilding)
if __name__ == "__main__":
try:
locale.setlocale(locale.LC_ALL, "")
except Exception, e:
logging.warn("setlocale failed with '%s'" % e)
# parser
parser = OptionParser()
parser.add_option("--triggered", "", default="",
help="triggered from dpkg")
parser.add_option("--debug", "", action="store_true", default=False,
help="show debug output")
(options, args) = parser.parse_args()
#logging.basicConfig(level=logging.INFO)
if options.debug:
logging.basicConfig(level=logging.DEBUG)
# check if we are dpkg triggered because of langpack change
# and avoid unneeded database rebuilds by checking the timestamp
# of the app-install-data mo file
if options.triggered and options.triggered == LANGPACKDIR:
logging.debug("triggered with '%s'" % options.triggered)
mofile = gettext.find("app-install-data")
if not mofile:
logging.info("no translation information in database needed")
sys.exit(0)
mo_time = os.path.getctime(mofile)
pathname = os.path.join(XAPIAN_BASE_PATH, "xapian")
if os.path.exists(pathname):
db = xapian.Database(pathname)
mo_db_time = db.get_metadata("app-install-mo-time")
logging.debug("mo_time: %s db_mo_time: %s" % (mo_time, mo_db_time))
if str(mo_time) == mo_db_time:
logging.info("translation information in database is up-to-date")
sys.exit(0)
# setup dbus
dbus_controller = None
try:
DBusGMainLoop(set_as_default=True)
bus = dbus.SystemBus()
bus_name = dbus.service.BusName('com.ubuntu.Softwarecenter', bus)
dbus_controller = UpdateSoftwarecenterDbus(bus_name)
dbus_controller.DatabaseRebuilding(True)
time.sleep(APP_CATCHUP_DELAY)
except:
logging.warn("Failed to setup dbus (ignoring)")
# rebuild and send signal when done
try:
# setup path
pathname = os.path.join(XAPIAN_BASE_PATH, "xapian")
if not os.path.exists(pathname):
os.makedirs(pathname)
# rebuild the database, the default context is run to ensure
# dbus querries are processed
rebuild_database(pathname)
finally:
# signal that the xapian db is valid again
if dbus_controller:
time.sleep(APP_CATCHUP_DELAY)
dbus_controller.DatabaseRebuilding(False)
context = glib.main_context_default()
while context.pending():
context.iteration()
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