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#!/usr/bin/python
# ubuntuone-launch - Ubuntu One storage synchronization daemon startup helper
#
# Author: John Lenton <john.lenton@canonical.com>
#
# Copyright 2010 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
"""
Ubuntu One storage synchronization daemon (syncdaemon) startup helper.
This script decides whether to start and connect syncdaemon.
* If you've never used Ubuntu One file sync, or if you've disabled
file sync via Ubuntu One control panel (or equivalently via setting
files_sync_enabled to False in the syncdaemon configuration file),
syncdaemon is not started, and nothing happens as a result of this
script being run.
* otherwise if syncdaemon is not already running it is started, and
local rescan is allowed to finish.
* if syncdaemon has never synced to the server, or if there are no
credentials for Ubuntu One in the keyring, nothing further happens.
* otherwise, syncdaemon is asked to connect.
"""
import sys
import os
U1ROOT = os.path.expanduser('~/Ubuntu One/')
if __name__ == '__main__':
# this check is done early to speed up startup on people who are not
# (yet) using the service (this way avoids all the imports).
if not os.path.isdir(U1ROOT):
# no directory, just quit
sys.exit(1)
import dbus
import glib
import gobject
from dbus.mainloop.glib import DBusGMainLoop
from twisted.internet import defer
from ubuntuone.syncdaemon.config import get_user_config
from ubuntuone.platform.tools import SyncDaemonTool, is_already_running
@defer.inlineCallbacks
def main():
"""Start syncdaemon and ask it to connect, if possible."""
gobject.set_application_name("ubuntuone-launch")
files_sync_enabled = get_user_config().get_files_sync_enabled()
if not files_sync_enabled:
# SD will not start (has been disabled by user)
raise RuntimeError("File sync is disabled")
loop = DBusGMainLoop(set_as_default=True)
bus = dbus.SessionBus(mainloop=loop)
sync_daemon_tool = SyncDaemonTool(bus)
running = yield is_already_running(bus=bus)
if not running:
# have SD start
yield sync_daemon_tool.start()
yield sync_daemon_tool.wait_for_signal('StatusChanged',
lambda a: a.get('name', '') == 'READY')
if __name__ == '__main__':
d = main()
# os._exit feels like it's cheating, but it's simple and fast
d.addCallbacks(lambda _: os._exit(0), lambda _: os._exit(1))
mainloop = glib.MainLoop()
mainloop.run()
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