hydrus/server.py

149 lines
4.2 KiB
Python

#!/usr/bin/env python2
# This program is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What The Fuck You Want
# To Public License, Version 2, as published by Sam Hocevar. See
# http://sam.zoy.org/wtfpl/COPYING for more details.
try:
import locale
try: locale.setlocale( locale.LC_ALL, '' )
except: pass
from include import HydrusExceptions
from include import HydrusConstants as HC
from include import HydrusData
from include import HydrusPaths
import os
import sys
import time
from include import ServerController
import threading
from twisted.internet import reactor
from include import HydrusGlobals as HG
from include import HydrusLogger
import traceback
#
import argparse
argparser = argparse.ArgumentParser( description = 'hydrus network server' )
argparser.add_argument( 'action', default = 'start', nargs = '?', choices = [ 'start', 'stop', 'restart' ], help = 'either start this server (default), or stop an existing server, or both' )
argparser.add_argument( '-d', '--db_dir', help = 'set an external db location' )
argparser.add_argument( '--no_daemons', action='store_true', help = 'run without background daemons' )
argparser.add_argument( '--no_wal', action='store_true', help = 'run without WAL db journalling' )
result = argparser.parse_args()
action = result.action
if result.db_dir is None:
db_dir = HC.DEFAULT_DB_DIR
if not HydrusPaths.DirectoryIsWritable( db_dir ):
db_dir = os.path.join( os.path.expanduser( '~' ), 'Hydrus' )
else:
db_dir = result.db_dir
db_dir = HydrusPaths.ConvertPortablePathToAbsPath( db_dir, HC.BASE_DIR )
try:
HydrusPaths.MakeSureDirectoryExists( db_dir )
except:
raise Exception( 'Could not ensure db path ' + db_dir + ' exists! Check the location is correct and that you have permission to write to it!' )
no_daemons = result.no_daemons
no_wal = result.no_wal
#
action = ServerController.ProcessStartingAction( db_dir, action )
with HydrusLogger.HydrusLogger( db_dir, 'server' ) as logger:
try:
if action in ( 'stop', 'restart' ):
ServerController.ShutdownSiblingInstance( db_dir )
if action in ( 'start', 'restart' ):
HydrusData.Print( u'Initialising controller\u2026' )
threading.Thread( target = reactor.run, kwargs = { 'installSignalHandlers' : 0 } ).start()
controller = ServerController.Controller( db_dir, no_daemons, no_wal )
controller.Run()
except HydrusExceptions.PermissionException as e:
error = HydrusData.ToUnicode( e )
HydrusData.Print( error )
except:
error = traceback.format_exc()
HydrusData.Print( 'Hydrus server failed' )
HydrusData.Print( traceback.format_exc() )
finally:
HG.view_shutdown = True
HG.model_shutdown = True
try: controller.pubimmediate( 'wake_daemons' )
except: pass
reactor.callFromThread( reactor.stop )
except HydrusExceptions.PermissionException as e:
HydrusData.Print( e )
except Exception as e:
import traceback
import os
print( traceback.format_exc() )
if 'db_dir' in locals() and os.path.exists( db_dir ):
dest_path = os.path.join( db_dir, 'crash.log' )
with open( dest_path, 'wb' ) as f:
f.write( traceback.format_exc() )
print( 'Critical error occured! Details written to crash.log!' )