docker-offlineimap/offlineimap/folder/LocalStatus.py
Sebastian Spaeth 80e87d0d99 Don't pass in 'root' as para to LocalStatusFolders
They have the Repository() which contains the root, so no need to pass
it in as an extra parameter. Rename repository.LocalStatus()'s
self.directory to self.root for consistency with other backends.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:12 +02:00

149 lines
4.7 KiB
Python

# Local status cache virtual folder
# Copyright (C) 2002 - 2011 John Goerzen & contributors
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
from Base import BaseFolder
import os
import threading
try: # python 2.6 has set() built in
set
except NameError:
from sets import Set as set
magicline = "OFFLINEIMAP LocalStatus CACHE DATA - DO NOT MODIFY - FORMAT 1"
class LocalStatusFolder(BaseFolder):
def __init__(self, name, repository):
super(LocalStatusFolder, self).__init__(name, repository)
self.sep = '.'
self.filename = os.path.join(self.getroot(), self.getfolderbasename())
self.messagelist = {}
self.savelock = threading.Lock()
self.doautosave = self.config.getdefaultboolean("general", "fsync",
False)
"""Should we perform fsyncs as often as possible?"""
def storesmessages(self):
return 0
def isnewfolder(self):
return not os.path.exists(self.filename)
def getname(self):
return self.name
def getroot(self):
return self.repository.root
def getsep(self):
return self.sep
def getfullname(self):
return self.filename
def deletemessagelist(self):
if not self.isnewfolder():
os.unlink(self.filename)
def cachemessagelist(self):
if self.isnewfolder():
self.messagelist = {}
return
file = open(self.filename, "rt")
self.messagelist = {}
line = file.readline().strip()
if not line and not line.read():
# The status file is empty - should not have happened,
# but somehow did.
file.close()
return
assert(line == magicline)
for line in file.xreadlines():
line = line.strip()
try:
uid, flags = line.split(':')
uid = long(uid)
flags = set(flags)
except ValueError, e:
errstr = "Corrupt line '%s' in cache file '%s'" % \
(line, self.filename)
self.ui.warn(errstr)
raise ValueError(errstr)
self.messagelist[uid] = {'uid': uid, 'flags': flags}
file.close()
def save(self):
self.savelock.acquire()
try:
file = open(self.filename + ".tmp", "wt")
file.write(magicline + "\n")
for msg in self.messagelist.values():
flags = msg['flags']
flags = ''.join(sorted(flags))
file.write("%s:%s\n" % (msg['uid'], flags))
file.flush()
if self.doautosave:
os.fsync(file.fileno())
file.close()
os.rename(self.filename + ".tmp", self.filename)
if self.doautosave:
fd = os.open(os.path.dirname(self.filename), os.O_RDONLY)
os.fsync(fd)
os.close(fd)
finally:
self.savelock.release()
def getmessagelist(self):
return self.messagelist
def savemessage(self, uid, content, flags, rtime):
if uid < 0:
# We cannot assign a uid.
return uid
if uid in self.messagelist: # already have it
self.savemessageflags(uid, flags)
return uid
self.messagelist[uid] = {'uid': uid, 'flags': flags, 'time': rtime}
self.save()
return uid
def getmessageflags(self, uid):
return self.messagelist[uid]['flags']
def getmessagetime(self, uid):
return self.messagelist[uid]['time']
def savemessageflags(self, uid, flags):
self.messagelist[uid]['flags'] = flags
self.save()
def deletemessage(self, uid):
self.deletemessages([uid])
def deletemessages(self, uidlist):
# Weed out ones not in self.messagelist
uidlist = [uid for uid in uidlist if uid in self.messagelist]
if not len(uidlist):
return
for uid in uidlist:
del(self.messagelist[uid])
self.save()