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maxage: fix timezone issues, remove IMAP-IMAP support, add startdate option

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1. When using maxage, local and remote messagelists are supposed to only
contain messages from at most maxage days ago. But local and remote used
different timezones to calculate what "maxage days ago" means, resulting
in removals on one side. Now, we ask the local folder for maxage days'
worth of mail, find the lowest UID, and then ask the remote folder for
all UID's starting with that lowest one.

2. maxage was fundamentally wrong in the IMAP-IMAP case: it assumed that
remote messages have UIDs in the same order as their local counterparts,
which could be false, e.g. when messages are copied in quick succession.
So, remove support for maxage in the IMAP-IMAP case.

3. Add startdate option for IMAP-IMAP syncs: use messages from the given
repository starting at startdate, and all messages from the other
repository. In the first sync, the other repository must be empty.

4. Allow maxage to be specified either as number of days to sync (as
previously) or as a fixed date.

Signed-off-by: Janna Martl <janna.martl109@gmail.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This commit is contained in:
Janna Martl
2015-04-07 01:14:11 -07:00
committed by Nicolas Sebrecht
parent 71693b7d8c
commit 8096f6cd5b
9 changed files with 361 additions and 128 deletions
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8
offlineimap/folder/Gmail.py
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@ -121,16 +121,18 @@ class GmailFolder(IMAPFolder):
# TODO: merge this code with the parent's cachemessagelist:
# TODO: they have too much common logics.
def cachemessagelist(self):
def cachemessagelist(self, min_date=None, min_uid=None):
if not self.synclabels:
return super(GmailFolder, self).cachemessagelist()
return super(GmailFolder, self).cachemessagelist(
min_date=min_date, min_uid=min_uid)
self.messagelist = {}
self.ui.collectingdata(None, self)
imapobj = self.imapserver.acquireconnection()
try:
msgsToFetch = self._msgs_to_fetch(imapobj)
msgsToFetch = self._msgs_to_fetch(
imapobj, min_date=min_date, min_uid=min_uid)
if not msgsToFetch:
return # No messages to sync