On Tue July 10 2007 5:03:37 pm Vincent Beffara wrote:
> > Hi,
>
> Hi,
>
> > I am doing some work on OfflineIMAP again. I have
posted what I'm
> > calling a beta of v6.0. This is 5.99.0 and is
available on
> > http://softw
are.complete.org/offlineimap now.
>
> Cool ! BTW, what happened to version 5 ?
Back in 2003, I rewrote OfflineIMAP using Python's Twisted
infrastructure. I
have long been dissatisfied with imaplib.py and thought I
could use a better
IMAP library.
It turned out to be fairly nightmarish. Twisted lacked some
features I
needed, and it was also extremely difficult to debug
programs written in
Twisted.
Back in September of 2003, I had announced the first alpha
of 5.0:
http://lists.co
mplete.org/offlineimap complete.org/2003/09/msg00002.html.gz
which was written in Twisted.
But that got canned due to the problems of working with
Twisted for a project
of this size and complexity.
> Talking about that - how hard would it be to add an
"IMAP server" mode
> to OfflineIMAP, so that syncing could be triggered by
the MUA - in such
> a way that the answered is that from the
"parent" IMAP server when
> connected, with caching on the fly, and the cached
state when offline ?
Hard. IMAP is a complex protocol that can take effort to
get right. I'm not
aware of an IMAP server implementation in Python.
But I'm thinking about v7 already and want to make MUA
integration a priority
there. I think I can do some nice things by hooking into
inotify and
potentially syncing folders as they are accessed on disk.
I am also leaning towards rewriting OfflineIMAP from scratch
in Haskell. I
have wanted to write my own IMAP library for a long time
(due to
deficiencies in imaplib.py), and that's much easier to do in
Haskell than
Python. Haskell also has some more powerful threading tools
that will make
it easier to gracefully handle sync problems with accounts.
I think that
even with my own IMAP library, code size should shrink by
50% and be much
easier to maintain and contribute to.
But this all assumes that I find time somewhere. I keep
hoping that mail
readers will just get good enough that OfflineIMAP becomes
obsolete. I am
annoyed that this hasn't happened in the 5 years since
OfflineIMAP 1.0.0 was
released! I really didn't expect to still need to use
OfflineIMAP 5 years
later.
-- John
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