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Re: [sup-devel] Adding backward synchronization for Maildir sources
Sup guys,
Sorry for having been so long.
What's new:
- I added an option in sup-sync-back-maildir to merge the :replied and
:forwarded labels/flags so the first time you run the script you
should not lose any information on the IMAP side;
- A way to detect if sup-sync-back-to-maildir should be executed in
order to synchronize your index back to the Maildir source in order to
prevent any loss of information. A magic file is written in the
configuration directory everytime the script is executed and it is
removed when the sync_back_to_maildir option is set from false to
true;
- I fixed a case when messages were not properly updated when they
were remotely modified.
I have pushed the last commits to the maildir-sync branch [0], it is
rebased from master. I also have a branch rebased from next on my own
repository if you'd rather a more up to date branch [1].
Please test and review! For more informations and a howto, read the
message quoted below this mail.
[0] http://gitorious.org/sup/mainline/commits/maildir-sync
[1] http://git.fensalir.fr/?p=dleone/sup.git
Excerpts from Damien Leone's message of ven. juil. 09 18:44:01 +0200 2010:
> Sup guys,
>
> I have been working on backward synchronization for Maildir sources
> last week and I need your help to test and review the code.
>
> I pushed my commits (based on the 'next' branch) to my repo which you
> can find here [0] for the web interface and here [1] for the git
> address.
>
> The following is related to Maildir sources ONLY.
>
> So what does work and what does not (if you don't want to read this,
> scroll to the quick howto below):
>
> - Sup will now stay synchronized with your remote sources by detecting
> if a message has been remotely updated (ie: you change a flag from
> another client), these updates will be applied to your local index and
> your thread-view-mode buffers should be properly refreshed;
>
> - When a message is remotely deleted, it should now disappear from
> your index;
>
> - There is a new configuration option called "sync_back_to_maildir"
> which is false by default. When true, this option updates your actual
> Maildir files when you change a label, this is done in real time
> before being saved to xapian. So for instance if you use offlineimap
> the changes should be synched back to your IMAP server by the next
> poll in Sup (assuming that your before-poll hook runs offlineimap);
>
> - I wrote a "sup-sync-back-maildir" script that will synchronize all
> messages from your sources at once. This should be executed the first
> time BEFORE any polling, otherwise your IMAP server will be synched to
> your Sup index and if you did not used another client to mark your
> emails as read etc. (like me) and to update your IMAP server then you
> will lose all what you did in Sup (labels, etc.);
>
> - I added two new hidden labels in Sup: 'replied' and 'forwarded',
> they are automatically added when replying, forwarding or bouncing a
> message, this is to bring a better Maildir support to Sup, this should
> be invisible for users;
>
> - However you will probably lose all your remote 'replied' and
> 'forwarded' flags after your first backward synchronization to Maildir
> since Sup dropped these labels when it added your messages to xapian.
>
> - Moving a message from a Maildir source to another is not (yet?)
> supported.
>
> So, you should now be able to use multiple clients to handle your
> emails, for instance I can use gmail to mark messages as starred or
> so, it will be reflected in Sup. In the same way, if I mark a message
> as read in Sup it will appear as read in the gmail web interface.
>
> I tested this code with my main account (2 GB and like 15 Maildir
> sources) it works fine so far.
>
> Be warned that it is highly experimental, but if you use offlineimap
> it has a realdelete option so you *should* not lose any email, in the
> worst case it might mess your flags/labels up.
>
> I tested it only with offlineimap working with a gmail account.
>
> Quick howto:
>
> 1. Close sup
> 2. Backup your emails and your xapian index or use another Sup session
> 3. Clone the branch [1]
> 4. IMPORTANT: run "bin/sup-sync-back-maildir" to synchronize the
> Maildirs you wish, check the help
> 5. Add ":sync_back_to_maildir: true" to your config.yaml
> 6. Run and use sup
>
> Please test it and make reviews! :)
>
> NOTE: if you want this to work, get sure that you are not calling
> offlineimap with the '-q' option (as suggested in the wiki) otherwise
> it will ignore the flag updates on IMAP server, so check your
> before-poll hook.
>
> [0] http://git.fensalir.fr/?p=dleone/sup.git
> [1] $ git clone git://fensalir.fr/dleone/sup.git -b maildir-sync
>
--
Damien Leone <damien.leone@fensalir.fr>
Web: http://dleone.fensalir.fr/
GPG: 0x82EB4DDF
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