Re: [sup-devel] Adding backward synchronization for Maildir sources

["Edward Z. Yang" <ezyang@MIT.EDU>]

Here are some suggestions...

Excerpts from Damien Leone's message of Fri Jul 09 12:44:01 -0400 2010:
> - 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 would recommend having some sort of flag like 'sync-back'd' programatically
generated by sup-sync-back-maildir so that Sup will refuse to start if
you turned on sync-backs without running this command.

> - 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.

It seems to me that merging the Maildir flags and the Sup flags would
let you preserve this, but for heavy Sup users this isn't a big deal.

> - Moving a message from a Maildir source to another is not (yet?)
> supported.

I think this will be a pretty killer feature to have, because it means
we can then assign "primary" tags and use those to have sync-backs move
messages between Maildir folders (on the same account, I imagine), which
would translate into a folder-sorted webmail view, which is about the
best you can do without first-class label support in Maildir.  I know of
at least one friend who this would be a deal-maker.

Cheers,
Edward
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