Re: gnus and imap

[Reiner Steib <reinersteib+gmane@imap.cc>]

On Sun, Aug 24 2008, David Engster wrote:

> Vitaly Mayatskikh <v.mayatskih@gmail.com> writes:
>> Yes, but we still have to fix all this convoluted code (for
>> gnus-unread-info or whatever). Unread articles calculations (count of
>> articles, list of articles) are totally wrong for the case of IMAP.
>
> I wonder why it's that bad with the Zimbra imapd. Doesn't it produce
> contiguous UIDs? I mean, I also get wrong article numbers with dovecot,
> but only in cases when I delete or move articles, but these are not
> "totally" wrong. As the documentation says, the number is an estimate,
> after all.

In my nnimap usage, I don't see wrong article counts.  There's also
code introduced in Oort that's supposed to give correct unread counts:

,----[ (info "(gnus)Oort Gnus") ]
|         * Unread count correct in nnimap groups.
| 
|           The estimated number of unread articles in the group buffer
|           should now be correct for nnimap groups.  This is achieved
|           by calling `nnimap-fixup-unread-after-getting-new-news' from
|           the `gnus-setup-news-hook' (called on startup) and
|           `gnus-after-getting-new-news-hook'. (called after getting
|           new mail).  If you have modified those variables from the
|           default, you may want to add
|           `nnimap-fixup-unread-after-getting-new-news' again.  If you
|           were happy with the estimate and want to save some (minimal)
|           time when getting new mail, remove the function.
`----

BTW, the functions is
`gnus-fixup-nnimap-unread-after-getting-new-news' not
`nnimap-fixup-unread-after-getting-new-news':

,----[ ChangeLog.2 ]
| 2002-09-27  Simon Josefsson  <jas@extundo.com>
| 
| 	* gnus-start.el (gnus-fixup-nnimap-unread-after-getting-new-news): New.
| 	(gnus-setup-news-hook): Use it.
| 	(gnus-after-getting-new-news-hook): Ditto.
| 
| 	* nnimap.el (nnimap-fixup-unread-after-getting-new-news): Remove.
`----

> BTW, there was also a patch for this, though for nnml, but it was not
> integrated into Gnus:
>
> http://thread.gmane.org/gmane.emacs.gnus.general/56714

We have papers on file for David Hanak.  So if his code is useful, we
could use it.

> The comments on this are interesting, especially the ones from Kevin
> Greiner, which led me to the above request-group-articles function.

Bye, Reiner.
-- 
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