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From: Reiner Steib <reinersteib+gmane@imap.cc>
Newsgroups: gmane.emacs.gnus.general
Subject: Re: Getting rid of the zombies in dynamically created groups
Date: Wed, 26 Sep 2007 20:38:20 +0200
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On Wed, Sep 26 2007, Georg C. F. Greve wrote:

> in the course of integration of org mode with mairix and gnus, I came
> across the need for Gnus to enter a group that is recreated dynamically
> by mairix -- so Gnus will need to forget everything about the group when
> entering it, and read it afresh.

How about using ephemeral groups?  Here's an example for mbox, I don't
know if something similar can be done with maildir.

--8<---------------cut here---------------start------------->8---
(defvar rs-gnus-debian-bug-mbox-string
  "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%s&mbox=yes")

(defun rs-gnus-read-bug-group (number &optional mbox-url)
  "Browse Debian Bug with NUMBER as ephemeral group."
  (interactive (list
		(read-string "Enter Bug number: "
			     (thing-at-point 'word)
			     nil)))
  (when (stringp number)
    (setq number (string-to-number number)))
  (let ((tmpfile (make-temp-file "rs-gnus-temp-group-")))
    (with-temp-file tmpfile
      (url-insert-file-contents
       (format (or mbox-url rs-gnus-debian-bug-mbox-string) number))
      (write-region (point-min) (point-max) tmpfile)
      (gnus-group-read-ephemeral-group
       "rs-gnus-read-bug"
       `(nndoc ,tmpfile
	       (nndoc-article-type mbox))))
    (delete-file tmpfile)))
--8<---------------cut here---------------end--------------->8---

>    Gnus developers couldn't really help, see:
>     http://article.gmane.org/gmane.emacs.gnus.general/65248

Well, you could give them more than one day before stating the
couldn't help.

Bye, Reiner.
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo---  |  PGP key available  |  http://rsteib.home.pages.de/