From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/46655
Path: main.gmane.org!not-for-mail
From: prj@po.cwru.edu (Paul Jarc)
Newsgroups: gmane.emacs.gnus.general
Subject: nnmaildir now has persistent article numbers
Date: Mon, 23 Sep 2002 14:46:42 -0400
Organization: What did you have in mind?  A short, blunt, human pyramid?
Sender: owner-ding@hpc.uh.edu
Message-ID: <m37khco85z.fsf@multivac.cwru.edu>
NNTP-Posting-Host: localhost.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: main.gmane.org 1032806902 20452 127.0.0.1 (23 Sep 2002 18:48:22 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Mon, 23 Sep 2002 18:48:22 +0000 (UTC)
Cc: r_letot@yahoo.com (=?iso-8859-1?q?R=E9mi?= Letot)
Return-path: <owner-ding@hpc.uh.edu>
Original-Received: from malifon.math.uh.edu ([129.7.128.13])
	by main.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 17tYFp-0005Jk-00
	for <ding-account@gmane.org>; Mon, 23 Sep 2002 20:48:21 +0200
Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists)
	by malifon.math.uh.edu with esmtp (Exim 3.20 #1)
	id 17tYEZ-0000Yv-00; Mon, 23 Sep 2002 13:47:03 -0500
Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Mon, 23 Sep 2002 13:47:41 -0500 (CDT)
Original-Received: from sclp3.sclp.com (qmailr@sclp3.sclp.com [209.196.61.66])
	by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id NAA08901
	for <ding@hpc.uh.edu>; Mon, 23 Sep 2002 13:47:31 -0500 (CDT)
Original-Received: (qmail 802 invoked by alias); 23 Sep 2002 18:46:45 -0000
Original-Received: (qmail 797 invoked from network); 23 Sep 2002 18:46:45 -0000
Original-Received: from multivac.student.cwru.edu (HELO multivac.cwru.edu) (@129.22.96.25)
  by gnus.org with SMTP; 23 Sep 2002 18:46:45 -0000
Original-Received: (qmail 21280 invoked by uid 500); 23 Sep 2002 18:47:05 -0000
Original-To: ding@gnus.org
Mail-Followup-To: ding@gnus.org
Mail-Copies-To: nobody
Original-Lines: 20
User-Agent: Gnus/5.090008 (Oort Gnus v0.08) Emacs/21.2 (i686-pc-linux-gnu)
Precedence: list
X-Majordomo: 1.94.jlt7
Xref: main.gmane.org gmane.emacs.gnus.general:46655
X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:46655

And it's (somewhat) concurrency-friendly, too: you can run two Gnusae
running nnmaildir-request-scan on the same maildir at the same time,
and they won't assign the same article number to two different
messages.  In the spirit of maildir, this is done without needing file
locks.  (However, it could happen that a single message gets two
numbers assigned to it.  Only one number will be stored in the
maildir, but the two Gnusae will disagree for as long as they re both
running.  So don't do that after all.)

Article numbers are stored in .nnmaildir/nov/*.  So caching and
agentizing should work now.  In the past, you could remove the
.nnmaildir/nov/... file to force regeneration of NOV data (although it
should always happen automatically when needed).  Beware that this
will now also cause the message to get a new article number - unless
you do it while Gnus is running and do M-g on the group afterwards, in
which case the old number will be remembered and stored back in the
new NOV file.


paul