From: Jan Pobrislo Date: Wed, 3 Feb 2016 14:32:50 +0000 (+0100) Subject: Re: [PATCH/RFC 0/3] Maildir custom flags and notmuch tags X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=f6310761d1c23e509b090cbaaedc462c8aeef367;p=notmuch-archives.git Re: [PATCH/RFC 0/3] Maildir custom flags and notmuch tags --- diff --git a/c6/ddfdb5c92fce7e380380d8ffb40ed2b8d514c7 b/c6/ddfdb5c92fce7e380380d8ffb40ed2b8d514c7 new file mode 100644 index 000000000..5385c6f36 --- /dev/null +++ b/c6/ddfdb5c92fce7e380380d8ffb40ed2b8d514c7 @@ -0,0 +1,103 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by arlo.cworth.org (Postfix) with ESMTP id 4D7886DE0C1E + for ; Wed, 3 Feb 2016 06:33:04 -0800 (PST) +X-Virus-Scanned: Debian amavisd-new at cworth.org +X-Spam-Flag: NO +X-Spam-Score: 0.646 +X-Spam-Level: +X-Spam-Status: No, score=0.646 tagged_above=-999 required=5 tests=[AWL=-0.638, + RCVD_IN_RP_RNBL=1.284] autolearn=disabled +Received: from arlo.cworth.org ([127.0.0.1]) + by localhost (arlo.cworth.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id Mq0-xyB3XvFM for ; + Wed, 3 Feb 2016 06:32:57 -0800 (PST) +Received: from ccx.webprojekty.cz (156.200.broadband11.iol.cz + [90.178.200.156]) by arlo.cworth.org (Postfix) with ESMTP id AB8F46DE0B64 for + ; Wed, 3 Feb 2016 06:32:57 -0800 (PST) +Received: from dorje.v103.te2000 (unknown [82.142.125.46]) + (Authenticated sender: ccx@webprojekty.cz) + by ccx.webprojekty.cz (Postfix) with ESMTPSA id D80771176; + Wed, 3 Feb 2016 14:38:19 +0100 (CET) +Date: Wed, 3 Feb 2016 15:32:50 +0100 +From: Jan Pobrislo +To: David Bremner , notmuch@notmuchmail.org +Subject: Re: [PATCH/RFC 0/3] Maildir custom flags and notmuch tags +Message-ID: <20160203153250.56aa0b2b@dorje.v103.te2000> +In-Reply-To: <87d1se9f2b.fsf@zancas.localnet> +References: <1448504191-30974-1-git-send-email-igor.contato@gmail.com> + <87mvsd7cxr.fsf@zancas.localnet> + <20160202175220.12f8a712@dorje.v103.te2000> + <87d1se9f2b.fsf@zancas.localnet> +X-Mailer: Claws Mail 3.13.0 (GTK+ 2.24.28; x86_64-pc-linux-gnu) +MIME-Version: 1.0 +Content-Type: text/plain; charset=US-ASCII +Content-Transfer-Encoding: 7bit +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.20 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Wed, 03 Feb 2016 14:33:04 -0000 + +On Wed, 03 Feb 2016 08:03:08 -0400 +David Bremner wrote: + +> I see, you're talking about this "dovecot-keywords" file I guess +> +> http://wiki2.dovecot.org/MailboxFormat/Maildir + +Indeed. + +> Some questions that spring to mind: +> +> - This is clearly dovecot specific; I wonder what fraction of +> our users would benefit. I suppose that's a question about any +> scheme involving maildir-flags a-z; at least those can be +> synchronized ootb by several tools. + +Every such maildir extension out there that I know of was invented for +some specific application. Out of the two documented formats there are, +the dovecot-keywords file is: + +1) more limited (26 tags maximum) +2) simpler to implement, especially wrt. detecting changes +3) usable out of the box with some tools, as you noted + +Of course, one could go invent some another format, but in the end it'd +be application-specific too, and I don't see it succeeding without help +of mail-synchronizer authors. + +> - Notmuch new currently only indexes one copy of a message, so two +> files in different maildirs (i.e. a list and inbox) would be pretty +> much a crapshoot which tags get applied. We intend to change this +> behaviour eventually, but no one is working on it currently. +> +> - even if/when this behaviour changes, there is still the problem of +> reconciling different tag mappings from several maildirs. + +This is nothing new though, current synchronize_tags has the very same +problem. I'm not sure how much of a problem it is in practice, but it +probably should be addressed in some way. + +Here possibly the best course of action would be to leave it open-ended +and provide user-definable conflict resolution hook, as I can't really +think of "one size fits all" solution. + +> On the other hand, maybe not much change to the notmuch core would be +> needed to at least experiment with this, using e.g. hooks to +> notmuch-insert and notmuch-new. + +I was pondering this before and would find it rather neat, but it is +bit more complicated than it might first seem. The hook needs to be +able to add arbitrary files to be watched for changes and deduce from +that which files need their tags re-read.