From 28312400dbe2d0f2a7f696837a42b9273c11648c Mon Sep 17 00:00:00 2001 From: David Mazieres Date: Wed, 22 Jul 2015 17:16:05 +1700 Subject: [PATCH] Re: notmuch-lazysync -- synchronizing tags using dropbox --- 1c/cebe1d4c6735f74726053af71e2e2ed99d5db9 | 79 +++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 1c/cebe1d4c6735f74726053af71e2e2ed99d5db9 diff --git a/1c/cebe1d4c6735f74726053af71e2e2ed99d5db9 b/1c/cebe1d4c6735f74726053af71e2e2ed99d5db9 new file mode 100644 index 000000000..8f211191b --- /dev/null +++ b/1c/cebe1d4c6735f74726053af71e2e2ed99d5db9 @@ -0,0 +1,79 @@ +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 21B066DE0AD1 + for ; Tue, 21 Jul 2015 17:41:46 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at cworth.org +X-Spam-Flag: NO +X-Spam-Score: -2.067 +X-Spam-Level: +X-Spam-Status: No, score=-2.067 tagged_above=-999 required=5 tests=[AWL=0.784, + RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.55, SPF_PASS=-0.001] + 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 XpgmEdX6ooXQ for ; + Tue, 21 Jul 2015 17:41:43 -0700 (PDT) +X-Greylist: delayed 1534 seconds by postgrey-1.35 at arlo; + Tue, 21 Jul 2015 17:41:43 PDT +Received: from market.scs.stanford.edu (market.scs.stanford.edu [171.66.3.10]) + by arlo.cworth.org (Postfix) with ESMTPS id 7928E6DE0A87 + for ; Tue, 21 Jul 2015 17:41:43 -0700 (PDT) +Received: from market.scs.stanford.edu (localhost.scs.stanford.edu + [127.0.0.1]) by market.scs.stanford.edu (8.14.7/8.14.7) with ESMTP id + t6M0G7id010666; Tue, 21 Jul 2015 17:16:07 -0700 (PDT) +Received: (from dm@localhost) + by market.scs.stanford.edu (8.14.7/8.14.7/Submit) id t6M0G6Fj030472; + Tue, 21 Jul 2015 17:16:06 -0700 (PDT) +X-Authentication-Warning: market.scs.stanford.edu: dm set sender to + return-e6de6hhfxhg7pvcfnevedheczw@ta.scs.stanford.edu using -f +From: David Mazieres +To: Daniel Schoepe , notmuch@notmuchmail.org +Subject: Re: notmuch-lazysync -- synchronizing tags using dropbox +In-Reply-To: <87a8upjqts.fsf@schoepe.localhost> +References: <87a8upjqts.fsf@schoepe.localhost> +Reply-To: David Mazieres expires 2015-10-19 PDT + +Date: Tue, 21 Jul 2015 17:16:05 -0700 +Message-ID: <871tg1yrlm.fsf@ta.scs.stanford.edu> +MIME-Version: 1.0 +Content-Type: text/plain +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.18 +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, 22 Jul 2015 00:41:46 -0000 + +Daniel Schoepe writes: + +> The way tag changes are logged is a bit of a hack, but it could be +> improved in the future by adding a post-tag hook to notmuch. + +One thing to look into, if you are thinking of a better logging +mechanism, is that Xapian itself has a change logging mechanism for +replicating databases (http://xapian.org/docs/replication.html). + +I do think it would be cleaner to do this in a way that is integrated +with notmuch, but I think the best way to do this is to integrate a +"modtime" value into the Xapian database. Having a modtime for each +record would not only allow incremental transfers (just record the +highest timestamp sent to each replica), it would also solve this +terrible problem that in emacs you can end up tagging messages you don't +see (because you apply a tag to the query result, when new mail has come +in--which would be solved by tagging only through the higest modtime +actually displayed). + +When you have one mechanism (modtime) that solves multiple problems, it +is likely the right thing to use... + +David -- 2.26.2