From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bingo UV <right.ho@gmail.com>
Subject: Re: Asynchronous mobileorg push/pull
Date: Sun, 29 Nov 2015 22:42:56 +0530
Message-ID: <20151129224256.371b7e7b@dhcppc15>
References: <87a8q9lxzj.fsf@felesatra.moe>
	<87vb8sss3w.fsf@ntnu.no>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:45346)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <right.ho@gmail.com>) id 1a35XB-00063n-1d
	for emacs-orgmode@gnu.org; Sun, 29 Nov 2015 12:13:09 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <right.ho@gmail.com>) id 1a35X5-0006bR-Vv
	for emacs-orgmode@gnu.org; Sun, 29 Nov 2015 12:13:08 -0500
Received: from mail-pa0-x242.google.com ([2607:f8b0:400e:c03::242]:35476)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <right.ho@gmail.com>) id 1a35X5-0006bN-QH
	for emacs-orgmode@gnu.org; Sun, 29 Nov 2015 12:13:03 -0500
Received: by padhk6 with SMTP id hk6so21997587pad.2
	for <emacs-orgmode@gnu.org>; Sun, 29 Nov 2015 09:13:03 -0800 (PST)
Received: from dhcppc15 ([122.179.49.35]) by smtp.gmail.com with ESMTPSA id
	t26sm45925864pfa.52.2015.11.29.09.13.01 for <emacs-orgmode@gnu.org>
	(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
	Sun, 29 Nov 2015 09:13:02 -0800 (PST)
In-Reply-To: <87vb8sss3w.fsf@ntnu.no>
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: emacs-orgmode@gnu.org

On Mon, 23 Nov 2015 15:33:23 +0100
Sven Bretfeld <sven.bretfeld@gmx.ch> wrote:

> You can just use a cronjob like:
> 
> */10  *  *  *  *  emacs --batch --load ~/.emacs --eval
> "(org-mobile-pull)" --eval "(org-mobile-push)"
> 
> This executes the whole process in the background with another
> instance of emacs running in batch-mode.
> 
> Sven
> 

The problem with this is that the other instance of emacs writes
org files and the main instance of emacs then warns quite rightly about
files on the disk changing outside of that emacs. Isn't there the
danger of losing data with this mechanism? Or am I missing some simple
defense against such data loss?

org-mobile-push could have been a read-only operation on the org
files, but it creates the PROPERTIES drawer if missing. org-mobile-pull
obviously writes into org files. So my fear is that in the worst case
both of these can cause data loss. Does that make sense?

thanks