From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Charles C. Berry" <ccberry@ucsd.edu>
Subject: Re: code blocks: update cache hash on export
Date: Tue, 18 Oct 2016 09:01:03 -0700
Message-ID: <alpine.OSX.2.20.1610180848030.605@charles-berrys-macbook.local>
References: <1476792042.1576.15.camel@posteo.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII; format=flowed
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:46177)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ccberry@ucsd.edu>) id 1bwWpY-00041O-DS
	for emacs-orgmode@gnu.org; Tue, 18 Oct 2016 12:01:33 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ccberry@ucsd.edu>) id 1bwWpU-0006WR-Ch
	for emacs-orgmode@gnu.org; Tue, 18 Oct 2016 12:01:32 -0400
Received: from iport-acv1-out.ucsd.edu ([132.239.0.176]:3189)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71)
	(envelope-from <ccberry@ucsd.edu>) id 1bwWpU-0006W3-0T
	for emacs-orgmode@gnu.org; Tue, 18 Oct 2016 12:01:28 -0400
In-Reply-To: <1476792042.1576.15.camel@posteo.de>
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"
	<emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
To: "Ulrich J. Herter" <ujh@posteo.de>
Cc: emacs-orgmode@gnu.org

On Tue, 18 Oct 2016, Ulrich J. Herter wrote:

> Hi everybody!
>
> Two questions I'd like to ask the Org-community:
??
> First:
> When I export my document, the source blocks with outdated cache hashes
>     run, but no new hashes are put in the document.

Right. The exporter runs in a buffer copy, so the original is not modified.

>
> I would like to have the hashes updated when the run on export, so next
> time I export the don't need to be evaluated. This would save a lot
> quite some time!
>
> Is there a switch I missed, or any way to get this behaviour?

Run org-babel-execute-buffer (or org-babel-execute-subtree) before you 
export.

>
>
> Second:
> Is there a function to get the hash of a #+CALL:-block? C-c C-v a ()
> doesn't work there.
>

`org-babel-current-result-hash' does this. It is not interactive, so if 
you want to query the value interactively, you need

  M-: (org-babel-current-result-hash)

with point in the CALL line. Or roll it into an interactive function of 
your own.

`org-ctrl-c-ctrl-c' will get the value if point is just before the hash.

HTH,

Chuck