From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rainer M Krug Subject: Re: [babel] Error with source block and variable on export - bug? Date: Fri, 03 Sep 2010 16:48:36 +0200 Message-ID: <4C810AC4.2000304@gmail.com> References: <4C80B94B.702@gmail.com> <8739truerx.fsf@gmail.com> <4C8106FF.3060707@gmail.com> Reply-To: R.M.Krug@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from [140.186.70.92] (port=45020 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OrXZY-0003OE-P3 for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:48:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OrXZN-0006Qu-RW for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:48:56 -0400 Received: from mail-wy0-f169.google.com ([74.125.82.169]:55975) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OrXZN-0006Qk-MN for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:48:45 -0400 Received: by wyb36 with SMTP id 36so2084291wyb.0 for ; Fri, 03 Sep 2010 07:48:44 -0700 (PDT) In-Reply-To: <4C8106FF.3060707@gmail.com> List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: R.M.Krug@gmail.com Cc: emacs-orgmode -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/09/10 16:32, Rainer M Krug wrote: > On 03/09/10 15:40, Eric Schulte wrote: >> Hi Rainer, > >> As part of the export process Org-mode copies the contents of the >> Org-mode file to a temporary buffer in which the business of exportation >> is performed. This temporary buffer is not associated with any file so >> (buffer-file-name) returns nil, which is causing the problem you are >> experiencing. I think the best solution would be to replace the call to >> (buffer-file-name) with the actual name of the file, e.g. > >> #+begin_src sh :var file=(vc-working-revision "~/src/babel-dev/scraps.org") :exports results >> echo $file Revision >> #+end_src > > Hi Eric > > thanks a lot for the clarification - that makes perfect sense. I will do > as suggested. Thanks - it is working now. But it is a little bit awkward to have the file name (incl. path) somewhere in the document - can create some problems when renaming the file or saving it somewhere else). Is it possible to define it as a kind of variable (property?) in the headers of the file and reference it in the org file later? Rainer > > Cheers, > > Rainer > > >> Cheers -- Eric > >> Rainer M Krug writes: > >>> Hi >>> >>> when I insert the following source block >>> >>> #+begin_src sh :exports results :var >>> ver=(vc-working-revision(buffer-file-name)) >>> echo Revision $ver >>> #+end_src >>> >>> into a svn (probably other VCs as well) registered file and execute it >>> via C-c C-c, it gives me the revision: >>> >>> #+begin_src sh :exports results :var >>> ver=(vc-working-revision(buffer-file-name)) >>> echo Revision $ver >>> #+end_src >>> >>> #+results: >>> : Revision 191 >>> >>> So when exporting, I would expect that it also prints "Revision 191", >>> but I get an error: >>> >>> vc-file-getprop: Wrong type argument: stringp, nil >>> >>> Tangling the file with :var ver=(vc-working-revision(buffer-file-name)) >>> as a header argument also works fine. >>> >>> As the evaluation works, I assume that is a bug somewhere? >>> >>> Cheers, >>> >>> Rainer > > - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Natural Sciences Building Office Suite 2039 Stellenbosch University Main Campus, Merriman Avenue Stellenbosch South Africa Tel: +33 - (0)9 53 10 27 44 Cell: +27 - (0)8 39 47 90 42 Fax (SA): +27 - (0)8 65 16 27 82 Fax (D) : +49 - (0)3 21 21 25 22 44 Fax (FR): +33 - (0)9 58 10 27 44 email: Rainer@krugs.de Skype: RMkrug -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyBCsQACgkQoYgNqgF2egrpvwCfbhfLgoKV7aUVADvCoUmzsPmf 2M0An3X3kNZmUXFvcabq2z44SJeDWNks =OUuF -----END PGP SIGNATURE-----