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 16:32:31 +0200 Message-ID: <4C8106FF.3060707@gmail.com> References: <4C80B94B.702@gmail.com> <8739truerx.fsf@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=60989 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OrXJu-0006oF-4s for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:32:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OrXJn-0002Uh-QO for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:32:43 -0400 Received: from mail-ww0-f49.google.com ([74.125.82.49]:61000) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OrXJn-0002UW-MA for emacs-orgmode@gnu.org; Fri, 03 Sep 2010 10:32:39 -0400 Received: by wwb24 with SMTP id 24so2281769wwb.30 for ; Fri, 03 Sep 2010 07:32:39 -0700 (PDT) In-Reply-To: <8739truerx.fsf@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: Eric Schulte Cc: emacs-orgmode -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 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. 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/ iEYEARECAAYFAkyBBv8ACgkQoYgNqgF2egpZegCghnia5yRBa/u2BBcXOXnQRhbL fD8AnAzLJ86WhpGAxWXBjmG+pNWNOyC7 =BayG -----END PGP SIGNATURE-----