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[O] Actual value of variable in tangled source file instead of variable
From: |
Rainer M Krug |
Subject: |
[O] Actual value of variable in tangled source file instead of variable |
Date: |
Mon, 20 Jun 2011 13:21:09 +0200 |
Hi
I am using R for package writing in R, and the org file is under svn version control.
I would like to keep the version of the R package, as stated in the DESCRIPTION file, in sync with the svn revision, so I thought about using variables for that.
But my approach below obviosly does not work, as in the tangled DESCRIPTION file, it says Version: 0.$VER
Is it possible to have, during tangling, the actual value in the source file instead of the variable?
Thanks,
Rainer
* The DESCRIPTION File
#+begin_src sh :tangle ./asm/DESCRIPTION :shebang :padline no :var VER=(vc-working-revision (buffer-file-name))
Package: asm
Type: Package
Title: Alien spread management simulation model
Version: 0.$VER
Date: 2011-06-08
Author: Rainer M. Krug
Description: For research
License: GPL-3
LazyLoad: yes
Depends: simecol, sp, maptools, spgrass6, RSQLite, Rcpp (>= 0.9.4)
LinkingTo: Rcpp
#+end_src
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)
Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa
Tel : +33 - (0)9 53 10 27 44
Cell: +33 - (0)6 85 62 59 98
Fax (F): +33 - (0)9 58 10 27 44
Fax (D): +49 - (0)3 21 21 25 22 44
email: address@hidden
Skype: RMkrug
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