[ESS] Updating Emacs working directory after issuing an R setwd()
S.J.Eglen at damtp.cam.ac.uk
Thu Jun 4 10:27:47 CEST 2009
Blanchette, Marco <MAB at stowers.org> wrote:
> Dear list,
> Is there a way to reset the emacs working directory of the ESS buffer
> after using setwd() in an R session? Could this be automated following
> a setwd() call?
I had written this a while ago:
(defun ess-change-directory (path)
"Set the current working directory to PATH for both *R* and Emacs."
(interactive "DDirectory to change to: ")
(when (file-exists-p path)
(ess-command (concat "setwd(\"" path "\")\n"))
;; use file-name-as-directory to ensure it has trailing /
(setq default-directory (file-name-as-directory path))))
If you put that in .emacs, and then within an *R* buffer, do M-x
ess-change-directory it will prompt you for a dir -- give a dir and R
and Emacs will be in sync as to what directory you want. Automatically
tracking the directory is possible, but I've never found it necessary so
have not done it.
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