[ESS] How to avoid search for versions of R

[Vincent Goulet]

Le 2012-04-20 à 11:05, Martin Maechler a écrit :

> On Friday, April 20, 2012, Heinz Tuechler wrote:
> 
>> Dear Vitalie,
>> 
>> thank you for your response. I cannot say for sure that it is slow, but I
>> changed from emacs 21.3 to emacs 23.3 and at the same time from ess 5.3.3
>> to ess 12.04.
>> Together, it seems to me much slower than before.
>> 
> 
> (that's interesting .. in any case)
> 
> 
>> In ess-r-d.el I read
>> 
>> Set this variable to nil to disable searching for other versions of R.
>> If you set this variable, you need to restart Emacs (and set this variable
>> before ess-site is loaded) for it to take effect.")
>> 
>> I thought that this should prevent the search, but don't know, if I should
>> set ess-r-versions or ess-uniq-list or some other variable to nil. What I
>> tried in .emacs did not have any effect.
>> 
> 
> (setq ess-r-versions nil)  ;;  *BEFORE* ess-site is loaded (!)
> 
> has the desired effect for me.
> Are you sure that you set this *before* loading of ess-site?
> 
> As you tell us you are using Windows, are  you using  Vincent Goulet's
> Emacs+ESS+... combination?
> It could be the problem, because I think ess-site is already loaded  by the
> "global" site-start  Emacs startup configuration.
> 
> Can anyone confirm?

I confirm that ess-site is loaded from default.el, therefore before any site or user configuration file is loaded. Normally, this should be a feature more than a bug (just like R versions search is a nice feature).

On Windows, however, it is simple to modify the default.el file: it is located in the site-lisp sub-folder of the Emacs installation folder. Caveat: the file will be overwritten/deleted with Emacs updates. [Not so much an issue for Heinz, it appears, since he doesn't update too often. :-) ]

Hope this helps,

v.

> 
> Martin
> 
> 
>> 
>> You see that I have very little knowledge about emacs lisp and I would
>> prefer, not to need more of it. So I will try your suggestion and report
>> the result.
>> 
>> best regards,
>> 
>> Heinz
>> 
>> 
>> 
>> At 20.04.2012 10:49 +0200, Vitalie Spinu wrote:
>> 
>> Hi Heinz,
>>> 
>>> But you didn't tell us what is your problem. Is it slow?
>>> Inferior-R-program-name should work anyhow.
>>> 
>>> I don't see a switch-off for this functionality, but you can look for
>>> ess-site.el and comment the code which builds
>>> ess-rterm-version-paths. It starts with
>>> 
>>> (ess-message "[ess-site:] before creating ess-versions-* ...")
>>> 
>>> Vitalie.
>>> 
>>>>>>> Heinz Tuechler <tuechler at gmx.at>
>>>>>>> on Fri, 20 Apr 2012 09:18:53 +0100 wrote:
>>> 
>>>> Dear All,
>>> 
>>>> after admittedly erratic search for an answer, may I finally ask, how
>>> to avoid
>>>> the search for R versions at start up of ESS 12.04.
>>> 
>>>> Until now I used ess 5.3.3 and with the line
>>>> (setq inferior-R-program-name "d:/rw/bin/r.exe") in my .emacs all
>>> worked well.
>>> 
>>>> Can I use ESS 12.04 without the search for R versions?
>>> 
>>>> best regards,
>>> 
>>>> Heinz
>>> 
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>>> 
>> 
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