Re: guix shell readline issue with R

[Edouard Klein <edou@rdklein.fr>]

Hy Kyle,


Here is a script that restores the ctrl-C behaviour of R, whithin a guix
shell.

I must admit I don't exactly understand the finer points of why it
works, but just trapping SIGINT in the script is enough for R to behave.

My intuition is SIGINT is sent to the whole group. The script interrupts
R. If we trap it in the script, it does nothing. R gets it as well and
acts on it like you expect.

Let me know if the problem still persists.

Here is the script:

#!/usr/bin/env -S guix shell r -- bash
set -m
R&
function ctrlc(){
    # Doing nothing
    true
}
trap ctrlc SIGINT
fg

Cheers,

Edouard.


Kyle Andrews <kyle@posteo.net> writes:

> Edouard Klein <edou@rdklein.fr> writes:
>
>> Hi Kyle,
>>
>>
>> Running
>> guix shell r
>>
>> and then
>> R
>>
>> will get you the C-c handling you want.
>
> Hi Edouard,
>
> I wrote another reply, but forgot to comment on this because I feel like I am missing something here.
>
> It would be really convenient if I could just write a shell script like that.
> For me the first command hijacks the execution so that the script cannot invoke
> R. Is there a workaround avoiding -- which would let me automate that with a
> script?
>
> Cheers,
> Kyle