Re: Can we increase the print width/column in daemon backtraces

[Robert Vollmert <rob@vllmrt.net>]

On 15. Jul 2019, at 20:38, Robert Vollmert <rob@vllmrt.net> wrote:
> 
>> On 15. Jul 2019, at 17:40, Ricardo Wurmus <rekado@elephly.net> wrote:
>> 
>> P <pronaip@protonmail.com> writes:
>> 
>>>> Hi Pierre,
>>>> 
>>>>> Quite often when packaging and iterating, the daemon produces backtraces
>>>>> on errors, which could be very useful to understand what's wrong, but
>>>>> unfortunately the output is truncated to some 80-ish column.
>>>> 
>>>> Set the COLUMNS environment variable to some large value.
>>>> 
>>> Can't it just not truncate them? This is a very brutish way of
>>> condensing log output and breaks some workflows.
>> 
>> I also don’t like it, but that’s what Guile does.  (It’s not Guix that
>> truncates the output.)
> 
> It’s open source, though, isn’t it? Let’s fix it!

I sent a patch against guile: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36677

If you’d like to try it in guix, here’s a patch to apply the patch to guile-next,
though I guess to make it apply to the build daemon you’d have to apply it to
gnu/packages/guile.scm:guile/fixed.

Happy to submit a patch to do that.