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Re: overriding essential-services
From: |
Ricardo Wurmus |
Subject: |
Re: overriding essential-services |
Date: |
Tue, 15 Aug 2017 22:05:38 +0200 |
User-agent: |
mu4e 0.9.18; emacs 25.2.1 |
Alex Kost <address@hidden> writes:
> Ricardo Wurmus (2017-08-11 22:26 +0200) wrote:
>
>> Hi Guix,
>>
>> I want to make sure that /etc/environment includes GUILE_LOAD_PATH and
>> GUILE_LOAD_COMPILED_PATH, because that’s needed for offloading.
>> “/etc/environment” is created by the “session-environment-service”
>> service, which is part of “essential-services”. It is not part of
>> %base-services, so I cannot catch it with “modify-services” and extend
>> it.
>>
>> How would I go about extending it?
>
> There is probably no convenient way now.
>
>> For now I’ll use ~/.ssh/environment and “PermitUserEnvironment=yes”, but
>> I think it would anyway be good to have a mechanism to easily change the
>> contents of /etc/environment.
>
> IFIUC the intention of <https://bugs.gnu.org/27155> is to provide the
> extension facility for any service.
I don’t know… I never quite warmed up to the implementation. It looks
much too powerful for something as simple as e.g. overwriting
/etc/environment.
Maybe “session-environment-service-type” is an outlier here anyway. I
see the utility of 27155 for the other services, but using it for
“session-environment-service-type” really seems wrong. Maybe we can
move it to %base-services?
And maybe we could avoid essential-services altogether and make these
services explicit, so that they can be modified with “modify-services”.
Right now they are special in that they are always added to whatever
services the user defines.
--
Ricardo
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