Setting environment variables for nix service

Setting environment variables for nix service

[dario]

Hello,


I am a bit confused about how to correctly set up the nix service.
Following the steps in
http://guix.gnu.org/manual/en/guix.html#index-Nix
, the last step is to run

source /run/current-system/profile/etc/profile.d/nix.sh

which takes care about setting the environment variables
correctly. I am
trying to run this command should be run automatically at login.
Two
questions:

1. What is the proper way to do this? I am using gdm and exwm, and
adding the line to any of ~/.profile, ~/.xprofile, ~/.zprofile, or
~/.bash_profile does not seem to have any effect in exwm.

2. Couldn't the nix service take care of this automatically? I'd
be
happy to contribute a corresponding path once I have the answer to
my
first question.


Best regards,

Dario

Re: Setting environment variables for nix service

[Oleg Pykhalov]

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Hi,

dario <dario.klingenberg@web.de> writes:

> Two
> questions:
>
> 1. What is the proper way to do this? I am using gdm and exwm, and
> adding the line to any of ~/.profile, ~/.xprofile, ~/.zprofile, or
> ~/.bash_profile does not seem to have any effect in exwm.

Probably GDM doesn't read those files by design.

Could you try ‘~/.bashrc’, please?

> 2. Couldn't the nix service take care of this automatically? I'd be
> happy to contribute a corresponding path once I have the answer to my
> first question.

Probably yes, and the patch is welcome!  ;-) Just one consideration - I
think it should be optional, in case the automation will brake because
of Nix update or highly customized system.

Regards,
Oleg.

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Re: Setting environment variables for nix service

[dario]

Hi,


thanks for your input!

> Could you try ‘~/.bashrc’, please?

In that case, emacs still doesn't recognize the new environment
variables, but of course, any terminals I start withing exwm do. 
Still,
this doesn't really solve the problem. Anyway, I am currently 
working
around the issue by setting the variables manually in my init.el 
using
setenv, but I would still be interested in learning the proper way 
to
set environment variables in a gdm+exwm-setting.

By the way, ~/.bash_profile does get read, and I can e.g. 
autostart
programs by putting the respective commands in ~/.bash_profile. 
However,
environment variables set in ~/.bash_profile are not recognized by 
emacs.

Regarding my second question, it seems that the nix service is 
already
setting some of the nix-specific environment variables, but 
doesn't
change general ones such as $PATH. So maybe the feature I 
suggested is
already implemented, but they took care not change $PATH by 
default
because of the reason you mentioned.


Cheers,

Dario


Oleg Pykhalov <go.wigust@gmail.com> writes:

> Hi,
>
> dario <dario.klingenberg@web.de> writes:
>
>> Two
>> questions:
>>
>> 1. What is the proper way to do this? I am using gdm and exwm, 
>> and
>> adding the line to any of ~/.profile, ~/.xprofile, ~/.zprofile, 
>> or
>> ~/.bash_profile does not seem to have any effect in exwm.
>
> Probably GDM doesn't read those files by design.
>
> Could you try ‘~/.bashrc’, please?
>
>> 2. Couldn't the nix service take care of this automatically? 
>> I'd be
>> happy to contribute a corresponding path once I have the answer 
>> to my
>> first question.
>
> Probably yes, and the patch is welcome!  ;-) Just one 
> consideration - I
> think it should be optional, in case the automation will brake 
> because
> of Nix update or highly customized system.
>
> Regards,
> Oleg.

Re: Setting environment variables for nix service [SOLVED]

[dario]

Hi,


apparently, the issue was related to emacs (I am using doom emacs)
setting environment variables after startup. Removing
~/.emacs.d/.local/env solved the issue, so this is not really 
related to
guix - sorry.


Best

Dario


dario <dario.klingenberg@web.de> writes:

> Hi,
>
>
> thanks for your input!
>
>> Could you try ‘~/.bashrc’, please?
>
> In that case, emacs still doesn't recognize the new environment
> variables, but of course, any terminals I start withing exwm do. 
> Still,
> this doesn't really solve the problem. Anyway, I am currently 
> working
> around the issue by setting the variables manually in my init.el 
> using
> setenv, but I would still be interested in learning the proper 
> way to
> set environment variables in a gdm+exwm-setting.
>
> By the way, ~/.bash_profile does get read, and I can e.g. 
> autostart
> programs by putting the respective commands in ~/.bash_profile. 
> However,
> environment variables set in ~/.bash_profile are not recognized 
> by emacs.
>
> Regarding my second question, it seems that the nix service is 
> already
> setting some of the nix-specific environment variables, but 
> doesn't
> change general ones such as $PATH. So maybe the feature I 
> suggested is
> already implemented, but they took care not change $PATH by 
> default
> because of the reason you mentioned.
>
>
> Cheers,
>
> Dario
>
>
> Oleg Pykhalov <go.wigust@gmail.com> writes:
>
>> Hi,
>>
>> dario <dario.klingenberg@web.de> writes:
>>
>>> Two
>>> questions:
>>>
>>> 1. What is the proper way to do this? I am using gdm and exwm, 
>>> and
>>> adding the line to any of ~/.profile, ~/.xprofile, 
>>> ~/.zprofile, or
>>> ~/.bash_profile does not seem to have any effect in exwm.
>>
>> Probably GDM doesn't read those files by design.
>>
>> Could you try ‘~/.bashrc’, please?
>>
>>> 2. Couldn't the nix service take care of this automatically? 
>>> I'd be
>>> happy to contribute a corresponding path once I have the 
>>> answer to my
>>> first question.
>>
>> Probably yes, and the patch is welcome!  ;-) Just one 
>> consideration - I
>> think it should be optional, in case the automation will brake 
>> because
>> of Nix update or highly customized system.
>>
>> Regards,
>> Oleg.