Re: How to set global environment variables in Guix System

[Tobias Geerinckx-Rice <me@tobias.gr>]

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Peter!

Lo Peter 写道：
> ~/.pam_environment

I don't think we configure PAM to look at this by default.  I'm 
not sure why GDM doesn't load ~/.profile (it may be right not to 
-- most of these files are abused).  I'd never heard of 
~/.xprofile.

> Any help is greatly appreciated. Also, I think a way to let user
> customize /etc/environment through the system config will be 
> useful,
> but I do not find a way to do so.

That already exists, but it seems to be wholly undocumented(?). 
Boo.

Also, IIRC blindly plonking

  (session-environment-service-type '(("FOO" . "bar")))

into your services would only get you the ‘duplicate service’ 
error.  It's meant to be extended.

First, define this in your system.scm (above your 
operating-system):

  (define environment-service-type
    (service-type (name 'environment)
                  (default-value '())
                  (extensions
                   (list (service-extension
                          session-environment-service-type
                          identity)))))

Then use it in your services field:

  (service environment-service-type
           '(("GTK_IM_MODULE" . "ibus")
             ("QT_IM_MODULE" . "ibus")
             ...))

I hope that helps,

T G-R

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