Re: How to remove extension 'network-manager-applet' from 'service profile-service-type'

[jbranso]

March 7, 2021 3:56 AM, znavko@disroot.org wrote:

> Hello, Joshua!
> No, sorry. network-manager-applet is an extension of
> profile-service-type
> that is included in xfce-service-type in desctop.scm.
> 
> Though I remove network-manager from %desktop-services
> (I already done it in attached config)
> but it pervades into my system
> as far as network-manager-applet is included 
> in profile-service-type (that s part of xfce-service-type) 
> and network-manager-applet requires network-manager.
> 
> My trouble is that there are two places where 
> 'profile-service-type' is affected:
> 
> 1. in xfce-service-type definition it is just only including
> 2. in %desktop-services it is extended with network-manager-applet
> 
> I think I need somehow to remove
> network-manager-applet
> from profile-service-type
> 
> How to do it?
> 
> Here it is 'xfce-desktop-service-type' definition:
> https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/desktop.scm#n980
> 
> Here netwok-manager-applet is included into profile-service-type:
> https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/desktop.scm#n1260

Oh wow!  I didn't actually know that was a thing!  I did just find this in the
manual:

   The ‘modify-services’ form provides a handy way to change the
parameters of some of the services of a list such as ‘%base-services’
(*note ‘%base-services’: Base Services.).  It evaluates to a list of
services.  Of course, you could always use standard list combinators
such as ‘map’ and ‘fold’ to do that (*note List Library:
(guile)SRFI-1.); ‘modify-services’ simply provides a more concise form
for this common pattern.

So it looks like you can use 'map' and 'fold' on %desktop-services to 
manually remove that nm-applet...I'm not entirely certain how to do it
though...

Here's how you can play with that:

$ guile
guile command line $  ,use(gnu services desktop)
guile command line $ %desktop-services  ;; this will list the default 
desktop-services
guile command line $ (map ;; or fold
                       ;; some code
                       %desktop-services)

> 
> March 6, 2021 5:01 PM, "Joshua Branson" <jbranso@dismail.de> wrote:
> 
>> znavko--- via <help-guix@gnu.org> writes:
>> 
>>> Hello! I use 'xfce-desktop-service-type' in my config.scm
>>> and xfce service is using 'profile-service-type'.
>>> Everything was ok while this line not appeared in services/desctop.scm:
>>> 
>>> 1260:
>>> (simple-service 'network-manager-applet
>>> profile-service-type
>>> (list network-manager-applet))
>>> 
>>> How can I remove back 'network-manager-applet' extension from 
>>> profile-service-type
>>> in my config (in attach)?
>> 
>> Something like this might work:
>> 
>> #+BEGIN_SRC scheme
>> (use-service-modules
>> networking)
>> 
>> (define %my-desktop-services
>> (remove (lambda (service)
>> (member (service-kind service)
>> (list
>> network-manager-service-type
>> )))
>> %desktop-services))
>> 
>> (operating-system
>> (services
>> (cons* %my-desktop-services)))
>> #+END_SRC
>> 
>>> PS: I dislike networkmanager for it is buggy and slow.
>> 
>> --
>> Joshua Branson (joshuaBPMan in #guix)
>> Sent from Emacs and Gnus
>> https://gnucode.me
>> https://video.hardlimit.com/accounts/joshua_branson/video-channels
>> https://propernaming.org
>> "You can have whatever you want, as long as you help
>> enough other people get what they want." - Zig Ziglar