GNU bug report logs - #57963
[PATCH 0/1] Support user's fontconfig.

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From: Taiju HIGASHI <higashi <at> taiju.info>
To: Declan Tsien <declantsien <at> riseup.net>
Cc: 57963 <at> debbugs.gnu.org
Subject: [bug#57963] [PATCH v5 2/2] home: services: Support user's fontconfig configuration.
Date: Sun, 23 Oct 2022 15:32:45 +0900

Declan Tsien <declantsien <at> riseup.net> writes:

> Taiju HIGASHI <higashi <at> taiju.info> writes:
>
>> See: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=57963#71
>>
>> We have to come up with a merge strategy if we allow to extend, how
>> would you like to extend it?
>
> OK, got it. Sounds reasonable.
> I should have followed the conversation thoroughly,  Sorry about that.
>
>>
>> Perhaps I am less experienced in Guix customization than you are, and
>
> Nah, I haven't contributed much to Guix community yet. Only poking around with my
> guix-config ha.
>
>> don't understand the use cases that cannot be achieved with
>> modify-services.
>
> I'd prefer =simple-service= over =modify-services= when possible.
> For example, in this case. Let's say I want to add an item to
> =font-directories=, I should not forget to include =guix-home-font-dir=
> too, like this:
>
> #+begin_src scheme
> (home-fontconfig-configuration
>  (font-directories
>   (string-list (list guix-home-font-dir "another-dir")))
> #+end_src
>
>
> But with service extension I can just write:
>
> #+begin_src scheme
> (home-fontconfig-extension
>  (font-directories
>   (string-list (list "another-dir")))
> #+end_src
>
> =guix-home-font-dir= doesn't need to show up in my configuration.

I see.  We may make the interface even more unsuitable for extensions
since we plan to allow the user to choose whether to configure with the
fontconfig-configuration or a file-like object.

I am taking a very long time to finalize the interface on this issue,
should I still think about it more carefully...?

Thanks,
-- 
Taiju

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