Re: hydra.gnu.org off-line for maintenance

[<znavko@tutanota.com>]

[-- Attachment #1: Type: text/plain, Size: 2269 bytes --]

Thank you, Ricardo! Your answer is very important.
This command is working now: 'guix system reconfigure /etc/config.scm --substitute-urls=https://mirror.guixsd.org <https://mirror.guixsd.org>', nevertheless I have 504 errors, but some packages are compiling now.
After that I'll try your advise. It's a pity I have not enough time for GuixSD and Guile, but this is very best I've tried from opensource. Here are very  responsive people. When I found how to use IRC through tor or vpn I'll join. 
But may be tox group chat?

31. Oct 2018 20:04 by rekado@elephly.net <mailto:rekado@elephly.net>:


> Hi,
>
> znavko@tutanota.com <mailto:znavko@tutanota.com>>  writes:
>
>> (define %my-services
>>  (modify-services %base-services
>>  (guix-service-type config =>
>>  (guix-configuration
>>  (inherit config)
>>  (substitute-urls (list ">> https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org>>>  <>> https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org>>> >";
>>  ">> https://hydra.gnu.org <https://hydra.gnu.org>>>  <>> https://hydra.gnu.org <https://hydra.gnu.org>>> >";
>>  ">> https://berlin.guixsd.org <https://berlin.guixsd.org>>>  <>> https://berlin.guixsd.org <https://berlin.guixsd.org>>> >";
>>  ))))))
>
> Okay, %my-services is a list of services.  Let’s remember this.
>
>>  (services (cons* ;;(tor-service)
>>  (xfce-desktop-service)
>>  (bluetooth-service)
>>  (modify-services %desktop-services …)
>>  %my-services
>>  ));;end of services
>
> Here you’re using cons* on four arguments: a service, another service, a
> list of services, and yet another list of services.
>
> This is why you get the error, because you’re creating a nested list of
> services and lists of services.  When you pay attention to the types you
> could come up with an alternative, such as this:
>
> (services (cons* (xfce-desktop-service)
>                  (bluetooth-service)
>                  (append (modify-services %desktop-services …)
>                          %my-services)))
>
> Or you could change %my-services to work on %desktop-services and thus
> remove the second “modify-services”.
>
> --
> Ricardo
>
> PS: closing parentheses get lonely when they are on a line all by
> themselves ;)

[-- Attachment #2: Type: text/html, Size: 3168 bytes --]