Re: Garbage Collector

[Gottfried]

Hi, Guixers,

I think I managed to add the proposal of Felix Lechner and to set up my 
brackets.

Behind:
(sane-service-type _ => sane-backends))))

I remove one bracket (because the 4. brackets closes "services")

and

behind:

(guix-service-type
         config => (guix-configuration
           (inherit config)
           (extra-options (list "--gc-keep-derivations=yes"
"--gc-keep-outputs=yes"))

I add 3 brackets, to have 5 brackets (the 5. bracket closes "services").

This is how I understand it.
Am I right?

kind regards
Gottfried


My confi.scm before changing the brackets.


;; This is an operating system configuration generated
;; by the graphical installer.

(use-modules (gnu))
(use-package-modules cups scanner)
(use-service-modules cups desktop networking ssh xorg)

(operating-system
   (locale "de_DE.utf8")
   (timezone "Europe/Berlin")
   (keyboard-layout (keyboard-layout "de"))
   (host-name "Tuxedo")
   (users (cons* (user-account
                   (name "gfp")
                   (comment "Gfp")
                   (group "users")
                   (home-directory "/home/gfp")
                   (supplementary-groups
                     '("wheel" "netdev" "audio" "video")))
                 %base-user-accounts))
   (packages
     (append
       (list (specification->package "nss-certs"))                 
       %base-packages))
   (services
     (append
       (list (service mate-desktop-service-type)
             (service enlightenment-desktop-service-type)
                        (service cups-service-type
                                (cups-configuration
                                        (web-interface? #t)
                                        (extensions (list cups-filters 
hplip))))                        
                        (service openssh-service-type)
             (service tor-service-type)
             (set-xorg-configuration
               (xorg-configuration
                 (keyboard-layout keyboard-layout))))
       (modify-services %desktop-services
                (sane-service-type _ => sane-backends))))
       (guix-service-type
         config => (guix-configuration
           (inherit config)
           (extra-options (list "--gc-keep-derivations=yes"
"--gc-keep-outputs=yes"))

   (bootloader
     (bootloader-configuration
       (bootloader grub-efi-bootloader)
       (target "/boot/efi")
       (keyboard-layout keyboard-layout)))
   (swap-devices
     (list (uuid "51d5cd20-4513-4a02-9e35-df4338eccaa0")))
   (file-systems
     (cons* (file-system
              (mount-point "/boot/efi")
              (device (uuid "BB77-FE3B" 'fat32))
              (type "vfat"))
            (file-system
              (mount-point "/")
              (device
                (uuid "4fb0ed7c-61ab-45eb-be0b-ff527b320e6d"
                      'ext4))
              (type "ext4"))
            %base-file-systems)))


Gottfried


Am 25.07.22 um 17:20 schrieb Felix Lechner:
> Hi,
>
> On Mon, Jul 25, 2022 at 2:52 AM Gottfried <gottfried@posteo.de> wrote:
> > The manual says that it is dangerous to use: "guix gc"
> > because it can delete too much.
>
> I agree that 'guix gc' deletes too much, but it's probably not
> dangerous. You will just see some downloads and builds repeated when
> reconfiguring later.
>
> I believe 'guix gc' deletes items that are not garbage to me (but I am
> new to Guix). Based on friendly advice I received, I currently use
> these settings:
>
> (guix-service-type
>    config => (guix-configuration
>      (inherit config)
>      (extra-options (list "--gc-keep-derivations=yes" "--gc-keep-outputs=yes"))
> ...
>
> Kind regards
> Felix Lechner

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