Guix guided installer should set up printers and scanners

Hi,

currently, the Guix guided installer does not set up printers and

scanners (see bug# 38064), making those not work after installation.

It would be good to extend the Guix installer to also install "cups" and

"sane-backends" services, just like it already does for networking services,

if applicable. Long term, we could also do the actual configuration, but

right now even just the services below would already be a big improvement:

The relevant operating-system config snippets are:

(services

(append

(list (service cups-service-type

(cups-configuration

(web-interface? #t)

(extensions

(list cups-filters escpr hplip-minimal))))

(simple-service 'custom-udev-rules udev-service-type

(list sane-backends))

[...]

Hi,

Danny Milosavljevic <dannym@scratchpost.org> skribis:

This bit above would have to be opt-in, but…

… this one could perhaps be enabled by default for “desktop”

installations, since, I believe, it doesn’t increase the disk space used

by the resulting system.

WDYT?

Thanks,

Ludo’.

On Mon, Nov 11, 2019 at 10:01:32PM +0100, Ludovic Courtès wrote:

This could be sane-backends-minimal. I checked the udev-rules in both of

them and they're identical.

At the very least I think the udev rules should be added to the cups

service.

--

Efraim Flashner <efraim@flashner.co.il> אפרים פלשנר

GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351

Confidentiality cannot be guaranteed on emails sent or received unencrypted

Hi,

On Tue, 12 Nov 2019 09:35:30 +0200

Efraim Flashner <efraim@flashner.co.il> wrote:

Hmm, does cups have anything to do with scanning?

Long term, people will not print things anymore but will scan things

(until such time where that stops, too), so "cups" will be way less

important that "sane" in the long run--and, if optional, it can easily

be that a user has "sane" but not "cups" in the system.

I'd prefer to just add

(simple-service 'custom-udev-rules udev-service-type

(list sane-backends-minimal))

unconditionally (if it doesn't increase the size anyway).

On Tue, Nov 12, 2019 at 02:49:44PM +0100, Danny Milosavljevic wrote:

This does not match my experience. Printing things at university for

free (up to a quota) is very popular with students. Many prefer

reading on paper or making notes. Paper is like a cheap extra screen.

Nonetheless, instead of making hplip a default, I would prefer having

a video on how to install and configure printing services among top

Web search results. This sounds like much work, but I’m not sure how

much work it really is. Installing services is really easy on Guix.

Regards,

Florian

Hi!

"pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> skribis:

In this context, students to not need to run the CUPS daemon on their

laptop though: they just need to fill out ~/.cups/client.conf so that it

talks to the right pool server, and then everything should “just work.”

Ludo’.

The installer is now proposing to install the cups service.

Closing, thanks.

Mathieu