GNU bug report logs - #22835
slim-service takes undocumented parameter and behaves surprisingly on auto-login

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Andreas Enge <andreas <at> enge.fr>
To: bug-guix <at> gnu.org
Subject: Autologin
Date: Sun, 28 Feb 2016 00:14:53 +0100

Hello,

I am trying to create a configuration using slim-service with autologin.

Looking at the code in gnu/services/xorg.scm, I find the following definition:
(define* (slim-service #:key (slim slim)
                       (allow-empty-passwords? #t) auto-login?
                       (default-user "")
                       (theme %default-slim-theme)
                       (theme-name %default-slim-theme-name)
                       (xauth xauth) (shepherd shepherd) (bash bash)
                       (auto-login-session #~(string-append #$windowmaker
                                                            "/bin/wmaker"))
                       (startx (xorg-start-command)))

The parameter auto-login-session is not documented in guix.texi.

It also is a bit surprising; since I had added only xfce to my packages,
I expected this to start. Or is this impossible to realise?

Andreas

Message #8 received at 22835 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <rekado <at> elephly.net>
To: Andreas Enge <andreas <at> enge.fr>
Cc: 22835 <at> debbugs.gnu.org
Subject: Re: bug#22835: Autologin
Date: Sun, 28 Feb 2016 11:32:46 +0100

Andreas Enge <andreas <at> enge.fr> writes:

> I am trying to create a configuration using slim-service with autologin.
>
> Looking at the code in gnu/services/xorg.scm, I find the following definition:
> (define* (slim-service #:key (slim slim)
>                        (allow-empty-passwords? #t) auto-login?
>                        (default-user "")
>                        (theme %default-slim-theme)
>                        (theme-name %default-slim-theme-name)
>                        (xauth xauth) (shepherd shepherd) (bash bash)
>                        (auto-login-session #~(string-append #$windowmaker
>                                                             "/bin/wmaker"))
>                        (startx (xorg-start-command)))
>
> The parameter auto-login-session is not documented in guix.texi.
>
> It also is a bit surprising; since I had added only xfce to my packages,
> I expected this to start. Or is this impossible to realise?

I have a working auto-login configuration using “modify-services”:

    (services (modify-services %desktop-services
                (slim-service-type config =>
                  (slim-configuration (inherit config)
                    (auto-login? #t)
                    (default-user "rekado")))))

~~ Ricardo

Message #11 received at 22835 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Enge <andreas <at> enge.fr>
To: Ricardo Wurmus <rekado <at> elephly.net>
Cc: 22835 <at> debbugs.gnu.org
Subject: Re: bug#22835: Autologin
Date: Sun, 28 Feb 2016 11:53:22 +0100

On Sun, Feb 28, 2016 at 11:32:46AM +0100, Ricardo Wurmus wrote:
> Andreas Enge <andreas <at> enge.fr> writes:
> > Looking at the code in gnu/services/xorg.scm, I find the following definition:
> > (define* (slim-service #:key (slim slim)
> >                        (allow-empty-passwords? #t) auto-login?
> >                        (default-user "")
> >                        (theme %default-slim-theme)
> >                        (theme-name %default-slim-theme-name)
> >                        (xauth xauth) (shepherd shepherd) (bash bash)
> >                        (auto-login-session #~(string-append #$windowmaker
> >                                                             "/bin/wmaker"))
> >                        (startx (xorg-start-command)))
> > It also is a bit surprising; since I had added only xfce to my packages,
> > I expected this to start. Or is this impossible to realise?
> 
> I have a working auto-login configuration using “modify-services”:

Sorry, I forgot to describe what "does not work" in my opinion. With
auto-login? set to #f, I get the login screen with a selection of sessions.
By default, xfce and ratpoison, since these are the packages present in the
default configuration. I deleted ratpoison from my configuration, so I can
only log in to xfce after typing user and password.

Now when I set auto-login? to #t, it does not log into xfce, but launches
the command given in auto-login-session. So I end up with windowmaker, which
did not even appear in the package list (but probably gets pulled in auto-
matically somehow). So at the least, the parameter needs to be documented.
I easily modified it to launch startxfce4 of the xfce package instead, and
ended up in xfce. Maybe this could be made the default choice anyway to
be consistent with our example desktop configuration?

More logically would be to log into one of the sessions that is also
proposed when auto-login? is set to #f. But this looks more complex, even
more so when there are several options present (which ones to choose?),
so maybe just documenting the command would be enough.

Andreas

Message #14 received at 22835 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Andreas Enge <andreas <at> enge.fr>
Cc: Ricardo Wurmus <rekado <at> elephly.net>, 22835 <at> debbugs.gnu.org
Subject: Re: bug#22835: Autologin
Date: Sun, 28 Feb 2016 16:55:45 +0100

Side comment: could you change the subject to a phrase that reflects
what the bug is?  :-)

(Use the ‘retitle’ command of request <at> debbugs.gnu.org,
<http://debbugs.gnu.org/server-refcard.html>.)

Ludo’.

Message #21 received at 22835-done <at> debbugs.gnu.org (full text, mbox):

From: Andreas Enge <andreas <at> enge.fr>
To: 22835-done <at> debbugs.gnu.org
Subject: Close
Date: Tue, 19 Feb 2019 23:23:49 +0100

This can probably be closed, as nobody really remembers any more
what it is about.

Andreas

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