Re: How to handle required plugins and dbus services for GNOME Programs?

[Federico Beffa <beffa@ieee.org>]

On Thu, Jun 25, 2015 at 1:49 PM, Ludovic Courtès <ludo@gnu.org> wrote:
> Federico Beffa <beffa@ieee.org> skribis:
>
>> ludo@gnu.org (Ludovic Courtès) writes:
>
> [...]
>
>>> Really?  In Evince, I can change the state of various things (such as
>>> whether or not to view documents continuously), but those changes are
>>> lost across restarts.  However, changes made via dconf-editor are not
>>> lost.  Weird no?
>>
>> 'dconf' is responsible for handling the program configuration. For
>> writes, it contacts D-Bus, for read it doesn't need D-Bus.
>>
>> https://developer.gnome.org/dconf/0.22/dconf-overview.html
>>
>> If 'dconf' is not available, the program reverts to a 'memory' back-end
>> and configuration is lost upon exit.
>
> In this last sentence, are you referring to dconf-the-program,
> dconf-the-library, or dconf-the-service?
>
> dconf-the-package is in my profile, so I would expect Evince to
> automatically dbus-launch it when it needs to save its settings, but
> apparently that doesn’t happen.

I'm not sure about the terminology, but if you do

GIO_EXTRA_MODULES=/gnu/store/...-dconf-0.22.0/lib/gio/modules evince

it should work. (See comments in the 'glib-or-gtk-build-system'.)

>
>> For this reason 'dconf' should be available to all GLib programs
>> (implicit input to 'glib-or-gtk-build-system'?).
>
> dconf-the-program?

See above.

>
> Thanks,
> Ludo’.