Elektra backend for KDE

[Thiago Macieira]

Avi Alkalay wrote:
>I don't know exactly what this means, since I don't know what KDEDIR etc
> means.

KDEDIR is a deprecated variable. It points to the KDE's installation 
prefix.

KDEHOME is where the user's settings are stored. By default, this is 
$HOME/.kde. The configuration is stored there too, but this is not 
necessary if the backend uses in its own storage.

KDEDIRS, however, is a lot more complicated. It lists the many different 
directories that should be searched for configuration. It defaults to the 
KDE installation prefix. The storage backend MUST allow loading the 
configuration from different trees and merge them in the order they were 
declared in KDEDIRS, respecting the Immutable setting.

This applies to configuration as well as menus and icons (though those two 
are supplanted by XDG_DATA_DIRS). Conceivably, the storage backend could 
use XDG_DATA_DIRS too and we'd be done with KDEDIRS, but this has to be 
upheld.

To add insult to injury, this setting must be done per-application, 
unless /etc/kderc makes the list constant (Kiosk mode). This means that, 
if there is a daemon that handles all requests, this daemon must be told 
the path list that each application expects its settings to be loaded 
from.

>I'm ready to write the backend, but right now I still don't know where
>to start write it. If it is in the playground code, or in the
>mainstream one.

Since this is KDE4 code, use branches/work/kde4/playground/libs.

-- 
  Thiago Macieira  -  thiago (AT) macieira.info - thiago (AT) kde.org
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