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List:       kde-core-devel
Subject:    Re: renaming kde-config to kde4-config
From:       David Faure <faure () kde ! org>
Date:       2006-06-26 23:01:05
Message-ID: 200606270101.06209.faure () kde ! org
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On Tuesday 27 June 2006 00:12, André Wöbbeking wrote:
> > I'm fine with renaming it. But "in order to be able to install it in
> > the same dir as the KDE3 one" makes no sense. kde3 and kde4 need
> > different installation directories ("prefixes") otherwise everything
> > is going to clash. From kio_uiserver to konqueror to kmail, etc.
> 
> It'll be interesting what Debian will do as they install all to /usr/bin 
> and /usr/lib. 
 
Sounds like we (or they) will have to rename all binaries installed by kdelibs then - \
 kio_uiserver4? kded4? kbuildsycoca4? kcookiejar4? kmailservice4? ktelnetservice4? \
kdontchangethehostname4? ;) Somehow I have the feeling that this isn't right...

Therefore I suggest that we move those "helper binaries" to \
<kdeprefix>/libexec/kde4/. They don't need to be in $PATH, they only need to be in \
KStandardDirs' "exe" resource, right? The only downside is that the famous "run \
kbuildsycoca" tip would become "run <kdeprefix>/libexec/kde4/kbuildsycoca" Well, \
maybe for that one we can have a kbuildsycoca4 wrapper or symlink ;)

For instance:
A kde3 app using a kio job wants to start kio_uiserver (from kdelibs3) and talk to it \
using DCOP. A kde4 app using a kio job wants to start kio_uiserver (from kdelibs4) \
and talk to it using DBus.

But "starting kio_uiserver" isn't done with $PATH, it's done by looking up the \
.desktop in ksycoca. So if kde3 and kde4 are configured with different paths for the \
service .desktop files  (*) [no way to make this work otherwise!], then a different \
instance of kio_uiserver can be started...

(*) maybe we should install all kde4 services in <kdeprefix>/share/services/kde4/ \
then,  instead of just /share/services/,
This way we could skip kde3 services in ksycoca4...

I think this would nicely put it together. To start kio_uiserver4, kio-kde4 looks up \
a kde4 service  in ksycoca4, and starts it from <kdeprefix>/share/services/kde4. This \
can all be done alongside a kde3 installed in the same or a different prefix.

-- 
David Faure, faure@kde.org, sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).


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