On 12 April 2010 17:45, Anders F Björklund <[email protected]> wrote: > Tony White wrote: > >> Yeah the gnome ui is written in gtk and the kde ui is written in qt4, >> I don't quite see how that makes them exactly desktop specific other >> than using a few bindings from either desktop, which could be stripped >> out and replaced if need be. Both are open source projects and are >> easily installed whatever the desktop. > > Well gnome-packagekit has GNOME dependencies and KPackageKit has > KDE4 dependencies, beyond just GTK+ and Qt4. This is by design... > Some of the UI components are reusable outside those applications. > PackageKit itself uses GObject (and DBUS), plus PolicyKit/DeviceKit. > >> packagekit is mostly for users that don't want to go anywhere near the >> command line. [...] > > But PackageKit itself is usable for those users, for instance some > applications use it to install font support or drivers and so on. > You are probably right about the audience, some typical use cases > and users are listed on http://www.packagekit.org/pk-profiles.html > >> One thing I'm a little unsure of is that I think that some hooks would >> maybe need to be needed somewhere (Maybe to nix itself) To tell >> packagekit something has happened, started, finished, etc? > > Not really, PackageKit will spawn a new backend when it needs some > information and then shut down after an idle timeout (= 5 seconds!) > This *could* mean that Nix would need an interim cache database, > for caching Nixpkgs information between those PackageKit calls... > >> I agree that C++ is a good idea but just a proof of concept using perl >> or something might be a good starting point. > > Main reason for Perl would be that Nix is (partly) written in it, > otherwise PackageKit has better support for making Python backends. > Here's one example of such a backend written in Perl (for URPMI): > http://cgit.freedesktop.org/packagekit/tree/backends/urpmi/helpers/urpmi-dispatched-backend.pl > > --anders > >
Hi Anders, Looks like you've been sniffing around their tree. :) I think the apt implementation is the one to look at. Both python and C++ back ends. It's also the most feature complete on the matrix. Not quite sure what this is : http://cgit.freedesktop.org/packagekit/tree/lib/packagekit-qt QT = C++. Thanks, Tony _______________________________________________ nix-dev mailing list [email protected] https://mail.cs.uu.nl/mailman/listinfo/nix-dev
