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kde: Allow kde_next as a desktop environment
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163 changes: 163 additions & 0 deletions
163
nixos/modules/services/x11/desktop-managers/kde4_next.nix
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{ config, lib, pkgs, ... }: | ||
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with lib; | ||
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let | ||
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xcfg = config.services.xserver; | ||
cfg = xcfg.desktopManager.kde4_next; | ||
xorg = pkgs.xorg; | ||
kde = pkgs.kde4_next; | ||
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# Disable Nepomuk and Strigi by default. As of KDE 4.7, they don't | ||
# really work very well (e.g. searching files often fails to find | ||
# files), segfault sometimes and consume significant resources. | ||
# They can be re-enabled in the KDE System Settings under "Desktop | ||
# Search". | ||
nepomukConfig = pkgs.writeTextFile | ||
{ name = "nepomuk-config"; | ||
destination = "/share/config/nepomukserverrc"; | ||
text = | ||
'' | ||
[Basic Settings] | ||
Start Nepomuk=false | ||
[Service-nepomukstrigiservice] | ||
autostart=false | ||
''; | ||
}; | ||
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phononBackends = { | ||
gstreamer = [ | ||
pkgs.phonon_backend_gstreamer | ||
pkgs.gst_all.gstPluginsBase | ||
pkgs.gst_all.gstPluginsGood | ||
pkgs.gst_all.gstPluginsUgly | ||
pkgs.gst_all.gstPluginsBad | ||
pkgs.gst_all.gstFfmpeg # for mp3 playback | ||
pkgs.gst_all.gstreamer # needed? | ||
]; | ||
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vlc = [pkgs.phonon_backend_vlc]; | ||
}; | ||
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phononBackendPackages = flip concatMap cfg.phononBackends | ||
(name: attrByPath [name] (throw "unknown phonon backend `${name}'") phononBackends); | ||
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in | ||
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{ | ||
options = { | ||
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services.xserver.desktopManager.kde4_next = { | ||
enable = mkOption { | ||
type = types.bool; | ||
default = false; | ||
description = "Enable the KDE 4 desktop environment."; | ||
}; | ||
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phononBackends = mkOption { | ||
type = types.listOf types.str; | ||
default = ["gstreamer"]; | ||
example = ["gstreamer" "vlc"]; | ||
description = "Which phonon multimedia backend kde should use"; | ||
}; | ||
}; | ||
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}; | ||
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config = mkIf (xcfg.enable && cfg.enable) { | ||
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# If KDE 4 is enabled, make it the default desktop manager (unless | ||
# overridden by the user's configuration). | ||
# !!! doesn't work yet ("Multiple definitions. Only one is allowed | ||
# for this option.") | ||
# services.xserver.desktopManager.default = mkOverride 900 "kde4_next"; | ||
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services.xserver.desktopManager.session = singleton | ||
{ name = "kde4_next"; | ||
bgSupport = true; | ||
start = | ||
'' | ||
# The KDE icon cache is supposed to update itself | ||
# automatically, but it uses the timestamp on the icon | ||
# theme directory as a trigger. Since in Nix the | ||
# timestamp is always the same, this doesn't work. So as | ||
# a workaround, nuke the icon cache on login. This isn't | ||
# perfect, since it may require logging out after | ||
# installing new applications to update the cache. | ||
# See http://lists-archives.com/kde-devel/26175-what-when-will-icon-cache-refresh.html | ||
rm -fv $HOME/.kde/cache-*/icon-cache.kcache | ||
# Qt writes a weird ‘libraryPath’ line to | ||
# ~/.config/Trolltech.conf that causes the KDE plugin | ||
# paths of previous KDE invocations to be searched. | ||
# Obviously using mismatching KDE libraries is potentially | ||
# disastrous, so here we nuke references to the Nix store | ||
# in Trolltech.conf. A better solution would be to stop | ||
# Qt from doing this wackiness in the first place. | ||
if [ -e $HOME/.config/Trolltech.conf ]; then | ||
sed -e '/nix\\store\|nix\/store/ d' -i $HOME/.config/Trolltech.conf | ||
fi | ||
# Start KDE. | ||
exec ${kde.kdebase_workspace}/bin/startkde | ||
''; | ||
}; | ||
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security.setuidOwners = singleton | ||
{ program = "kcheckpass"; | ||
source = "${kde.kdebase_workspace}/lib/kde4/libexec/kcheckpass"; | ||
owner = "root"; | ||
group = "root"; | ||
setuid = true; | ||
}; | ||
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environment.systemPackages = | ||
[ kde.kdelibs | ||
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kde.kde_baseapps # Splitted kdebase | ||
kde.kde_workspace | ||
kde.kde_runtime | ||
kde.konsole | ||
kde.kate | ||
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kde.kde_wallpapers # contains kdm's default background | ||
kde.oxygen_icons | ||
pkgs.virtuoso # to enable Nepomuk to find Virtuoso | ||
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# Starts KDE's Polkit authentication agent. | ||
kde.polkit_kde_agent | ||
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# Miscellaneous runtime dependencies. | ||
kde.qt4 # needed for qdbus | ||
pkgs.shared_mime_info | ||
xorg.xmessage # so that startkde can show error messages | ||
xorg.xset # used by startkde, non-essential | ||
xorg.xauth # used by kdesu | ||
pkgs.shared_desktop_ontologies # used by nepomuk | ||
pkgs.strigi # used by nepomuk | ||
pkgs.mysql # used by akonadi | ||
] | ||
++ lib.optional config.hardware.pulseaudio.enable kde.kmix # Perhaps this should always be enabled | ||
++ lib.optional config.hardware.bluetooth.enable kde.bluedevil | ||
++ lib.optional config.networking.networkmanager.enable kde.networkmanagement | ||
++ [ nepomukConfig ] ++ phononBackendPackages; | ||
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environment.pathsToLink = [ "/share" ]; | ||
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environment.etc = singleton | ||
{ source = "${pkgs.xkeyboard_config}/etc/X11/xkb"; | ||
target = "X11/xkb"; | ||
}; | ||
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# Enable helpful DBus services. | ||
services.udisks2.enable = true; | ||
services.upower.enable = config.powerManagement.enable; | ||
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security.pam.services.kde = { allowNullPassword = true; }; | ||
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}; | ||
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} |