nixpkgs/modules/services/x11/display-managers/kdm.nix

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{pkgs, config, ...}:
with pkgs.lib;
let
dmcfg = config.services.xserver.displayManager;
cfg = dmcfg.kdm;
inherit (pkgs.kde4) kdebase_workspace;
defaultConfig =
''
[Shutdown]
HaltCmd=${pkgs.upstart}/sbin/halt
RebootCmd=${pkgs.upstart}/sbin/reboot
${optionalString (config.system.boot.loader.id == "grub") ''
BootManager=Grub
''}
[X-*-Core]
Xrdb=${pkgs.xlibs.xrdb}/bin/xrdb
SessionsDirs=${dmcfg.session.desktops}
Session=${dmcfg.session.script}
FailsafeClient=${pkgs.xterm}/bin/xterm
[X-:*-Core]
ServerCmd=${dmcfg.xserverBin} ${dmcfg.xserverArgs}
# Needed to prevent the X server from dying on logout and not coming back:
TerminateServer=true
[X-*-Greeter]
HiddenUsers=root,nixbld1,nixbld2,nixbld3,nixbld4,nixbld5,nixbld6,nixbld7,nixbld8,nixbld9,nixbld10
PluginsLogin=${kdebase_workspace}/lib/kde4/kgreet_classic.so
'';
kdmrc = pkgs.stdenv.mkDerivation {
name = "kdmrc";
config = defaultConfig + cfg.extraConfig;
buildCommand =
''
echo "$config" > $out
cat ${kdebase_workspace}/share/config/kdm/kdmrc >> $out
'';
};
in
{
###### interface
options = {
services.xserver.displayManager.kdm = {
enable = mkOption {
default = false;
description = ''
Whether to enable the KDE display manager.
'';
};
extraConfig = mkOption {
default = "";
description = ''
Options appended to <filename>kdmrc</filename>, the
configuration file of KDM.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
services.xserver.displayManager.job =
{ execCmd = "PATH=${pkgs.grub}/sbin:$PATH ${kdebase_workspace}/bin/kdm -config ${kdmrc}";
logsXsession = true;
};
security.pam.services = [ { name = "kde"; } ];
};
}