{ config, pkgs, ... }: with pkgs.lib; let dmcfg = config.services.xserver.displayManager; cfg = dmcfg.slim; slimConfig = pkgs.writeText "slim.cfg" '' xauth_path ${dmcfg.xauthBin} default_xserver ${dmcfg.xserverBin} xserver_arguments ${dmcfg.xserverArgs} sessions ${pkgs.lib.concatStringsSep "," (dmcfg.session.names ++ ["custom"])} login_cmd exec ${pkgs.stdenv.shell} ${dmcfg.session.script} "%session" halt_cmd ${config.systemd.package}/sbin/shutdown -h now reboot_cmd ${config.systemd.package}/sbin/shutdown -r now ${optionalString (cfg.defaultUser != "") ("default_user " + cfg.defaultUser)} ${optionalString cfg.autoLogin "auto_login yes"} ''; # Unpack the SLiM theme, or use the default. slimThemesDir = let unpackedTheme = pkgs.stdenv.mkDerivation { name = "slim-theme"; buildCommand = '' ensureDir $out cd $out unpackFile ${cfg.theme} ln -s * default ''; }; in if cfg.theme == null then "${pkgs.slim}/share/slim/themes" else unpackedTheme; in { ###### interface options = { services.xserver.displayManager.slim = { enable = mkOption { default = true; description = '' Whether to enable SLiM as the display manager. ''; }; theme = mkOption { default = null; example = pkgs.fetchurl { url = http://download.berlios.de/slim/slim-wave.tar.gz; sha256 = "0ndr419i5myzcylvxb89m9grl2xyq6fbnyc3lkd711mzlmnnfxdy"; }; description = '' The theme for the SLiM login manager. If not specified, SLiM's default theme is used. See for a collection of themes. ''; }; defaultUser = mkOption { default = ""; example = "login"; description = '' The default user to load. If you put a username here you get it automatically loaded into the username field, and the focus is placed on the password. ''; }; autoLogin = mkOption { default = false; example = true; description = '' Automatically log in as the default user. ''; }; }; }; ###### implementation config = mkIf cfg.enable { services.xserver.displayManager.job = { preStart = '' rm -f /var/log/slim.log ''; environment = { SLIM_CFGFILE = slimConfig; SLIM_THEMESDIR = slimThemesDir; }; execCmd = "exec ${pkgs.slim}/bin/slim"; }; # Allow null passwords so that the user can login as root on the # installation CD. security.pam.services = [ { name = "slim"; allowNullPassword = true; startSession = true; } ]; }; }