148 lines
3.6 KiB
Nix
148 lines
3.6 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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dmcfg = config.services.displayManager;
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xcfg = config.services.xserver;
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xdmcfg = xcfg.displayManager;
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cfg = config.services.displayManager.ly;
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xEnv = config.systemd.services.display-manager.environment;
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ly = cfg.package;
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iniFmt = pkgs.formats.iniWithGlobalSection { };
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inherit (lib)
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concatMapStrings
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attrNames
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getAttr
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mkIf
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mkOption
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mkEnableOption
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mkPackageOption
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;
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xserverWrapper = pkgs.writeShellScript "xserver-wrapper" ''
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${concatMapStrings (n: ''
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export ${n}="${getAttr n xEnv}"
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'') (attrNames xEnv)}
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exec systemd-cat -t xserver-wrapper ${xdmcfg.xserverBin} ${toString xdmcfg.xserverArgs} "$@"
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'';
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defaultConfig = {
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shutdown_cmd = "/run/current-system/systemd/bin/systemctl poweroff";
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restart_cmd = "/run/current-system/systemd/bin/systemctl reboot";
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tty = 2;
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service_name = "ly";
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path = "/run/current-system/sw/bin";
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term_reset_cmd = "${pkgs.ncurses}/bin/tput reset";
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term_restore_cursor_cmd = "${pkgs.ncurses}/bin/tput cnorm";
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mcookie_cmd = "/run/current-system/sw/bin/mcookie";
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waylandsessions = "${dmcfg.sessionData.desktops}/share/wayland-sessions";
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wayland_cmd = dmcfg.sessionData.wrapper;
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xsessions = "${dmcfg.sessionData.desktops}/share/xsessions";
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xauth_cmd = lib.optionalString xcfg.enable "${pkgs.xorg.xauth}/bin/xauth";
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x_cmd = lib.optionalString xcfg.enable xserverWrapper;
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x_cmd_setup = dmcfg.sessionData.wrapper;
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};
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finalConfig = defaultConfig // cfg.settings;
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cfgFile = iniFmt.generate "config.ini" { globalSection = finalConfig; };
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in
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{
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options = {
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services.displayManager.ly = {
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enable = mkEnableOption "ly as the display manager";
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package = mkPackageOption pkgs [ "ly" ] { };
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settings = mkOption {
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type =
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with lib.types;
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attrsOf (oneOf [
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str
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int
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bool
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]);
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default = { };
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example = {
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load = false;
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save = false;
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};
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description = ''
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Extra settings merged in and overwriting defaults in config.ini.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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assertions = [
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{
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assertion = !dmcfg.autoLogin.enable;
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message = ''
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ly doesn't support auto login.
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'';
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}
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];
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security.pam.services.ly = {
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startSession = true;
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unixAuth = true;
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enableGnomeKeyring = lib.mkDefault config.services.gnome.gnome-keyring.enable;
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};
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environment = {
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etc."ly/config.ini".source = cfgFile;
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systemPackages = [ ly ];
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pathsToLink = [ "/share/ly" ];
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};
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services = {
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dbus.packages = [ ly ];
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displayManager = {
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enable = true;
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execCmd = "exec /run/current-system/sw/bin/ly";
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};
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xserver = {
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# To enable user switching, allow ly to allocate TTYs/displays dynamically.
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tty = null;
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display = null;
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};
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};
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systemd = {
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# We're not using the upstream unit, so copy these:
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# https://github.com/fairyglade/ly/blob/master/res/ly.service
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services.display-manager = {
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after = [
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"systemd-user-sessions.service"
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"plymouth-quit-wait.service"
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"getty@tty${toString finalConfig.tty}.service"
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];
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conflicts = [ "getty@tty7.service" ];
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serviceConfig = {
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Type = "idle";
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StandardInput = "tty";
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TTYPath = "/dev/tty${toString finalConfig.tty}";
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TTYReset = "yes";
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TTYVHangup = "yes";
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};
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};
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};
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};
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meta.maintainers = with lib.maintainers; [ vonfry ];
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}
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