Something went wrong. Try again.
What happens if I push all of nixpkgs
Something went wrong. Try again.
9.7 kB · 299 lines
Nix
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300{ config, lib, pkgs, ...}:
let cfg = config.services.displayManager;
installedSessions = pkgs.runCommand "desktops" { # trivial derivation preferLocalBuild = true; allowSubstitutes = false; } '' mkdir -p "$out/share/"{xsessions,wayland-sessions}
${lib.concatMapStrings (pkg: '' for n in ${lib.concatStringsSep " " pkg.providedSessions}; do if ! test -f ${pkg}/share/wayland-sessions/$n.desktop -o \ -f ${pkg}/share/xsessions/$n.desktop; then echo "Couldn't find provided session name, $n.desktop, in session package ${pkg.name}:" echo " ${pkg}" return 1 fi done
if test -d ${pkg}/share/xsessions; then ${pkgs.buildPackages.xorg.lndir}/bin/lndir ${pkg}/share/xsessions $out/share/xsessions fi if test -d ${pkg}/share/wayland-sessions; then ${pkgs.buildPackages.xorg.lndir}/bin/lndir ${pkg}/share/wayland-sessions $out/share/wayland-sessions fi '') cfg.sessionPackages} '';in{ options = { services.displayManager = { enable = lib.mkEnableOption "systemd's display-manager service";
preStart = lib.mkOption { type = lib.types.lines; default = ""; example = "rm -f /var/log/my-display-manager.log"; description = "Script executed before the display manager is started."; };
execCmd = lib.mkOption { type = lib.types.str; example = lib.literalExpression ''"''${pkgs.lightdm}/bin/lightdm"''; description = "Command to start the display manager."; };
environment = lib.mkOption { type = with lib.types; attrsOf unspecified; default = { }; description = "Additional environment variables needed by the display manager."; };
hiddenUsers = lib.mkOption { type = with lib.types; listOf str; default = [ "nobody" ]; description = '' A list of users which will not be shown in the display manager. ''; };
logToFile = lib.mkOption { type = lib.types.bool; default = false; description = '' Whether the display manager redirects the output of the session script to {file}`~/.xsession-errors`. ''; };
logToJournal = lib.mkOption { type = lib.types.bool; default = true; description = '' Whether the display manager redirects the output of the session script to the systemd journal. ''; };
# Configuration for automatic login. Common for all DM. autoLogin = lib.mkOption { type = lib.types.submodule ( { config, options, ... }: { options = { enable = lib.mkOption { type = lib.types.bool; default = config.user != null; defaultText = lib.literalExpression "config.${options.user} != null"; description = '' Automatically log in as {option}`autoLogin.user`. ''; };
user = lib.mkOption { type = with lib.types; nullOr str; default = null; description = '' User to be used for the automatic login. ''; }; }; } );
default = { }; description = '' Auto login configuration attrset. ''; };
defaultSession = lib.mkOption { type = lib.types.nullOr lib.types.str // { description = "session name"; check = d: lib.assertMsg (d != null -> (lib.types.str.check d && lib.elem d cfg.sessionData.sessionNames)) '' Default graphical session, '${d}', not found. Valid names for 'services.displayManager.defaultSession' are: ${lib.concatStringsSep "\n " cfg.sessionData.sessionNames} ''; }; default = null; example = "gnome"; description = '' Graphical session to pre-select in the session chooser (only effective for GDM, LightDM and SDDM).
On GDM, LightDM and SDDM, it will also be used as a session for auto-login.
Set this option to empty string to get an error with a list of currently available sessions. ''; };
sessionData = lib.mkOption { description = "Data exported for display managers’ convenience"; internal = true; default = { }; };
sessionPackages = lib.mkOption { type = lib.types.listOf ( lib.types.package // { description = "package with provided sessions"; check = p: lib.assertMsg ( lib.types.package.check p && p ? providedSessions && p.providedSessions != [ ] && lib.all lib.isString p.providedSessions ) '' Package, '${p.name}', did not specify any session names, as strings, in 'passthru.providedSessions'. This is required when used as a session package.
The session names can be looked up in: ${p}/share/xsessions ${p}/share/wayland-sessions ''; } ); default = [ ]; description = '' A list of packages containing x11 or wayland session files to be passed to the display manager. ''; }; }; };
imports = [ (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "autoLogin" ] [ "services" "displayManager" "autoLogin" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "defaultSession" ] [ "services" "displayManager" "defaultSession" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "hiddenUsers" ] [ "services" "displayManager" "hiddenUsers" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "job" "environment" ] [ "services" "displayManager" "environment" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "job" "execCmd" ] [ "services" "displayManager" "execCmd" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "job" "logToFile" ] [ "services" "displayManager" "logToFile" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "job" "logToJournal" ] [ "services" "displayManager" "logToJournal" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "job" "preStart" ] [ "services" "displayManager" "preStart" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "sessionData" ] [ "services" "displayManager" "sessionData" ] ) (lib.mkRenamedOptionModule [ "services" "xserver" "displayManager" "sessionPackages" ] [ "services" "displayManager" "sessionPackages" ] ) ];
config = lib.mkIf cfg.enable { assertions = [ { assertion = cfg.autoLogin.enable -> cfg.autoLogin.user != null; message = '' services.displayManager.autoLogin.enable requires services.displayManager.autoLogin.user to be set ''; } ];
# Make xsessions and wayland sessions available in XDG_DATA_DIRS # as some programs have behavior that depends on them being present environment.sessionVariables.XDG_DATA_DIRS = lib.mkIf (cfg.sessionPackages != [ ]) [ "${cfg.sessionData.desktops}/share" ];
services.displayManager.sessionData = { desktops = installedSessions; sessionNames = lib.concatMap (p: p.providedSessions) cfg.sessionPackages; # We do not want to force users to set defaultSession when they have only single DE. autologinSession = if cfg.defaultSession != null then cfg.defaultSession else if cfg.sessionData.sessionNames != [ ] then lib.head cfg.sessionData.sessionNames else null; };
# so that the service won't be enabled when only startx is used systemd.services.display-manager.enable = let dmConf = config.services.xserver.displayManager; noDmUsed = !( cfg.gdm.enable || cfg.sddm.enable || dmConf.xpra.enable || dmConf.lightdm.enable || cfg.ly.enable || cfg.lemurs.enable ); in lib.mkIf noDmUsed (lib.mkDefault false);
systemd.services.display-manager = { description = "Display Manager"; after = [ "acpid.service" "systemd-logind.service" "systemd-user-sessions.service" "autovt@tty1.service" ]; conflicts = [ "autovt@tty1.service" ]; restartIfChanged = false;
environment = cfg.environment;
preStart = cfg.preStart; script = lib.mkIf (config.systemd.services.display-manager.enable == true) cfg.execCmd;
# Stop restarting if the display manager stops (crashes) 2 times # in one minute. Starting X typically takes 3-4s. startLimitIntervalSec = 30; startLimitBurst = 3; serviceConfig = { Restart = "always"; RestartSec = "200ms"; SyslogIdentifier = "display-manager"; }; }; };}