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{ config, lib, pkgs, utils, ... }:
with utils;
with systemdUtils.unitOptions;
with lib;
let
cfg = config.systemd.user;
systemd = config.systemd.package;
inherit
(systemdUtils.lib)
makeUnit
generateUnits
targetToUnit
serviceToUnit
sliceToUnit
socketToUnit
timerToUnit
pathToUnit;
upstreamUserUnits = [
"app.slice"
"background.slice"
"basic.target"
"bluetooth.target"
"default.target"
"exit.target"
"graphical-session-pre.target"
"graphical-session.target"
"paths.target"
"printer.target"
"session.slice"
"shutdown.target"
"smartcard.target"
"sockets.target"
"sound.target"
"systemd-exit.service"
"timers.target"
"xdg-desktop-autostart.target"
] ++ config.systemd.additionalUpstreamUserUnits;
in {
options = {
systemd.user.extraConfig = mkOption {
default = "";
type = types.lines;
example = "DefaultCPUAccounting=yes";
description = lib.mdDoc ''
Extra config options for systemd user instances. See man systemd-user.conf for
available options.
'';
};
systemd.user.units = mkOption {
description = lib.mdDoc "Definition of systemd per-user units.";
default = {};
type = systemdUtils.types.units;
};
systemd.user.paths = mkOption {
default = {};
type = systemdUtils.types.paths;
description = lib.mdDoc "Definition of systemd per-user path units.";
};
systemd.user.services = mkOption {
default = {};
type = systemdUtils.types.services;
description = lib.mdDoc "Definition of systemd per-user service units.";
};
systemd.user.slices = mkOption {
default = {};
type = systemdUtils.types.slices;
description = lib.mdDoc "Definition of systemd per-user slice units.";
};
systemd.user.sockets = mkOption {
default = {};
type = systemdUtils.types.sockets;
description = lib.mdDoc "Definition of systemd per-user socket units.";
};
systemd.user.targets = mkOption {
default = {};
type = systemdUtils.types.targets;
description = lib.mdDoc "Definition of systemd per-user target units.";
};
systemd.user.timers = mkOption {
default = {};
type = systemdUtils.types.timers;
description = lib.mdDoc "Definition of systemd per-user timer units.";
};
systemd.additionalUpstreamUserUnits = mkOption {
default = [];
type = types.listOf types.str;
example = [];
description = ''
Additional units shipped with systemd that should be enabled for per-user systemd instances.
'';
internal = true;
};
};
config = {
systemd.additionalUpstreamSystemUnits = [
"user.slice"
];
environment.etc = {
"systemd/user".source = generateUnits {
type = "user";
inherit (cfg) units;
upstreamUnits = upstreamUserUnits;
upstreamWants = [];
};
"systemd/user.conf".text = ''
[Manager]
${cfg.extraConfig}
'';
};
systemd.user.units =
mapAttrs' (n: v: nameValuePair "${n}.path" (pathToUnit n v)) cfg.paths
// mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.services
// mapAttrs' (n: v: nameValuePair "${n}.slice" (sliceToUnit n v)) cfg.slices
// mapAttrs' (n: v: nameValuePair "${n}.socket" (socketToUnit n v)) cfg.sockets
// mapAttrs' (n: v: nameValuePair "${n}.target" (targetToUnit n v)) cfg.targets
// mapAttrs' (n: v: nameValuePair "${n}.timer" (timerToUnit n v)) cfg.timers;
# Generate timer units for all services that have a ‘startAt’ value.
systemd.user.timers =
mapAttrs (name: service: {
wantedBy = ["timers.target"];
timerConfig.OnCalendar = service.startAt;
})
(filterAttrs (name: service: service.startAt != []) cfg.services);
# Provide the systemd-user PAM service, required to run systemd
# user instances.
security.pam.services.systemd-user =
{ # Ensure that pam_systemd gets included. This is special-cased
# in systemd to provide XDG_RUNTIME_DIR.
startSession = true;
# Disable pam_mount in systemd-user to prevent it from being called
# multiple times during login, because it will prevent pam_mount from
# unmounting the previously mounted volumes.
pamMount = false;
};
# Some overrides to upstream units.
systemd.services."user@".restartIfChanged = false;
systemd.services.systemd-user-sessions.restartIfChanged = false; # Restart kills all active sessions.
};
}
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