home-manager/modules/services/screen-locker.nix
Robert Helgesson 5f433eb164
Move platform check into modules
Before, loading a module would be guarded by an optional platform
condition. This made it possible to avoid loading and evaluating a
module if it did not support the host platform.

Unfortunately, this made it impossible to share a single configuration
between GNU/Linux and Darwin hosts, which some wish to do.

This removes the conditional load and instead inserts host platform
assertions in the modules that are platform specific.

Fixes #1906
2021-07-18 20:43:22 +02:00

98 lines
2.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.screen-locker;
in {
options.services.screen-locker = {
enable = mkEnableOption "screen locker for X session";
lockCmd = mkOption {
type = types.str;
description = "Locker command to run.";
example = "\${pkgs.i3lock}/bin/i3lock -n -c 000000";
};
enableDetectSleep = mkOption {
type = types.bool;
default = true;
description = ''
Whether to reset timers when awaking from sleep.
'';
};
inactiveInterval = mkOption {
type = types.int;
default = 10;
description = ''
Inactive time interval in minutes after which session will be locked.
The minimum is 1 minute, and the maximum is 1 hour.
See <link xlink:href="https://linux.die.net/man/1/xautolock"/>.
'';
};
xautolockExtraOptions = mkOption {
type = types.listOf types.str;
default = [ ];
description = ''
Extra command-line arguments to pass to <command>xautolock</command>.
'';
};
xssLockExtraOptions = mkOption {
type = types.listOf types.str;
default = [ ];
description = ''
Extra command-line arguments to pass to <command>xss-lock</command>.
'';
};
};
config = mkIf cfg.enable {
assertions = [
(lib.hm.assertions.assertPlatform "services.screen-locker" pkgs
lib.platforms.linux)
];
systemd.user.services.xautolock-session = {
Unit = {
Description = "xautolock, session locker service";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
Service = {
ExecStart = concatStringsSep " " ([
"${pkgs.xautolock}/bin/xautolock"
"-time ${toString cfg.inactiveInterval}"
"-locker '${pkgs.systemd}/bin/loginctl lock-session $XDG_SESSION_ID'"
] ++ optional cfg.enableDetectSleep "-detectsleep"
++ cfg.xautolockExtraOptions);
};
};
systemd.user.services.xss-lock = {
Unit = {
Description = "xss-lock, session locker service";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
Service = {
ExecStart = concatStringsSep " "
([ "${pkgs.xss-lock}/bin/xss-lock" "-s \${XDG_SESSION_ID}" ]
++ cfg.xssLockExtraOptions ++ [ "-- ${cfg.lockCmd}" ]);
};
};
};
}