1 { config, pkgs, lib, ... }:
3 inherit (lib) mapAttrs' nameValuePair filterAttrs types mkEnableOption
4 mkPackageOption mkOption literalExpression mkIf flatten
5 maintainers attrValues;
7 cfg = config.services.autosuspend;
9 settingsFormat = pkgs.formats.ini { };
13 (n: v: nameValuePair "check.${n}" (filterAttrs (_: v: v != null) v))
17 (n: v: nameValuePair "wakeup.${n}" (filterAttrs (_: v: v != null) v))
20 # Whether the given check is enabled
23 (n: v: v.enabled && (if v.class == null then n else v.class) == class)
27 # Dependencies needed by specific checks
28 dependenciesForChecks = {
30 "XIdleTime" = [ pkgs.xprintidle pkgs.sudo ];
34 settingsFormat.generate "autosuspend.conf" ({ general = cfg.settings; } // checks // wakeups);
36 autosuspend = cfg.package;
38 checkType = types.submodule {
39 freeformType = settingsFormat.type.nestedTypes.elemType;
41 options.enabled = mkEnableOption "this activity check" // { default = true; };
43 options.class = mkOption {
45 type = with types; nullOr (enum [
65 Name of the class implementing the check. If this option is not specified, the check's
66 name must represent a valid internal check class.
71 wakeupType = types.submodule {
72 freeformType = settingsFormat.type.nestedTypes.elemType;
74 options.enabled = mkEnableOption "this wake-up check" // { default = true; };
76 options.class = mkOption {
78 type = with types; nullOr (enum [
88 Name of the class implementing the check. If this option is not specified, the check's
89 name must represent a valid internal check class.
96 services.autosuspend = {
97 enable = mkEnableOption "the autosuspend daemon";
99 package = mkPackageOption pkgs "autosuspend" { };
101 settings = mkOption {
102 type = types.submodule {
103 freeformType = settingsFormat.type.nestedTypes.elemType;
106 # Provide reasonable defaults for these two (required) options
107 suspend_cmd = mkOption {
108 default = "systemctl suspend";
109 type = with types; str;
111 The command to execute in case the host shall be suspended. This line can contain
112 additional command line arguments to the command to execute.
115 wakeup_cmd = mkOption {
116 default = ''sh -c 'echo 0 > /sys/class/rtc/rtc0/wakealarm && echo {timestamp:.0f} > /sys/class/rtc/rtc0/wakealarm' '';
117 type = with types; str;
119 The command to execute for scheduling a wake up of the system. The given string is
120 processed using Python’s `str.format()` and a format argument called `timestamp`
121 encodes the UTC timestamp of the planned wake up time (float). Additionally `iso`
122 can be used to acquire the timestamp in ISO 8601 format.
128 example = literalExpression ''
136 Configuration for autosuspend, see
137 <https://autosuspend.readthedocs.io/en/latest/configuration_file.html#general-configuration>
138 for supported values.
144 type = with types; attrsOf checkType;
146 Checks for activity. For more information, see:
147 - <https://autosuspend.readthedocs.io/en/latest/configuration_file.html#activity-check-configuration>
148 - <https://autosuspend.readthedocs.io/en/latest/available_checks.html>
150 example = literalExpression ''
152 # Basic activity check configuration.
153 # The check class name is derived from the section header (Ping in this case).
154 # Remember to enable desired checks. They are disabled by default.
156 hosts = "192.168.0.7";
159 # This check is disabled.
162 # Example for a custom check name.
163 # This will use the Users check with the custom name RemoteUsers.
164 # Custom names are necessary in case a check class is used multiple times.
165 # Custom names can also be used for clarification.
173 # Here the Users activity check is used again with different settings and a different name
186 type = with types; attrsOf wakeupType;
188 Checks for wake up. For more information, see:
189 - <https://autosuspend.readthedocs.io/en/latest/configuration_file.html#wake-up-check-configuration>
190 - <https://autosuspend.readthedocs.io/en/latest/available_wakeups.html>
192 example = literalExpression ''
194 # Wake up checks reuse the same configuration mechanism as activity checks.
196 url = "http://example.org/test.ics";
204 config = mkIf cfg.enable {
205 systemd.services.autosuspend = {
206 description = "A daemon to suspend your server in case of inactivity";
207 documentation = [ "https://autosuspend.readthedocs.io/en/latest/systemd_integration.html" ];
208 wantedBy = [ "multi-user.target" ];
209 after = [ "network.target" ];
210 path = flatten (attrValues (filterAttrs (n: _: hasCheck n) dependenciesForChecks));
212 ExecStart = ''${autosuspend}/bin/autosuspend -l ${autosuspend}/etc/autosuspend-logging.conf -c ${autosuspend-conf} daemon'';
216 systemd.services.autosuspend-detect-suspend = {
217 description = "Notifies autosuspend about suspension";
218 documentation = [ "https://autosuspend.readthedocs.io/en/latest/systemd_integration.html" ];
219 wantedBy = [ "sleep.target" ];
220 after = [ "sleep.target" ];
222 ExecStart = ''${autosuspend}/bin/autosuspend -l ${autosuspend}/etc/autosuspend-logging.conf -c ${autosuspend-conf} presuspend'';
228 maintainers = with maintainers; [ xlambein ];