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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.xsuspender;
xsuspenderOptions = types.submodule {
options = {
matchWmClassContains = mkOption {
description = "Match windows that wm class contains string.";
type = types.nullOr types.str;
default = null;
};
matchWmClassGroupContains = mkOption {
description = "Match windows where wm class group contains string.";
type = types.nullOr types.str;
default = null;
};
matchWmNameContains = mkOption {
description = "Match windows where wm name contains string.";
type = types.nullOr types.str;
default = null;
};
suspendDelay = mkOption {
description = "Initial suspend delay in seconds.";
type = types.int;
default = 5;
};
resumeEvery = mkOption {
description = "Resume interval in seconds.";
type = types.int;
default = 50;
};
resumeFor = mkOption {
description = "Resume duration in seconds.";
type = types.int;
default = 5;
};
execSuspend = mkOption {
description = ''
Before suspending, execute this shell script. If it fails,
abort suspension.
'';
type = types.nullOr types.str;
default = null;
example = ''echo "suspending window $XID of process $PID"'';
};
execResume = mkOption {
description = ''
Before resuming, execute this shell script. Resume the
process regardless script failure.
'';
type = types.nullOr types.str;
default = null;
example = "echo resuming ...";
};
sendSignals = mkOption {
description = ''
Whether to send SIGSTOP / SIGCONT signals or not.
If false just the exec scripts are run.
'';
type = types.bool;
default = true;
};
suspendSubtreePattern = mkOption {
description =
"Also suspend descendant processes that match this regex.";
type = types.nullOr types.str;
default = null;
};
onlyOnBattery = mkOption {
description = "Whether to enable process suspend only on battery.";
type = types.bool;
default = false;
};
autoSuspendOnBattery = mkOption {
description = ''
Whether to auto-apply rules when switching to battery
power even if the window(s) didn't just lose focus.
'';
type = types.bool;
default = true;
};
downclockOnBattery = mkOption {
description = ''
Limit CPU consumption for this factor when on battery power.
Value 1 means 50% decrease, 2 means 66%, 3 means 75% etc.
'';
type = types.int;
default = 0;
};
};
};
in {
meta.maintainers = [ maintainers.offline ];
options = {
services.xsuspender = {
enable = mkEnableOption "XSuspender";
defaults = mkOption {
description = "XSuspender defaults.";
type = xsuspenderOptions;
default = { };
};
rules = mkOption {
description = "Attribute set of XSuspender rules.";
type = types.attrsOf xsuspenderOptions;
default = { };
example = {
Chromium = {
suspendDelay = 10;
matchWmClassContains = "chromium-browser";
suspendSubtreePattern = "chromium";
};
};
};
debug = mkOption {
description = "Whether to enable debug output.";
type = types.bool;
default = false;
};
iniContent = mkOption {
type = types.attrsOf types.attrs;
internal = true;
};
};
};
config = mkIf cfg.enable {
services.xsuspender.iniContent = let
mkSection = values:
filterAttrs (_: v: v != null) {
match_wm_class_contains = values.matchWmClassContains;
match_wm_class_group_contains = values.matchWmClassGroupContains;
match_wm_name_contains = values.matchWmNameContains;
suspend_delay = values.suspendDelay;
resume_every = values.resumeEvery;
resume_for = values.resumeFor;
exec_suspend = values.execSuspend;
exec_resume = values.execResume;
send_signals = values.sendSignals;
suspend_subtree_pattern = values.suspendSubtreePattern;
only_on_battery = values.onlyOnBattery;
auto_suspend_on_battery = values.autoSuspendOnBattery;
downclock_on_battery = values.downclockOnBattery;
};
in {
Default = mkSection cfg.defaults;
} // mapAttrs (_: mkSection) cfg.rules;
# To make the xsuspender tool available.
home.packages = [ pkgs.xsuspender ];
xdg.configFile."xsuspender.conf".text = generators.toINI { } cfg.iniContent;
systemd.user.services.xsuspender = {
Unit = {
Description = "XSuspender";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
X-Restart-Triggers =
[ "${config.xdg.configFile."xsuspender.conf".source}" ];
};
Service = {
ExecStart = "${pkgs.xsuspender}/bin/xsuspender";
Environment = mkIf cfg.debug [ "G_MESSAGE_DEBUG=all" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
};
}
|
