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nixpkgs/nixos/modules/services/misc/ananicy.nix

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Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.ananicy;
configFile = pkgs.writeText "ananicy.conf" (generators.toKeyValue { } cfg.settings);
extraRules = pkgs.writeText "extraRules" cfg.extraRules;
servicename = if ((lib.getName cfg.package) == (lib.getName pkgs.ananicy-cpp)) then "ananicy-cpp" else "ananicy";
in
{
options = {
services.ananicy = {
enable = mkEnableOption "Ananicy, an auto nice daemon";
package = mkOption {
type = types.package;
default = pkgs.ananicy;
defaultText = literalExpression "pkgs.ananicy";
example = literalExpression "pkgs.ananicy-cpp";
description = ''
Which ananicy package to use.
'';
};
settings = mkOption {
type = with types; attrsOf (oneOf [ int bool str ]);
default = { };
example = {
apply_nice = false;
};
description = ''
See <link xlink:href="https://github.com/Nefelim4ag/Ananicy/blob/master/ananicy.d/ananicy.conf"/>
'';
};
extraRules = mkOption {
type = types.str;
default = "";
description = ''
Extra rules in json format on separate lines. See:
<link xlink:href="https://github.com/Nefelim4ag/Ananicy#configuration"/>
<link xlink:href="https://gitlab.com/ananicy-cpp/ananicy-cpp/#global-configuration"/>
'';
example = literalExpression ''
'''
{ "name": "eog", "type": "Image-View" }
{ "name": "fdupes", "type": "BG_CPUIO" }
'''
'';
};
};
};
config = mkIf cfg.enable {
environment = {
systemPackages = [ cfg.package ];
etc."ananicy.d".source = pkgs.runCommandLocal "ananicyfiles" { } ''
mkdir -p $out
# ananicy-cpp does not include rules or settings on purpose
cp -r ${pkgs.ananicy}/etc/ananicy.d/* $out
rm $out/ananicy.conf
cp ${configFile} $out/ananicy.conf
${optionalString (cfg.extraRules != "") "cp ${extraRules} $out/nixRules.rules"}
'';
};
# ananicy and ananicy-cpp have different default settings
services.ananicy.settings =
let
mkOD = mkOptionDefault;
in
{
cgroup_load = mkOD true;
type_load = mkOD true;
rule_load = mkOD true;
apply_nice = mkOD true;
apply_ioclass = mkOD true;
apply_ionice = mkOD true;
apply_sched = mkOD true;
apply_oom_score_adj = mkOD true;
apply_cgroup = mkOD true;
} // (if ((lib.getName cfg.package) == (lib.getName pkgs.ananicy-cpp)) then {
# https://gitlab.com/ananicy-cpp/ananicy-cpp/-/blob/master/src/config.cpp#L12
loglevel = mkOD "warn"; # default is info but its spammy
cgroup_realtime_workaround = mkOD config.systemd.enableUnifiedCgroupHierarchy;
} else {
# https://github.com/Nefelim4ag/Ananicy/blob/master/ananicy.d/ananicy.conf
check_disks_schedulers = mkOD true;
check_freq = mkOD 5;
});
systemd = {
# https://gitlab.com/ananicy-cpp/ananicy-cpp/#cgroups applies to both ananicy and -cpp
enableUnifiedCgroupHierarchy = mkDefault false;
packages = [ cfg.package ];
services."${servicename}" = {
wantedBy = [ "default.target" ];
};
};
};
meta = {
maintainers = with maintainers; [ artturin ];
};
}