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nixos/systemd: add an option to suppress system units

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This commit is contained in:
Jan Malakhovski 2019-04-18 10:40:48 +00:00
parent 9289a39a69
commit 0017a06717
1 changed files with 16 additions and 1 deletions
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17
nixos/modules/system/boot/systemd.nix
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@ -742,6 +742,18 @@ in
'';
};
systemd.suppressedSystemUnits = mkOption {
default = [ ];
type = types.listOf types.str;
example = [ "systemd-backlight@.service" ];
description = ''
A list of units to suppress when generating system systemd configuration directory. This has
priority over upstream units, <option>systemd.units</option>, and
<option>systemd.additionalUpstreamSystemUnits</option>. The main purpose of this is to
suppress a upstream systemd unit with any modifications made to it by other NixOS modules.
'';
};
};
@ -771,8 +783,11 @@ in
done;
${concatStrings (mapAttrsToList (generator: target: "ln -s ${target} $out/${generator};\n") cfg.generators)}
'';
enabledUpstreamSystemUnits = filter (n: ! elem n cfg.suppressedSystemUnits) upstreamSystemUnits;
enabledUnits = filterAttrs (n: v: ! elem n cfg.suppressedSystemUnits) cfg.units;
in ({
"systemd/system".source = generateUnits "system" cfg.units upstreamSystemUnits upstreamSystemWants;
"systemd/system".source = generateUnits "system" enabledUnits enabledUpstreamSystemUnits upstreamSystemWants;
"systemd/user".source = generateUnits "user" cfg.user.units upstreamUserUnits [];