29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
54 lines
806 B
Nix
54 lines
806 B
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.gpm;
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in
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{
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###### interface
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options = {
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services.gpm = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable GPM, the General Purpose Mouse daemon,
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which enables mouse support in virtual consoles.
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'';
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};
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protocol = mkOption {
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type = types.str;
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default = "ps/2";
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description = "Mouse protocol to use.";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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jobs.gpm =
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{ description = "General purpose mouse";
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startOn = "started udev";
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exec = "${pkgs.gpm}/sbin/gpm -m /dev/input/mice -t ${cfg.protocol} -D &>/dev/null";
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};
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};
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}
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