1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6
7 cfg = config.programs.htop;
8
9 fmt = value:
10 if isList value then concatStringsSep " " (map fmt value) else
11 if isString value then value else
12 if isBool value then if value then "1" else "0" else
13 if isInt value then toString value else
14 throw "Unrecognized type ${typeOf value} in htop settings";
15
16in
17
18{
19
20 options.programs.htop = {
21 package = mkOption {
22 type = types.package;
23 default = pkgs.htop;
24 defaultText = lib.literalExpression "pkgs.htop";
25 description = lib.mdDoc ''
26 The htop package that should be used.
27 '';
28 };
29
30 enable = mkEnableOption (lib.mdDoc "htop process monitor");
31
32 settings = mkOption {
33 type = with types; attrsOf (oneOf [ str int bool (listOf (oneOf [ str int bool ])) ]);
34 default = {};
35 example = {
36 hide_kernel_threads = true;
37 hide_userland_threads = true;
38 };
39 description = lib.mdDoc ''
40 Extra global default configuration for htop
41 which is read on first startup only.
42 Htop subsequently uses ~/.config/htop/htoprc
43 as configuration source.
44 '';
45 };
46 };
47
48 config = mkIf cfg.enable {
49 environment.systemPackages = [
50 cfg.package
51 ];
52
53 environment.etc."htoprc".text = ''
54 # Global htop configuration
55 # To change set: programs.htop.settings.KEY = VALUE;
56 '' + concatStringsSep "\n" (mapAttrsToList (key: value: "${key}=${fmt value}") cfg.settings);
57 };
58
59}