home-manager/modules/programs/htop.nix
Bart Bakker e60dca7bb3
htop: fix htoprc when fields is not explicitly set
When the 'fields' setting is not set in htoprc, the htop program won't read any
of the settings. Provide a default value for fields in case it's not explicitly
set by the user.
2021-08-16 23:20:32 +02:00

172 lines
3.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.htop;
formatOption = n: v:
let v' = if isBool v then (if v then "1" else "0") else toString v;
in "${n}=${v'}";
formatMeters = side: meters: {
"${side}_meters" = concatMap (mapAttrsToList (x: _: x)) meters;
"${side}_meter_modes" = concatMap (mapAttrsToList (_: y: y)) meters;
};
leftMeters = formatMeters "left";
rightMeters = formatMeters "right";
fields = {
PID = 0;
COMM = 1;
STATE = 2;
PPID = 3;
PGRP = 4;
SESSION = 5;
TTY_NR = 6;
TPGID = 7;
MINFLT = 9;
MAJFLT = 11;
PRIORITY = 17;
NICE = 18;
STARTTIME = 20;
PROCESSOR = 37;
M_SIZE = 38;
M_RESIDENT = 39;
ST_UID = 45;
PERCENT_CPU = 46;
PERCENT_MEM = 47;
USER = 48;
TIME = 49;
NLWP = 50;
TGID = 51;
CMINFLT = 10;
CMAJFLT = 12;
UTIME = 13;
STIME = 14;
CUTIME = 15;
CSTIME = 16;
M_SHARE = 40;
M_TRS = 41;
M_DRS = 42;
M_LRS = 43;
M_DT = 44;
CTID = 99;
VPID = 100;
VXID = 102;
RCHAR = 102;
WCHAR = 103;
SYSCR = 104;
SYSCW = 105;
RBYTES = 106;
WBYTES = 107;
CNCLWB = 108;
IO_READ_RATE = 109;
IO_WRITE_RATE = 110;
IO_RATE = 111;
CGROUP = 112;
OOM = 113;
IO_PRIORITY = 114;
M_PSS = 118;
M_SWAP = 119;
M_PSSWP = 120;
};
modes = {
Bar = 1;
Text = 2;
Graph = 3;
LED = 4;
};
# Utilities for constructing meters
meter = mode: name: { ${name} = mode; };
bar = meter modes.Bar;
text = meter modes.Text;
graph = meter modes.Graph;
led = meter modes.LED;
blank = text "Blank";
in {
meta.maintainers = [ maintainers.bjpbakker ];
options.programs.htop = {
enable = mkEnableOption "htop";
settings = mkOption {
type = types.attrs;
default = { };
example = literalExample ''
{
color_scheme = 6;
cpu_count_from_one = 0;
delay = 15;
fields = with config.lib.htop.fields; [
PID
USER
PRIORITY
NICE
M_SIZE
M_RESIDENT
M_SHARE
STATE
PERCENT_CPU
PERCENT_MEM
TIME
COMM
];
highlight_base_name = 1;
highlight_megabytes = 1;
highlight_threads = 1;
} // (with config.lib.htop; leftMeters [
(bar "AllCPUs2")
(bar "Memory")
(bar "Swap")
(text "Zram")
]) // (with config.lib.htop; rightMeters [
(text "Tasks")
(text "LoadAverage")
(text "Uptime")
(text "Systemd")
]);
'';
description = ''
Configuration options to add to
<filename>~/.config/htop/htoprc</filename>.
'';
};
};
config = mkIf cfg.enable {
lib.htop = {
inherit fields modes leftMeters rightMeters bar text graph led blank;
};
home.packages = [ pkgs.htop ];
xdg.configFile."htop/htoprc" = let
defaults = {
fields = with fields; [
PID
USER
PRIORITY
NICE
M_SIZE
M_RESIDENT
M_SHARE
STATE
PERCENT_CPU
PERCENT_MEM
TIME
COMM
];
};
in mkIf (cfg.settings != { }) {
text = concatStringsSep "\n"
(mapAttrsToList formatOption (defaults // cfg.settings)) + "\n";
};
};
}