nixpkgs/nixos/modules/services/x11/window-managers/i3.nix

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{ config, lib, pkgs, ... }:
with lib;
let
wmCfg = config.services.xserver.windowManager;
i3option = name: {
enable = mkEnableOption name;
configFile = mkOption {
default = null;
type = types.nullOr types.path;
description = ''
Path to the i3 configuration file.
If left at the default value, $HOME/.i3/config will be used.
'';
};
};
i3config = name: pkg: cfg: {
services.xserver.windowManager.session = [{
inherit name;
start = ''
${pkg}/bin/i3 ${optionalString (cfg.configFile != null)
"-c \"${cfg.configFile}\""
} &
waitPID=$!
'';
}];
environment.systemPackages = [ pkg ];
};
in
{
options.services.xserver.windowManager = {
i3 = i3option "i3";
i3-gaps = i3option "i3-gaps";
};
config = mkMerge [
(mkIf wmCfg.i3.enable (i3config "i3" pkgs.i3 wmCfg.i3))
(mkIf wmCfg.i3-gaps.enable (i3config "i3-gaps" pkgs.i3-gaps wmCfg.i3-gaps))
];
}