home-manager/modules/programs/kitty.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.kitty;
eitherStrBoolInt = with types; either str (either bool int);
optionalPackage = opt:
optional (opt != null && opt.package != null) opt.package;
toKittyConfig = generators.toKeyValue {
mkKeyValue = key: value:
let
value' = if isBool value then
(if value then "yes" else "no")
else
toString value;
in "${key} ${value'}";
};
toKittyKeybindings = generators.toKeyValue {
mkKeyValue = key: command: "map ${key} ${command}";
};
toKittyEnv =
generators.toKeyValue { mkKeyValue = name: value: "env ${name}=${value}"; };
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in {
options.programs.kitty = {
enable = mkEnableOption "Kitty terminal emulator";
package = mkOption {
type = types.package;
default = pkgs.kitty;
defaultText = literalExpression "pkgs.kitty";
description = ''
Kitty package to install.
'';
};
darwinLaunchOptions = mkOption {
type = types.nullOr (types.listOf types.str);
default = null;
description = "Command-line options to use when launched by Mac OS GUI";
example = literalExpression ''
[
"--single-instance"
"--directory=/tmp/my-dir"
"--listen-on=unix:/tmp/my-socket"
]
'';
};
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settings = mkOption {
type = types.attrsOf eitherStrBoolInt;
default = { };
example = literalExpression ''
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{
scrollback_lines = 10000;
enable_audio_bell = false;
update_check_interval = 0;
}
'';
description = ''
Configuration written to
<filename>$XDG_CONFIG_HOME/kitty/kitty.conf</filename>. See
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<link xlink:href="https://sw.kovidgoyal.net/kitty/conf.html" />
for the documentation.
'';
};
theme = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Apply a Kitty color theme. This option takes the friendly name of
any theme given by the command <command>kitty +kitten themes</command>.
See <link xlink:href="https://github.com/kovidgoyal/kitty-themes"/>
for more details.
'';
example = "Space Gray Eighties";
};
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font = mkOption {
type = types.nullOr hm.types.fontType;
default = null;
description = "The font to use.";
};
keybindings = mkOption {
type = types.attrsOf types.str;
default = { };
description = "Mapping of keybindings to actions.";
example = literalExpression ''
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{
"ctrl+c" = "copy_or_interrupt";
"ctrl+f>2" = "set_font_size 20";
}
'';
};
environment = mkOption {
type = types.attrsOf types.str;
default = { };
description = "Environment variables to set or override.";
example = literalExpression ''
{
"LS_COLORS" = "1";
}
'';
};
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extraConfig = mkOption {
default = "";
type = types.lines;
description = "Additional configuration to add.";
};
};
config = mkIf cfg.enable {
assertions = [{
assertion = (cfg.darwinLaunchOptions != null)
-> pkgs.stdenv.hostPlatform.isDarwin;
message = ''
The 'programs.kitty.darwinLaunchOptions' option is only available on darwin.
'';
}];
home.packages = [ cfg.package ] ++ optionalPackage cfg.font;
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xdg.configFile."kitty/kitty.conf" = {
text = ''
# Generated by Home Manager.
# See https://sw.kovidgoyal.net/kitty/conf.html
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${optionalString (cfg.font != null) ''
font_family ${cfg.font.name}
${optionalString (cfg.font.size != null)
"font_size ${toString cfg.font.size}"}
''}
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${optionalString (cfg.theme != null) ''
include ${pkgs.kitty-themes}/${
(head (filter (x: x.name == cfg.theme) (builtins.fromJSON
(builtins.readFile "${pkgs.kitty-themes}/themes.json")))).file
}
''}
${toKittyConfig cfg.settings}
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${toKittyKeybindings cfg.keybindings}
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${toKittyEnv cfg.environment}
${cfg.extraConfig}
'';
} // optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
onChange = ''
${pkgs.procps}/bin/pkill -USR1 -u $USER kitty || true
'';
};
xdg.configFile."kitty/macos-launch-services-cmdline" =
mkIf (cfg.darwinLaunchOptions != null) {
text = concatStringsSep " " cfg.darwinLaunchOptions;
};
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};
}