home-manager/modules/programs/kitty.nix
polykernel c7592b747b
treewide: prefer XDG variables over dot directories
Currently, dot directories and XDG base directories are used
inconsistently in the Home Manager option declarations. This creates
ambiguity for the user as to where the location of the file should be
albeit this is rarely encountered in practice as it is sufficient to
read upstream documentation. The rationale is to make declarations
consistent and make a clear distinction between hardcoded and modular
specifications.

References to ~/.config in relevant nixpkgs modules were untouched as
the location is hardcoded upstream[1]. Furthermore, modules of
programs which do not follow XDG specifications were also untouched.

Generalization of tilde(~) expansions to $HOME were also considered,
however there isn't sufficient rationale despite the use of $HOME
being more universal. The expansion is standardized in POSIX[2] and is
essentially portable across all shells, thus there is no pragmatic
value to introducing the change.

[1] https://github.com/nixos/nixpkgs/blob/master/pkgs/top-level/impure.nix
[2] https://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_01
2021-12-10 23:51:44 +01:00

144 lines
3.6 KiB
Nix

{ 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}"; };
in {
options.programs.kitty = {
enable = mkEnableOption "Kitty terminal emulator";
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"
]
'';
};
settings = mkOption {
type = types.attrsOf eitherStrBoolInt;
default = { };
example = literalExpression ''
{
scrollback_lines = 10000;
enable_audio_bell = false;
update_check_interval = 0;
}
'';
description = ''
Configuration written to
<filename>$XDG_CONFIG_HOME/kitty/kitty.conf</filename>. See
<link xlink:href="https://sw.kovidgoyal.net/kitty/conf.html" />
for the documentation.
'';
};
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 ''
{
"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";
}
'';
};
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 = [ pkgs.kitty ] ++ optionalPackage cfg.font;
xdg.configFile."kitty/kitty.conf" = {
text = ''
# Generated by Home Manager.
# See https://sw.kovidgoyal.net/kitty/conf.html
${optionalString (cfg.font != null) ''
font_family ${cfg.font.name}
${optionalString (cfg.font.size != null)
"font_size ${toString cfg.font.size}"}
''}
${toKittyConfig cfg.settings}
${toKittyKeybindings cfg.keybindings}
${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;
};
};
}