home-manager/modules/programs/readline.nix

93 lines
2.2 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.readline;
mkSetVariableStr = n: v:
let
mkValueStr = v:
if v == true then
"on"
else if v == false then
"off"
else if isInt v then
toString v
else if isString v then
v
else
abort ("values ${toPretty v} is of unsupported type");
in "set ${n} ${mkValueStr v}";
mkBindingStr = k: v:
let
isKeynameNotKeyseq = k:
builtins.elem (builtins.head (lib.splitString "-" (toLower k))) [
"control"
"meta"
];
in if isKeynameNotKeyseq k then "${k}: ${v}" else ''"${k}": ${v}'';
in {
options.programs.readline = {
enable = mkEnableOption "readline";
bindings = mkOption {
default = { };
type = types.attrsOf types.str;
example = literalExpression ''
{ "\\C-h" = "backward-kill-word"; }
'';
description = "Readline bindings.";
};
variables = mkOption {
type = with types; attrsOf (either str (either int bool));
default = { };
example = { expand-tilde = true; };
description = ''
Readline customization variable assignments.
'';
};
includeSystemConfig = mkOption {
type = types.bool;
default = true;
description = "Whether to include the system-wide configuration.";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Configuration lines appended unchanged to the end of the
{file}`~/.inputrc` file.
'';
};
};
config = mkIf cfg.enable (let
finalConfig = let
configStr = concatStringsSep "\n"
(optional cfg.includeSystemConfig "$include /etc/inputrc"
++ mapAttrsToList mkSetVariableStr cfg.variables
++ mapAttrsToList mkBindingStr cfg.bindings);
in ''
# Generated by Home Manager.
${configStr}
${cfg.extraConfig}
'';
in mkMerge [
(mkIf (!config.home.preferXdgDirectories) {
home.file.".inputrc".text = finalConfig;
})
(mkIf config.home.preferXdgDirectories {
xdg.configFile.inputrc.text = finalConfig;
home.sessionVariables.INPUTRC = "${config.xdg.configHome}/inputrc";
})
]);
}