nixpkgs/nixos/modules/programs/nix-index.nix
2022-12-25 22:53:26 +01:00

63 lines
2.0 KiB
Nix

{ config, lib, pkgs, ... }:
let
cfg = config.programs.nix-index;
in {
options.programs.nix-index = with lib; {
enable = mkEnableOption (lib.mdDoc "nix-index, a file database for nixpkgs");
package = mkOption {
type = types.package;
default = pkgs.nix-index;
defaultText = literalExpression "pkgs.nix-index";
description = lib.mdDoc "Package providing the `nix-index` tool.";
};
enableBashIntegration = mkEnableOption (lib.mdDoc "Bash integration") // {
default = true;
};
enableZshIntegration = mkEnableOption (lib.mdDoc "Zsh integration") // {
default = true;
};
enableFishIntegration = mkEnableOption (lib.mdDoc "Fish integration") // {
default = true;
};
};
config = lib.mkIf cfg.enable {
assertions = let
checkOpt = name: {
assertion = cfg.${name} -> !config.programs.command-not-found.enable;
message = ''
The 'programs.command-not-found.enable' option is mutually exclusive
with the 'programs.nix-index.${name}' option.
'';
};
in [ (checkOpt "enableBashIntegration") (checkOpt "enableZshIntegration") ];
environment.systemPackages = [ cfg.package ];
programs.bash.interactiveShellInit = lib.mkIf cfg.enableBashIntegration ''
source ${cfg.package}/etc/profile.d/command-not-found.sh
'';
programs.zsh.interactiveShellInit = lib.mkIf cfg.enableZshIntegration ''
source ${cfg.package}/etc/profile.d/command-not-found.sh
'';
# See https://github.com/bennofs/nix-index/issues/126
programs.fish.interactiveShellInit = let
wrapper = pkgs.writeScript "command-not-found" ''
#!${pkgs.bash}/bin/bash
source ${cfg.package}/etc/profile.d/command-not-found.sh
command_not_found_handle "$@"
'';
in lib.mkIf cfg.enableFishIntegration ''
function __fish_command_not_found_handler --on-event fish_command_not_found
${wrapper} $argv
end
'';
};
}