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https://github.com/nix-community/home-manager
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3b799f6ea4
`nix-index` is a tool to quickly locate the package providing a certain file in `nixpkgs`. It indexes built derivations found in binary caches. This module adds the shell integration for its `command-not-found` script for interactive shells.
63 lines
1.9 KiB
Nix
63 lines
1.9 KiB
Nix
{ config, lib, pkgs, ... }:
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let cfg = config.programs.nix-index;
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in {
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meta.maintainers = with lib.hm.maintainers; [ ambroisie ];
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options.programs.nix-index = with lib; {
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enable = mkEnableOption "nix-index, a file database for nixpkgs";
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package = mkOption {
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type = types.package;
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default = pkgs.nix-index;
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defaultText = literalExample "pkgs.nix-index";
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description = "Package providing the <command>nix-index</command> tool.";
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};
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enableBashIntegration = mkEnableOption "Bash integration" // {
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default = true;
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};
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enableZshIntegration = mkEnableOption "Zsh integration" // {
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default = true;
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};
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enableFishIntegration = mkEnableOption "Fish integration" // {
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default = true;
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};
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};
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config = lib.mkIf cfg.enable {
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assertions = let
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checkOpt = name: {
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assertion = cfg.${name} -> !config.programs.command-not-found.enable;
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message = ''
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The 'programs.command-not-found.enable' option is mutually exclusive
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with the 'programs.nix-index.${name}' option.
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'';
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};
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in [ (checkOpt "enableBashIntegration") (checkOpt "enableZshIntegration") ];
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home.packages = [ cfg.package ];
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programs.bash.initExtra = lib.mkIf cfg.enableBashIntegration ''
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source ${cfg.package}/etc/profile.d/command-not-found.sh
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'';
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programs.zsh.initExtra = lib.mkIf cfg.enableZshIntegration ''
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source ${cfg.package}/etc/profile.d/command-not-found.sh
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'';
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# See https://github.com/bennofs/nix-index/issues/126
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programs.fish.shellInit = let
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wrapper = pkgs.writeScript "command-not-found" ''
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#!${pkgs.bash}/bin/bash
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source ${cfg.package}/etc/profile.d/command-not-found.sh
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command_not_found_handle "$@"
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'';
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in lib.mkIf cfg.enableFishIntegration ''
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function __fish_command_not_found_handler --on-event fish_command_not_found
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${wrapper} $argv
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end
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'';
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};
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}
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