antidote: add module

Antidote is a Zsh plugin manager.

modules/programs/antidote.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.programs.zsh.antidote;
+
+  relToDotDir = file:
+    (optionalString (config.programs.zsh.dotDir != null)
+      (config.programs.zsh.dotDir + "/")) + file;
+
+  zPluginStr = with lib;
+    (pluginNames:
+      optionalString (pluginNames != [ ]) "${concatStrings (map (name: ''
+        ${name}
+      '') pluginNames)}");
+in {
+  meta.maintainers = [ maintainers.hitsmaxft ];
+
+  options.programs.zsh.antidote = {
+    enable = mkEnableOption "antidote - a zsh plugin manager";
+
+    plugins = mkOption {
+      type = types.listOf types.str;
+      default = [ ];
+      example = [ "zsh-users/zsh-autosuggestions" ];
+      description = "List of antidote plugins.";
+    };
+
+    useFriendlyNames = mkEnableOption "friendly names";
+
+    package = mkPackageOption pkgs "antidote" { };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ cfg.package ];
+
+    home.file."${relToDotDir ".zsh_plugins.txt"}".text = zPluginStr cfg.plugins;
+
+    ### move zsh_plugins.txt
+    programs.zsh.initExtraBeforeCompInit = ''
+      ## home-manager/antidote begin :
+      source ${cfg.package}/antidote.zsh
+      ${optionalString cfg.useFriendlyNames
+      "zstyle ':antidote:bundle' use-friendly-names 'yes'"}
+      bundlefile=${relToDotDir ".zsh_plugins.txt"}
+      zstyle ':antidote:bundle' file $bundlefile
+      staticfile=${relToDotDir ".zsh_plugins.zsh"}
+      zstyle ':antidote:static' file $staticfile
+      antidote load $bundlefile $staticfile
+      ## home-manager/antidote end
+    '';
+  };
+}