translate-shell: add module (#3659)

modules/programs/translate-shell.nix

@@ -0,0 +1,52 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.programs.translate-shell;
+
+  mkKeyValue = key: value:
+    let
+      formatValue = v:
+        if isBool v then
+          (if v then "true" else "false")
+        else if isString v then
+          ''"${v}"''
+        else if isList v then
+          "[ ${concatStringsSep " " (map formatValue v)} ]"
+        else
+          toString v;
+    in ":${key} ${formatValue value}";
+
+  toKeyValue = generators.toKeyValue { inherit mkKeyValue; };
+
+in {
+  meta.maintainers = [ maintainers.marsam ];
+
+  options.programs.translate-shell = {
+    enable = mkEnableOption "translate-shell";
+
+    settings = mkOption {
+      type = with types; attrsOf (oneOf [ bool str (listOf str) ]);
+      default = { };
+      example = {
+        verbose = true;
+        hl = "en";
+        tl = [ "es" "fr" ];
+      };
+      description = ''
+        Options to add to <filename>$XDG_CONFIG_HOME/translate-shell/init.trans</filename> file.
+        See <link xlink:href="https://github.com/soimort/translate-shell/wiki/Configuration"/>
+        for options.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ pkgs.translate-shell ];
+
+    xdg.configFile."translate-shell/init.trans" =
+      mkIf (cfg.settings != { }) { text = "{${toKeyValue cfg.settings}}"; };
+  };
+}