luarocks-packages-updater: support initial maintainer

Allow passing `--maintainers` to add the maintainers for a new package
creation.

doc/languages-frameworks/lua.section.md

@@ -167,9 +167,12 @@ To add a new package without updating all packages, run
 ```sh
 
 nix-shell -p luarocks-packages-updater
-luarocks-packages-updater add <package-name>
+luarocks-packages-updater add [--maintainers "<maintainer>"] <package-name>
 ```
 
+The optional `--maintainers` argument accepts a space-separated list of nixpkgs maintainer names.
+When omitted, the package is added without maintainers.
+
 [luarocks2nix](https://github.com/nix-community/luarocks) is a tool capable of generating nix derivations from both rockspec and src.rock (and favors the src.rock).
 The automation only goes so far though and some packages need to be customized.
 These customizations go in [pkgs/development/lua-modules/overrides.nix](https://github.com/NixOS/nixpkgs/tree/master/pkgs/development/lua-modules/overrides.nix).

pkgs/by-name/lu/luarocks-packages-updater/updater.py

@@ -182,6 +182,13 @@ class LuaEditor(nixpkgs_plugin_update.Editor):
         parser.set_defaults(proc=1, update_only=None)
         return parser
 
+    def configure_add_parser(self, parser):
+        parser.add_argument(
+            "--maintainers",
+            default="",
+            help="Space-separated nixpkgs maintainer names to add to each package",
+        )
+
     def get_current_plugins(self, _config: FetchConfig, _nixpkgs: str):
         return []
 
@@ -340,7 +347,7 @@ class LuaEditor(nixpkgs_plugin_update.Editor):
                 "server": "",
                 "version": "",
                 "luaversion": "",
-                "maintainers": "",
+                "maintainers": args.maintainers,
             }
             existing_entries.append(new_entry)
 

pkgs/development/python-modules/nixpkgs-plugin-update/nixpkgs-plugin-update/src/nixpkgs_plugin_update/__init__.py

@@ -1037,6 +1037,9 @@ class Editor:
     def rewrite_input(self, *args, **kwargs):
         return rewrite_input(*args, **kwargs)
 
+    def configure_add_parser(self, _parser: argparse.ArgumentParser) -> None:
+        """Add updater-specific arguments to the add subcommand."""
+
     def create_parser(self):
         common = argparse.ArgumentParser(
             add_help=False,
@@ -1122,6 +1125,7 @@ class Editor:
             nargs="+",
             help=f"Plugin to add to {self.attr_path} from Github in the form owner/repo",
         )
+        self.configure_add_parser(padd)
 
         pupdate = subparsers.add_parser(
             "update",