assets: update to pnpm, rspack configuration

* since rspack configuration is not more in webpack.config.js this is
  necessary

invenio_cli/commands/assets.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2020 CERN.
+# Copyright (C) 2025 Graz University of Technology.
 #
 # Invenio-Cli is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -9,9 +10,11 @@
 
 
 import subprocess
+import sys
 from pathlib import Path
 
 import click
+from flask_webpackext.project import PNPMPackage
 from pynpm import NPMPackage
 
 from ..helpers import env
@@ -27,10 +30,15 @@ def __init__(self, cli_config):
         """Constructor."""
         super().__init__(cli_config)
 
-    @staticmethod
-    def _module_pkg(path):
+    def _module_pkg(self, path):
         """NPM package for the given path."""
-        return NPMPackage(Path(path) / "package.json")
+        if self.cli_config.javascript_packages_manager == "npm":
+            return NPMPackage(Path(path) / "package.json")
+        elif self.cli_config.javascript_packages_manager == "pnpm":
+            return PNPMPackage(Path(path) / "package.json")
+        else:
+            print("please configure javascript package manager.")
+            sys.exit()
 
     def _assets_pkg(self):
         """NPM package for the instance's webpack project."""
@@ -73,8 +81,7 @@ def _npm_install_command(path):
             )
         else:
             return ProcessResponse(
-                error=f"Unable to install dependent packages. "
-                "Got error code {status_code}",
+                error=f"Unable to install dependent packages. Got error code {status_code}",
                 status_code=status_code,
             )
 
@@ -104,7 +111,8 @@ def _assets_link(assets_pkg, module_pkg):
         status_code = assets_pkg.link(module_name)
         if status_code == 0:
             return ProcessResponse(
-                output="Global module linked correctly to local folder", status_code=0
+                output="Global module linked correctly to local folder",
+                status_code=0,
             )
         else:
             return ProcessResponse(
@@ -115,8 +123,21 @@ def _assets_link(assets_pkg, module_pkg):
     def watch_assets(self):
         """High-level command to watch assets for changes."""
         # Commands
-        prefix = ["pipenv", "run"]
-        watch_cmd = prefix + ["invenio", "webpack", "run", "start"]
+        if self.cli_config.python_packages_manager == "uv":
+            prefix = ["uv", "run"]
+        elif self.cli_config.python_packages_manager == "pip":
+            prefix = ["pipenv", "run"]
+        else:
+            print("please configure python package manager.")
+            sys.exit()
+
+        if self.cli_config.assets_builder == "webpack":
+            watch_cmd = prefix + ["invenio", "webpack", "run", "start"]
+        elif self.cli_config.assets_builder == "rspack":
+            watch_cmd = prefix + ["invenio", "webpack", "run", "start-rspack"]
+        else:
+            print("please configure assets builder.")
+            sys.exit()
 
         with env(FLASK_ENV="development"):
             # Collect into statics/ and assets/ folder