Chore: Cleanup command arguments and standardize process count handling (#4541)

Cleans up some command help text and adds more control over process count for command with a Pool

src/documents/management/commands/document_index.py

@@ -1,25 +1,22 @@
 from django.core.management import BaseCommand
 from django.db import transaction
 
+from documents.management.commands.mixins import ProgressBarMixin
 from documents.tasks import index_optimize
 from documents.tasks import index_reindex
 
 
-class Command(BaseCommand):
+class Command(ProgressBarMixin, BaseCommand):
     help = "Manages the document index."
 
     def add_arguments(self, parser):
         parser.add_argument("command", choices=["reindex", "optimize"])
-        parser.add_argument(
-            "--no-progress-bar",
-            default=False,
-            action="store_true",
-            help="If set, the progress bar will not be shown",
-        )
+        self.add_argument_progress_bar_mixin(parser)
 
     def handle(self, *args, **options):
+        self.handle_progress_bar_mixin(**options)
         with transaction.atomic():
             if options["command"] == "reindex":
-                index_reindex(progress_bar_disable=options["no_progress_bar"])
+                index_reindex(progress_bar_disable=self.no_progress_bar)
             elif options["command"] == "optimize":
                 index_optimize()