feat(cli): add Python generator force argument

src/jcloud_docsgen/cli/cli.py

@@ -82,6 +82,15 @@ def create_argument_parser() -> argparse.ArgumentParser:
         default='docs/reference',
         help='the output directory the documentation will be written to',
     )
+    common_parser.add_argument(
+        '-f',
+        '--force',
+        action='store_true',
+        help=(
+            'generate documentation even if the output directory is not '
+            'empty. Warning: data can be lost when setting this flag.'
+        ),
+    )
 
     argument_parser = argparse.ArgumentParser()
 
@@ -151,6 +160,7 @@ def main(argv=None) -> int:
                 exclude_sections=args.sections_exclude,
                 allow_html=args.allow_html,
                 allow_tables=args.allow_tables,
+                force=args.force,
             )
     except FileNotFoundError as exc:
         return error(f'{exc.filename}: no such file or directory')