[yugabyte#13287] Enable codecheck for gen_flags_metadata.py

Summary:
Add gen_flags_metadata.py to codecheck.ini
Use shlex_join in stabilize_auto_flags_list.py

Fixes yugabyte#13287

Test Plan: All builds

Reviewers: jhe

Reviewed By: jhe

Subscribers: ybase

Differential Revision: https://phabricator.dev.yugabyte.com/D20895

build-support/stabilize_auto_flags_list.py

@@ -20,7 +20,7 @@
 import ruamel.yaml  # type: ignore
 
 sys.path.append(os.path.join(os.path.dirname(os.path.dirname(__file__)), 'python'))
-from yb.common_util import YB_SRC_ROOT, create_temp_dir, init_logging  # noqa: E402
+from yb.common_util import YB_SRC_ROOT, create_temp_dir, init_logging, shlex_join  # noqa: E402
 
 
 def main() -> None:
@@ -32,7 +32,7 @@ def main() -> None:
         "--write-build-descriptor", build_desc_path,
         "--skip-java"
     ]
-    logging.info("Running build step:\n%s", ' '.join(build_cmd_list))
+    logging.info("Running build step:\n%s", shlex_join(build_cmd_list))
     try:
         subprocess.run(build_cmd_list, capture_output=True, check=True)
     except subprocess.CalledProcessError as e:

codecheck.ini

@@ -44,6 +44,7 @@ included_regex_list =
     ^python/yb/dep_graph_common[.]py$
     ^python/yb/dependency_graph[.]py$
     ^python/yb/gen_auto_flags_json[.]py$
+    ^python/yb/gen_flags_metadata[.]py$
     ^python/yb/library_packager[.]py$
     ^python/yb/linuxbrew[.]py$
     ^python/yb/lto[.]py$