SERVER-98403 Lint redundant/bad CODEOWNERS rules (#31416)

GitOrigin-RevId: cc41658a1e273216772c363c49b93170d695dbe9

buildscripts/validate_codeowners.py

@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+"""Script for validating CODEOWNERS file."""
+
+import os
+import subprocess
+import sys
+from typing import Annotated
+
+import typer
+
+from buildscripts.download_codeowners_validator import download_validator_binary
+
+
+def get_validator_env() -> dict:
+    """Prepare the environment for the codeowners-validator."""
+    env = os.environ.copy()
+
+    env.update(
+        {
+            "REPOSITORY_PATH": ".",
+            "CHECKS": "duppatterns,syntax",
+            "EXPERIMENTAL_CHECKS": "avoid-shadowing",
+            "OWNER_CHECKER_REPOSITORY": "10gen/mongo",
+        }
+    )
+    return env
+
+
+def run_validator(validator_path: str) -> int:
+    """Run the codeowners validation."""
+    validator_path = os.path.join(os.path.expanduser(validator_path), "codeowners-validator")
+    downloaded_by_current_script = False
+    # If we are running in bazel, default the directory to the workspace
+    workspace_dir = os.environ.get("BUILD_WORKSPACE_DIRECTORY", ".")
+    if workspace_dir:
+        validator_path = os.path.join(workspace_dir, validator_path)
+
+    if not os.path.isfile(validator_path):
+        print(f"Validator not found at {validator_path}, attempting to download...")
+        try:
+            download_validator_binary(os.path.dirname(validator_path))
+            if not os.path.isfile(validator_path):
+                print(
+                    f"Error: Validator still not found at {validator_path} after download attempt",
+                    file=sys.stderr,
+                )
+                return 1
+            downloaded_by_current_script = True
+        except Exception as exc:
+            print(f"Failed to download validator: {str(exc)}", file=sys.stderr)
+            return 1
+
+    print(f"Using validator at: {validator_path}")
+    env = get_validator_env()
+
+    try:
+        result = subprocess.run(
+            [validator_path], env=env, check=True, capture_output=True, text=True
+        )
+        if result.stdout:
+            print(result.stdout)
+        return 0
+    except subprocess.CalledProcessError as exc:
+        if exc.stdout:
+            print(exc.stdout, file=sys.stderr)
+        if exc.stderr:
+            print(exc.stderr, file=sys.stderr)
+        return exc.returncode
+    except FileNotFoundError:
+        print("Error: Failed to run codeowners-validator after installation", file=sys.stderr)
+        return 1
+    finally:
+        if downloaded_by_current_script and os.path.isfile(validator_path):
+            os.remove(validator_path)
+
+
+def main(
+    validator_path: Annotated[
+        str, typer.Option(help="Path to the codeowners-validator binary")
+    ] = "./",
+) -> int:
+    """Validate CODEOWNERS file using codeowners-validator."""
+    return run_validator(validator_path=validator_path)
+
+
+if __name__ == "__main__":
+    typer.run(main)