mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-25 17:25:08 +02:00
ce7b69ff31
The idea is that scripts directly under Meta are meant to be run by people. Scripts that are only imported or run by other scripts are moved to a subdirectory.
83 lines
2.4 KiB
Python
Executable File
83 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2021, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
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# Copyright (c) 2026-present, the Ladybird developers.
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#
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# SPDX-License-Identifier: BSD-2-Clause
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import argparse
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import sys
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from collections import defaultdict
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from pathlib import Path
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from typing import Dict
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from typing import List
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sys.path.append(str(Path(__file__).resolve().parent.parent))
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from Utils.utils import string_hash
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ENDPOINT_PREFIX = "endpoint "
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def main() -> int:
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parser = argparse.ArgumentParser(description="Check IPC endpoint files for magic-number collisions.")
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parser.add_argument("ipc_files", nargs="+", help="IPC endpoint definition files")
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args = parser.parse_args()
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files_by_magic: Dict[int, List[str]] = defaultdict(list)
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error_count = 0
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def report_error(message: str) -> None:
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nonlocal error_count
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print(f"Error: {message}", file=sys.stderr)
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error_count += 1
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for path in args.ipc_files:
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endpoint_name = ""
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try:
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with open(path, "r", encoding="utf-8") as ipc_file:
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for line in ipc_file:
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line = line.strip()
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if not line.startswith(ENDPOINT_PREFIX):
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continue
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remaining = line[len(ENDPOINT_PREFIX) :]
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if endpoint_name:
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report_error(f"Multiple endpoints in file '{path}': Found {endpoint_name} and {remaining}")
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continue
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endpoint_name = remaining
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except OSError as error:
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report_error(f"Cannot open '{path}': {error}")
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continue
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if not endpoint_name:
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report_error(f"Could not detect endpoint name in file '{path}'")
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continue
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files_by_magic[string_hash(endpoint_name)].append(path)
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for magic, files in files_by_magic.items():
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if len(files) <= 1:
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continue
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report_error(f"Collision: Multiple endpoints use the magic number {magic}:")
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for colliding_file in files:
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print(f" - {colliding_file}")
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print(f"Checked {len(args.ipc_files)} files, saw {len(files_by_magic)} distinct magic numbers.")
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if error_count:
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print(
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"Some errors were encountered. There may be endpoints with colliding magic numbers.",
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file=sys.stderr,
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)
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return error_count
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if __name__ == "__main__":
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sys.exit(main())
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