| #!/usr/bin/env python3 |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # Copyright (C) Google LLC, 2020 |
| # |
| # Author: Nathan Huckleberry <nhuck@google.com> |
| # |
| """A helper routine run clang-tidy and the clang static-analyzer on |
| compile_commands.json. |
| """ |
| |
| import argparse |
| import json |
| import multiprocessing |
| import os |
| import subprocess |
| import sys |
| |
| |
| def parse_arguments(): |
| """Set up and parses command-line arguments. |
| Returns: |
| args: Dict of parsed args |
| Has keys: [path, type] |
| """ |
| usage = """Run clang-tidy or the clang static-analyzer on a |
| compilation database.""" |
| parser = argparse.ArgumentParser(description=usage) |
| |
| type_help = "Type of analysis to be performed" |
| parser.add_argument("type", |
| choices=["clang-tidy", "clang-analyzer"], |
| help=type_help) |
| path_help = "Path to the compilation database to parse" |
| parser.add_argument("path", type=str, help=path_help) |
| |
| return parser.parse_args() |
| |
| |
| def init(l, a): |
| global lock |
| global args |
| lock = l |
| args = a |
| |
| |
| def run_analysis(entry): |
| # Disable all checks, then re-enable the ones we want |
| checks = "-checks=-*," |
| if args.type == "clang-tidy": |
| checks += "linuxkernel-*" |
| else: |
| checks += "clang-analyzer-*" |
| checks += ",-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling" |
| p = subprocess.run(["clang-tidy", "-p", args.path, checks, entry["file"]], |
| stdout=subprocess.PIPE, |
| stderr=subprocess.STDOUT, |
| cwd=entry["directory"]) |
| with lock: |
| sys.stderr.buffer.write(p.stdout) |
| |
| |
| def main(): |
| args = parse_arguments() |
| |
| lock = multiprocessing.Lock() |
| pool = multiprocessing.Pool(initializer=init, initargs=(lock, args)) |
| # Read JSON data into the datastore variable |
| with open(args.path, "r") as f: |
| datastore = json.load(f) |
| pool.map(run_analysis, datastore) |
| |
| |
| if __name__ == "__main__": |
| main() |