83 lines
2.4 KiB
Python
Executable File
83 lines
2.4 KiB
Python
Executable File
#!/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 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.append("-checks=-*")
|
|
if args.type == "clang-tidy":
|
|
checks.append("linuxkernel-*")
|
|
else:
|
|
checks.append("clang-analyzer-*")
|
|
checks.append("-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
|
|
p = subprocess.run(["clang-tidy", "-p", args.path, ",".join(checks), entry["file"]],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
cwd=entry["directory"])
|
|
with lock:
|
|
sys.stderr.buffer.write(p.stdout)
|
|
|
|
|
|
def main():
|
|
try:
|
|
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)
|
|
except BrokenPipeError:
|
|
# Python flushes standard streams on exit; redirect remaining output
|
|
# to devnull to avoid another BrokenPipeError at shutdown
|
|
devnull = os.open(os.devnull, os.O_WRONLY)
|
|
os.dup2(devnull, sys.stdout.fileno())
|
|
sys.exit(1) # Python exits with error code 1 on EPIPE
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|