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#!/usr/bin/env python3
# Copyright 2022 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Validate all C source is formatted with clang-format.
This isn't very useful to users to call directly, but it is run it the
CQ. Most users will likely find out they forgot to clang-format by
the pre-upload checks.
"""
import logging
import pathlib
import subprocess
import sys
from chromite.lib import commandline
def main(argv=None):
"""Find all C files and runs clang-format on them."""
parser = commandline.ArgumentParser()
parser.parse_args(argv)
logging.info("Validating all code is formatted with clang-format.")
ec_dir = pathlib.Path(__file__).resolve().parent.parent
all_files = [
ec_dir / path
for path in subprocess.run(
["git", "ls-files", "-z"],
check=True,
cwd=ec_dir,
stdout=subprocess.PIPE,
encoding="utf-8",
).stdout.split("\0")
if path
]
clang_format_files = []
for path in all_files:
if not path.is_file() or path.is_symlink():
continue
if "third_party" in path.parts:
continue
if path.name.endswith(".c") or path.name.endswith(".h"):
clang_format_files.append(path)
result = subprocess.run(
["clang-format", "--dry-run", *clang_format_files],
check=False,
cwd=ec_dir,
stderr=subprocess.PIPE,
encoding="utf-8",
)
if result.stderr:
logging.error("All C source must be formatted with clang-format!")
for line in result.stderr.splitlines():
logging.error("%s", line)
return 1
if result.returncode != 0:
logging.error("clang-format failed with no output!")
return result.returncode
logging.info("No clang-format issues found!")
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
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