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#!/usr/bin/env python3
#
# Copyright 2017 Dell Inc.
#
# SPDX-License-Identifier: LGPL-2.1-or-later
#
import os
import sys
import subprocess
import argparse
CLANG_DIFF_FORMATTERS = [
"clang-format-diff-11",
"clang-format-diff-13",
"clang-format-diff",
"/usr/share/clang/clang-format-diff.py",
]
def parse_args():
parser = argparse.ArgumentParser(
description="Reformat C code to match project style",
epilog="Call with no argument to reformat uncommitted code.",
)
parser.add_argument(
"commit", nargs="*", default="", help="Reformat all changes since this commit"
)
parser.add_argument(
"--debug", action="store_true", help="Display all launched commands"
)
return parser.parse_args()
def select_clang_version(formatters):
for formatter in formatters:
try:
ret = subprocess.check_call(
[formatter, "--help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE
)
if ret == 0:
return formatter
except FileNotFoundError:
continue
print("No clang formatter installed")
sys.exit(1)
## Entry Point ##
if __name__ == "__main__":
args = parse_args()
base = os.getenv("GITHUB_BASE_REF")
if base:
base = f"origin/{base}"
else:
if args.commit:
base = args.commit[0]
else:
base = "HEAD"
cmd = ["git", "describe", base]
if args.debug:
print(cmd)
ret = subprocess.run(cmd, capture_output=True)
if ret.returncode:
if args.debug:
print(ret.stderr)
base = "HEAD"
print(f"Reformatting code against {base}")
formatter = select_clang_version(CLANG_DIFF_FORMATTERS)
cmd = ["git", "diff", "-U0", base]
if args.debug:
print(cmd)
ret = subprocess.run(cmd, capture_output=True, text=True)
if ret.returncode:
print(f"Failed to run {cmd}\n{ret.stderr.strip()}")
sys.exit(1)
cmd = [formatter, "-i", "-regex", "^.*\\.(c|h|proto)$", "-p1"]
if args.debug:
print(cmd)
ret = subprocess.run(cmd, input=ret.stdout, capture_output=True, text=True)
if ret.returncode:
print(f"Failed to run {cmd}\n{ret.stderr.strip()}")
sys.exit(1)
sys.exit(0)
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