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#!/usr/bin/env python
'''
Wrapper script for clang-format
Copyright (c) 2015 MarcoFalke
Copyright (c) 2015 The Bitcoin Core developers
Distributed under the MIT software license, see the accompanying
file COPYING or http://www.opensource.org/licenses/mit-license.php.
'''
import os
import sys
import subprocess
tested_versions = ['3.6.0', '3.6.1', '3.6.2'] # A set of versions known to produce the same output
accepted_file_extensions = ('.h', '.cpp') # Files to format
def check_clang_format_version(clang_format_exe):
try:
output = subprocess.check_output([clang_format_exe, '-version'])
for ver in tested_versions:
if ver in output:
print "Detected clang-format version " + ver
return
raise RuntimeError("Untested version: " + output)
except Exception as e:
print 'Could not verify version of ' + clang_format_exe + '.'
raise e
def check_command_line_args(argv):
required_args = ['{clang-format-exe}', '{files}']
example_args = ['clang-format-3.x', 'src/main.cpp', 'src/wallet/*']
if(len(argv) < len(required_args) + 1):
for word in (['Usage:', argv[0]] + required_args):
print word,
print ''
for word in (['E.g:', argv[0]] + example_args):
print word,
print ''
sys.exit(1)
def run_clang_format(clang_format_exe, files):
for target in files:
if os.path.isdir(target):
for path, dirs, files in os.walk(target):
run_clang_format(clang_format_exe, (os.path.join(path, f) for f in files))
elif target.endswith(accepted_file_extensions):
print "Format " + target
subprocess.check_call([clang_format_exe, '-i', '-style=file', target], stdout=open(os.devnull, 'wb'), stderr=subprocess.STDOUT)
else:
print "Skip " + target
def main(argv):
check_command_line_args(argv)
clang_format_exe = argv[1]
files = argv[2:]
check_clang_format_version(clang_format_exe)
run_clang_format(clang_format_exe, files)
if __name__ == "__main__":
main(sys.argv)
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