Clementine-audio-player-Mac.../dist/format.py

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#!/usr/bin/env python2
import argparse
import difflib
import os
import subprocess
import sys
import urllib2
def main():
parser = argparse.ArgumentParser(
description='Reformats C++ source files that have changed from a given '
'git ref.')
parser.add_argument('--url',
default='http://clang.clementine-player.org/format',
help='a URL of a Clang-in-the-cloud service')
parser.add_argument('--ref', default='origin/master',
help='the git-ref to compare against')
parser.add_argument('--extension', action='append', metavar='EXT',
default=['cc', 'cpp', 'h', 'c', 'cxx', 'm', 'mm'],
help='file extensions to reformat')
parser.add_argument('-i', dest='inplace', action='store_true',
help='edit files inplace instead of showing a diff')
parser.add_argument('--files', nargs='*', metavar='FIL',
default=[],
help='get files as arguments insted of git')
args = parser.parse_args()
try:
root_dir = subprocess.check_output([
'git', 'rev-parse', '--show-toplevel']).strip()
except subprocess.CalledProcessError:
# Probably we were not called from a git working directory, just ignore this
# error.
return
changed_files = subprocess.check_output([
'git', 'diff-index', args.ref, '--name-only']).splitlines()
if not changed_files:
print >> sys.stderr, 'No changes from %s' % args.ref
if not args.files and not changed_files:
print >> sys.stderr, "Use --files to select files for reformat"
return
if args.files:
changed_files = args.files
for filename in changed_files:
if not os.path.splitext(filename)[1][1:] in args.extension:
continue
path = os.path.join(root_dir, filename)
if not os.path.exists(path):
# Probably a deletion
continue
original = open(path).read()
response = urllib2.urlopen(args.url, original)
formatted = response.read()
if original == formatted:
print >> sys.stderr, '%s: formatting is correct!' % filename
continue
diff = difflib.unified_diff(
original.split('\n'), formatted.split('\n'),
os.path.join('a', filename), os.path.join('b', filename),
lineterm='')
if args.inplace:
with open(path, 'w') as fh:
fh.write(formatted)
print >> sys.stderr, '%s: %d insertion(s), %d deletion(s)' % (
filename,
sum(1 for x in diff if x.startswith('+')),
sum(1 for x in diff if x.startswith('-')))
else:
print '\n'.join(diff)
if __name__ == '__main__':
main()