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