#!/usr/bin/python """Parse and check syntax errors of a given OWNERS file.""" import argparse import re import sys import urllib import urllib2 parser = argparse.ArgumentParser(description='Check OWNERS file syntax') parser.add_argument('-v', '--verbose', dest='verbose', action='store_true', default=False, help='Verbose output to debug') parser.add_argument('-c', '--check_address', dest='check_address', action='store_true', default=False, help='Check email addresses') parser.add_argument(dest='owners', metavar='OWNERS', nargs='+', help='Path to OWNERS file') args = parser.parse_args() gerrit_server = 'https://android-review.googlesource.com' checked_addresses = {} def echo(msg): if args.verbose: print msg def find_address(address): if address not in checked_addresses: request = (gerrit_server + '/accounts/?n=1&q=email:' + urllib.quote(address)) echo('Checking email address: ' + address) result = urllib2.urlopen(request).read() checked_addresses[address] = result.find('"_account_id":') >= 0 if checked_addresses[address]: echo('Found email address: ' + address) return checked_addresses[address] def check_address(fname, num, address): if find_address(address): return 0 print '%s:%d: ERROR: unknown email address: %s' % (fname, num, address) return 1 def main(): # One regular expression to check all valid lines. noparent = 'set +noparent' email = '([^@ ]+@[^ @]+|\\*)' emails = '(%s( *, *%s)*)' % (email, email) directive = '(%s|%s)' % (emails, noparent) glob = '[a-zA-Z0-9_\\.\\-\\*\\?]+' globs = '(%s( *, *%s)*)' % (glob, glob) perfile = 'per-file +' + globs + ' *= *' + directive include = 'include +([^ :]+ *: *)?[^ ]+' pats = '(|%s|%s|%s|%s)$' % (noparent, email, perfile, include) patterns = re.compile(pats) address_pattern = re.compile('([^@ ]+@[^ @]+)') perfile_pattern = re.compile('per-file +.*=(.*)') error = 0 for fname in args.owners: echo('Checking file: ' + fname) num = 0 for line in open(fname, 'r'): num += 1 stripped_line = re.sub('#.*$', '', line).strip() if not patterns.match(stripped_line): error += 1 print '%s:%d: ERROR: unknown line [%s]' % (fname, num, line.strip()) elif args.check_address: if perfile_pattern.match(stripped_line): for addr in perfile_pattern.match(stripped_line).group(1).split(','): a = addr.strip() if a and a != '*': error += check_address(fname, num, addr.strip()) elif address_pattern.match(stripped_line): error += check_address(fname, num, stripped_line) sys.exit(error) if __name__ == '__main__': main()