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