test/rule-syntax-check.py

   1 #!/usr/bin/python
   2 # Simple udev rules syntax checker
   3 #
   4 # (C) 2010 Canonical Ltd.
   5 # Author: Martin Pitt <martin.pitt@ubuntu.com>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License along
  18 # with this program; if not, write to the Free Software Foundation, Inc.,
  19 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20
  21 import re
  22 import sys
  23
  24 if len(sys.argv) < 2:
  25     print >> sys.stderr, 'Usage: %s <rules file> [...]' % sys.argv[0]
  26     sys.exit(2)
  27
  28 no_args_tests = re.compile('(ACTION|DEVPATH|KERNELS?|NAME|SYMLINK|SUBSYSTEMS?|DRIVERS?|TAG|RESULT|TEST)\s*(?:=|!)=\s*"([^"]*)"$')
  29 args_tests = re.compile('(ATTRS?|ENV|TEST){([a-zA-Z0-9/_.*%-]+)}\s*(?:=|!)=\s*"([^"]*)"$')
  30 no_args_assign = re.compile('(NAME|SYMLINK|OWNER|GROUP|MODE|TAG|PROGRAM|RUN|LABEL|GOTO|WAIT_FOR|OPTIONS|IMPORT)\s*(?:\+=|:=|=)\s*"([^"]*)"$')
  31 args_assign = re.compile('(ATTR|ENV|IMPORT|RUN){([a-zA-Z0-9/_.*%-]+)}\s*(=|\+=)\s*"([^"]*)"$')
  32
  33 result = 0
  34 buffer = ''
  35 for path in sys.argv[1:]:
  36     lineno = 0
  37     for line in open(path):
  38         lineno += 1
  39
  40         # handle line continuation
  41         if line.endswith('\\\n'):
  42             buffer += line[:-2]
  43             continue
  44         else:
  45             line = buffer + line
  46             buffer = ''
  47
  48         # filter out comments and empty lines
  49         line = line.strip()
  50         if not line or line.startswith('#'):
  51             continue
  52
  53         for clause in line.split(','):
  54             clause = clause.strip()
  55             if not (no_args_tests.match(clause) or args_tests.match(clause) or
  56                     no_args_assign.match(clause) or args_assign.match(clause)):
  57
  58                 print('Invalid line %s:%i: %s' % (path, lineno, line))
  59                 print('  clause:', clause)
  60                 print()
  61                 result = 1
  62                 break
  63
  64 sys.exit(result)