# Simple udev rules syntax checker # # (C) 2010 Canonical Ltd. # Author: Martin Pitt <martin.pitt@ubuntu.com> # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # systemd is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with systemd; If not, see <http://www.gnu.org/licenses/>. import re import sys import os from glob import glob if len(sys.argv) > 1: # explicit rule file list rules_files = sys.argv[1:] else: # take them from the build dir root_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) rules_dir = os.path.join(os.environ.get('top_srcdir', root_dir), 'rules') if not os.path.isdir(rules_dir): sys.stderr.write('No rules files given, and %s does not exist, aborting' % rules_dir) sys.exit(2) rules_files = glob(os.path.join(rules_dir, '*.rules')) no_args_tests = re.compile('(ACTION|DEVPATH|KERNELS?|NAME|SYMLINK|SUBSYSTEMS?|DRIVERS?|TAG|RESULT|TEST)\s*(?:=|!)=\s*"([^"]*)"$') args_tests = re.compile('(ATTRS?|ENV|TEST){([a-zA-Z0-9/_.*%-]+)}\s*(?:=|!)=\s*"([^"]*)"$') no_args_assign = re.compile('(NAME|SYMLINK|OWNER|GROUP|MODE|TAG|PROGRAM|RUN|LABEL|GOTO|OPTIONS|IMPORT)\s*(?:\+=|:=|=)\s*"([^"]*)"$') args_assign = re.compile('(ATTR|ENV|IMPORT|RUN){([a-zA-Z0-9/_.*%-]+)}\s*(=|\+=)\s*"([^"]*)"$') result = 0 buffer = '' for path in rules_files: lineno = 0 for line in open(path): lineno += 1 # handle line continuation if line.endswith('\\\n'): buffer += line[:-2] continue else: line = buffer + line buffer = '' # filter out comments and empty lines line = line.strip() if not line or line.startswith('#'): continue for clause in line.split(','): clause = clause.strip() if not (no_args_tests.match(clause) or args_tests.match(clause) or no_args_assign.match(clause) or args_assign.match(clause)): print('Invalid line %s:%i: %s' % (path, lineno, line)) print(' clause: %s' % clause) print('') result = 1 break sys.exit(result)