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3e67e5c992
This is useful on systems like NixOS, where python3 is not in /usr/bin/python3 as well as for people using alternative ways to install python such as virtualenv/pyenv.
74 lines
2.6 KiB
Python
Executable File
74 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# Simple udev rules syntax checker
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#
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# (C) 2010 Canonical Ltd.
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# Author: Martin Pitt <martin.pitt@ubuntu.com>
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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# systemd is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with systemd; If not, see <http://www.gnu.org/licenses/>.
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import re
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import sys
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import os
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from glob import glob
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if len(sys.argv) > 1:
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# explicit rule file list
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rules_files = sys.argv[1:]
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else:
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# take them from the build dir
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root_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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rules_dir = os.path.join(os.environ.get('top_srcdir', root_dir), 'rules')
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if not os.path.isdir(rules_dir):
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sys.stderr.write('No rules files given, and %s does not exist, aborting' % rules_dir)
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sys.exit(2)
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rules_files = glob(os.path.join(rules_dir, '*.rules'))
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no_args_tests = re.compile(r'(ACTION|DEVPATH|KERNELS?|NAME|SYMLINK|SUBSYSTEMS?|DRIVERS?|TAG|RESULT|TEST)\s*(?:=|!)=\s*"([^"]*)"$')
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args_tests = re.compile(r'(ATTRS?|ENV|TEST){([a-zA-Z0-9/_.*%-]+)}\s*(?:=|!)=\s*"([^"]*)"$')
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no_args_assign = re.compile(r'(NAME|SYMLINK|OWNER|GROUP|MODE|TAG|PROGRAM|RUN|LABEL|GOTO|OPTIONS|IMPORT)\s*(?:\+=|:=|=)\s*"([^"]*)"$')
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args_assign = re.compile(r'(ATTR|ENV|IMPORT|RUN){([a-zA-Z0-9/_.*%-]+)}\s*(=|\+=)\s*"([^"]*)"$')
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result = 0
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buffer = ''
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for path in rules_files:
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lineno = 0
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for line in open(path):
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lineno += 1
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# handle line continuation
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if line.endswith('\\\n'):
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buffer += line[:-2]
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continue
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else:
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line = buffer + line
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buffer = ''
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# filter out comments and empty lines
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line = line.strip()
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if not line or line.startswith('#'):
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continue
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for clause in line.split(','):
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clause = clause.strip()
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if not (no_args_tests.match(clause) or args_tests.match(clause) or
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no_args_assign.match(clause) or args_assign.match(clause)):
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print('Invalid line %s:%i: %s' % (path, lineno, line))
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print(' clause: %s' % clause)
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print('')
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result = 1
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break
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sys.exit(result)
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