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systemd/test/rule-syntax-check.py
Zbigniew Jędrzejewski-Szmek 11a1589223 tree-wide: drop license boilerplate
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.

I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
2018-04-06 18:58:55 +02:00

63 lines
2.2 KiB
Python
Executable File

#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1+
#
# Simple udev rules syntax checker
#
# (C) 2010 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
import re
import sys
import os
from glob import glob
rules_files = sys.argv[1:]
if not rules_files:
sys.exit('Specify files to test as arguments')
quoted_string_re = r'"(?:[^\\"]|\\.)*"'
no_args_tests = re.compile(r'(ACTION|DEVPATH|KERNELS?|NAME|SYMLINK|SUBSYSTEMS?|DRIVERS?|TAG|PROGRAM|RESULT|TEST)\s*(?:=|!)=\s*' + quoted_string_re + '$')
args_tests = re.compile(r'(ATTRS?|ENV|TEST){([a-zA-Z0-9/_.*%-]+)}\s*(?:=|!)=\s*' + quoted_string_re + '$')
no_args_assign = re.compile(r'(NAME|SYMLINK|OWNER|GROUP|MODE|TAG|RUN|LABEL|GOTO|OPTIONS|IMPORT)\s*(?:\+=|:=|=)\s*' + quoted_string_re + '$')
args_assign = re.compile(r'(ATTR|ENV|IMPORT|RUN){([a-zA-Z0-9/_.*%-]+)}\s*(=|\+=)\s*' + quoted_string_re + '$')
# Find comma-separated groups, but allow commas that are inside quoted strings.
# Using quoted_string_re + '?' so that strings missing the last double quote
# will still match for this part that splits on commas.
comma_separated_group_re = re.compile(r'(?:[^,"]|' + quoted_string_re + '?)+')
result = 0
buffer = ''
for path in rules_files:
print('# looking at {}'.format(path))
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
# Separator ',' is normally optional but we make it mandatory here as
# it generally improves the readability of the rules.
for clause_match in comma_separated_group_re.finditer(line):
clause = clause_match.group().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 {}:{}: {}'.format(path, lineno, line))
print(' clause:', clause)
print()
result = 1
break
sys.exit(result)