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|
#!/usr/bin/python3
# encoding=utf-8
#
# Copyright © 2014-2015 Simon McVittie <smcv@debian.org>
# SPDX-License-Identifier: GPL-2.0-or-later
import logging
import re
from .paths import CONFIG
logger = logging.getLogger(__name__)
COMMENT = re.compile(r'#.*')
OPTION = re.compile('^([A-Z_]+)=(["\']?)(.*)\\2$')
def read_config() -> dict[str, bool | str]:
"""The world's simplest shell script parser.
"""
config: dict[str, bool | str] = {
'install': False,
'preserve': True,
'verbose': False,
'install_method': '',
'gain_root_command': '',
}
try:
with open(CONFIG, encoding='utf-8') as conffile:
lineno = 0
for line in conffile:
lineno += 1
line = COMMENT.sub('', line)
line = line.strip()
if not line:
continue
match = OPTION.match(line)
if match:
k = match.group(1).lower()
v = match.group(3)
if k in config:
if v == 'yes':
config[k] = True
elif v == 'no':
config[k] = False
elif k in ('install_method', 'gain_root_command'):
config[k] = v
else:
logger.warning(
'%s:%d: unknown option value: %s=%r',
CONFIG, lineno, k, v,
)
else:
logger.warning(
'%s:%d: unknown option: %s',
CONFIG, lineno, k,
)
else:
logger.warning(
'%s:%d: could not parse line: %r',
CONFIG, lineno, line,
)
except OSError:
pass
return config
|
