d154317573
If the /etc/os-release file contains comments or spaces python's csv reader will throw an exception. Thus this data must be ripped out prior reading
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
# Copyright (c) 2024 SUSE Software Solutions Germany GmbH. All rights reserved.
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#
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# This file is part of kiwi.
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#
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# kiwi is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# kiwi is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with kiwi. If not, see <http://www.gnu.org/licenses/>
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#
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import csv
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from io import TextIOWrapper
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from typing import Iterable
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# project
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from kiwi.exceptions import KiwiOSReleaseImportError
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class OsRelease:
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"""
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**Read os-release information**
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"""
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def __init__(self, root_dir: str):
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self.data = {}
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os_release = root_dir + '/etc/os-release'
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try:
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with open(os_release) as osdata:
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reader = csv.reader(OsRelease._rip(osdata), delimiter='=')
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self.data = dict(reader)
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except Exception as issue:
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raise KiwiOSReleaseImportError(
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f'Import of {os_release} failed with {issue}'
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)
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@staticmethod
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def _is_comment(line: str) -> bool:
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return line.startswith('#')
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@staticmethod
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def _is_whitespace(line: str) -> bool:
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return line.isspace()
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@staticmethod
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def _rip(csvfile: TextIOWrapper) -> Iterable[str]:
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for row in csvfile:
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if not OsRelease._is_comment(row) \
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and not OsRelease._is_whitespace(row):
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yield row
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def get(self, key: str) -> str:
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"""
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Return value for key or an empty string if not present
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:param string key: key name from os-release
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"""
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return self.data.get(key) or ''
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