#
# Copyright 2021 Canonical Ltd.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License version 3 as published by the Free Software Foundation.
#
# This program 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 this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
"""Parser for /etc/os-release."""
from typing import Dict
[docs]def parse_os_release(content: str) -> Dict[str, str]:
# pylint: disable=line-too-long
"""Parser for /etc/os-release.
Format documentation at:
https://www.freedesktop.org/software/systemd/man/os-release.html
Example os-release contents::
NAME="Ubuntu"
VERSION="20.10 (Groovy Gorilla)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.10"
VERSION_ID="20.10"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=groovy
UBUNTU_CODENAME=groovy
:param content: String contents of os-release file.
:returns: Dictionary of key-mappings found in os-release. Values are
stripped of encapsulating quotes.
"""
mappings: Dict[str, str] = {}
for line in content.splitlines():
line = line.strip()
# Ignore commented lines.
if line.startswith("#"):
continue
# Ignore empty lines.
if not line:
continue
if "=" in line:
key, value = line.split("=", maxsplit=1)
# Strip encapsulating quotes, single or double.
if value.startswith('"') and value.endswith('"'):
value = value[1:-1]
elif value.startswith("'") and value.endswith("'"):
value = value[1:-1]
mappings[key] = value
return mappings