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# Copyright (c) 2024 SUSE Software Solutions Germany GmbH. All rights reserved.
#
# This file is part of kiwi.
#
# kiwi is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# kiwi 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with kiwi. If not, see <http://www.gnu.org/licenses/>
#
import csv
import os
from io import TextIOWrapper
from typing import Iterable
# project
from kiwi.exceptions import KiwiEnvImportError
class ToEnv:
"""
**Read env file and merge with os.environ**
"""
def __init__(self, root_dir: str, envfile: str):
self.data = {}
env_file = f'{root_dir}/{envfile}'
if os.path.isfile(env_file):
try:
with open(env_file) as osdata:
reader = csv.reader(ToEnv._rip(osdata), delimiter='=')
self.data = dict(reader)
except Exception as issue:
raise KiwiEnvImportError(
f'Import of {envfile} failed with {issue}'
)
if self.data:
os.environ.update(self.data)
@staticmethod
def _is_comment(line: str) -> bool:
return line.startswith('#')
@staticmethod
def _is_whitespace(line: str) -> bool:
return line.isspace()
@staticmethod
def _rip(csvfile: TextIOWrapper) -> Iterable[str]:
for row in csvfile:
if not ToEnv._is_comment(row) \
and not ToEnv._is_whitespace(row):
yield row
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