Source code for donfig.utils

#!/usr/bin/env python
#
# Copyright (c) 2018 Donfig Developers
# Copyright (c) 2014-2018, Anaconda, Inc. and contributors
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os
import shutil
import tempfile
from contextlib import contextmanager, suppress




@contextmanager
def tmpfile(extension="", dir=None):
    extension = "." + extension.lstrip(".")
    handle, filename = tempfile.mkstemp(extension, dir=dir)
    os.close(handle)
    os.remove(filename)

    try:
        yield filename
    finally:
        if os.path.exists(filename):
            if os.path.isdir(filename):
                shutil.rmtree(filename)
            else:
                with suppress(OSError):
                    os.remove(filename)