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Copy pathtemp_file.py
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55 lines (46 loc) · 1.86 KB
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# Copyright 2020 The SQLFlow Authors. All rights reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import shutil
import tempfile
# NOTE: Python 2 does not have tempfile.TemporaryDirectory. To unify the code
# of Python 2 and 3, we make the following class.
class TemporaryDirectory(object):
def __init__(self, as_cwd=False, suffix=None, prefix=None, dir=None):
"""
Create a temporary directory.
Args:
as_cwd (bool): whether to change the current working directory
as the created temporary directory.
suffix (str): the suffix of the created temporary directory.
prefix (str): the prefix of the created temporary directory.
dir (str): where to create the temporary directory.
"""
if suffix is None:
suffix = ""
if prefix is None:
prefix = ""
if dir is None:
dir = "/tmp"
self.tmp_dir = tempfile.mkdtemp(suffix=suffix, prefix=prefix, dir=dir)
self.as_cwd = as_cwd
if self.as_cwd:
self.old_dir = os.getcwd()
def __enter__(self, *args, **kwargs):
if self.as_cwd:
os.chdir(self.tmp_dir)
return self.tmp_dir
def __exit__(self, *args, **kwargs):
if self.as_cwd:
os.chdir(self.old_dir)
shutil.rmtree(self.tmp_dir, ignore_errors=True)