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utils.py
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utils.py
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#
# Copyright (c) 2022, Neptune Labs Sp. z o.o.
#
# 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 hashlib
import pathlib
import typing
def sha1(fname: typing.Union[str, pathlib.Path], block_size: int = 2**16) -> str:
sha1sum = hashlib.sha1()
with open(fname, "rb") as source:
block = source.read(block_size)
while len(block) != 0:
sha1sum.update(block)
block = source.read(block_size)
return str(sha1sum.hexdigest())