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"""Procedures that operate on files/ directories"""
import hashlib
import os
from functools import partial
def get_dir_hash(directory: str) -> str:
"""Return the hash of a DIRECTORY"""
md5hash = hashlib.md5()
if not os.path.exists(directory):
raise FileNotFoundError
for root, _, files in os.walk(directory):
for names in files:
file_path = os.path.join(root, names)
with open(file_path, "rb") as file_:
for buf in iter(partial(file_.read, 4096), b''):
md5hash.update(bytearray(hashlib.md5(buf).hexdigest(),
"utf-8"))
return md5hash.hexdigest()
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