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folder_hash_compare.py
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folder_hash_compare.py
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# this code is still WIP
import os
import sys
import hashlib
import zlib
import logging
import time
import argparse
from multiprocessing.pool import ThreadPool
parser = argparse.ArgumentParser(
prog='folder_hash_compare.py',
description='Compares the hashes of all files in 2 folders',
epilog='Folder Hash Compare - https://github.com/jooleer/folder-hash-compare')
parser.add_argument('-p', '--primary', help='Primary directory, f.e. -p \"C:\\folder1\\\" or -p \"/home/user/dir1\"')
parser.add_argument('-s', '--secondary', help='Secondary directory, f.e. -s \"D:\\folder2\\\" or -s \"/home/user/dir2\"')
parser.add_argument('-d', '--disable', action='store_true', help='Disable multithreading (recommended when both directories are on the same drive)')
parser.add_argument('-m', '--missing', action='store_true', help='Search for missing files in secondary directory')
parser.add_argument('-v', '--verbose', action='store_true', help='Enables verbose logging')
parser.add_argument('-c', '--custom', action='store_true', help='Use custom/hardcoded variables in stead of -p -s command-line arguments')
args = parser.parse_args()
# define the paths of the two directories to compare
if(args.custom):
folder1_path = r""
folder2_path = r""
if(args.verbose):
print(f"Comparing:\n{folder1_path}\nagainst:\n{folder2_path}\n")
else:
if(not args.primary) or (not args.secondary):
sys.exit("No primary or secondary folder given, use -h for help")
folder1_path = args.primary
folder2_path = args.secondary
if(args.verbose):
print(f"Comparing:\n{folder1_path}\nagainst:\n{folder2_path}\n")
# hash algorythm (CRC32, MD5, SHA256)
hash_algorithm = "CRC32"
# text markup
class bcolors:
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKCYAN = '\033[96m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
#generate hash value of file
def generate_file_hash(file_path, hash_algorithm="CRC32"):
with open(file_path, "rb") as f:
# sys.stdout.write("Processing file %d of %d (%d%%)\r\n\033[K" % (files, files_amount, (files/files_amount)*100) )
# sys.stdout.write("Generating hash for file: %s\r\033[F" % (file_path) )
sys.stdout.flush()
file_data = f.read()
if hash_algorithm == "CRC32":
file_hash = zlib.crc32(file_data)
elif hash_algorithm == "MD5":
file_hash = hashlib.md5(file_data).hexdigest()
elif hash_algorithm == "SHA256":
file_hash = hashlib.sha256(file_data).hexdigest()
return file_hash
# get a list of all files in a folder and its subfolders
def get_all_files(folder_path):
global files_amount
all_files = []
for root, dirs, files in os.walk(folder_path):
for filename in files:
file_path = os.path.join(root, filename)
all_files.append(file_path)
return all_files
# get amount of files in a folder and its subfolders
def get_files_amount(folder_path):
files_amount = 0
for root, dirs, files in os.walk(folder_path):
for filename in files:
files_amount += 1
return files_amount
# generate hash values for each file in folder_path
def folder_generate_hashes(folder_path):
folder_hashes = {}
for file_path in get_all_files(folder_path):
file_hash = generate_file_hash(file_path, hash_algorithm)
relative_path = os.path.relpath(file_path, folder_path)
folder_hashes[relative_path] = file_hash
if(args.verbose):
print(f"Generated hash for: {file_path} [{file_hash}]")
logging.info(f"[HASH]: {file_path} -> {file_hash}")
return folder_hashes
# convert seconds to hours, minutes, seconds
def seconds_to_minutes(seconds):
minutes, seconds = divmod(seconds, 60)
hours, minutes = divmod(minutes, 60)
return hours, minutes, seconds
def main():
files_completed = 0
files_errors = 0
files_missing = 0
# set logging file parameter
if not os.path.isdir("logs"):
os.makedirs("logs")
logging.basicConfig(filename="logs/log_"+str(time.time())+".txt", level=logging.INFO)
# start time
start = time.time()
f1_amount = get_files_amount(folder1_path)
f2_amount = get_files_amount(folder2_path)
# multithreading
if(args.disable):
# run without multithreading
if(args.verbose):
print(bcolors.UNDERLINE + "Running jobs without multithreading" + bcolors.ENDC)
folder1_hashes = folder_generate_hashes(folder1_path)
folder2_hashes = folder_generate_hashes(folder2_path)
else:
# use multithreading
if(args.verbose):
print(bcolors.UNDERLINE + "Running jobs with multithreading" + bcolors.ENDC)
pool = ThreadPool(processes=2)
async_result1 = pool.apply_async(folder_generate_hashes, args = (folder1_path, ))
async_result2 = pool.apply_async(folder_generate_hashes, args = (folder2_path, ))
# close and join pools
pool.close()
pool.join()
# get the return value from your function.
folder1_hashes = async_result1.get()
folder2_hashes = async_result2.get()
if(args.missing):
# check for missing files in folder 1
# for file_path in get_all_files(folder2_path):
# relative_path = os.path.relpath(file_path, folder2_path)
# if relative_path not in folder1_hashes:
# if(args.verbose):
# print(bcolors.WARNING + f"{relative_path} is missing from {folder1_path}." + bcolors.ENDC)
# logging.info(f"[WARNING - MISSING FILE]: {relative_path}")
# files_missing += 1
# check for missing files in folder 2
for file_path in get_all_files(folder1_path):
relative_path = os.path.relpath(file_path, folder1_path)
if relative_path not in folder2_hashes:
if(args.verbose):
print(bcolors.WARNING + f"{relative_path} is missing from {folder2_path}." + bcolors.ENDC)
logging.info(f"[WARNING - MISSING FILE]: {relative_path}")
files_missing += 1
# compare the hash values for each file in both folders
for relative_path in set(folder1_hashes.keys()).intersection(set(folder2_hashes.keys())):
if folder1_hashes[relative_path] != folder2_hashes[relative_path]:
if(args.verbose):
print(bcolors.FAIL + f"Hash values for {relative_path} do not match." + bcolors.ENDC)
logging.error(f"[ERROR]: FILE HASH MISMATCH FOR: {relative_path} ({folder1_hashes[relative_path]} <> {folder2_hashes[relative_path]}")
files_errors += 1
else:
if(args.verbose):
print(bcolors.OKGREEN + f"Hash values for {relative_path} match." + bcolors.ENDC)
logging.info(f"[OK]: {relative_path}")
files_completed += 1
end = time.time()
total_time = end - start
files_amount = f1_amount + f2_amount
# process output information
if total_time > 60:
ct = seconds_to_minutes(total_time)
print(f"Process finished in {round(ct[0])} hours, {round(ct[1])} minutes, {round(ct[2])} seconds")
else:
print("\nProcess finished in {:.2f}".format(round((total_time), 2)) + " seconds")
print(f"Processed {files_amount} file(s): "
+ bcolors.OKGREEN + f"\n{files_completed} file(s) OK" + bcolors.ENDC
+ bcolors.FAIL + f"\n{files_errors} file(s) FAILED" + bcolors.ENDC
+ bcolors.WARNING + f"\n{files_missing} file(s) MISSING" + bcolors.ENDC)
if __name__ == '__main__':
main()