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[utils] Show more verbose verification progress with large files

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derrod 2022-01-03 15:02:19 +01:00
parent cc44149e68
commit d3ea2c6cfd
1 changed files with 28 additions and 2 deletions
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30
legendary/utils/lfs.py
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@ -6,6 +6,7 @@ import hashlib
import logging import logging
from pathlib import Path from pathlib import Path
from sys import stdout
from typing import List, Iterator from typing import List, Iterator
from legendary.models.game import VerifyResult from legendary.models.game import VerifyResult
@ -75,14 +76,16 @@ def delete_filelist(path: str, filenames: List[str],
return no_error return no_error
def validate_files(base_path: str, filelist: List[tuple], hash_type='sha1') -> Iterator[tuple]: def validate_files(base_path: str, filelist: List[tuple], hash_type='sha1',
large_file_threshold=1024 * 1024 * 512) -> Iterator[tuple]:
""" """
Validates the files in filelist in path against the provided hashes Validates the files in filelist in path against the provided hashes
:param base_path: path in which the files are located :param base_path: path in which the files are located
:param filelist: list of tuples in format (path, hash [hex]) :param filelist: list of tuples in format (path, hash [hex])
:param hash_type: (optional) type of hash, default is sha1 :param hash_type: (optional) type of hash, default is sha1
:return: list of files that failed hash check :param large_file_threshold: (optional) threshold for large files, default is 512 MiB
:return: yields tuples in format (VerifyResult, path, hash [hex])
""" """
if not filelist: if not filelist:
@ -99,11 +102,34 @@ def validate_files(base_path: str, filelist: List[tuple], hash_type='sha1') -> I
yield VerifyResult.FILE_MISSING, file_path, '' yield VerifyResult.FILE_MISSING, file_path, ''
continue continue
show_progress = False
try: try:
_size = os.path.getsize(full_path)
if _size > large_file_threshold:
# enable progress indicator and go to new line
stdout.write('\n')
show_progress = True
interval = (_size / (1024 * 1024)) // 100
else:
interval = 0
with open(full_path, 'rb') as f: with open(full_path, 'rb') as f:
real_file_hash = hashlib.new(hash_type) real_file_hash = hashlib.new(hash_type)
i = 0
while chunk := f.read(1024*1024): while chunk := f.read(1024*1024):
real_file_hash.update(chunk) real_file_hash.update(chunk)
if show_progress and i % interval == 0:
pos = f.tell()
perc = (pos / _size) * 100
stdout.write(f'\r=> Verifying large file "{file_path}": {perc:.0f}% '
f'({pos / 1024 / 1024:.1f}/{_size / 1024 / 1024:.1f} MiB)')
stdout.flush()
i += 1
if show_progress:
stdout.write(f'\r=> Verifying large file "{file_path}": 100% '
f'({_size / 1024 / 1024:.1f}/{_size / 1024 / 1024:.1f} MiB)\n')
result_hash = real_file_hash.hexdigest() result_hash = real_file_hash.hexdigest()
if file_hash != result_hash: if file_hash != result_hash: