118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
# coding: utf-8
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import hashlib
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import logging
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import os
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import shutil
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from typing import List, Iterator
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from custom_legendary.models.game import VerifyResult
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logger = logging.getLogger('LFS Utils')
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def delete_folder(path: str, recursive=True) -> bool:
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try:
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logger.debug(f'Deleting "{path}", recursive={recursive}...')
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if not recursive:
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os.removedirs(path)
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else:
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shutil.rmtree(path)
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except Exception as e:
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logger.error(f'Failed deleting files with {e!r}')
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return False
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else:
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return True
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def delete_filelist(path: str, filenames: List[str],
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delete_root_directory: bool = False,
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silent: bool = False) -> bool:
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dirs = set()
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no_error = True
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# delete all files that were installed
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for filename in filenames:
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_dir, _fn = os.path.split(filename)
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if _dir:
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dirs.add(_dir)
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try:
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os.remove(os.path.join(path, _dir, _fn))
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except Exception as e:
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if not silent:
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logger.error(f'Failed deleting file {filename} with {e!r}')
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no_error = False
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# add intermediate directories that would have been missed otherwise
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for _dir in sorted(dirs):
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head, _ = os.path.split(_dir)
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while head:
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dirs.add(head)
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head, _ = os.path.split(head)
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# remove all directories
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for _dir in sorted(dirs, key=len, reverse=True):
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try:
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os.rmdir(os.path.join(path, _dir))
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except FileNotFoundError:
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# directory has already been deleted, ignore that
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continue
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except Exception as e:
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if not silent:
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logger.error(f'Failed removing directory "{_dir}" with {e!r}')
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no_error = False
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if delete_root_directory:
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try:
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os.rmdir(path)
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except Exception as e:
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if not silent:
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logger.error(f'Removing game directory failed with {e!r}')
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return no_error
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def validate_files(base_path: str, filelist: List[tuple], hash_type='sha1') -> Iterator[tuple]:
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"""
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Validates the files in filelist in path against the provided hashes
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:param base_path: path in which the files are located
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:param filelist: list of tuples in format (path, hash [hex])
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:param hash_type: (optional) type of hash, default is sha1
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:return: list of files that failed hash check
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"""
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if not filelist:
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raise ValueError('No files to validate!')
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if not os.path.exists(base_path):
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raise OSError('Path does not exist')
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for file_path, file_hash in filelist:
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full_path = os.path.join(base_path, file_path)
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# logger.debug(f'Checking "{file_path}"...')
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if not os.path.exists(full_path):
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yield VerifyResult.FILE_MISSING, file_path, ''
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continue
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try:
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with open(full_path, 'rb') as f:
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real_file_hash = hashlib.new(hash_type)
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while chunk := f.read(1024 * 1024):
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real_file_hash.update(chunk)
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result_hash = real_file_hash.hexdigest()
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if file_hash != result_hash:
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yield VerifyResult.HASH_MISMATCH, file_path, result_hash
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else:
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yield VerifyResult.HASH_MATCH, file_path, result_hash
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except Exception as e:
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logger.fatal(f'Could not verify "{file_path}"; opening failed with: {e!r}')
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yield VerifyResult.OTHER_ERROR, file_path, ''
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def clean_filename(filename):
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return ''.join(i for i in filename if i not in '<>:"/\\|?*')
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