def unpack(file_system: FileSystem, package_path: str,
extraction_path: str) -> Dict[str, List[str]]:
contents = {
'resources': [],
'headers': [],
'libraries': [],
'libraries_interfaces': [],
'symbols_tables': [],
'executables': []
}
with file_system.open_tarfile(package_path, 'r:gz') as archive:
for member in archive.getmembers():
if member.isfile():
extracted = False
for root, files in contents.items():
if common_path(
[normalized_path(member.name),
normalized_path(root)]) == root:
archive.extract(member, extraction_path)
files.append(join(extraction_path, member.name))
extracted = True
if not extracted and member.name != 'Pralinefile':
raise InvalidPackageContentsError(
f"unrecognized file '{member.name}' in package")
for header in contents['headers']:
with file_system.open_file(header, 'rb') as f:
text = f.read().decode()
with file_system.open_file(header, 'wb') as f:
f.write(text.replace('PRALINE_EXPORT', 'PRALINE_IMPORT').encode())
return contents
def pralinefile_from_path(file_system : FileSystem, path: str, skip_validation=False) -> Dict[str, Any]:
with file_system.open_file(path, 'r') as reader:
return pralinefile_from_reader(reader)
def hash_file(file_system: FileSystem, file_path: str) -> str:
hasher = hashlib.sha3_256()
with file_system.open_file(file_path, 'rb') as f:
for chunk in iter(lambda: f.read(4096), b''):
hasher.update(chunk)
return hasher.hexdigest()