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######################################################################
#
# File: b2sdk/v1/sync/folder.py
#
# Copyright 2021 Backblaze Inc. All Rights Reserved.
#
# License https://www.backblaze.com/using_b2_code.html
#
######################################################################
from __future__ import annotations
from abc import abstractmethod
import functools
from b2sdk import v2
from .scan_policies import DEFAULT_SCAN_MANAGER, wrap_if_necessary
from .. import exception
def translate_errors(func):
@functools.wraps(func)
def wrapper(*a, **kw):
try:
return func(*a, **kw)
except exception.NotADirectory as ex:
raise Exception(f'{ex.path} is not a directory')
except exception.UnableToCreateDirectory as ex:
raise Exception(f'unable to create directory {ex.path}')
except exception.EmptyDirectory as ex:
raise exception.CommandError(
f'Directory {ex.path} is empty. Use --allowEmptySource to sync anyway.'
)
return wrapper
# Override to change "policies_manager" default argument
class AbstractFolder(v2.AbstractFolder):
@abstractmethod
def all_files(self, reporter, policies_manager=DEFAULT_SCAN_MANAGER):
pass
# override to retain "policies_manager" default argument,
# and wrap policies_manager
class B2Folder(v2.B2Folder, AbstractFolder):
def all_files(self, reporter, policies_manager=DEFAULT_SCAN_MANAGER):
return super().all_files(reporter, wrap_if_necessary(policies_manager))
def get_file_versions(self):
for file_version, _ in self.bucket.ls(
self.folder_name,
show_versions=True,
recursive=True,
):
yield file_version
# override to retain "policies_manager" default argument,
# translate nice errors to old style Exceptions and CommandError
# and wrap policies_manager
class LocalFolder(v2.LocalFolder, AbstractFolder):
@translate_errors
def ensure_present(self):
return super().ensure_present()
@translate_errors
def ensure_non_empty(self):
return super().ensure_non_empty()
def all_files(self, reporter, policies_manager=DEFAULT_SCAN_MANAGER):
return super().all_files(reporter, wrap_if_necessary(policies_manager))
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