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######################################################################
#
# File: b2sdk/_internal/scan/folder_parser.py
#
# Copyright 2019 Backblaze Inc. All Rights Reserved.
#
# License https://www.backblaze.com/using_b2_code.html
#
######################################################################
from __future__ import annotations
from .exception import InvalidArgument
from .folder import B2Folder, LocalFolder
def parse_folder(folder_name, api, local_folder_class=LocalFolder, b2_folder_class=B2Folder):
"""
Take either a local path, or a B2 path, and returns a Folder
object for it.
B2 paths look like: b2://bucketName/path/name. The '//' is optional.
Anything else is treated like a local folder.
:param folder_name: a name of the folder, either local or remote
:type folder_name: str
:param api: an API object
:type api: :class:`~b2sdk.v2.B2Api`
:param local_folder_class: class to handle local folders
:type local_folder_class: `~b2sdk.v2.AbstractFolder`
:param b2_folder_class: class to handle B2 folders
:type b2_folder_class: `~b2sdk.v2.AbstractFolder`
"""
if folder_name.startswith('b2://'):
return _parse_bucket_and_folder(folder_name[5:], api, b2_folder_class)
elif folder_name.startswith('b2:') and folder_name[3].isalnum():
return _parse_bucket_and_folder(folder_name[3:], api, b2_folder_class)
else:
return local_folder_class(folder_name)
def _parse_bucket_and_folder(bucket_and_path, api, b2_folder_class):
"""
Turn 'my-bucket/foo' into B2Folder(my-bucket, foo).
"""
if '//' in bucket_and_path:
raise InvalidArgument('folder_name', "'//' not allowed in path names")
if '/' not in bucket_and_path:
bucket_name = bucket_and_path
folder_name = ''
else:
(bucket_name, folder_name) = bucket_and_path.split('/', 1)
if folder_name.endswith('/'):
folder_name = folder_name[:-1]
return b2_folder_class(bucket_name, folder_name, api)
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