84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
import os
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from ...cloudpath import CloudImplementation
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from ...exceptions import MissingCredentialsError
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from ..localclient import LocalClient
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from ..localpath import LocalPath
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local_azure_blob_implementation = CloudImplementation()
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"""Replacement for "azure" CloudImplementation meta object in
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cloudpathlib.implementation_registry"""
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class LocalAzureBlobClient(LocalClient):
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"""Replacement for AzureBlobClient that uses the local file system. Intended as a monkeypatch
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substitute when writing tests.
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"""
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_cloud_meta = local_azure_blob_implementation
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def __init__(self, *args, **kwargs):
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cred_opts = [
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kwargs.get("blob_service_client", None),
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kwargs.get("connection_string", None),
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kwargs.get("account_url", None),
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os.getenv("AZURE_STORAGE_CONNECTION_STRING", None),
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]
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super().__init__(*args, **kwargs)
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if all(opt is None for opt in cred_opts):
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raise MissingCredentialsError(
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"AzureBlobClient does not support anonymous instantiation. "
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"Credentials are required; see docs for options."
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)
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LocalAzureBlobClient.AzureBlobPath = LocalAzureBlobClient.CloudPath # type: ignore
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class LocalAzureBlobPath(LocalPath):
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"""Replacement for AzureBlobPath that uses the local file system. Intended as a monkeypatch
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substitute when writing tests.
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"""
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cloud_prefix: str = "az://"
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_cloud_meta = local_azure_blob_implementation
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@property
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def drive(self) -> str:
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return self.container
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def mkdir(self, parents=False, exist_ok=False):
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# not possible to make empty directory on blob storage
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pass
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@property
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def container(self) -> str:
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return self._no_prefix.split("/", 1)[0]
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@property
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def blob(self) -> str:
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key = self._no_prefix_no_drive
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# key should never have starting slash for
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if key.startswith("/"):
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key = key[1:]
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return key
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@property
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def etag(self):
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return self.client._md5(self)
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@property
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def md5(self) -> str:
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return self.client._md5(self)
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LocalAzureBlobPath.__name__ = "AzureBlobPath"
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local_azure_blob_implementation.name = "azure"
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local_azure_blob_implementation._client_class = LocalAzureBlobClient
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local_azure_blob_implementation._path_class = LocalAzureBlobPath
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