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Provides a common interface to all backends and certain sevices
intended to be used by the backends themselves.
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Import files in the duplicity/backends directory where
the filename ends in 'backend.py' and ignore the rest.
@rtype: void
@return: void
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Register a given backend factory responsible for URL:s with the
given scheme.
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Register a given backend factory responsible for URL:s with the
given scheme prefix.
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r, z6the prefix %s already has a backend associated with itN)r- �_backend_prefixesr r/ r( r( r) �register_backend_prefix� r3 r5 c C s t �dt �|� d d| �S )zI
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Find the right backend class instance for the given URL, or return None
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Parse the given URL as a duplicity backend URL.
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the standard urlparse.urlparse() except that all values have been
resolved rather than deferred. There are no get_* members. This
makes sure that the URL parsing errors are detected early.
Raise InvalidBackendURL on invalid URL's
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Return a password for authentication purposes. The password
will be obtained from the backend URL, the environment, by
asking the user, or by some other method. When applicable, the
result will be cached for future invocations.
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Remove password from commandline by substituting the password
found in the URL, if any, with a generic place-holder.
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guaranteed that the results are correct (i.e., more than just
the ':password@' may be substituted.
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Represents a generic duplicity backend, capable of storing and
retrieving files.
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path component of pathname.
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Move source_path (Path object) to remote_filename (string)
Same as put(), but unlinks source_path in the process. This allows the
local backend to do this more efficiently using rename.
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Manages remote access before downloading files
(unseal data in cold storage for instance)
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Delete each filename in filename_list, in order if possible.
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Return metadata about each filename in filename_list
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Close the backend, releasing any resources held and
invalidating any file objects obtained from the backend.
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