Viewing: exception.py
# -*- coding: utf-8 -*-
# Copyright 2010 Google Inc. All Rights Reserved.
#
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# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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"""gsutil exceptions.
The exceptions in this module are for use across multiple different classes.
"""
from __future__ import absolute_import
from __future__ import print_function
from __future__ import division
from __future__ import unicode_literals
import six
NO_URLS_MATCHED_PREFIX = 'No URLs matched'
NO_URLS_MATCHED_GENERIC = (NO_URLS_MATCHED_PREFIX +
'. Do the files you\'re operating on exist?')
NO_URLS_MATCHED_TARGET = NO_URLS_MATCHED_PREFIX + ': %s'
if six.PY3:
# StandardError was removed, so use the base exception type instead
StandardError = Exception
class AbortException(StandardError):
"""Exception raised when a user aborts a command that needs to do cleanup."""
def __init__(self, reason):
StandardError.__init__(self)
self.reason = reason
def __repr__(self):
return 'AbortException: %s' % self.reason
def __str__(self):
return 'AbortException: %s' % self.reason
class CommandException(StandardError):
"""Exception raised when a problem is encountered running a gsutil command.
This exception should be used to signal user errors or system failures
(like timeouts), not bugs (like an incorrect param value). For the
latter you should raise Exception so we can see where/how it happened
via gsutil -D (which will include a stack trace for raised Exceptions).
"""
def __init__(self, reason, informational=False):
"""Instantiate a CommandException.
Args:
reason: Text describing the problem.
informational: Indicates reason should be printed as FYI, not a failure.
"""
StandardError.__init__(self)
self.reason = reason
self.informational = informational
def __repr__(self):
return str(self)
def __str__(self):
return 'CommandException: %s' % self.reason
class ControlCException(Exception):
"""Exception to report to analytics when the user exits via ctrl-C.
This exception is never actually raised, but is used by analytics collection
to provide a more descriptive name for user exit.
"""
pass
class GcloudStorageTranslationError(Exception):
"""Exception raised when a gsutil command can't be translated to gcloud."""
pass
class HashMismatchException(Exception):
"""Exception raised when data integrity validation fails."""
pass
class IamChOnResourceWithConditionsException(Exception):
"""Raised when trying to use "iam ch" on an IAM policy with conditions.
Because the syntax for conditions is fairly complex, it doesn't make sense to
specify them on the command line using a colon-delimited set of values in the
same way you'd specify simple bindings - it would be a complex and potentially
surprising interface, which isn't what you want when dealing with permissions.
Additionally, providing partial functionality -- e.g. if a policy contains
bindings with conditions, still allow users to interact with bindings that
don't contain conditions -- might sound tempting, but results in a bad user
experience. Bindings can be thought of as a mapping from (role, condition) ->
[members]. Thus, a user might think they're editing the binding for (role1,
condition1), but they'd really be editing the binding for (role1, None). Thus,
we just raise an error if we encounter a binding with conditions present, and
encourage users to use "iam {get,set}" instead.
"""
def __init__(self, message):
Exception.__init__(self, message)
self.message = message
def __repr__(self):
return str(self)
def __str__(self):
return 'IamChOnResourceWithConditionsException: %s' % self.message
class InvalidUrlError(Exception):
"""Exception raised when URL is invalid."""
def __init__(self, message):
Exception.__init__(self, message)
self.message = message
def __repr__(self):
return str(self)
def __str__(self):
return 'InvalidUrlError: %s' % self.message
class ExternalBinaryError(Exception):
"""Exception raised when gsutil runs an external binary, and it fails."""
def __init__(self, message):
Exception.__init__(self, message)
self.message = message
def __repr__(self):
return 'ExternalBinaryError: %s' % self.message
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