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# error.py - Mercurial exceptions
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#
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# Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""Mercurial exceptions.
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This allows us to catch exceptions at higher levels without forcing
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imports.
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"""
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# Do not import anything here, please
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class HintException(Exception):
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def __init__(self, *args, **kw):
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Exception.__init__(self, *args)
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self.hint = kw.get('hint')
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class RevlogError(Exception):
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pass
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class FilteredIndexError(IndexError):
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pass
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class LookupError(RevlogError, KeyError):
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def __init__(self, name, index, message):
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self.name = name
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self.index = index
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# this can't be called 'message' because at least some installs of
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# Python 2.6+ complain about the 'message' property being deprecated
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self.lookupmessage = message
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if isinstance(name, str) and len(name) == 20:
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from node import short
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name = short(name)
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RevlogError.__init__(self, '%s@%s: %s' % (index, name, message))
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def __str__(self):
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return RevlogError.__str__(self)
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class FilteredLookupError(LookupError):
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pass
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class ManifestLookupError(LookupError):
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pass
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class CommandError(Exception):
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"""Exception raised on errors in parsing the command line."""
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class InterventionRequired(Exception):
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"""Exception raised when a command requires human intervention."""
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class Abort(HintException):
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"""Raised if a command needs to print an error and exit."""
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pass
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class HookAbort(Abort):
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"""raised when a validation hook fails, aborting an operation
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Exists to allow more specialized catching."""
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pass
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class ConfigError(Abort):
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"""Exception raised when parsing config files"""
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class OutOfBandError(Exception):
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"""Exception raised when a remote repo reports failure"""
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def __init__(self, *args, **kw):
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Exception.__init__(self, *args)
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self.hint = kw.get('hint')
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class ParseError(Exception):
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"""Raised when parsing config files and {rev,file}sets (msg[, pos])"""
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class UnknownIdentifier(ParseError):
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"""Exception raised when a {rev,file}set references an unknown identifier"""
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def __init__(self, function, symbols):
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from i18n import _
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ParseError.__init__(self, _("unknown identifier: %s") % function)
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self.function = function
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self.symbols = symbols
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class RepoError(HintException):
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pass
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class RepoLookupError(RepoError):
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pass
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class FilteredRepoLookupError(RepoLookupError):
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pass
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class CapabilityError(RepoError):
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pass
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class RequirementError(RepoError):
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"""Exception raised if .hg/requires has an unknown entry."""
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pass
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class LockError(IOError):
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def __init__(self, errno, strerror, filename, desc):
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IOError.__init__(self, errno, strerror, filename)
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self.desc = desc
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class LockHeld(LockError):
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def __init__(self, errno, filename, desc, locker):
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LockError.__init__(self, errno, 'Lock held', filename, desc)
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self.locker = locker
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class LockUnavailable(LockError):
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pass
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class ResponseError(Exception):
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"""Raised to print an error with part of output and exit."""
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class UnknownCommand(Exception):
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"""Exception raised if command is not in the command table."""
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class AmbiguousCommand(Exception):
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"""Exception raised if command shortcut matches more than one command."""
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# derived from KeyboardInterrupt to simplify some breakout code
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class SignalInterrupt(KeyboardInterrupt):
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"""Exception raised on SIGTERM and SIGHUP."""
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class SignatureError(Exception):
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pass
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class PushRaced(RuntimeError):
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"""An exception raised during unbundling that indicate a push race"""
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# bundle2 related errors
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class BundleValueError(ValueError):
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"""error raised when bundle2 cannot be processed"""
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class UnsupportedPartError(BundleValueError):
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def __init__(self, parttype=None, params=()):
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self.parttype = parttype
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self.params = params
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if self.parttype is None:
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msg = 'Stream Parameter'
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else:
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msg = parttype
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if self.params:
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msg = '%s - %s' % (msg, ', '.join(self.params))
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ValueError.__init__(self, msg)
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class ReadOnlyPartError(RuntimeError):
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"""error raised when code tries to alter a part being generated"""
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pass
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class CensoredNodeError(RevlogError):
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"""error raised when content verification fails on a censored node
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Also contains the tombstone data substituted for the uncensored data.
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"""
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def __init__(self, filename, node, tombstone):
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from node import short
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RevlogError.__init__(self, '%s:%s' % (filename, short(node)))
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self.tombstone = tombstone
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class CensoredBaseError(RevlogError):
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"""error raised when a delta is rejected because its base is censored
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A delta based on a censored revision must be formed as single patch
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operation which replaces the entire base with new content. This ensures
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the delta may be applied by clones which have not censored the base.
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"""
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