mercurial/error.py
author Olav Reinert <seroton10@gmail.com>
Fri, 06 Jan 2012 15:05:51 +0100
branchstable
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child 18855 50c922c1b514
permissions -rw-r--r--
mq: Document that qdel requires exact patch identifiers
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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 RevlogError(Exception):
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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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        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 CommandError(Exception):
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    """Exception raised on errors in parsing the command line."""
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class Abort(Exception):
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    """Raised if a command needs to print an error and exit."""
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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 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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class ParseError(Exception):
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    'Exception raised when parsing config files (msg[, pos])'
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class RepoError(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 RepoLookupError(RepoError):
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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