1 # error.py - Mercurial exceptions
3 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2, incorporated herein by reference.
8 """Mercurial exceptions.
10 This allows us to catch exceptions at higher levels without forcing
14 # Do not import anything here, please
16 class RevlogError(Exception):
19 class LookupError(RevlogError, KeyError):
20 def __init__(self, name, index, message):
22 if isinstance(name, str) and len(name) == 20:
23 from node import short
25 RevlogError.__init__(self, '%s@%s: %s' % (index, name, message))
28 return RevlogError.__str__(self)
30 class ParseError(Exception):
31 """Exception raised on errors in parsing the command line."""
33 class ConfigError(Exception):
34 'Exception raised when parsing config files'
36 class RepoError(Exception):
39 class CapabilityError(RepoError):
42 class LockError(IOError):
43 def __init__(self, errno, strerror, filename, desc):
44 IOError.__init__(self, errno, strerror, filename)
47 class LockHeld(LockError):
48 def __init__(self, errno, filename, desc, locker):
49 LockError.__init__(self, errno, 'Lock held', filename, desc)
52 class LockUnavailable(LockError):
55 class ResponseError(Exception):
56 """Raised to print an error with part of output and exit."""
58 class UnknownCommand(Exception):
59 """Exception raised if command is not in the command table."""
61 class AmbiguousCommand(Exception):
62 """Exception raised if command shortcut matches more than one command."""
64 # derived from KeyboardInterrupt to simplify some breakout code
65 class SignalInterrupt(KeyboardInterrupt):
66 """Exception raised on SIGTERM and SIGHUP."""
68 class SignatureError(Exception):
71 class Abort(Exception):
72 """Raised if a command needs to print an error and exit."""