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# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
#
# This module is part of GitDB and is released under
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
"""Module with common exceptions"""
from gitdb.util import to_hex_sha


class ODBError(Exception):
    """All errors thrown by the object database"""


class InvalidDBRoot(ODBError):
    """Thrown if an object database cannot be initialized at the given path"""


class BadObject(ODBError):
    """The object with the given SHA does not exist. Instantiate with the
    failed sha"""

    def __str__(self):
        return "BadObject: %s" % to_hex_sha(self.args[0])


class BadName(ODBError):
    """A name provided to rev_parse wasn't understood"""

    def __str__(self):
        return "Ref '%s' did not resolve to an object" % self.args[0]


class ParseError(ODBError):
    """Thrown if the parsing of a file failed due to an invalid format"""


class AmbiguousObjectName(ODBError):
    """Thrown if a possibly shortened name does not uniquely represent a single object
    in the database"""


class BadObjectType(ODBError):
    """The object had an unsupported type"""


class UnsupportedOperation(ODBError):
    """Thrown if the given operation cannot be supported by the object database"""

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