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# Copyright (C) 2008 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Exception classes for fastimport"""
# Prefix to messages to show location information
_LOCATION_FMT = "line %(lineno)d: "
class ImportError(Exception):
"""The base exception class for all import processing exceptions."""
def __init__(self):
super(ImportError, self).__init__(self._fmt % self.__dict__)
class ParsingError(ImportError):
"""The base exception class for all import processing exceptions."""
_fmt = _LOCATION_FMT + "Unknown Import Parsing Error"
def __init__(self, lineno):
self.lineno = lineno
ImportError.__init__(self)
class MissingBytes(ParsingError):
"""Raised when EOF encountered while expecting to find more bytes."""
_fmt = (_LOCATION_FMT + "Unexpected EOF - expected %(expected)d bytes,"
" found %(found)d")
def __init__(self, lineno, expected, found):
self.expected = expected
self.found = found
ParsingError.__init__(self, lineno)
class MissingTerminator(ParsingError):
"""Raised when EOF encountered while expecting to find a terminator."""
_fmt = (_LOCATION_FMT +
"Unexpected EOF - expected '%(terminator)s' terminator")
def __init__(self, lineno, terminator):
self.terminator = terminator
ParsingError.__init__(self, lineno)
class InvalidCommand(ParsingError):
"""Raised when an unknown command found."""
_fmt = (_LOCATION_FMT + "Invalid command '%(cmd)s'")
def __init__(self, lineno, cmd):
self.cmd = cmd
ParsingError.__init__(self, lineno)
class MissingSection(ParsingError):
"""Raised when a section is required in a command but not present."""
_fmt = (_LOCATION_FMT + "Command %(cmd)s is missing section %(section)s")
def __init__(self, lineno, cmd, section):
self.cmd = cmd
self.section = section
ParsingError.__init__(self, lineno)
class BadFormat(ParsingError):
"""Raised when a section is formatted incorrectly."""
_fmt = (_LOCATION_FMT + "Bad format for section %(section)s in "
"command %(cmd)s: found '%(text)s'")
def __init__(self, lineno, cmd, section, text):
self.cmd = cmd
self.section = section
self.text = text
ParsingError.__init__(self, lineno)
class InvalidTimezone(ParsingError):
"""Raised when converting a string timezone to a seconds offset."""
_fmt = (_LOCATION_FMT +
"Timezone %(timezone)r could not be converted.%(reason)s")
def __init__(self, lineno, timezone, reason=None):
self.timezone = timezone
if reason:
self.reason = ' ' + reason
else:
self.reason = ''
ParsingError.__init__(self, lineno)
class PrematureEndOfStream(ParsingError):
"""Raised when the 'done' feature was specified but missing."""
_fmt = (_LOCATION_FMT + "Stream end before 'done' command")
def __init__(self, lineno):
ParsingError.__init__(self, lineno)
class UnknownDateFormat(ImportError):
"""Raised when an unknown date format is given."""
_fmt = ("Unknown date format '%(format)s'")
def __init__(self, format):
self.format = format
ImportError.__init__(self)
class MissingHandler(ImportError):
"""Raised when a processor can't handle a command."""
_fmt = ("Missing handler for command %(cmd)s")
def __init__(self, cmd):
self.cmd = cmd
ImportError.__init__(self)
class UnknownParameter(ImportError):
"""Raised when an unknown parameter is passed to a processor."""
_fmt = ("Unknown parameter - '%(param)s' not in %(knowns)s")
def __init__(self, param, knowns):
self.param = param
self.knowns = knowns
ImportError.__init__(self)
class BadRepositorySize(ImportError):
"""Raised when the repository has an incorrect number of revisions."""
_fmt = ("Bad repository size - %(found)d revisions found, "
"%(expected)d expected")
def __init__(self, expected, found):
self.expected = expected
self.found = found
ImportError.__init__(self)
class BadRestart(ImportError):
"""Raised when the import stream and id-map do not match up."""
_fmt = ("Bad restart - attempted to skip commit %(commit_id)s "
"but matching revision-id is unknown")
def __init__(self, commit_id):
self.commit_id = commit_id
ImportError.__init__(self)
class UnknownFeature(ImportError):
"""Raised when an unknown feature is given in the input stream."""
_fmt = ("Unknown feature '%(feature)s' - try a later importer or "
"an earlier data format")
def __init__(self, feature):
self.feature = feature
ImportError.__init__(self)
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