~bzr-pqm/bzr/bzr.dev

#! /usr/bin/env python

# -*- coding: UTF-8 -*-

# 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, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

__copyright__ = "Copyright (C) 2005 Canonical Ltd."

__author__ = "Martin Pool <mbp@canonical.com>"

######################################################################

# exceptions 

class BzrError(StandardError):

    def __str__(self):

        if len(self.args) == 1:

            return self.args[0]

        elif len(self.args) == 2:

            # further explanation or suggestions

            return '\n  '.join([self.args[0]] + self.args[1])

        else:

            return `self.args`

class BzrCheckError(BzrError):

    pass

class InvalidRevisionNumber(BzrError):

    def __str__(self):

        return 'invalid revision number: %r' % self.args[0]

class InvalidRevisionId(BzrError):

    pass

class BzrCommandError(BzrError):

    # Error from malformed user command

    pass

class NotBranchError(BzrError):

    """Specified path is not in a branch"""

    pass

class NotVersionedError(BzrError):

    """Specified object is not versioned."""

class BadFileKindError(BzrError):

    """Specified file is of a kind that cannot be added.

    (For example a symlink or device file.)"""

    pass

class ForbiddenFileError(BzrError):

    """Cannot operate on a file because it is a control file."""

    pass

class LockError(Exception):

    """All exceptions from the lock/unlock functions should be from

    this exception class.  They will be translated as necessary. The

    original exception is available as e.original_error

    """

    def __init__(self, e=None):

        self.original_error = e

        if e:

            Exception.__init__(self, e)

        else:

            Exception.__init__(self)

class PointlessCommit(Exception):

    """Commit failed because nothing was changed."""

class NoSuchRevision(BzrError):

    def __init__(self, branch, revision):

        self.branch = branch

        self.revision = revision

        msg = "Branch %s has no revision %s" % (branch, revision)

        BzrError.__init__(self, msg)

class HistoryMissing(BzrError):

    def __init__(self, branch, object_type, object_id):

        self.branch = branch

        BzrError.__init__(self,

                          '%s is missing %s {%s}'

                          % (branch, object_type, object_id))

class UnrelatedBranches(BzrCommandError):

    def __init__(self):

        msg = "Branches have no common ancestor, and no base revision"\

            " specified."

        BzrCommandError.__init__(self, msg)

class NotAncestor(BzrError):

    def __init__(self, rev_id, not_ancestor_id):

        self.rev_id = rev_id

        self.not_ancestor_id = not_ancestor_id

        msg = "Revision %s is not an ancestor of %s" % (not_ancestor_id, 

                                                        rev_id)

        BzrError.__init__(self, msg)

class InstallFailed(BzrError):

    def __init__(self, revisions):

        self.revisions = revisions

        msg = "Could not install revisions:\n%s" % " ,".join(revisions)

        BzrError.__init__(self, msg)

class AmbiguousBase(BzrError):

    def __init__(self, bases):

        msg = "The correct base is unclear, becase %s are all equally close" %\

            ", ".join(bases)

        BzrError.__init__(self, msg)

        self.bases = bases