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# Copyright (C) 2007, 2009, 2010, 2011 Aaron Bentley.
# Copyright (C) 2009 Max Bowsher.
#
# 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
import bzrlib
from bzrlib import commands
from version import version_info, __version__
_testing = False
# True if we are currently testing commands via the test suite.
def _stop_testing():
"""Set the _testing flag to indicate we are no longer testing."""
global _testing
_testing = False
class BzrToolsCommand(commands.Command):
def run_argv_aliases(self, argv, alias_argv=None):
result = check_bzrlib_version(version_info[:2])
if result is not None:
return result
commands.Command.run_argv_aliases(self, argv, alias_argv)
TOO_OLD = 'too_old'
COMPATIBLE = 'compatible'
MAYBE_TOO_NEW = 'maybe_too_new'
TOO_NEW = 'too_new'
def check_version_compatibility(bzrlib_version, min_version, max_version):
"""Check whether a bzrlib version is compatible with desired version.
If the bzrlib_version is not less than min_version and not greater than
max_version, it is considered COMPATIBLE. If the version exceeds
max_version by 1 and is not a 'candidate' or 'final' version, it is
considered MAYBE_TOO_NEW. Other values greater than max_version are
considered TOO_NEW, and values lower than min_version are considered
TOO_OLD.
"""
bzrlib_version = bzrlib.version_info[:2]
if bzrlib_version < min_version:
return TOO_OLD
if bzrlib_version <= max_version:
return COMPATIBLE
max_plus = (max_version[0], max_version[1] + 1)
if bzrlib_version == max_plus:
if bzrlib.version_info[3] not in ('final', 'candidate'):
return COMPATIBLE
return MAYBE_TOO_NEW
return TOO_NEW
def check_bzrlib_version(desired):
"""Check that bzrlib is compatible.
If version is < bzrtools version, assume incompatible.
If version == bzrtools version, assume completely compatible
If version == bzrtools version + 1, assume compatible, with deprecations
Otherwise, assume incompatible.
"""
global _testing
if _testing:
return
compatibility = check_version_compatibility(bzrlib.version_info, desired,
desired)
if compatibility == COMPATIBLE:
return
try:
from bzrlib.trace import warning
except ImportError:
# get the message out any way we can
from warnings import warn as warning
if compatibility == TOO_OLD:
warning('Bazaar version %s is too old to be used with'
' plugin "Bzrtools" %s.' % (
bzrlib.__version__, __version__))
# Not using BzrNewError, because it may not exist.
return 3
else:
warning('Plugin "Bzrtools" is not up to date with installed Bazaar'
' version %s.\n'
'There should be a newer version of Bzrtools available, e.g.'
' %i.%i.'
% (bzrlib.__version__, bzrlib.version_info[0],
bzrlib.version_info[1]))
if compatibility == TOO_NEW:
return 3
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