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# Copyright (C) 2009 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""An object that maps bzr branch names <-> git ref names."""
class BranchMapper(object):
def git_to_bzr(self, ref_names):
"""Get the mapping from git reference names to Bazaar branch names.
:return: a dictionary with git reference names as keys and
the Bazaar branch names as values.
"""
bazaar_names = {}
for ref_name in sorted(ref_names):
parts = ref_name.split('/')
if parts[0] == 'refs':
parts.pop(0)
category = parts.pop(0)
if category == 'heads':
git_name = '/'.join(parts)
bazaar_name = self._git_to_bzr_name(git_name)
else:
if category == 'remotes' and parts[0] == 'origin':
parts.pop(0)
git_name = '/'.join(parts)
if category.endswith('s'):
category = category[:-1]
name_no_ext = self._git_to_bzr_name(git_name)
bazaar_name = "%s.%s" % (name_no_ext, category)
bazaar_names[ref_name] = bazaar_name
return bazaar_names
def _git_to_bzr_name(self, git_name):
if git_name == 'master':
bazaar_name = 'trunk'
elif git_name.endswith('trunk'):
bazaar_name = 'git-%s' % (git_name,)
else:
bazaar_name = git_name
return bazaar_name
def bzr_to_git(self, branch_names):
"""Get the mapping from Bazaar branch names to git reference names.
:return: a dictionary with Bazaar branch names as keys and
the git reference names as values.
"""
raise NotImplementedError(self.bzr_to_git)
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