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import Bcfg2.Server.Plugin
from bzrlib.workingtree import WorkingTree
from bzrlib import errors
# for debugging output only
import logging
logger = logging.getLogger('Bcfg2.Plugins.Bzr')
class Bzr(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.Version):
"""Bzr is a version plugin for dealing with Bcfg2 repos."""
name = 'Bzr'
__version__ = '$Id$'
__author__ = 'bcfg-dev@mcs.anl.gov'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
self.core = core
self.datastore = datastore
# Read revision from bcfg2 repo
revision = self.get_revision()
logger.debug("Initialized Bazaar plugin with directory = %(dir)s at revision = %(rev)s" % {'dir': datastore, 'rev': revision})
def get_revision(self):
"""Read Bazaar revision information for the Bcfg2 repository."""
try:
working_tree = WorkingTree.open(self.datastore)
revision = str(working_tree.branch.revno())
if working_tree.has_changes(working_tree.basis_tree()) or working_tree.unknowns():
revision += "+"
except errors.NotBranchError:
logger.error("Failed to read Bazaar branch; disabling Bazaar support")
raise Bcfg2.Server.Plugin.PluginInitError
return revision
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