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"""The Git plugin provides a revision interface for Bcfg2 repos using git."""
import os
from dulwich.repo import Repo
import Bcfg2.Server.Plugin
# for debugging output only
import logging
logger = logging.getLogger('Bcfg2.Plugins.Git')
class Git(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.Version):
"""Git is a version plugin for dealing with Bcfg2 repos."""
name = 'Git'
__version__ = '$Id$'
__author__ = 'bcfg-dev@mcs.anl.gov'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
Bcfg2.Server.Plugin.Version.__init__(self)
self.core = core
self.datastore = datastore
# path to git directory for bcfg2 repo
git_dir = "%s/.git" % datastore
# Read revision from bcfg2 repo
if os.path.isdir(git_dir):
self.get_revision()
else:
logger.error("%s is not a directory" % git_dir)
raise Bcfg2.Server.Plugin.PluginInitError
logger.debug("Initialized git plugin with git directory %s" % git_dir)
def get_revision(self):
"""Read git revision information for the Bcfg2 repository."""
try:
repo = Repo(self.datastore)
revision = repo.head()
except:
logger.error("Failed to read git repository; disabling git support")
raise Bcfg2.Server.Plugin.PluginInitError
return revision
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