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import os
import pipes
from subprocess import Popen, PIPE
import Bcfg2.Server.Plugin
# for debugging output only
import logging
logger = logging.getLogger('Bcfg2.Plugins.Svn')
class Svn(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.Version):
"""Svn is a version plugin for dealing with Bcfg2 repos."""
name = 'Svn'
__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
# path to svn directory for bcfg2 repo
svn_dir = "%s/.svn" % datastore
# Read revision from bcfg2 repo
if os.path.isdir(svn_dir):
self.get_revision()
else:
logger.error("%s is not a directory" % svn_dir)
raise Bcfg2.Server.Plugin.PluginInitError
logger.debug("Initialized svn plugin with svn directory = %s" % svn_dir)
def get_revision(self):
"""Read svn revision information for the Bcfg2 repository."""
try:
data = Popen(("env LC_ALL=C svn info %s" %
pipes.quote(self.datastore)), shell=True,
stdout=PIPE).communicate()[0].split('\n')
return [line.split(': ')[1] for line in data \
if line[:9] == 'Revision:'][-1]
except IndexError:
logger.error("Failed to read svn info; disabling svn support")
logger.error('''Ran command "svn info %s"''' % (self.datastore))
logger.error("Got output: %s" % data)
raise Bcfg2.Server.Plugin.PluginInitError
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