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'''Action driver'''
__revision__ = '$Revision$'
import Bcfg2.Client.Tools
# <Action timing='pre|post|both' name='name' command='cmd text' when='always|modified'
# status='ignore|check'/>
# <PostInstall name='foo'/>
# => <Action timing='post' when='modified' name='n' command='foo' status='ignore'/>
class Action(Bcfg2.Client.Tools.Tool):
'''Implement Actions'''
name = 'Action'
__handles__ = [('PostInstall', None), ('Action', None)]
__req__ = {'PostInstall': ['name'],
'Action':['name', 'timing', 'when', 'command', 'status']}
def RunAction(self, entry):
'''This method handles command execution and status return'''
if not self.setup['dryrun']:
if self.setup['interactive']:
prompt = 'Run Action %s, %s: (y/N): ' % (entry.get('name'), entry.get('command'))
if raw_input(prompt) not in ['y', 'Y']:
return False
if self.setup['servicemode'] == 'build':
if entry.get('build', 'true') == 'false':
self.logger.debug("Action: Deferring execution of %s due to build mode" % (entry.get('command')))
return False
self.logger.debug("Running Action %s" % (entry.get('name')))
rc = self.cmd.run(entry.get('command'))[0]
self.logger.debug("Action: %s got rc %s" % (entry.get('command'), rc))
entry.set('rc', str(rc))
if entry.get('status', 'check') == 'ignore':
return True
else:
return rc == 0
else:
self.logger.debug("In dryrun mode: not running action:\n %s" %
(entry.get('name')))
return False
def VerifyAction(self, dummy, _):
'''Actions always verify true'''
return True
def VerifyPostInstall(self, dummy, _):
'''Actions always verify true'''
return True
def InstallAction(self, entry):
'''Run actions as pre-checks for bundle installation'''
if entry.get('timing') != 'post':
return self.RunAction(entry)
return True
def InstallPostInstall(self, entry):
return self.InstallAction(self, entry)
def BundleUpdated(self, bundle, states):
'''Run postinstalls when bundles have been updated'''
for postinst in bundle.findall("PostInstall"):
self.cmd.run(postinst.get('name'))
for action in bundle.findall("Action"):
if action.get('timing') in ['post', 'both']:
states[action] = self.RunAction(action)
def BundleNotUpdated(self, bundle, states):
'''Run Actions when bundles have not been updated'''
for action in bundle.findall("Action"):
if action.get('timing') in ['post', 'both'] and \
action.get('when') != 'modified':
states[action] = self.RunAction(action)
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