logger.critical(str(e))
sys.exit(1)
except ProviderNotFoundException, e:
logger.critical(str(e))
sys.exit(1)
except KeyboardInterrupt:
logger.critical('interrupted with Ctrl-C... bye!')
sys.exit(0)
scheduler = None
try:
if command:
scheduler = TasksScheduler()
tasks = topology.get_tasks(command)
assert all(isinstance(t, tuple) for t in tasks)
scheduler.append(tasks)
scheduler.run()
except CandelabraException:
raise
except Exception, e:
logger.critical('uncaught exception')
raise
finally:
if save_state:
if scheduler and scheduler.num_completed > 0:
topology.state.save()
return topology
class ProviderPlugin(object):
