Add purge command

#!/usr/bin/env python

#coding=utf8

'''

CloudControl cancel command

'''

from cccli.exception import *

from sjrpc.core.exceptions import *

from cccli.printer import Printer, color

from cccli.command import TqlCommand

class Command_purge(TqlCommand):

    '''Purge a job (delete it)'''

    def __init__(self, cli, argv0):

        TqlCommand.__init__(self, cli, argv0)

        self.tql_filter += "&r=job&state=done"

    def __call__(self, argv):

        # arg parse

        self.parse_args(argv)

        if len(self.args) != 1:

            raise cmdBadArgument()

        # rpc call

        self.rpccall("purge", self.args[0])

    def remote_functions(self):

        return set(("purge",))