#!/usr/bin/python
# Copyright (c) 1999-2005 Red Hat, Inc. Distributed under GPL. # # Author: Adrian Likins <alikins@redhat.com>
"""command.py includes the base class for each of the command modes for up2date. These modes include things like "list", "query", "update", etc. """
import sys try: # Optik is deprecated since it is part of python (but it is called # optparse) from optparse import OptionParser, Option except ImportError: from optik import OptionParser, Option
# put this in it's own module? class CLIOptionParser(OptionParser): def __init__(self, *args, **kwargs): apply(OptionParser.__init__, (self, ) + args, kwargs)
def error(self, msg): self.print_usage(sys.stderr) sys.stderr.write("%s: error: %s\n" % (sys.argv[0], msg)) # Otherwise, just exit sys.exit(1)
class Command(object): """Base class for all the "command" objects (list, install, remove, query, etc) """
def __init__(self, passed_args, optionstable = []): # list of strings
self.passed_args = passed_args if optionstable: self.optionstable = optionstable # self.optionstable is set in the derived classes
self.optparser = CLIOptionParser(option_list=self.optionstable)
# FIXME: exception here? (self.options, self.args) = self.optparser.parse_args(self.passed_args)
def getHelpString(self): "return the help string for this particular command" pass
def getExamplesString(self): "return the string of examples for this particular command" pass
def getValidOptions(self): "return a list of options supported by this class" pass
def getValidArgs(self): "return a list of arguments supported by this class" pass
def getOptions(self): "return the parses options" return self.options
def getArgs(self): "return the parsed args" return self.args
command.py