Source code for dispass.commands.help

'''Subcommand module `help`; contains only a single class `Command`'''

# Copyright (c) 2012-2016  Tom Willemse <tom@ryuslash.org>
# Copyright (c) 2011-2016  Benjamin Althues <benjamin@althu.es>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import exceptions
import importlib

from pycommand import CommandBase

from dispass.dispass import DispassCommand


[docs]class Command(CommandBase): '''Show help information''' usagestr = 'usage: dispass help [<command>]' description = 'Show help information' def run(self): if not self.args: print(DispassCommand([]).usage) return else: try: mod = importlib.import_module( 'dispass.commands.' + self.args[0] ) cmd = mod.Command(argv=self.args[1:]) except ImportError: print('error: command {cmd} does not exist' .format(cmd=self.args[0])) return 1 except exceptions.KeyboardInterrupt: print('\nOk, bye') return 1 print(cmd.usage)