'''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)