/usr/lib/python3/dist-packages/cliff/help.py is in python3-cliff 1.15.0-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | import argparse
import sys
import traceback
from .command import Command
class HelpAction(argparse.Action):
"""Provide a custom action so the -h and --help options
to the main app will print a list of the commands.
The commands are determined by checking the CommandManager
instance, passed in as the "default" value for the action.
"""
def __call__(self, parser, namespace, values, option_string=None):
app = self.default
parser.print_help(app.stdout)
app.stdout.write('\nCommands:\n')
command_manager = app.command_manager
for name, ep in sorted(command_manager):
try:
factory = ep.load()
except Exception as err:
app.stdout.write('Could not load %r\n' % ep)
if namespace.debug:
traceback.print_exc(file=app.stdout)
continue
try:
cmd = factory(app, None)
if cmd.deprecated:
continue
except Exception as err:
app.stdout.write('Could not instantiate %r: %s\n' % (ep, err))
if namespace.debug:
traceback.print_exc(file=app.stdout)
continue
one_liner = cmd.get_description().split('\n')[0]
app.stdout.write(' %-13s %s\n' % (name, one_liner))
sys.exit(0)
class HelpCommand(Command):
"""print detailed help for another command
"""
def get_parser(self, prog_name):
parser = super(HelpCommand, self).get_parser(prog_name)
parser.add_argument('cmd',
nargs='*',
help='name of the command',
)
return parser
def take_action(self, parsed_args):
if parsed_args.cmd:
try:
the_cmd = self.app.command_manager.find_command(
parsed_args.cmd,
)
cmd_factory, cmd_name, search_args = the_cmd
except ValueError:
# Did not find an exact match
cmd = parsed_args.cmd[0]
fuzzy_matches = [k[0] for k in self.app.command_manager
if k[0].startswith(cmd)
]
if not fuzzy_matches:
raise
self.app.stdout.write('Command "%s" matches:\n' % cmd)
for fm in sorted(fuzzy_matches):
self.app.stdout.write(' %s\n' % fm)
return
self.app_args.cmd = search_args
cmd = cmd_factory(self.app, self.app_args)
full_name = (cmd_name
if self.app.interactive_mode
else ' '.join([self.app.NAME, cmd_name])
)
cmd_parser = cmd.get_parser(full_name)
else:
action = HelpAction(None, None, default=self.app)
action(self.app.parser, self.app.parser, None, None)
cmd_parser.print_help(self.app.stdout)
return 0
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