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__init__.py	1.43 KB	-rw-r--r--
__main__.py	663 B	-rw-r--r--
alias.py	10.95 KB	-rw-r--r--
argparser.py	7.46 KB	-rw-r--r--
argprocess.py	20.84 KB	-rw-r--r--
arguments.py	18.38 KB	-rw-r--r--
clidocs.py	28.56 KB	-rw-r--r--
clidriver.py	26.44 KB	-rw-r--r--
commands.py	2.06 KB	-rw-r--r--
compat.py	18.43 KB	-rw-r--r--
completer.py	5.74 KB	-rw-r--r--
errorhandler.py	2.96 KB	-rw-r--r--
formatter.py	11 KB	-rw-r--r--
handlers.py	9.87 KB	-rw-r--r--
help.py	13.26 KB	-rw-r--r--
paramfile.py	9.94 KB	-rw-r--r--
plugin.py	2.21 KB	-rw-r--r--
schema.py	6.25 KB	-rw-r--r--
shorthand.py	17.11 KB	-rw-r--r--
table.py	15.01 KB	-rw-r--r--
testutils.py	34.5 KB	-rw-r--r--
text.py	4.18 KB	-rw-r--r--
topictags.py	12.36 KB	-rw-r--r--
utils.py	9.08 KB	-rw-r--r--

Code Editor : argparser.py

# Copyright 2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
#     http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
import argparse
import sys
from awscli.compat import six
from difflib import get_close_matches

AWS_CLI_V2_MESSAGE = (
    'Note: AWS CLI version 2, the latest major version '
    'of the AWS CLI, is now stable and recommended for general '
    'use. For more information, see the AWS CLI version 2 '
    'installation instructions at: https://docs.aws.amazon.com/cli/'
    'latest/userguide/install-cliv2.html'
)

HELP_BLURB = (
    "To see help text, you can run:\n"
    "\n"
    "  aws help\n"
    "  aws <command> help\n"
    "  aws <command> <subcommand> help\n"
)
USAGE = (
    "\r%s\n\n"
    "usage: aws [options] <command> <subcommand> "
    "[<subcommand> ...] [parameters]\n"
    % (HELP_BLURB)
)

class CommandAction(argparse.Action):
    """Custom action for CLI command arguments

Allows the choices for the argument to be mutable. The choices
    are dynamically retrieved from the keys of the referenced command
    table
    """
    def __init__(self, option_strings, dest, command_table, **kwargs):
        self.command_table = command_table
        super(CommandAction, self).__init__(
            option_strings, dest, choices=self.choices, **kwargs
        )

def __call__(self, parser, namespace, values, option_string=None):
        setattr(namespace, self.dest, values)

@property
    def choices(self):
        return list(self.command_table.keys())

@choices.setter
    def choices(self, val):
        # argparse.Action will always try to set this value upon
        # instantiation, but this value should be dynamically
        # generated from the command table keys. So make this a
        # NOOP if argparse.Action tries to set this value.
        pass

class CLIArgParser(argparse.ArgumentParser):
    Formatter = argparse.RawTextHelpFormatter

# When displaying invalid choice error messages,
    # this controls how many options to show per line.
    ChoicesPerLine = 2

def _check_value(self, action, value):
        """
        It's probably not a great idea to override a "hidden" method
        but the default behavior is pretty ugly and there doesn't
        seem to be any other way to change it.
        """
        # converted value must be one of the choices (if specified)
        if action.choices is not None and value not in action.choices:
            msg = ['Invalid choice, valid choices are:\n']
            for i in range(len(action.choices))[::self.ChoicesPerLine]:
                current = []
                for choice in action.choices[i:i+self.ChoicesPerLine]:
                    current.append('%-40s' % choice)
                msg.append(' | '.join(current))
            possible = get_close_matches(value, action.choices, cutoff=0.8)
            if possible:
                extra = ['\n\nInvalid choice: %r, maybe you meant:\n' % value]
                for word in possible:
                    extra.append('  * %s' % word)
                msg.extend(extra)
            raise argparse.ArgumentError(action, '\n'.join(msg))

def parse_known_args(self, args, namespace=None):
        parsed, remaining = super(CLIArgParser, self).parse_known_args(args, namespace)
        terminal_encoding = getattr(sys.stdin, 'encoding', 'utf-8')
        if terminal_encoding is None:
            # In some cases, sys.stdin won't have an encoding set,
            # (e.g if it's set to a StringIO).  In this case we just
            # default to utf-8.
            terminal_encoding = 'utf-8'
        for arg, value in vars(parsed).items():
            if isinstance(value, six.binary_type):
                setattr(parsed, arg, value.decode(terminal_encoding))
            elif isinstance(value, list):
                encoded = []
                for v in value:
                    if isinstance(v, six.binary_type):
                        encoded.append(v.decode(terminal_encoding))
                    else:
                        encoded.append(v)
                setattr(parsed, arg, encoded)
        return parsed, remaining

class MainArgParser(CLIArgParser):
    Formatter = argparse.RawTextHelpFormatter

def __init__(self, command_table, version_string,
                 description, argument_table, prog=None):
        super(MainArgParser, self).__init__(
            formatter_class=self.Formatter,
            add_help=False,
            conflict_handler='resolve',
            description=description,
            usage=USAGE,
            prog=prog)
        self._build(command_table, version_string, argument_table)

def _create_choice_help(self, choices):
        help_str = ''
        for choice in sorted(choices):
            help_str += '* %s\n' % choice
        return help_str

def _build(self, command_table, version_string, argument_table):
        for argument_name in argument_table:
            argument = argument_table[argument_name]
            argument.add_to_parser(self)
        self.add_argument('--version', action="version",
                          version=version_string,
                          help='Display the version of this tool')
        self.add_argument('command', action=CommandAction,
                          command_table=command_table)

class ServiceArgParser(CLIArgParser):

def __init__(self, operations_table, service_name):
        super(ServiceArgParser, self).__init__(
            formatter_class=argparse.RawTextHelpFormatter,
            add_help=False,
            conflict_handler='resolve',
            usage=USAGE)
        self._build(operations_table)
        self._service_name = service_name

def _build(self, operations_table):
        self.add_argument('operation', action=CommandAction,
                          command_table=operations_table)

class ArgTableArgParser(CLIArgParser):
    """CLI arg parser based on an argument table."""

def __init__(self, argument_table, command_table=None):
        # command_table is an optional subcommand_table.  If it's passed
        # in, then we'll update the argparse to parse a 'subcommand' argument
        # and populate the choices field with the command table keys.
        super(ArgTableArgParser, self).__init__(
            formatter_class=self.Formatter,
            add_help=False,
            usage=USAGE,
            conflict_handler='resolve')
        if command_table is None:
            command_table = {}
        self._build(argument_table, command_table)

def _build(self, argument_table, command_table):
        for arg_name in argument_table:
            argument = argument_table[arg_name]
            argument.add_to_parser(self)
        if command_table:
            self.add_argument('subcommand', action=CommandAction,
                              command_table=command_table, nargs='?')

def parse_known_args(self, args, namespace=None):
        if len(args) == 1 and args[0] == 'help':
            namespace = argparse.Namespace()
            namespace.help = 'help'
            return namespace, []
        else:
            return super(ArgTableArgParser, self).parse_known_args(
                args, namespace)

${this.title}

Code Editor : argparser.py