def _check_value(self, action, value): # pylint: disable=too-many-statements, too-many-locals
# Override to customize the error message when a argument is not among the available choices
# converted value must be one of the choices (if specified)
if action.choices is not None and value not in action.choices: # pylint: disable=too-many-nested-blocks
# self.cli_ctx is None when self.prog is beyond 'az', such as 'az iot'.
# use cli_ctx from cli_help which is not lost.
cli_ctx = self.cli_ctx or (self.cli_help.cli_ctx if self.cli_help else None)
caused_by_extension_not_installed = False
command_name_inferred = self.prog
error_msg = None
if not self.command_source:
candidates = difflib.get_close_matches(value, action.choices, cutoff=0.7)
if candidates:
# use the most likely candidate to replace the misspelled command
args = self.prog.split() + self._raw_arguments
args_inferred = [item if item != value else candidates[0] for item in args]
command_name_inferred = ' '.join(args_inferred).split('-')[0]
use_dynamic_install = self._get_extension_use_dynamic_install_config()
if use_dynamic_install != 'no' and not candidates:
# Check if the command is from an extension
from azure.cli.core.util import roughly_parse_command
cmd_list = self.prog.split() + self._raw_arguments
command_str = roughly_parse_command(cmd_list[1:])
ext_name = self._search_in_extension_commands(command_str)
if ext_name:
caused_by_extension_not_installed = True
telemetry.set_command_details(command_str,
parameters=AzCliCommandInvoker._extract_parameter_names(cmd_list), # pylint: disable=protected-access
extension_name=ext_name)
run_after_extension_installed = self._get_extension_run_after_dynamic_install_config()
if use_dynamic_install == 'yes_without_prompt':
logger.warning('The command requires the extension %s. '
'It will be installed first.', ext_name)
go_on = True
else:
from knack.prompting import prompt_y_n, NoTTYException
prompt_msg = 'The command requires the extension {}. ' \
'Do you want to install it now?'.format(ext_name)
if run_after_extension_installed:
prompt_msg = '{} The command will continue to run after the extension is installed.' \
.format(prompt_msg)
NO_PROMPT_CONFIG_MSG = "Run 'az config set extension.use_dynamic_install=" \
"yes_without_prompt' to allow installing extensions without prompt."
try:
go_on = prompt_y_n(prompt_msg, default='y')
if go_on:
logger.warning(NO_PROMPT_CONFIG_MSG)
except NoTTYException:
logger.warning("The command requires the extension %s.\n "
"Unable to prompt for extension install confirmation as no tty "
"available. %s", ext_name, NO_PROMPT_CONFIG_MSG)
go_on = False
if go_on:
from azure.cli.core.extension.operations import add_extension
add_extension(cli_ctx=cli_ctx, extension_name=ext_name, upgrade=True)
if run_after_extension_installed:
import subprocess
import platform
exit_code = subprocess.call(cmd_list, shell=platform.system() == 'Windows')
error_msg = ("Extension {} dynamically installed and commands will be "
"rerun automatically.").format(ext_name)
telemetry.set_user_fault(error_msg)
self.exit(exit_code)
else:
with CommandLoggerContext(logger):
error_msg = 'Extension {} installed. Please rerun your command.'.format(ext_name)
logger.error(error_msg)
telemetry.set_user_fault(error_msg)
self.exit(2)
else:
error_msg = "The command requires the latest version of extension {ext_name}. " \
"To install, run 'az extension add --upgrade -n {ext_name}'.".format(ext_name=ext_name)
if not error_msg:
# parser has no `command_source`, value is part of command itself
error_msg = "'{value}' is misspelled or not recognized by the system.".format(value=value)
az_error = CommandNotFoundError(error_msg)
else:
# `command_source` indicates command values have been parsed, value is an argument
parameter = action.option_strings[0] if action.option_strings else action.dest
error_msg = "{prog}: '{value}' is not a valid value for '{param}'.".format(
prog=self.prog, value=value, param=parameter)
candidates = difflib.get_close_matches(value, action.choices, cutoff=0.7)
az_error = InvalidArgumentValueError(error_msg)
command_arguments = self._get_failure_recovery_arguments(action)
if candidates:
az_error.set_recommendation("Did you mean '{}' ?".format(candidates[0]))
# recommend a command for user
recommender = CommandRecommender(*command_arguments, error_msg, cli_ctx)
recommender.set_help_examples(self.get_examples(command_name_inferred))
recommended_command = recommender.recommend_a_command()
if recommended_command:
az_error.set_recommendation("Try this: '{}'".format(recommended_command))
# remind user to check extensions if we can not find a command to recommend
if isinstance(az_error, CommandNotFoundError) \
and not az_error.recommendations and self.prog == 'az' \
and use_dynamic_install == 'no':
az_error.set_recommendation(EXTENSION_REFERENCE)
az_error.set_recommendation(OVERVIEW_REFERENCE.format(command=self.prog))
if not caused_by_extension_not_installed:
az_error.print_error()
az_error.send_telemetry()
self.exit(2)
def _check_value(self, action,
value): # pylint: too-many-locals, too-many-branches
# Override to customize the error message when a argument is not among the available choices
# converted value must be one of the choices (if specified)
if action.choices is not None and value not in action.choices: # pylint: disable=too-many-nested-blocks
# self.cli_ctx is None when self.prog is beyond 'az', such as 'az iot'.
# use cli_ctx from cli_help which is not lost.
cli_ctx = self.cli_ctx or (self.cli_help.cli_ctx
if self.cli_help else None)
command_name_inferred = self.prog
use_dynamic_install = 'no'
if not self.command_source:
from azure.cli.core.extension.dynamic_install import try_install_extension
candidates = []
args = self.prog.split() + self._raw_arguments
# Check if the command is from an extension. If yes, try to fix by installing the extension, then exit.
# The command will be rerun in another process.
use_dynamic_install = try_install_extension(self, args)
# parser has no `command_source`, value is part of command itself
error_msg = "'{value}' is misspelled or not recognized by the system.".format(
value=value)
az_error = CommandNotFoundError(error_msg)
candidates = difflib.get_close_matches(value,
action.choices,
cutoff=0.7)
if candidates:
# use the most likely candidate to replace the misspelled command
args_inferred = [
item if item != value else candidates[0]
for item in args
]
command_name_inferred = ' '.join(args_inferred).split(
'-')[0]
else:
# `command_source` indicates command values have been parsed, value is an argument
parameter = action.option_strings[
0] if action.option_strings else action.dest
error_msg = "{prog}: '{value}' is not a valid value for '{param}'. Allowed values: {choices}.".format(
prog=self.prog,
value=value,
param=parameter,
choices=', '.join([str(x) for x in action.choices]))
az_error = InvalidArgumentValueError(error_msg)
candidates = difflib.get_close_matches(value,
action.choices,
cutoff=0.7)
command_arguments = self._get_failure_recovery_arguments(action)
if candidates:
az_error.set_recommendation("Did you mean '{}' ?".format(
candidates[0]))
# recommend a command for user
recommender = CommandRecommender(*command_arguments, error_msg,
cli_ctx)
recommender.set_help_examples(
self.get_examples(command_name_inferred))
recommendations = recommender.provide_recommendations()
if recommendations:
az_error.set_aladdin_recommendation(recommendations)
# remind user to check extensions if we can not find a command to recommend
if isinstance(az_error, CommandNotFoundError) \
and not az_error.recommendations and self.prog == 'az' \
and use_dynamic_install == 'no':
az_error.set_recommendation(EXTENSION_REFERENCE)
az_error.print_error()
az_error.send_telemetry()
self.exit(2)
