Current File : //usr/lib/python3/dist-packages/flake8/options/aggregator.py
"""Aggregation function for CLI specified options and config file options.
This holds the logic that uses the collected and merged config files and
applies the user-specified command-line configuration on top of it.
"""
import argparse
import logging
from typing import List
from typing import Tuple
from flake8.options import config
from flake8.options.manager import OptionManager
LOG = logging.getLogger(__name__)
def aggregate_options(
manager: OptionManager,
config_finder: config.ConfigFileFinder,
argv: List[str],
) -> Tuple[argparse.Namespace, List[str]]:
"""Aggregate and merge CLI and config file options.
:param flake8.options.manager.OptionManager manager:
The instance of the OptionManager that we're presently using.
:param flake8.options.config.ConfigFileFinder config_finder:
The config file finder to use.
:param list argv:
The list of remaining command-line arguments that were unknown during
preliminary option parsing to pass to ``manager.parse_args``.
:returns:
Tuple of the parsed options and extra arguments returned by
``manager.parse_args``.
:rtype:
tuple(argparse.Namespace, list)
"""
# Get defaults from the option parser
default_values, _ = manager.parse_args([])
# Make our new configuration file mergerator
config_parser = config.ConfigParser(
option_manager=manager, config_finder=config_finder
)
# Get the parsed config
parsed_config = config_parser.parse()
# Extend the default ignore value with the extended default ignore list,
# registered by plugins.
extended_default_ignore = manager.extended_default_ignore.copy()
# Let's store our extended default ignore for use by the decision engine
default_values.extended_default_ignore = (
manager.extended_default_ignore.copy()
)
LOG.debug(
"Extended default ignore list: %s", list(extended_default_ignore)
)
extended_default_ignore.update(default_values.ignore)
default_values.ignore = list(extended_default_ignore)
LOG.debug("Merged default ignore list: %s", default_values.ignore)
extended_default_select = manager.extended_default_select.copy()
LOG.debug(
"Extended default select list: %s", list(extended_default_select)
)
default_values.extended_default_select = extended_default_select
# Merge values parsed from config onto the default values returned
for config_name, value in parsed_config.items():
dest_name = config_name
# If the config name is somehow different from the destination name,
# fetch the destination name from our Option
if not hasattr(default_values, config_name):
dest_name = config_parser.config_options[config_name].dest
LOG.debug(
'Overriding default value of (%s) for "%s" with (%s)',
getattr(default_values, dest_name, None),
dest_name,
value,
)
# Override the default values with the config values
setattr(default_values, dest_name, value)
# Finally parse the command-line options
return manager.parse_args(argv, default_values)
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