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config_initialization.py
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config_initialization.py
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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/pylint/blob/main/CONTRIBUTORS.txt
from __future__ import annotations
import sys
from pathlib import Path
from typing import TYPE_CHECKING
from pylint import reporters
from pylint.config.config_file_parser import _ConfigurationFileParser
from pylint.config.exceptions import _UnrecognizedOptionError
from pylint.utils import utils
if TYPE_CHECKING:
from pylint.lint import PyLinter
def _config_initialization(
linter: PyLinter,
args_list: list[str],
reporter: reporters.BaseReporter | reporters.MultiReporter | None = None,
config_file: None | str | Path = None,
verbose_mode: bool = False,
) -> list[str]:
"""Parse all available options, read config files and command line arguments and
set options accordingly.
"""
config_file = Path(config_file) if config_file else None
# Set the current module to the configuration file
# to allow raising messages on the configuration file.
linter.set_current_module(str(config_file) if config_file else "")
# Read the configuration file
config_file_parser = _ConfigurationFileParser(verbose_mode, linter)
try:
config_data, config_args = config_file_parser.parse_config_file(
file_path=config_file
)
except OSError as ex:
print(ex, file=sys.stderr)
sys.exit(32)
# Run init hook, if present, before loading plugins
if "init-hook" in config_data:
exec(utils._unquote(config_data["init-hook"])) # pylint: disable=exec-used
# Load plugins if specified in the config file
if "load-plugins" in config_data:
linter.load_plugin_modules(utils._splitstrip(config_data["load-plugins"]))
unrecognized_options_message = None
# First we parse any options from a configuration file
try:
linter._parse_configuration_file(config_args)
except _UnrecognizedOptionError as exc:
unrecognized_options_message = ", ".join(exc.options)
# Then, if a custom reporter is provided as argument, it may be overridden
# by file parameters, so we re-set it here. We do this before command line
# parsing, so it's still overridable by command line options
if reporter:
linter.set_reporter(reporter)
# Set the current module to the command line
# to allow raising messages on it
linter.set_current_module("Command line")
# Now we parse any options from the command line, so they can override
# the configuration file
parsed_args_list = linter._parse_command_line_configuration(args_list)
# Remove the positional arguments separator from the list of arguments
try:
parsed_args_list.remove("--")
except ValueError:
pass
# Check if there are any options that we do not recognize
unrecognized_options: list[str] = []
for opt in parsed_args_list:
if opt.startswith("--"):
unrecognized_options.append(opt[2:])
elif opt.startswith("-"):
unrecognized_options.append(opt[1:])
if unrecognized_options:
msg = ", ".join(unrecognized_options)
linter._arg_parser.error(f"Unrecognized option found: {msg}")
# Now that config file and command line options have been loaded
# with all disables, it is safe to emit messages
if unrecognized_options_message is not None:
linter.set_current_module(str(config_file) if config_file else "")
linter.add_message(
"unrecognized-option", args=unrecognized_options_message, line=0
)
linter._emit_stashed_messages()
# Set the current module to configuration as we don't know where
# the --load-plugins key is coming from
linter.set_current_module("Command line or configuration file")
# We have loaded configuration from config file and command line. Now, we can
# load plugin specific configuration.
linter.load_plugin_configuration()
# Now that plugins are loaded, get list of all fail_on messages, and enable them
linter.enable_fail_on_messages()
linter._parse_error_mode()
# Link the base Namespace object on the current directory
linter._directory_namespaces[Path(".").resolve()] = (linter.config, {})
# parsed_args_list should now only be a list of files/directories to lint.
# All other options have been removed from the list.
return parsed_args_list