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# Copyright 2017-2020 Palantir Technologies, Inc.
# Copyright 2021- Python Language Server Contributors.
import logging
import os
from pylsp._utils import find_parents
from .source import ConfigSource
log = logging.getLogger(__name__)
CONFIG_KEY = "flake8"
PROJECT_CONFIGS = [".flake8", "setup.cfg", "tox.ini"]
OPTIONS = [
# mccabe
("max-complexity", "plugins.mccabe.threshold", int),
# pycodestyle
("exclude", "plugins.pycodestyle.exclude", list),
("filename", "plugins.pycodestyle.filename", list),
("hang-closing", "plugins.pycodestyle.hangClosing", bool),
("ignore", "plugins.pycodestyle.ignore", list),
("max-line-length", "plugins.pycodestyle.maxLineLength", int),
("indent-size", "plugins.pycodestyle.indentSize", int),
("select", "plugins.pycodestyle.select", list),
# flake8
("exclude", "plugins.flake8.exclude", list),
("extend-ignore", "plugins.flake8.extendIgnore", list),
("extend-select", "plugins.flake8.extendSelect", list),
("filename", "plugins.flake8.filename", list),
("hang-closing", "plugins.flake8.hangClosing", bool),
("ignore", "plugins.flake8.ignore", list),
("max-complexity", "plugins.flake8.maxComplexity", int),
("max-line-length", "plugins.flake8.maxLineLength", int),
("indent-size", "plugins.flake8.indentSize", int),
("select", "plugins.flake8.select", list),
("per-file-ignores", "plugins.flake8.perFileIgnores", list),
]
class Flake8Config(ConfigSource):
"""Parse flake8 configurations."""
def user_config(self):
config_file = self._user_config_file()
config = self.read_config_from_files([config_file])
return self.parse_config(config, CONFIG_KEY, OPTIONS)
def _user_config_file(self):
if self.is_windows:
return os.path.expanduser("~\\.flake8")
return os.path.join(self.xdg_home, "flake8")
def project_config(self, document_path):
files = find_parents(self.root_path, document_path, PROJECT_CONFIGS)
config = self.read_config_from_files(files)
return self.parse_config(config, CONFIG_KEY, OPTIONS)
@classmethod
def _parse_list_opt(cls, string):
if string.startswith("\n"):
return [s.strip().rstrip(",") for s in string.split("\n") if s.strip()]
return [s.strip() for s in string.split(",") if s.strip()]
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