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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
import configparser
import os
from typing import Iterator, Optional
import toml
from toml import TomlDecodeError
def _toml_has_config(path):
with open(path, encoding="utf-8") as toml_handle:
try:
content = toml.load(toml_handle)
except TomlDecodeError as error:
print(f"Failed to load '{path}': {error}")
return False
try:
content["tool"]["pylint"]
except KeyError:
return False
return True
def _cfg_has_config(path):
parser = configparser.ConfigParser()
parser.read(path, encoding="utf-8")
return any(section.startswith("pylint.") for section in parser.sections())
def find_default_config_files() -> Iterator[str]:
"""Find all possible config files."""
rc_names = ("pylintrc", ".pylintrc")
config_names = rc_names + ("pyproject.toml", "setup.cfg")
for config_name in config_names:
if os.path.isfile(config_name):
if config_name.endswith(".toml") and not _toml_has_config(config_name):
continue
if config_name.endswith(".cfg") and not _cfg_has_config(config_name):
continue
yield os.path.abspath(config_name)
if os.path.isfile("__init__.py"):
curdir = os.path.abspath(os.getcwd())
while os.path.isfile(os.path.join(curdir, "__init__.py")):
curdir = os.path.abspath(os.path.join(curdir, ".."))
for rc_name in rc_names:
rc_path = os.path.join(curdir, rc_name)
if os.path.isfile(rc_path):
yield rc_path
if "PYLINTRC" in os.environ and os.path.exists(os.environ["PYLINTRC"]):
if os.path.isfile(os.environ["PYLINTRC"]):
yield os.environ["PYLINTRC"]
else:
user_home = os.path.expanduser("~")
if user_home not in ("~", "/root"):
home_rc = os.path.join(user_home, ".pylintrc")
if os.path.isfile(home_rc):
yield home_rc
home_rc = os.path.join(user_home, ".config", "pylintrc")
if os.path.isfile(home_rc):
yield home_rc
if os.path.isfile("/etc/pylintrc"):
yield "/etc/pylintrc"
def find_pylintrc() -> Optional[str]:
"""Search the pylint rc file and return its path if it finds it, else return None"""
for config_file in find_default_config_files():
if config_file.endswith("pylintrc"):
return config_file
return None
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