import os
from pathlib import Path
from typing import Iterable, Iterator, List, Set
from isort.settings import Config
def find(
paths: Iterable[str], config: Config, skipped: List[str], broken: List[str]
) -> Iterator[str]:
"""Fines and provides an iterator for all Python source files defined in paths."""
visited_dirs: Set[Path] = set()
for path in paths:
if os.path.isdir(path):
for dirpath, dirnames, filenames in os.walk(
path, topdown=True, followlinks=config.follow_links
):
base_path = Path(dirpath)
for dirname in list(dirnames):
full_path = base_path / dirname
resolved_path = full_path.resolve()
if config.is_skipped(full_path):
skipped.append(dirname)
dirnames.remove(dirname)
else:
if resolved_path in visited_dirs: # pragma: no cover
dirnames.remove(dirname)
visited_dirs.add(resolved_path)
for filename in filenames:
filepath = os.path.join(dirpath, filename)
if config.is_supported_filetype(filepath):
if config.is_skipped(Path(os.path.abspath(filepath))):
skipped.append(filename)
else:
yield filepath
elif not os.path.exists(path):
broken.append(path)
else:
yield path
