Update autoreload to Django 3.2 (#775)

* Update autoreload stub to Django 3.2

* Fix some subclass return types

* types for watchmanreloader attributes

* Don't reference an redundant attribute in WatchmanReloader

django-stubs/utils/autoreload.pyi

@@ -1,66 +1,71 @@
+import os
 import threading
 import types
 from pathlib import Path
-from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Set, Tuple, Union
+from typing import Any, Callable, Dict, Iterable, Iterator, Optional, Set, Tuple, Union
 
 from django.apps.registry import Apps
+from django.dispatch import Signal
 
-USE_INOTIFY: bool
-fd: Any
-RUN_RELOADER: bool
-FILE_MODIFIED: int
-I18N_MODIFIED: int
+_PathCompatible = Union[os.PathLike, str, bytes]
 
-def gen_filenames(only_new: bool = ...) -> List[str]: ...
-def clean_files(filelist: List[Optional[str]]) -> List[str]: ...
-def reset_translations() -> None: ...
-def inotify_code_changed(): ...
-def code_changed(): ...
-def check_errors(fn: Callable) -> Callable: ...
+autoreload_started: Signal
+file_changed: Signal
+DJANGO_AUTORELOAD_ENV: str
+
+def is_django_module(module: types.ModuleType): ...
+def is_django_path(path): ...
+def check_errors(fn): ...
 def raise_last_exception() -> None: ...
 def ensure_echo_on() -> None: ...
-def reloader_thread() -> None: ...
-def restart_with_reloader() -> int: ...
-def python_reloader(main_func: Any, args: Any, kwargs: Any) -> None: ...
-def main(main_func: Any, args: Optional[Any] = ..., kwargs: Optional[Any] = ...) -> None: ...
 def iter_all_python_module_files() -> Set[Path]: ...
 def iter_modules_and_files(
-    modules: Iterable[types.ModuleType], extra_files: Iterable[Union[str, Path]]
+    modules: Iterable[types.ModuleType], extra_files: Iterable[_PathCompatible]
 ) -> Set[Path]: ...
-def common_roots(paths: Iterable[Path]) -> Iterator[Path]: ...
+def common_roots(paths: Iterable[_PathCompatible]) -> Iterator[Path]: ...
 def sys_path_directories() -> Iterator[Path]: ...
+def get_child_arguments(): ...
+def trigger_reload(filename) -> None: ...
+def restart_with_reloader() -> int: ...
 
 class BaseReloader:
     extra_files: Set[Path]
     directory_globs: Dict[Path, Set[str]]
     def __init__(self) -> None: ...
-    def watch_dir(self, path: Union[str, Path], glob: str) -> None: ...
-    def watch_file(self, path: Union[str, Path]) -> None: ...
+    def watch_dir(self, path: _PathCompatible, glob: str) -> None: ...
+    def watch_file(self, path: _PathCompatible) -> None: ...
     def watched_files(self, include_globs: bool = ...) -> Iterator[Path]: ...
     def wait_for_apps_ready(self, app_reg: Apps, django_main_thread: threading.Thread) -> bool: ...
     def run(self, django_main_thread: threading.Thread) -> None: ...
     def run_loop(self) -> None: ...
     def tick(self) -> Iterator[None]: ...
     @classmethod
-    def check_availability(cls) -> bool: ...
-    def notify_file_changed(self, path: Union[str, Path]) -> None: ...
+    def check_availability(cls) -> Optional[bool]: ...
+    def notify_file_changed(self, path: _PathCompatible) -> None: ...
     @property
     def should_stop(self) -> bool: ...
     def stop(self) -> None: ...
 
 class StatReloader(BaseReloader):
-    SLEEP_TIME: int = ...
+    SLEEP_TIME: int
     def snapshot_files(self) -> Iterator[Tuple[Path, int]]: ...
+    @classmethod
+    def check_availability(cls) -> bool: ...
 
 class WatchmanUnavailable(RuntimeError): ...
 
 class WatchmanReloader(BaseReloader):
+    processed_request: threading.Event
+    client_timeout: int
+    def __init__(self) -> None: ...
     @property
     def client(self) -> Any: ...
     def watched_roots(self, watched_files: Iterable[Path]) -> Set[Path]: ...
     def update_watches(self) -> None: ...
     def request_processed(self, **kwargs: Any) -> None: ...
     def check_server_status(self, inner_ex: Optional[BaseException] = ...) -> bool: ...
+    @classmethod
+    def check_availability(cls) -> None: ...
 
 def get_reloader() -> BaseReloader: ...
 def start_django(reloader: BaseReloader, main_func: Callable, *args: Any, **kwargs: Any) -> None: ...