docs: 添加了命令手册

liteyuki/liteyuki_main/reloader.py

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+import threading
+from multiprocessing import get_context
+
+import nonebot
+from nonebot import logger
+from typing import List, Optional
+
+from nonebot import get_driver
+from pydantic import BaseSettings
+
+
+reboot_grace_time_limit: int = 20
+
+_nb_run = nonebot.run
+
+
+class Reloader:
+    event: threading.Event = None
+
+    @classmethod
+    def reload(cls, delay: int = 0):
+        if cls.event is None:
+            raise RuntimeError()
+        if delay > 0:
+            threading.Timer(delay, function=cls.event.set).start()
+            return
+        cls.event.set()
+
+
+def _run(ev: threading.Event, *args, **kwargs):
+    Reloader.event = ev
+    _nb_run(*args, **kwargs)
+
+
+def run(*args, **kwargs):
+    should_exit = False
+    ctx = get_context("spawn")
+    while not should_exit:
+        event = ctx.Event()
+        process = ctx.Process(
+            target=_run,
+            args=(
+                    event,
+                    *args,
+            ),
+            kwargs=kwargs,
+        )
+        process.start()
+        while not should_exit:
+            if event.wait(1):
+                logger.info("Receive reboot event")
+                process.terminate()
+                process.join(reboot_grace_time_limit)
+                if process.is_alive():
+                    logger.warning(
+                        f"Cannot shutdown gracefully in {reboot_grace_time_limit} second, force kill process."
+                    )
+                    process.kill()
+                break
+            elif process.is_alive():
+                continue
+            else:
+                # Process stoped without setting event
+                should_exit = True
+
+
+nonebot.run = run