[V3] Add sharding (#1027)

* EZ PZ sharding

* Add this little nugget

redbot/core/bot.py

@@ -6,14 +6,14 @@ from importlib.machinery import ModuleSpec
 from pathlib import Path
 
 import discord
-from discord.ext import commands
+from discord.ext.commands.bot import BotBase
 from discord.ext.commands import GroupMixin
 
 from .cog_manager import CogManager
 from . import Config, i18n, RedContext
 
 
-class Red(commands.Bot):
+class RedBase(BotBase):
     def __init__(self, cli_flags, bot_dir: Path=Path.cwd(), **kwargs):
         self._shutdown_mode = ExitCodes.CRITICAL
         self.db = Config.get_core_conf(force_registration=True)
@@ -86,18 +86,6 @@ class Red(commands.Bot):
     async def get_context(self, message, *, cls=RedContext):
         return await super().get_context(message, cls=cls)
 
-    async def shutdown(self, *, restart=False):
-        """Gracefully quits Red with exit code 0
-
-        If restart is True, the exit code will be 26 instead
-        Upon receiving that exit code, the launcher restarts Red"""
-        if not restart:
-            self._shutdown_mode = ExitCodes.SHUTDOWN
-        else:
-            self._shutdown_mode = ExitCodes.RESTART
-
-        await self.logout()
-
     def list_packages(self):
         """Lists packages present in the cogs the folder"""
         return os.listdir("cogs")
@@ -176,6 +164,23 @@ class Red(commands.Bot):
             # del sys.modules[name]
 
 
+class Red(RedBase, discord.AutoShardedClient):
+    """
+    You're welcome Caleb.
+    """
+    async def shutdown(self, *, restart=False):
+        """Gracefully quits Red with exit code 0
+
+        If restart is True, the exit code will be 26 instead
+        Upon receiving that exit code, the launcher restarts Red"""
+        if not restart:
+            self._shutdown_mode = ExitCodes.SHUTDOWN
+        else:
+            self._shutdown_mode = ExitCodes.RESTART
+
+        await self.logout()
+
+
 class ExitCodes(Enum):
     CRITICAL = 1
     SHUTDOWN = 0