refactor: custom async loops based on platform

pyproject.toml

@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "spotify-to-musi"
 description = "Transfer Spotify playlists to Musi."
-version = "2.0.0rc3"
+version = "2.0.0rc4"
 readme = "README.md"
 license = "MIT"
 authors = ["Hexiro <[email protected]>"]
@@ -34,6 +34,7 @@ pyfy = "^2.2.0"
 sanic = "^23.3.0"
 async-cache = "^1.1.1"
 typing-extensions = {version = "^4.5.0", python = "<3.11"}
+uvloop = {version = "^0.17.0", platform = "linux"}
 
 [tool.poetry.scripts]
 spotify-to-musi = "spotify_to_musi.__main__:cli"

spotify_to_musi/__main__.py

@@ -3,6 +3,7 @@
 
 import asyncio
 import functools
+import sys
 import typing as t
 
 import pyfy.excs
@@ -25,6 +26,14 @@ def async_cmd(func: t.Callable) -> t.Callable:
 
     @functools.wraps(func)
     def wrapper(*args: t.Any, **kwargs: t.Any) -> t.Any:
+        if sys.platform == "win32":
+            # Set the policy to prevent "Event loop is closed" error on Windows - https://github.com/encode/httpx/issues/914
+            asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+        elif sys.platform == "linux":
+            import uvloop
+
+            uvloop.install()
+
         return asyncio.run(func(*args, **kwargs))
 
     return wrapper