Use Ruff and fix all its warnings

discord_embed/settings.py

@@ -1,37 +1,14 @@
-import os
-import pathlib
-import sys
+from __future__ import annotations
 
-from dotenv import load_dotenv
+import os
+from pathlib import Path
+
+from dotenv import find_dotenv, load_dotenv
 
 # Load environment variables
-load_dotenv()
+load_dotenv(find_dotenv(), verbose=True)
 
-# Check if user has added a domain to the environment.
-try:
-    serve_domain: str = os.environ["SERVE_DOMAIN"]
-except KeyError:
-    sys.exit("discord-embed: Environment variable 'SERVE_DOMAIN' is missing!")
-
-# Remove trailing slash from domain
-if serve_domain.endswith("/"):
-    serve_domain = serve_domain[:-1]
-
-# Check if we have a folder for uploads.
-try:
-    upload_folder: str = os.environ["UPLOAD_FOLDER"]
-except KeyError:
-    sys.exit("Environment variable 'UPLOAD_FOLDER' is missing!")
-
-# Create upload_folder if it doesn't exist.
-pathlib.Path(upload_folder).mkdir(parents=True, exist_ok=True)
-
-# Remove trailing slash from upload_folder
-if upload_folder.endswith("/"):
-    upload_folder = upload_folder[:-1]
-
-# Discord webhook URL
-try:
-    webhook_url: str = os.environ["WEBHOOK_URL"]
-except KeyError:
-    sys.exit("Environment variable 'WEBHOOK_URL' is missing!")
+webhook_url: str = os.environ["WEBHOOK_URL"]
+serve_domain: str = os.environ["SERVE_DOMAIN"].removesuffix("/")
+upload_folder: str = os.environ["UPLOAD_FOLDER"].removesuffix("/")
+Path(upload_folder).mkdir(parents=True, exist_ok=True)