Handle case when user is offline

- Before, an internet connection was implicitly required to run the launcher after the first launch when setting up ULWGL. This commit makes it so after the intitial setup, when the user is offline, the launcher will not hang indefinitely and will instead proceed to running the user's game. Now, A RuntimeError will only be raised if ULWGL has not been setup and the user is offline.

- Closes #60

ULWGL/ulwgl_run.py

@@ -287,7 +287,12 @@ def main() -> int:  # noqa: D103
     if "ULWGL_LOG" in os.environ:
         set_log()
 
-    setup_ulwgl(root, local)
+    try:
+        setup_ulwgl(root, local)
+    except TimeoutError:
+        if not local.exists() or not any(local.iterdir()):
+            err: str = "ULWGL has not been setup for the user\nAn internet connection is required to setup ULWGL"
+            raise RuntimeError(err)
 
     if isinstance(args, Namespace) and getattr(args, "config", None):
         set_env_toml(env, args)

ULWGL/ulwgl_util.py

@@ -12,6 +12,7 @@
 from urllib.request import urlopen
 from ssl import create_default_context
 from http.client import HTTPResponse, HTTPException
+from socket import create_connection
 
 
 class UnixUser:
@@ -147,6 +148,12 @@ def setup_ulwgl(root: Path, local: Path) -> None:
     log.debug(f"Root: {root}")
     log.debug(f"Local: {local}")
 
+    try:
+        create_connection(("1.1.1.1", 80), timeout=1)
+    except TimeoutError:
+        log.debug("User is offline")
+        raise
+
     json: Dict[str, Any] = None
     steam_compat: Path = Path.home().joinpath(".local/share/Steam/compatibilitytools.d")