Deploy Space app files

app.py

@@ -550,7 +550,7 @@ def build_app(instance_df: pd.DataFrame, preview_df: pd.DataFrame) -> gr.Blocks:
     return demo
 
 
-def main() -> None:
+def create_demo() -> gr.Blocks:
     setup_logging()
     logger.info("DATASET_REPO = %r", DATASET_REPO)
     logger.info("HF_TOKEN set = %s, length = %d", HF_TOKEN is not None, len(HF_TOKEN) if HF_TOKEN else 0)
@@ -558,9 +558,26 @@ def main() -> None:
     preview_df = load_preview_dataframe()
     instance_df = build_preview_instance_dataframe(preview_df)
     logger.info("Loaded %d preview rows for %d preview instance(s).", len(preview_df), len(instance_df))
-    app = build_app(instance_df, preview_df)
-    app.launch()
+    return build_app(instance_df, preview_df)
+
+
+def gradio_hot_reload_enabled() -> bool:
+    return os.environ.get("GRADIO_HOT_RELOAD", "false").lower() in {"1", "true", "yes"}
+
+
+def main() -> None:
+    launch_kwargs: dict[str, Any] = {}
+    server_name = os.environ.get("GRADIO_SERVER_NAME")
+    server_port = os.environ.get("GRADIO_SERVER_PORT") or os.environ.get("PORT")
+    if server_name:
+        launch_kwargs["server_name"] = server_name
+    if server_port:
+        launch_kwargs["server_port"] = int(server_port)
+    demo.launch(**launch_kwargs)
+
+
+demo = create_demo()
 
 
-if __name__ == "__main__":
+if __name__ == "__main__" and not gradio_hot_reload_enabled():
     main()