| """Hugging Face Space entry point. | |
| HF Spaces auto-discovers `app.py` at the repo root and launches whatever | |
| Gradio interface it builds. Keep this file thin — real UI lives in | |
| `signbridge.space`. | |
| """ | |
| from __future__ import annotations | |
| import logging | |
| import os | |
| from dotenv import load_dotenv | |
| # CRITICAL: load .env BEFORE importing signbridge.* — the recognizer's | |
| # DEFAULT_VLM_MODEL constant is read from os.environ at module-load | |
| # time. If we waited until main(), env vars set in .env would never | |
| # reach the constant and the recognizer would fall back to a model | |
| # that doesn't exist on the AMD endpoint (404 Not Found). | |
| load_dotenv() | |
| logging.basicConfig( | |
| level=logging.INFO, | |
| format="%(asctime)s %(levelname)s %(name)s: %(message)s", | |
| ) | |
| from signbridge.space import build_demo # noqa: E402 | |
| def main() -> None: | |
| # Make gradio's `_check_localhost` pre-flight skip itself — on HF Spaces | |
| # Docker the loopback connect-back occasionally races the bind and trips | |
| # the "When localhost is not accessible" guard. Setting SYSTEM=spaces | |
| # mirrors what the gradio-SDK runtime sets and is the documented escape | |
| # hatch. share=True was used earlier as a backup but HF Spaces warns it | |
| # is unsupported; SYSTEM=spaces alone is now sufficient. | |
| os.environ.setdefault("SYSTEM", "spaces") | |
| demo = build_demo() | |
| demo.queue().launch( | |
| server_name=os.getenv("GRADIO_SERVER_NAME", "0.0.0.0"), | |
| server_port=int(os.getenv("GRADIO_SERVER_PORT", "7860")), | |
| show_error=True, | |
| ) | |
| if __name__ == "__main__": | |
| main() | |