app.py

"""
Hugging Face Space entry point for SoulX-Singer.
Downloads pretrained models from the Hub if needed, then launches the Gradio app.
"""

import os
from pathlib import Path

# Set matplotlib backend before any imports that might use it (required for headless environments)
import matplotlib
matplotlib.use('Agg')  # Use non-interactive backend

from ensure_models import ensure_pretrained_models

ROOT = Path(__file__).resolve().parent

if __name__ == "__main__":
    os.chdir(ROOT)
    ensure_pretrained_models()

    from webui import render_interface

    page = render_interface()
    page.queue()
    page.launch(
        server_name="0.0.0.0",
        server_port=int(os.environ.get("PORT", "7860")),
        share=True,
    )