espnet3.demo.pack.pack_demo

source

espnet3.demo.pack.pack_demo(system) → Path

Package demo assets and configs into a runnable demo directory.

This stage prepares a self-contained directory suitable for launching a Gradio demo (e.g., on Hugging Face Spaces). It writes:

• demo.yaml (resolved and rewritten for the packaged directory)
• config/infer.yaml (resolved inference config)
• app.py and requirements.txt (via setup_demo_assets())
• Optional extra files configured in demo.yaml.

• Parameters:system – System instance that exposes demo_config and related paths.
• Returns: The created demo directory.
• Return type: Path
• Raises:
  • RuntimeError – If the system has no demo_config or required fields.
  • ValueError – If an inference provider cannot be resolved or configs are missing.

Example

>>> demo_dir = pack_demo(system)
>>> (demo_dir / "app.py").exists()
True