Clone NeuTTS-Air at runtime to fix build error

app.py

@@ -2,19 +2,29 @@ import spaces
 import os
 import sys
 import tempfile
+import subprocess
 import numpy as np
 import gradio as gr
 import soundfile as sf
 
+# Clone NeuTTS-Air repository if not present
+NEUTTS_DIR = "neutts-air"
+if not os.path.exists(NEUTTS_DIR):
+    try:
+        subprocess.run(["git", "clone", "https://github.com/neuphonic/neutts-air.git", NEUTTS_DIR], check=True)
+        print(f"Successfully cloned NeuTTS-Air to {NEUTTS_DIR}")
+    except Exception as e:
+        print(f"Warning: Could not clone NeuTTS-Air: {e}")
+
 # Add NeuTTS-Air to path
-sys.path.append("neutts-air")
+sys.path.append(NEUTTS_DIR)
 
 # Global variables for lazy loading
 kokoro_pipe = None
 neutts_model = None
 
 # NeuTTS-Air configuration
-SAMPLES_PATH = os.path.join(os.getcwd(), "neutts-air", "samples")
+SAMPLES_PATH = os.path.join(os.getcwd(), NEUTTS_DIR, "samples")
 DEFAULT_REF_TEXT = "So I'm live on radio. And I say, well, my dear friend James here clearly, and the whole room just froze. Turns out I'd completely misspoken and mentioned our other friend."
 DEFAULT_REF_PATH = os.path.join(SAMPLES_PATH, "dave.wav")
 DEFAULT_GEN_TEXT = "My name is Dave, and um, I'm from London."