Update app.py

app.py

@@ -1,5 +1,6 @@
 import os
 import sys
+import shutil
 import subprocess
 from pathlib import Path
 
@@ -16,15 +17,22 @@ def run(cmd, cwd=None):
     print(">>>", " ".join(map(str, cmd)), flush=True)
     subprocess.check_call(cmd, cwd=cwd)
 
-# Ensure RVC directory exists
+# 1. Clone repository safely (cleaning up existing empty/broken dirs if present)
 if not (RVC_DIR / "infer-web.py").exists():
-    raise FileNotFoundError(f"RVC directory not found at {RVC_DIR}")
-
-# Set Python execution context to RVC root
+    if RVC_DIR.exists():
+        shutil.rmtree(RVC_DIR)
+    
+    run([
+        "git", "clone", "--depth", "1",
+        "https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI.git",
+        str(RVC_DIR)
+    ])
+
+# 2. Set execution context
 sys.path.insert(0, str(RVC_DIR))
 os.chdir(RVC_DIR)
 
-# Download required model assets if missing
+# 3. Download pretrained assets if missing
 hubert = RVC_DIR / "assets" / "hubert" / "hubert_base.pt"
 rmvpe = RVC_DIR / "assets" / "rmvpe" / "rmvpe.pt"
 
@@ -33,7 +41,7 @@ if not hubert.exists() or not rmvpe.exists():
     if downloader.exists():
         run([sys.executable, str(downloader)], cwd=RVC_DIR)
 
-# Start WebUI server
+# 4. Launch RVC WebUI
 run([
     sys.executable,
     "infer-web.py",