Update app.py

app.py

@@ -3,7 +3,7 @@ import sys
 import subprocess
 from pathlib import Path
 
-# Hugging Face Spaces / CPU-only settings
+# Hugging Face Spaces / CPU-only environment setup
 os.environ["CUDA_VISIBLE_DEVICES"] = ""
 os.environ["GRADIO_SERVER_NAME"] = "0.0.0.0"
 os.environ["GRADIO_SERVER_PORT"] = "7860"
@@ -16,21 +16,19 @@ def run(cmd, cwd=None):
     print(">>>", " ".join(map(str, cmd)), flush=True)
     subprocess.check_call(cmd, cwd=cwd)
 
-# Clone the official RVC WebUI at build/start time so the Space stays small.
-if not (RVC_DIR / "infer-web.py").exists():
+# Step 1: Clone official RVC WebUI repository into /app/rvc before changing working directory
+if not RVC_DIR.exists() or not (RVC_DIR / "infer-web.py").exists():
     run([
         "git", "clone", "--depth", "1",
         "https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI.git",
         str(RVC_DIR)
     ])
 
-# Make RVC's Python modules importable.
+# Step 2: Make RVC's Python modules importable and change directory AFTER the repository is cloned
 sys.path.insert(0, str(RVC_DIR))
 os.chdir(RVC_DIR)
 
-# Download the inference-only pretrained assets once.
-# RVC's official repository documents hubert_base.pt and rmvpe.pt as required
-# inference assets.
+# Step 3: Download inference-only pretrained assets if missing
 hubert = RVC_DIR / "assets" / "hubert" / "hubert_base.pt"
 rmvpe = RVC_DIR / "assets" / "rmvpe" / "rmvpe.pt"
 
@@ -39,10 +37,10 @@ if not hubert.exists() or not rmvpe.exists():
     if downloader.exists():
         run([sys.executable, str(downloader)], cwd=RVC_DIR)
 
-# Start the official RVC WebUI on the Space's expected port.
+# Step 4: Start the RVC WebUI on Hugging Face Space port 7860
 run([
     sys.executable,
     "infer-web.py",
     "--pycmd", sys.executable,
     "--port", "7860",
-], cwd=RVC_DIR)
+], cwd=RVC_DIR)