Update app.py

app.py

@@ -58,7 +58,26 @@ def log_env_for_audio():
     print("[ENV] TTS_ENGINE =", os.getenv("TTS_ENGINE", "(unset)"))
     print("[ENV] PIPER_MODEL=", os.getenv("PIPER_MODEL", "(unset)"))
     print("[ENV] PIPER_BIN  =", os.getenv("PIPER_BIN", "(unset)"))
+    
+import os, stat
 
+def ensure_piper_ready():
+    bin_path = os.getenv("PIPER_BIN", "piper")
+    model = os.getenv("PIPER_MODEL")
+    espeak = os.getenv("ESPEAK_DATA_PATH")
+
+    print(f"[PIPER] BIN={bin_path} exists={os.path.exists(bin_path)}")
+    print(f"[PIPER] MODEL={model} exists={os.path.exists(model) if model else None}")
+    print(f"[PIPER] ESPEAK_DATA_PATH={espeak} exists={os.path.exists(espeak) if espeak else None}")
+
+    # If PIPER_BIN is an absolute/relative file in repo, make it executable.
+    if bin_path and os.path.isfile(bin_path):
+        try:
+            st = os.stat(bin_path)
+            os.chmod(bin_path, st.st_mode | stat.S_IEXEC)
+            print("[PIPER] chmod +x applied to binary")
+        except Exception as e:
+            print("[PIPER] chmod failed:", e)
 
 # -------------
 # Application
@@ -74,7 +93,7 @@ def main():
     # ensure_model()
 
     # Make sure bundled Piper can run (no downloads on Spaces)
-    _ensure_exec(os.getenv("PIPER_BIN", ""))
+    ensure_piper_ready()
 
     # Launch Gradio
     demo = build_demo()