Add confirmation prompt before overwriting existing encode.sh script

src/app.py

@@ -58,6 +58,13 @@ def main(
         stream.film_grain = film_grain
     export_data = " ".join(data.cmd())
     export_path = Path(filename).parent / "encode.sh"
+    # Confirm overwrite if script exists
+    if export_path.exists():
+        if not typer.confirm(f"'{export_path}' already exists. Overwrite? "):
+            typer.echo("Aborting.")
+            raise typer.Exit()
+        else:
+            export_path.unlink()
     write_shell_script(export_data, export_path)
     print(Path(filename).parent)
     print(" ".join(data.cmd()))