LZ4 for vag not supported yet

src/Tools/jaby_engine_fconv/src/main.rs

@@ -1,7 +1,7 @@
 use clap::{Parser, Subcommand};
 use jaby_engine_fconv::{audio::*, images::*, nothing};
 use std::path::PathBuf;
-use tool_helper::{Error, exit_with_error};
+use tool_helper::{exit_with_error, print_warning, Error};
 
 #[derive(Parser)]
 #[clap(about = "Converts files to various JabyEngine related file formats", long_about = None)]
@@ -89,6 +89,10 @@ fn run_external_conversion(cmd: CommandLine) -> Result<(), Error> {
     let input_file  = cmd.input_file.ok_or(Error::from_str("Input has to be a file"))?;
     let output_file = cmd.output_file.ok_or(Error::from_str("Output has to be a file"))?;
 
+    if cmd.compress_lz4 {
+        print_warning("LZ4 compression not supported for external commands".to_owned());
+    }
+
     match cmd.sub_command {
         SubCommands::VAG(args) => vag::convert(args, input_file, output_file),
         SubCommands::XA(args)  => xa::convert(args, input_file, output_file),