[helper] add checks for if modules are empty.

crates/rooch/src/commands/move_cli/commands/publish.rs

@@ -72,12 +72,16 @@ impl CommandAction<ExecuteTransactionResponseView> for Publish {
 
  // let modules = package.root_modules_map().iter_modules_owned();
  let modules = package.root_modules_map();
-
- // let pkg_address = modules..iter_modules_owned() modules[0].self_id().address().to_owned();
- let pkg_address = modules.iter_modules_owned()[0]
- .self_id()
- .address()
- .to_owned();
+ let empty_modules = modules.iter_modules_owned().is_empty();
+ let pkg_address = if !empty_modules {
+ let first_module = &modules.iter_modules_owned()[0];
+ first_module.self_id().address().to_owned()
+ } else {
+ return Err(RoochError::MoveCompilationError(format!(
+ "compiling move modules error! Is the project or module empty: {:?}",
+ empty_modules,
+ )));
+ };
  let mut bundles: Vec<Vec<u8>> = vec![];
  // let sorted_modules = Self::order_modules(modules)?;
  let sorted_modules = sort_by_dependency_order(modules.iter_modules())?;