overseer: simplify debugging some more

.gitignore

@@ -12,3 +12,4 @@ polkadot.*
 .DS_Store
 .cargo
 .env
+**/overlord-expansion.rs

node/overseer/overseer-gen/proc-macro/src/lib.rs

@@ -98,12 +98,11 @@ pub(crate) fn impl_overseer_gen(
 	additive.extend(impl_message_wrapper_enum(&info)?);
 	additive.extend(impl_dispatch(&info));
 
-	#[cfg(feature = "expansion")]
-	{
+	if cfg!(feature = "expansion") {
 		use std::io::Write;
 
 		let cwd = std::env::current_dir().unwrap();
-		let path: std::path::PathBuf = cwd.join("overlord-expansion.rs");
+		let path = cwd.join("overlord-expansion.rs");
 		let mut f = std::fs::OpenOptions::new()
 			.write(true)
 			.create(true)
@@ -120,6 +119,12 @@ pub(crate) fn impl_overseer_gen(
 			.current_dir(cwd)
 			.spawn()
 			.expect("Running rustfmt works. qed");
+
+		let path = path.display().to_string();
+		Ok(quote! {
+			include!( #path );
+		})
+	} else {
+		Ok(additive)
 	}
-	Ok(additive)
 }