feat: enable litep2p for pc demo node

Author: alexromanov

demo/node/src/command/mod.rs

@@ -140,9 +140,7 @@ pub fn run() -> sc_cli::Result<()> {
 		None => {
 			let runner = cli.create_runner(&cli.run)?;
 			runner.run_node_until_exit(|config| async move {
-				service::new_full::<sc_network::NetworkWorker<_, _>>(config)
-					.await
-					.map_err(sc_cli::Error::Service)
+				service::new_full(config).await.map_err(sc_cli::Error::Service)
 			})
 		},
 	}

demo/node/src/service.rs

@@ -3,6 +3,7 @@
 use crate::data_sources::DataSources;
 use crate::inherent_data::{CreateInherentDataConfig, ProposalCIDP, VerifierCIDP};
 use crate::rpc::GrandpaDeps;
+use futures::TryFutureExt;
 use partner_chains_db_sync_data_sources::McFollowerMetrics;
 use partner_chains_db_sync_data_sources::register_metrics_warn_errors;
 use partner_chains_demo_runtime::{self, RuntimeApi, opaque::Block};
@@ -161,7 +162,20 @@ pub fn new_partial(
 	})
 }
 
-pub async fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Hash>>(
+pub async fn new_full(config: Configuration) -> Result<TaskManager, ServiceError> {
+	let task_manager = match config.network.network_backend {
+		sc_network::config::NetworkBackendType::Libp2p => {
+			new_full_base::<sc_network::NetworkWorker<_, _>>(config).await?
+		},
+		sc_network::config::NetworkBackendType::Litep2p => {
+			new_full_base::<sc_network::Litep2pNetworkBackend>(config).await?
+		},
+	};
+
+	Ok(task_manager)
+}
+
+pub async fn new_full_base<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Hash>>(
 	config: Configuration,
 ) -> Result<TaskManager, ServiceError> {
 	if let Some(git_hash) = std::option_env!("EARTHLY_GIT_HASH") {