Add log for file announcement

node/router/src/libp2p_event_handler.rs

@@ -325,6 +325,15 @@ impl Libp2pEventHandler {
                 self.on_find_chunks(msg).await
             }
             PubsubMessage::AnnounceFile(msgs) => {
+                let txs = msgs
+                    .iter()
+                    .map(|file| file.tx_ids.iter().map(|x| x.seq).collect::<Vec<u64>>())
+                    .collect::<Vec<Vec<u64>>>();
+                info!(
+                    "qbit: received file announcement, propagation={}, source={}, txs={:?}",
+                    propagation_source, source, txs
+                );
+
                 metrics::LIBP2P_HANDLE_PUBSUB_ANNOUNCE_FILE.mark(1);
 
                 for msg in msgs {