node: Clean up change-shard output

Author: erayack

node/src/manager/commands/chain.rs

@@ -261,7 +261,7 @@ pub async fn change_block_cache_shard(
         .await
         .ok_or_else(|| anyhow!("unknown chain: {}", &chain_name))?;
     let ident = chain_store.chain_identifier().await?;
-    let target_shard = Shard::new(shard.clone())?;
+    let target_shard = Shard::new(shard)?;
 
     let reuse_existing_backup = match existing_backup.as_ref() {
         None => false,
@@ -310,14 +310,11 @@ pub async fn change_block_cache_shard(
         None
     };
 
-    let allocated_chain = if reuse_existing_backup {
-        None
-    } else {
+    if !reuse_existing_backup {
         let chain =
             BlockStore::allocate_chain(&mut conn, &chain_name, &target_shard, &ident).await?;
         store.add_chain_store(&chain, true).await?;
-        Some(chain)
-    };
+    }
 
     let temp_backup_name = format!("{chain_name}-old-temp");
     if reuse_existing_backup && find_chain(&mut conn, &temp_backup_name).await?.is_some() {
@@ -366,23 +363,8 @@ pub async fn change_block_cache_shard(
 
     println!(
         "Changed block cache shard for {} from {} to {}",
-        chain_name, old_shard, shard
+        chain_name, old_shard, target_shard
     );
-    println!("Latest backup recorded as `{}`", canonical_backup_name);
-
-    if reuse_existing_backup {
-        println!(
-            "Reused existing backup `{}` as the active `{}` chain",
-            canonical_backup_name, chain_name
-        );
-    }
-
-    if allocated_chain.is_some() {
-        println!(
-            "Allocated new chain state for `{}` on shard {}",
-            chain_name, shard
-        );
-    }
 
     Ok(())
 }