Add commitment Root variant, and add fleshed out --commitment arg to Cli (#9806)

automerge

core/src/rpc.rs

@@ -87,6 +87,10 @@ impl JsonRpcRequestProcessor {
             let bank = r_bank_forks.working_bank();
             debug!("RPC using working_bank: {:?}", bank.slot());
             Ok(bank)
+        } else if commitment.is_some() && commitment.unwrap().commitment == CommitmentLevel::Root {
+            let slot = r_bank_forks.root();
+            debug!("RPC using node root: {:?}", slot);
+            Ok(r_bank_forks.get(slot).cloned().unwrap())
         } else {
             let cluster_root = self
                 .block_commitment_cache
@@ -169,9 +173,7 @@ impl JsonRpcRequestProcessor {
     pub fn get_epoch_schedule(&self) -> Result<EpochSchedule> {
         // Since epoch schedule data comes from the genesis config, any commitment level should be
         // fine
-        Ok(*self
-            .bank(Some(CommitmentConfig::recent()))?
-            .epoch_schedule())
+        Ok(*self.bank(Some(CommitmentConfig::root()))?.epoch_schedule())
     }
 
     pub fn get_balance(