improve logs

Author: 0xmountaintop

eth/tracers/api_blocktrace.go

@@ -3,7 +3,6 @@ package tracers
 import (
 	"context"
 	"errors"
-	"fmt"
 
 	"github.com/scroll-tech/go-ethereum/consensus"
 	"github.com/scroll-tech/go-ethereum/consensus/misc"
@@ -111,17 +110,18 @@ func (api *API) createTraceEnvAndGetBlockTrace(ctx context.Context, config *Trac
 	}
 
 	chaindb := api.backend.ChainDb()
+	// create a copy of api.backend.ChainConfig to modify
 	chainConfig := new(params.ChainConfig)
 	*chainConfig = *api.backend.ChainConfig()
 	if config != nil && config.Overrides != nil {
 		// the merge.Merge seems not work well
-		// mergo.Merge(&chainConfig, config.Overrides, mergo.WithOverride)
+		// mergo.Merge(chainConfig, config.Overrides, mergo.WithOverride)
 		if curie := config.Overrides.CurieBlock; curie != nil {
 			chainConfig.CurieBlock = curie
 			misc.ApplyCurieHardFork(statedb)
 			statedb.Commit(true)
 		}
-		fmt.Printf("trace config overrided: %v, config.Overrides: %v", chainConfig, config.Overrides)
+		log.Info("chainConfig overrided by traceConfig.Overrides", "chainConfig", chainConfig, "config.Overrides", config.Overrides)
 	}
 	return api.scrollTracerWrapper.CreateTraceEnvAndGetBlockTrace(chainConfig, api.chainContext(ctx), api.backend.Engine(), chaindb, statedb, parent, block, true)
 }