Override network config with the one in database

cmd/juno/dbcmd.go

@@ -6,10 +6,10 @@ import (
 	"os"
 
 	"github.com/NethermindEth/juno/blockchain"
-	"github.com/NethermindEth/juno/core"
 	"github.com/NethermindEth/juno/core/felt"
 	"github.com/NethermindEth/juno/db"
 	"github.com/NethermindEth/juno/db/pebble"
+	"github.com/NethermindEth/juno/node"
 	"github.com/NethermindEth/juno/utils"
 	"github.com/olekukonko/tablewriter"
 	"github.com/spf13/cobra"
@@ -97,7 +97,7 @@ func dbInfo(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("failed to get the state update: %v", err)
 	}
 
-	info.Network = getNetwork(headBlock, stateUpdate.StateDiff)
+	info.Network = node.GetNetwork(headBlock, stateUpdate.StateDiff).Name
 	info.ChainHeight = headBlock.Number
 	info.LatestBlockHash = headBlock.Hash
 	info.LatestStateRoot = headBlock.GlobalStateRoot
@@ -235,25 +235,6 @@ func dbSize(cmd *cobra.Command, args []string) error {
 	return nil
 }
 
-func getNetwork(head *core.Block, stateDiff *core.StateDiff) string {
-	networks := []*utils.Network{
-		&utils.Mainnet,
-		&utils.Sepolia,
-		&utils.Goerli,
-		&utils.Goerli2,
-		&utils.Integration,
-		&utils.SepoliaIntegration,
-	}
-
-	for _, network := range networks {
-		if _, err := core.VerifyBlockHash(head, network, stateDiff); err == nil {
-			return network.Name
-		}
-	}
-
-	return "unknown"
-}
-
 func openDB(path string) (db.DB, error) {
 	_, err := os.Stat(path)
 	if os.IsNotExist(err) {

node/node.go

@@ -141,9 +141,12 @@ func New(cfg *Config, version string) (*Node, error) { //nolint:gocyclo,funlen
 			return nil, err
 		}
 
-		// We assume that there is at least one transaction in the block or that it is a pre-0.7 block.
-		if _, err = core.VerifyBlockHash(head, &cfg.Network, stateUpdate.StateDiff); err != nil {
-			return nil, errors.New("unable to verify latest block hash; are the database and --network option compatible?")
+		network := GetNetwork(head, stateUpdate.StateDiff)
+		if network != nil {
+			if cfg.Network.Name != network.Name {
+				log.Warnw("Network mismatch between config and database. Overriding config", "config", cfg.Network.Name, "database", network.Name)
+			}
+			cfg.Network = *network
 		}
 	}
 
@@ -382,3 +385,22 @@ func (n *Node) Run(ctx context.Context) {
 func (n *Node) Config() Config {
 	return *n.cfg
 }
+
+func GetNetwork(head *core.Block, stateDiff *core.StateDiff) *utils.Network {
+	networks := []*utils.Network{
+		&utils.Mainnet,
+		&utils.Sepolia,
+		&utils.Goerli,
+		&utils.Goerli2,
+		&utils.Integration,
+		&utils.SepoliaIntegration,
+	}
+
+	for _, network := range networks {
+		if _, err := core.VerifyBlockHash(head, network, stateDiff); err == nil {
+			return network
+		}
+	}
+
+	return nil
+}