From 46f44d430eb693d5ecae57dab8d1037c5bfcfd3d Mon Sep 17 00:00:00 2001
From: milen <94537774+taratorio@users.noreply.github.com>
Date: Wed, 20 Nov 2024 10:32:41 +0000
Subject: [PATCH] cl: fix caplin interop with lighthouse vc on gnosis (#12800)

Lighthouse VC was throwing the below error when running a validator with
Caplin on Chiado:
```
The minimal/mainnet spec type of the beacon node does not match the validator
```

After a bit of debugging I found that it was because Lighthouse expects
the preset base to be set to "gnosis"
---
 cl/clparams/config.go              | 2 ++
 eth/stagedsync/stages/sync_mode.go | 6 +-----
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/cl/clparams/config.go b/cl/clparams/config.go
index b9b52f37722..61c62e4eddf 100644
--- a/cl/clparams/config.go
+++ b/cl/clparams/config.go
@@ -885,6 +885,7 @@ func holeskyConfig() BeaconChainConfig {
 
 func gnosisConfig() BeaconChainConfig {
 	cfg := MainnetBeaconConfig
+	cfg.PresetBase = "gnosis"
 	cfg.MinGenesisTime = 1638968400
 	cfg.MinGenesisActiveValidatorCount = 4096
 	cfg.GenesisDelay = 6000
@@ -922,6 +923,7 @@ func gnosisConfig() BeaconChainConfig {
 
 func chiadoConfig() BeaconChainConfig {
 	cfg := MainnetBeaconConfig
+	cfg.PresetBase = "gnosis"
 	cfg.MinGenesisTime = 1665396000
 	cfg.MinGenesisActiveValidatorCount = 6000
 	cfg.GenesisDelay = 300
diff --git a/eth/stagedsync/stages/sync_mode.go b/eth/stagedsync/stages/sync_mode.go
index f20c9ce7e67..b11be6b8416 100644
--- a/eth/stagedsync/stages/sync_mode.go
+++ b/eth/stagedsync/stages/sync_mode.go
@@ -1,9 +1,5 @@
 package stages
 
-import (
-	"fmt"
-)
-
 type Mode int8 // in which staged sync can run
 
 const (
@@ -37,6 +33,6 @@ func ModeFromString(s string) Mode { //nolint
 	case "UnknownMode":
 		return ModeUnknown
 	default:
-		panic(fmt.Sprintf("unexpected mode string: %s", s))
+		panic("unexpected mode string: " + s)
 	}
 }