cmd, eth: switch the dev synctarget to hash from block (#28209)

* cmd, eth: switch the dev synctarget to hash from block

* cmd/utils, eth/catalyst: terminate node wyen synctarget reached

cmd/geth/config.go

@@ -32,6 +32,8 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/scwallet"
 	"github.com/ethereum/go-ethereum/accounts/usbwallet"
 	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/eth/catalyst"
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/eth/ethconfig"
@@ -199,17 +201,18 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
 	if ctx.IsSet(utils.GraphQLEnabledFlag.Name) {
 		utils.RegisterGraphQLService(stack, backend, filterSystem, &cfg.Node)
 	}
-
 	// Add the Ethereum Stats daemon if requested.
 	if cfg.Ethstats.URL != "" {
 		utils.RegisterEthStatsService(stack, backend, cfg.Ethstats.URL)
 	}
-
 	// Configure full-sync tester service if requested
-	if ctx.IsSet(utils.SyncTargetFlag.Name) && cfg.Eth.SyncMode == downloader.FullSync {
-		utils.RegisterFullSyncTester(stack, eth, ctx.Path(utils.SyncTargetFlag.Name))
+	if ctx.IsSet(utils.SyncTargetFlag.Name) {
+		hex := hexutil.MustDecode(ctx.String(utils.SyncTargetFlag.Name))
+		if len(hex) != common.HashLength {
+			utils.Fatalf("invalid sync target length: have %d, want %d", len(hex), common.HashLength)
+		}
+		utils.RegisterFullSyncTester(stack, eth, common.BytesToHash(hex))
 	}
-
 	// Start the dev mode if requested, or launch the engine API for
 	// interacting with external consensus client.
 	if ctx.IsSet(utils.DeveloperFlag.Name) {