cmd: encapsulate les relative cli options

cmd/geth/usage.go

@@ -82,6 +82,13 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.GCModeFlag,
 			utils.EthStatsURLFlag,
 			utils.IdentityFlag,
+			utils.LightKDFFlag,
+			utils.WhitelistFlag,
+		},
+	},
+	{
+		Name: "LES",
+		Flags: []cli.Flag{
 			utils.LightServFlag,
 			utils.LightBandwidthInFlag,
 			utils.LightBandwidthOutFlag,
@@ -89,8 +96,6 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.UltraLightServersFlag,
 			utils.UltraLightFractionFlag,
 			utils.UltraLightOnlyAnnounceFlag,
-			utils.LightKDFFlag,
-			utils.WhitelistFlag,
 		},
 	},
 	{

cmd/utils/flags.go

@@ -174,20 +174,6 @@ var (
 		Name:  "exitwhensynced",
 		Usage: "Exits after block synchronisation completes",
 	}
-	UltraLightServersFlag = cli.StringFlag{
-		Name:  "ulc.servers",
-		Usage: "List of trusted ultra-light servers",
-		Value: strings.Join(eth.DefaultConfig.UltraLightServers, ","),
-	}
-	UltraLightFractionFlag = cli.IntFlag{
-		Name:  "ulc.fraction",
-		Usage: "Minimum % of trusted ultra-light servers required to announce a new head",
-		Value: eth.DefaultConfig.UltraLightFraction,
-	}
-	UltraLightOnlyAnnounceFlag = cli.BoolFlag{
-		Name:  "ulc.onlyannounce",
-		Usage: "Ultra light server sends announcements only",
-	}
 	IterativeOutputFlag = cli.BoolFlag{
 		Name:  "iterative",
 		Usage: "Print streaming JSON iteratively, delimited by newlines",
@@ -215,6 +201,15 @@ var (
 		Usage: `Blockchain garbage collection mode ("full", "archive")`,
 		Value: "full",
 	}
+	LightKDFFlag = cli.BoolFlag{
+		Name:  "lightkdf",
+		Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
+	}
+	WhitelistFlag = cli.StringFlag{
+		Name:  "whitelist",
+		Usage: "Comma separated block number-to-hash mappings to enforce (<number>=<hash>)",
+	}
+	// LES settings
 	LightServFlag = cli.IntFlag{
 		Name:  "lightserv",
 		Usage: "Maximum percentage of time allowed for serving LES requests (multi-threaded processing allows values over 100)",
@@ -235,13 +230,19 @@ var (
 		Usage: "Maximum number of LES client peers",
 		Value: eth.DefaultConfig.LightPeers,
 	}
-	LightKDFFlag = cli.BoolFlag{
+	UltraLightServersFlag = cli.StringFlag{
-		Name:  "lightkdf",
+		Name:  "ulc.servers",
-		Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
+		Usage: "List of trusted ultra-light servers",
+		Value: strings.Join(eth.DefaultConfig.UltraLightServers, ","),
 	}
-	WhitelistFlag = cli.StringFlag{
+	UltraLightFractionFlag = cli.IntFlag{
-		Name:  "whitelist",
+		Name:  "ulc.fraction",
-		Usage: "Comma separated block number-to-hash mappings to enforce (<number>=<hash>)",
+		Usage: "Minimum % of trusted ultra-light servers required to announce a new head",
+		Value: eth.DefaultConfig.UltraLightFraction,
+	}
+	UltraLightOnlyAnnounceFlag = cli.BoolFlag{
+		Name:  "ulc.onlyannounce",
+		Usage: "Ultra light server sends announcements only",
 	}
 	// Dashboard settings
 	DashboardEnabledFlag = cli.BoolFlag{
@@ -949,8 +950,20 @@ func setIPC(ctx *cli.Context, cfg *node.Config) {
 	}
 }
 
-// setUltraLight configures the ultra light client settings from the command line flags.
+// setLes configures the les server and ultra light client settings from the command line flags.
-func setUltraLight(ctx *cli.Context, cfg *eth.Config) {
+func setLes(ctx *cli.Context, cfg *eth.Config) {
+	if ctx.GlobalIsSet(LightServFlag.Name) {
+		cfg.LightServ = ctx.GlobalInt(LightServFlag.Name)
+	}
+	if ctx.GlobalIsSet(LightBandwidthInFlag.Name) {
+		cfg.LightBandwidthIn = ctx.GlobalInt(LightBandwidthInFlag.Name)
+	}
+	if ctx.GlobalIsSet(LightBandwidthOutFlag.Name) {
+		cfg.LightBandwidthOut = ctx.GlobalInt(LightBandwidthOutFlag.Name)
+	}
+	if ctx.GlobalIsSet(LightPeersFlag.Name) {
+		cfg.LightPeers = ctx.GlobalInt(LightPeersFlag.Name)
+	}
 	if ctx.GlobalIsSet(UltraLightServersFlag.Name) {
 		cfg.UltraLightServers = strings.Split(ctx.GlobalString(UltraLightServersFlag.Name), ",")
 	}
@@ -1379,19 +1392,11 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	setEthash(ctx, cfg)
 	setMiner(ctx, &cfg.Miner)
 	setWhitelist(ctx, cfg)
-	setUltraLight(ctx, cfg)
+	setLes(ctx, cfg)
 
 	if ctx.GlobalIsSet(SyncModeFlag.Name) {
 		cfg.SyncMode = *GlobalTextMarshaler(ctx, SyncModeFlag.Name).(*downloader.SyncMode)
 	}
-	if ctx.GlobalIsSet(LightServFlag.Name) {
-		cfg.LightServ = ctx.GlobalInt(LightServFlag.Name)
-	}
-	cfg.LightBandwidthIn = ctx.GlobalInt(LightBandwidthInFlag.Name)
-	cfg.LightBandwidthOut = ctx.GlobalInt(LightBandwidthOutFlag.Name)
-	if ctx.GlobalIsSet(LightPeersFlag.Name) {
-		cfg.LightPeers = ctx.GlobalInt(LightPeersFlag.Name)
-	}
 	if ctx.GlobalIsSet(NetworkIdFlag.Name) {
 		cfg.NetworkId = ctx.GlobalUint64(NetworkIdFlag.Name)
 	}