change broadcaster-type to type

It is nested under "cluster" in the config, and it controls cluster membership
as well as broadcasting, so I think type is more appropriate. Also, brevity.

cmd/server.go

@@ -83,7 +83,7 @@ on the configured port.`,
 	flags.DurationVarP((*time.Duration)(&Server.Config.AntiEntropy.Interval), "anti-entropy.interval", "", time.Minute*10, "Interval at which to run anti-entropy routine.")
 	flags.StringVarP(&Server.CPUProfile, "profile.cpu", "", "", "Where to store CPU profile.")
 	flags.DurationVarP(&Server.CPUTime, "profile.cpu-time", "", 30*time.Second, "CPU profile duration.")
-	flags.StringVarP(&Server.Config.Cluster.BroadcasterType, "cluster.broadcaster-type", "", "static", "Type of Broadcaster to use for inter-host messaging. Choose from [static, http, gossip]")
+	flags.StringVarP(&Server.Config.Cluster.Type, "cluster.type", "", "static", "Determine how the cluster handles membership and state sharing. Choose from [static, http, gossip]")
 	flags.StringVarP(&Server.Config.Cluster.Gossip.Seed, "cluster.gossip.seed", "", "", "Host with which to seed the gossip membership.")
 	flags.IntVarP(&Server.Config.Cluster.Gossip.Port, "cluster.gossip.port", "", 0, "Port to which pilosa should bind for gossip.")
 

config.go

@@ -4,10 +4,10 @@ import "time"
 
 const (
 	// DefaultHost is the default hostname and port to use.
-	DefaultHost            = "localhost"
-	DefaultPort            = "10101"
-	DefaultBroadcasterType = "static"
-	DefaultGossipPort      = "14000"
+	DefaultHost        = "localhost"
+	DefaultPort        = "10101"
+	DefaultClusterType = "static"
+	DefaultGossipPort  = "14000"
 )
 
 // Config represents the configuration for the command.
@@ -17,7 +17,7 @@ type Config struct {
 
 	Cluster struct {
 		ReplicaN        int          `toml:"replicas"`
-		BroadcasterType string       `toml:"broadcaster-type"`
+		Type            string       `toml:"type"`
 		Nodes           []string     `toml:"hosts"`
 		PollingInterval Duration     `toml:"polling-interval"`
 		Gossip          ConfigGossip `toml:"gossip"`
@@ -45,7 +45,7 @@ func NewConfig() *Config {
 		Host: DefaultHost + ":" + DefaultPort,
 	}
 	c.Cluster.ReplicaN = DefaultReplicaN
-	c.Cluster.BroadcasterType = DefaultBroadcasterType
+	c.Cluster.Type = DefaultClusterType
 	c.Cluster.PollingInterval = Duration(DefaultPollingInterval)
 	c.Cluster.Nodes = []string{}
 	c.AntiEntropy.Interval = Duration(DefaultAntiEntropyInterval)

server/server.go

@@ -114,14 +114,13 @@ func (m *Command) SetupServer() error {
 	m.Server.Index.Path = m.Config.DataDir
 	m.Server.Index.Stats = pilosa.NewExpvarStatsClient()
 
-	// Build cluster from config file.
 	var err error
 	m.Server.Host, err = normalizeHost(m.Config.Host)
 	if err != nil {
 		return err
 	}
 
-	switch m.Config.Cluster.BroadcasterType { // TODO change name to something that encompasses broadcasting, receiving broadcasts, and tracking cluster membership
+	switch m.Config.Cluster.Type { // TODO change name to something that encompasses broadcasting, receiving broadcasts, and tracking cluster membership
 	case "http":
 		port := strconv.Itoa(m.Config.Cluster.Gossip.Port)
 		m.Server.Broadcaster = httpbroadcast.NewHTTPBroadcaster(m.Server, port)
@@ -157,7 +156,7 @@ func (m *Command) SetupServer() error {
 		m.Server.Cluster.NodeSet = pilosa.NewStaticNodeSet()
 		m.Server.BroadcastReceiver = pilosa.NopBroadcastReceiver
 	default:
-		return fmt.Errorf("'%v' is not a supported value for broadcaster type.", m.Config.Cluster.BroadcasterType)
+		return fmt.Errorf("'%v' is not a supported value for broadcaster type.", m.Config.Cluster.Type)
 	}
 
 	// Set configuration options.