Rework Options initialisation.

cluster.go

@@ -41,10 +41,7 @@ type ClusterClient struct {
 // NewClusterClient returns a Redis Cluster client as described in
 // http://redis.io/topics/cluster-spec.
 func NewClusterClient(opt *ClusterOptions) *ClusterClient {
-	if opt.RouteByLatency {
-		opt.ReadOnly = true
-	}
-
+	opt.init()
 	client := &ClusterClient{
 		opt:   opt,
 		nodes: make(map[string]*clusterNode),
@@ -246,7 +243,7 @@ func (c *ClusterClient) Process(cmd Cmder) {
 	var ask bool
 	slot, node := c.cmdSlotAndNode(cmd)
 
-	for attempt := 0; attempt <= c.opt.getMaxRedirects(); attempt++ {
+	for attempt := 0; attempt <= c.opt.MaxRedirects; attempt++ {
 		if attempt > 0 {
 			cmd.reset()
 		}
@@ -419,7 +416,7 @@ func (c *ClusterClient) pipelineExec(cmds []Cmder) error {
 		cmdsMap[node] = append(cmdsMap[node], cmd)
 	}
 
-	for attempt := 0; attempt <= c.opt.getMaxRedirects(); attempt++ {
+	for attempt := 0; attempt <= c.opt.MaxRedirects; attempt++ {
 		failedCmds := make(map[*clusterNode][]Cmder)
 
 		for node, cmds := range cmdsMap {
@@ -516,14 +513,16 @@ type ClusterOptions struct {
 	IdleCheckFrequency time.Duration
 }
 
-func (opt *ClusterOptions) getMaxRedirects() int {
+func (opt *ClusterOptions) init() {
 	if opt.MaxRedirects == -1 {
-		return 0
+		opt.MaxRedirects = 0
+	} else if opt.MaxRedirects == 0 {
+		opt.MaxRedirects = 16
 	}
-	if opt.MaxRedirects == 0 {
-		return 16
+
+	if opt.RouteByLatency {
+		opt.ReadOnly = true
 	}
-	return opt.MaxRedirects
 }
 
 func (opt *ClusterOptions) clientOptions() *Options {

options.go

@@ -58,61 +58,36 @@ type Options struct {
 	ReadOnly bool
 }
 
-func (opt *Options) getNetwork() string {
+func (opt *Options) init() {
 	if opt.Network == "" {
-		return "tcp"
+		opt.Network = "tcp"
 	}
-	return opt.Network
-}
-
-func (opt *Options) getDialer() func() (net.Conn, error) {
-	if opt.Dialer != nil {
-		return opt.Dialer
+	if opt.Dialer == nil {
+		opt.Dialer = func() (net.Conn, error) {
+			return net.DialTimeout(opt.Network, opt.Addr, opt.DialTimeout)
 		}
-	return func() (net.Conn, error) {
-		return net.DialTimeout(opt.getNetwork(), opt.Addr, opt.getDialTimeout())
 	}
-}
-
-func (opt *Options) getPoolSize() int {
 	if opt.PoolSize == 0 {
-		return 10
+		opt.PoolSize = 10
 	}
-	return opt.PoolSize
-}
-
-func (opt *Options) getDialTimeout() time.Duration {
 	if opt.DialTimeout == 0 {
-		return 5 * time.Second
+		opt.DialTimeout = 5 * time.Second
 	}
-	return opt.DialTimeout
-}
-
-func (opt *Options) getPoolTimeout() time.Duration {
 	if opt.PoolTimeout == 0 {
-		return 1 * time.Second
+		opt.PoolTimeout = 1 * time.Second
 	}
-	return opt.PoolTimeout
-}
-
-func (opt *Options) getIdleTimeout() time.Duration {
-	return opt.IdleTimeout
-}
-
-func (opt *Options) getIdleCheckFrequency() time.Duration {
 	if opt.IdleCheckFrequency == 0 {
-		return time.Minute
+		opt.IdleCheckFrequency = time.Minute
 	}
-	return opt.IdleCheckFrequency
 }
 
 func newConnPool(opt *Options) *pool.ConnPool {
 	return pool.NewConnPool(
-		opt.getDialer(),
-		opt.getPoolSize(),
-		opt.getPoolTimeout(),
-		opt.getIdleTimeout(),
-		opt.getIdleCheckFrequency(),
+		opt.Dialer,
+		opt.PoolSize,
+		opt.PoolTimeout,
+		opt.IdleTimeout,
+		opt.IdleCheckFrequency,
 	)
 }
 

redis.go

@@ -155,6 +155,7 @@ func newClient(opt *Options, pool pool.Pooler) *Client {
 
 // NewClient returns a client to the Redis Server specified by Options.
 func NewClient(opt *Options) *Client {
+	opt.init()
 	return newClient(opt, newConnPool(opt))
 }
 

ring.go

@@ -39,6 +39,8 @@ type RingOptions struct {
 	IdleCheckFrequency time.Duration
 }
 
+func (opt *RingOptions) init() {}
+
 func (opt *RingOptions) clientOptions() *Options {
 	return &Options{
 		DB:       opt.DB,
@@ -127,6 +129,7 @@ type Ring struct {
 
 func NewRing(opt *RingOptions) *Ring {
 	const nreplicas = 100
+	opt.init()
 	ring := &Ring{
 		opt:       opt,
 		nreplicas: nreplicas,

sentinel.go

@@ -64,12 +64,15 @@ func (opt *FailoverOptions) options() *Options {
 // goroutines.
 func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
 	opt := failoverOpt.options()
+	opt.init()
+
 	failover := &sentinelFailover{
 		masterName:    failoverOpt.MasterName,
 		sentinelAddrs: failoverOpt.SentinelAddrs,
 
 		opt: opt,
 	}
+
 	client := Client{
 		baseClient: baseClient{
 			opt:      opt,
@@ -81,6 +84,7 @@ func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
 		},
 	}
 	client.cmdable.process = client.Process
+
 	return &client
 }
 
@@ -92,6 +96,7 @@ type sentinelClient struct {
 }
 
 func newSentinel(opt *Options) *sentinelClient {
+	opt.init()
 	client := sentinelClient{
 		baseClient: baseClient{
 			opt:      opt,