VOL-4925 - Build and release components.
VERSION
-------
o Bump version file for release.
Misc/
-----
o Update copyright notice to force a release build.
Change-Id: I49f5c11b24f5b0e7fd9ab1eee1a98fef271a2a52
diff --git a/vendor/github.com/go-redis/redis/v8/options.go b/vendor/github.com/go-redis/redis/v8/options.go
new file mode 100644
index 0000000..f2c16c5
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/options.go
@@ -0,0 +1,317 @@
+package redis
+
+import (
+ "context"
+ "crypto/tls"
+ "errors"
+ "fmt"
+ "net"
+ "net/url"
+ "runtime"
+ "strconv"
+ "strings"
+ "time"
+
+ "github.com/go-redis/redis/v8/internal"
+ "github.com/go-redis/redis/v8/internal/pool"
+ "go.opentelemetry.io/otel/api/trace"
+ "go.opentelemetry.io/otel/label"
+)
+
+// Limiter is the interface of a rate limiter or a circuit breaker.
+type Limiter interface {
+ // Allow returns nil if operation is allowed or an error otherwise.
+ // If operation is allowed client must ReportResult of the operation
+ // whether it is a success or a failure.
+ Allow() error
+ // ReportResult reports the result of the previously allowed operation.
+ // nil indicates a success, non-nil error usually indicates a failure.
+ ReportResult(result error)
+}
+
+// Options keeps the settings to setup redis connection.
+type Options struct {
+ // The network type, either tcp or unix.
+ // Default is tcp.
+ Network string
+ // host:port address.
+ Addr string
+
+ // Dialer creates new network connection and has priority over
+ // Network and Addr options.
+ Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
+
+ // Hook that is called when new connection is established.
+ OnConnect func(ctx context.Context, cn *Conn) error
+
+ // Use the specified Username to authenticate the current connection
+ // with one of the connections defined in the ACL list when connecting
+ // to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
+ Username string
+ // Optional password. Must match the password specified in the
+ // requirepass server configuration option (if connecting to a Redis 5.0 instance, or lower),
+ // or the User Password when connecting to a Redis 6.0 instance, or greater,
+ // that is using the Redis ACL system.
+ Password string
+
+ // Database to be selected after connecting to the server.
+ DB int
+
+ // Maximum number of retries before giving up.
+ // Default is 3 retries.
+ MaxRetries int
+ // Minimum backoff between each retry.
+ // Default is 8 milliseconds; -1 disables backoff.
+ MinRetryBackoff time.Duration
+ // Maximum backoff between each retry.
+ // Default is 512 milliseconds; -1 disables backoff.
+ MaxRetryBackoff time.Duration
+
+ // Dial timeout for establishing new connections.
+ // Default is 5 seconds.
+ DialTimeout time.Duration
+ // Timeout for socket reads. If reached, commands will fail
+ // with a timeout instead of blocking. Use value -1 for no timeout and 0 for default.
+ // Default is 3 seconds.
+ ReadTimeout time.Duration
+ // Timeout for socket writes. If reached, commands will fail
+ // with a timeout instead of blocking.
+ // Default is ReadTimeout.
+ WriteTimeout time.Duration
+
+ // Maximum number of socket connections.
+ // Default is 10 connections per every CPU as reported by runtime.NumCPU.
+ PoolSize int
+ // Minimum number of idle connections which is useful when establishing
+ // new connection is slow.
+ MinIdleConns int
+ // Connection age at which client retires (closes) the connection.
+ // Default is to not close aged connections.
+ MaxConnAge time.Duration
+ // Amount of time client waits for connection if all connections
+ // are busy before returning an error.
+ // Default is ReadTimeout + 1 second.
+ PoolTimeout time.Duration
+ // Amount of time after which client closes idle connections.
+ // Should be less than server's timeout.
+ // Default is 5 minutes. -1 disables idle timeout check.
+ IdleTimeout time.Duration
+ // Frequency of idle checks made by idle connections reaper.
+ // Default is 1 minute. -1 disables idle connections reaper,
+ // but idle connections are still discarded by the client
+ // if IdleTimeout is set.
+ IdleCheckFrequency time.Duration
+
+ // Enables read only queries on slave nodes.
+ readOnly bool
+
+ // TLS Config to use. When set TLS will be negotiated.
+ TLSConfig *tls.Config
+
+ // Limiter interface used to implemented circuit breaker or rate limiter.
+ Limiter Limiter
+}
+
+func (opt *Options) init() {
+ if opt.Addr == "" {
+ opt.Addr = "localhost:6379"
+ }
+ if opt.Network == "" {
+ if strings.HasPrefix(opt.Addr, "/") {
+ opt.Network = "unix"
+ } else {
+ opt.Network = "tcp"
+ }
+ }
+ if opt.DialTimeout == 0 {
+ opt.DialTimeout = 5 * time.Second
+ }
+ if opt.Dialer == nil {
+ opt.Dialer = func(ctx context.Context, network, addr string) (net.Conn, error) {
+ netDialer := &net.Dialer{
+ Timeout: opt.DialTimeout,
+ KeepAlive: 5 * time.Minute,
+ }
+ if opt.TLSConfig == nil {
+ return netDialer.DialContext(ctx, network, addr)
+ }
+ return tls.DialWithDialer(netDialer, network, addr, opt.TLSConfig)
+ }
+ }
+ if opt.PoolSize == 0 {
+ opt.PoolSize = 10 * runtime.NumCPU()
+ }
+ switch opt.ReadTimeout {
+ case -1:
+ opt.ReadTimeout = 0
+ case 0:
+ opt.ReadTimeout = 3 * time.Second
+ }
+ switch opt.WriteTimeout {
+ case -1:
+ opt.WriteTimeout = 0
+ case 0:
+ opt.WriteTimeout = opt.ReadTimeout
+ }
+ if opt.PoolTimeout == 0 {
+ opt.PoolTimeout = opt.ReadTimeout + time.Second
+ }
+ if opt.IdleTimeout == 0 {
+ opt.IdleTimeout = 5 * time.Minute
+ }
+ if opt.IdleCheckFrequency == 0 {
+ opt.IdleCheckFrequency = time.Minute
+ }
+
+ if opt.MaxRetries == -1 {
+ opt.MaxRetries = 0
+ } else if opt.MaxRetries == 0 {
+ opt.MaxRetries = 3
+ }
+ switch opt.MinRetryBackoff {
+ case -1:
+ opt.MinRetryBackoff = 0
+ case 0:
+ opt.MinRetryBackoff = 8 * time.Millisecond
+ }
+ switch opt.MaxRetryBackoff {
+ case -1:
+ opt.MaxRetryBackoff = 0
+ case 0:
+ opt.MaxRetryBackoff = 512 * time.Millisecond
+ }
+}
+
+func (opt *Options) clone() *Options {
+ clone := *opt
+ return &clone
+}
+
+// ParseURL parses an URL into Options that can be used to connect to Redis.
+// Scheme is required.
+// There are two connection types: by tcp socket and by unix socket.
+// Tcp connection:
+// redis://<user>:<password>@<host>:<port>/<db_number>
+// Unix connection:
+// unix://<user>:<password>@</path/to/redis.sock>?db=<db_number>
+func ParseURL(redisURL string) (*Options, error) {
+ u, err := url.Parse(redisURL)
+ if err != nil {
+ return nil, err
+ }
+
+ switch u.Scheme {
+ case "redis", "rediss":
+ return setupTCPConn(u)
+ case "unix":
+ return setupUnixConn(u)
+ default:
+ return nil, fmt.Errorf("redis: invalid URL scheme: %s", u.Scheme)
+ }
+}
+
+func setupTCPConn(u *url.URL) (*Options, error) {
+ o := &Options{Network: "tcp"}
+
+ o.Username, o.Password = getUserPassword(u)
+
+ if len(u.Query()) > 0 {
+ return nil, errors.New("redis: no options supported")
+ }
+
+ h, p, err := net.SplitHostPort(u.Host)
+ if err != nil {
+ h = u.Host
+ }
+ if h == "" {
+ h = "localhost"
+ }
+ if p == "" {
+ p = "6379"
+ }
+ o.Addr = net.JoinHostPort(h, p)
+
+ f := strings.FieldsFunc(u.Path, func(r rune) bool {
+ return r == '/'
+ })
+ switch len(f) {
+ case 0:
+ o.DB = 0
+ case 1:
+ if o.DB, err = strconv.Atoi(f[0]); err != nil {
+ return nil, fmt.Errorf("redis: invalid database number: %q", f[0])
+ }
+ default:
+ return nil, fmt.Errorf("redis: invalid URL path: %s", u.Path)
+ }
+
+ if u.Scheme == "rediss" {
+ o.TLSConfig = &tls.Config{ServerName: h}
+ }
+
+ return o, nil
+}
+
+func setupUnixConn(u *url.URL) (*Options, error) {
+ o := &Options{
+ Network: "unix",
+ }
+
+ if strings.TrimSpace(u.Path) == "" { // path is required with unix connection
+ return nil, errors.New("redis: empty unix socket path")
+ }
+ o.Addr = u.Path
+
+ o.Username, o.Password = getUserPassword(u)
+
+ dbStr := u.Query().Get("db")
+ if dbStr == "" {
+ return o, nil // if database is not set, connect to 0 db.
+ }
+
+ db, err := strconv.Atoi(dbStr)
+ if err != nil {
+ return nil, fmt.Errorf("redis: invalid database number: %s", err)
+ }
+ o.DB = db
+
+ return o, nil
+}
+
+func getUserPassword(u *url.URL) (string, string) {
+ var user, password string
+ if u.User != nil {
+ user = u.User.Username()
+ if p, ok := u.User.Password(); ok {
+ password = p
+ }
+ }
+ return user, password
+}
+
+func newConnPool(opt *Options) *pool.ConnPool {
+ return pool.NewConnPool(&pool.Options{
+ Dialer: func(ctx context.Context) (net.Conn, error) {
+ var conn net.Conn
+ err := internal.WithSpan(ctx, "redis.dial", func(ctx context.Context, span trace.Span) error {
+ span.SetAttributes(
+ label.String("db.connection_string", opt.Addr),
+ )
+
+ var err error
+ conn, err = opt.Dialer(ctx, opt.Network, opt.Addr)
+ if err != nil {
+ _ = internal.RecordError(ctx, err)
+ }
+ return err
+ })
+ return conn, err
+ },
+ PoolSize: opt.PoolSize,
+ MinIdleConns: opt.MinIdleConns,
+ MaxConnAge: opt.MaxConnAge,
+ PoolTimeout: opt.PoolTimeout,
+ IdleTimeout: opt.IdleTimeout,
+ IdleCheckFrequency: opt.IdleCheckFrequency,
+ })
+}