sentinel.go
func getRole(c redis.Conn) (string, error) {
	res, err := c.Do("ROLE")
	if err != nil {
		return "", err
	}
	rres, ok := res.([]interface{})
	if ok {
		return redis.String(rres[0], nil)
	}
	return "", errors.New("redigo: can not transform ROLE reply to string")
}
func getRole(c redis.Conn) (string, error) {
	res, err := c.Do("ROLE")
	if err != nil {
		return "", err
	}
	rres, ok := res.([]interface{})
	if ok {
		return redis.String(rres[0], nil)
	}
	return "", errors.New("redigo: can not transform ROLE reply to string")
}
func getRole ( c redis . Conn ) ( string , error ) { res , err := c . Do ( " " ) if err != nil { return " " , err } rres , ok := res . ( [ ] interface { } ) if ok { return redis . String ( rres [ 0 ] , nil ) } return " " , errors . New ( " " ) }
// getRole is a convenience function supplied to query an instance (master or
// slave) for its role. It attempts to use the ROLE command introduced in
// redis 2.8.12.
getRole is a convenience function supplied to query an instance ( master or slave ) for its role . It attempts to use the ROLE command introduced in redis 2 . 8 . 12 .