vendor: move vendored sources in-tree

This should make it easier to see changes instead of just a blob

vendor/github.com/redis/go-redis/v9/internal/util.go

@@ -0,0 +1,113 @@
+package internal
+
+import (
+	"context"
+	"net"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/redis/go-redis/v9/internal/util"
+)
+
+func Sleep(ctx context.Context, dur time.Duration) error {
+	t := time.NewTimer(dur)
+	defer t.Stop()
+
+	select {
+	case <-t.C:
+		return nil
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+}
+
+func ToLower(s string) string {
+	if isLower(s) {
+		return s
+	}
+
+	b := make([]byte, len(s))
+	for i := range b {
+		c := s[i]
+		if c >= 'A' && c <= 'Z' {
+			c += 'a' - 'A'
+		}
+		b[i] = c
+	}
+	return util.BytesToString(b)
+}
+
+func isLower(s string) bool {
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		if c >= 'A' && c <= 'Z' {
+			return false
+		}
+	}
+	return true
+}
+
+func ReplaceSpaces(s string) string {
+	return strings.ReplaceAll(s, " ", "-")
+}
+
+func GetAddr(addr string) string {
+	ind := strings.LastIndexByte(addr, ':')
+	if ind == -1 {
+		return ""
+	}
+
+	if strings.IndexByte(addr, '.') != -1 {
+		return addr
+	}
+
+	if addr[0] == '[' {
+		return addr
+	}
+	return net.JoinHostPort(addr[:ind], addr[ind+1:])
+}
+
+func ToInteger(val interface{}) int {
+	switch v := val.(type) {
+	case int:
+		return v
+	case int64:
+		return int(v)
+	case string:
+		i, _ := strconv.Atoi(v)
+		return i
+	default:
+		return 0
+	}
+}
+
+func ToFloat(val interface{}) float64 {
+	switch v := val.(type) {
+	case float64:
+		return v
+	case string:
+		f, _ := strconv.ParseFloat(v, 64)
+		return f
+	default:
+		return 0.0
+	}
+}
+
+func ToString(val interface{}) string {
+	if str, ok := val.(string); ok {
+		return str
+	}
+	return ""
+}
+
+func ToStringSlice(val interface{}) []string {
+	if arr, ok := val.([]interface{}); ok {
+		result := make([]string, len(arr))
+		for i, v := range arr {
+			result[i] = ToString(v)
+		}
+		return result
+	}
+	return nil
+}