Vendor Update (#16121)

* update github.com/PuerkitoBio/goquery

* update github.com/alecthomas/chroma

* update github.com/blevesearch/bleve/v2

* update github.com/caddyserver/certmagic

* update github.com/go-enry/go-enry/v2

* update github.com/go-git/go-billy/v5

* update github.com/go-git/go-git/v5

* update github.com/go-redis/redis/v8

* update github.com/go-testfixtures/testfixtures/v3

* update github.com/jaytaylor/html2text

* update github.com/json-iterator/go

* update github.com/klauspost/compress

* update github.com/markbates/goth

* update github.com/mattn/go-isatty

* update github.com/mholt/archiver/v3

* update github.com/microcosm-cc/bluemonday

* update github.com/minio/minio-go/v7

* update github.com/prometheus/client_golang

* update github.com/unrolled/render

* update github.com/xanzy/go-gitlab

* update github.com/yuin/goldmark

* update github.com/yuin/goldmark-highlighting

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

vendor/github.com/go-redis/redis/v8/CHANGELOG.md

@@ -3,6 +3,24 @@
 > :heart:
 > [**Uptrace.dev** - All-in-one tool to optimize performance and monitor errors & logs](https://uptrace.dev)
 
+## v8.10
+
+- Removed extra OpenTelemetry spans from go-redis core. Now go-redis instrumentation only adds a
+  single span with a Redis command (instead of 4 spans). There are multiple reasons behind this
+  decision:
+
+  - Traces become smaller and less noisy.
+  - It may be costly to process those 3 extra spans for each query.
+  - go-redis no longer depends on OpenTelemetry.
+
+  Eventually we hope to replace the information that we no longer collect with OpenTelemetry
+  Metrics.
+
+## v8.9
+
+- Changed `PubSub.Channel` to only rely on `Ping` result. You can now use `WithChannelSize`,
+  `WithChannelHealthCheckInterval`, and `WithChannelSendTimeout` to override default settings.
+
 ## v8.8
 
 - To make updating easier, extra modules now have the same version as go-redis does. That means that

vendor/github.com/go-redis/redis/v8/README.md

@@ -138,7 +138,7 @@ res, err := rdb.Do(ctx, "set", "key", "value").Result()
 
 go-redis will start a redis-server and run the test cases.
 
-The paths of redis-server bin file and redis config file are definded in `main_test.go`:
+The paths of redis-server bin file and redis config file are defined in `main_test.go`:
 
 ```
 var (
@@ -163,7 +163,5 @@ go test
 
 ## See also
 
-- [Fast and flexible HTTP router](https://github.com/vmihailenco/treemux)
-- [Golang PostgreSQL ORM](https://github.com/go-pg/pg)
-- [Golang msgpack](https://github.com/vmihailenco/msgpack)
-- [Golang message task queue](https://github.com/vmihailenco/taskq)
+- [Fast and flexible ORM](https://github.com/uptrace/bun)
+- [msgpack for Go](https://github.com/vmihailenco/msgpack)

vendor/github.com/go-redis/redis/v8/cluster_commands.go

@@ -2,6 +2,7 @@ package redis
 
 import (
 	"context"
+	"sync"
 	"sync/atomic"
 )
 
@@ -23,3 +24,76 @@ func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
 	cmd.val = size
 	return cmd
 }
+
+func (c *ClusterClient) ScriptLoad(ctx context.Context, script string) *StringCmd {
+	cmd := NewStringCmd(ctx, "script", "load", script)
+	mu := &sync.Mutex{}
+	err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
+		val, err := shard.ScriptLoad(ctx, script).Result()
+		if err != nil {
+			return err
+		}
+
+		mu.Lock()
+		if cmd.Val() == "" {
+			cmd.val = val
+		}
+		mu.Unlock()
+
+		return nil
+	})
+	if err != nil {
+		cmd.SetErr(err)
+	}
+
+	return cmd
+}
+
+func (c *ClusterClient) ScriptFlush(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "script", "flush")
+	_ = c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
+		shard.ScriptFlush(ctx)
+
+		return nil
+	})
+
+	return cmd
+}
+
+func (c *ClusterClient) ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd {
+	args := make([]interface{}, 2+len(hashes))
+	args[0] = "script"
+	args[1] = "exists"
+	for i, hash := range hashes {
+		args[2+i] = hash
+	}
+	cmd := NewBoolSliceCmd(ctx, args...)
+
+	result := make([]bool, len(hashes))
+	for i := range result {
+		result[i] = true
+	}
+
+	mu := &sync.Mutex{}
+	err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
+		val, err := shard.ScriptExists(ctx, hashes...).Result()
+		if err != nil {
+			return err
+		}
+
+		mu.Lock()
+		for i, v := range val {
+			result[i] = result[i] && v
+		}
+		mu.Unlock()
+
+		return nil
+	})
+	if err != nil {
+		cmd.SetErr(err)
+	}
+
+	cmd.val = result
+
+	return cmd
+}

vendor/github.com/go-redis/redis/v8/command.go

@@ -1512,7 +1512,7 @@ type XInfoConsumer struct {
 	Idle    int64
 }
 
-var _ Cmder = (*XInfoGroupsCmd)(nil)
+var _ Cmder = (*XInfoConsumersCmd)(nil)
 
 func NewXInfoConsumersCmd(ctx context.Context, stream string, group string) *XInfoConsumersCmd {
 	return &XInfoConsumersCmd{
@@ -1769,8 +1769,14 @@ func xStreamInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
 			info.LastGeneratedID, err = rd.ReadString()
 		case "first-entry":
 			info.FirstEntry, err = readXMessage(rd)
+			if err == Nil {
+				err = nil
+			}
 		case "last-entry":
 			info.LastEntry, err = readXMessage(rd)
+			if err == Nil {
+				err = nil
+			}
 		default:
 			return nil, fmt.Errorf("redis: unexpected content %s "+
 				"in XINFO STREAM reply", key)
@@ -1784,6 +1790,302 @@ func xStreamInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
 
 //------------------------------------------------------------------------------
 
+type XInfoStreamFullCmd struct {
+	baseCmd
+	val *XInfoStreamFull
+}
+
+type XInfoStreamFull struct {
+	Length          int64
+	RadixTreeKeys   int64
+	RadixTreeNodes  int64
+	LastGeneratedID string
+	Entries         []XMessage
+	Groups          []XInfoStreamGroup
+}
+
+type XInfoStreamGroup struct {
+	Name            string
+	LastDeliveredID string
+	PelCount        int64
+	Pending         []XInfoStreamGroupPending
+	Consumers       []XInfoStreamConsumer
+}
+
+type XInfoStreamGroupPending struct {
+	ID            string
+	Consumer      string
+	DeliveryTime  time.Time
+	DeliveryCount int64
+}
+
+type XInfoStreamConsumer struct {
+	Name     string
+	SeenTime time.Time
+	PelCount int64
+	Pending  []XInfoStreamConsumerPending
+}
+
+type XInfoStreamConsumerPending struct {
+	ID            string
+	DeliveryTime  time.Time
+	DeliveryCount int64
+}
+
+var _ Cmder = (*XInfoStreamFullCmd)(nil)
+
+func NewXInfoStreamFullCmd(ctx context.Context, args ...interface{}) *XInfoStreamFullCmd {
+	return &XInfoStreamFullCmd{
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
+	}
+}
+
+func (cmd *XInfoStreamFullCmd) Val() *XInfoStreamFull {
+	return cmd.val
+}
+
+func (cmd *XInfoStreamFullCmd) Result() (*XInfoStreamFull, error) {
+	return cmd.val, cmd.err
+}
+
+func (cmd *XInfoStreamFullCmd) String() string {
+	return cmdString(cmd, cmd.val)
+}
+
+func (cmd *XInfoStreamFullCmd) readReply(rd *proto.Reader) error {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return err
+	}
+	if n != 12 {
+		return fmt.Errorf("redis: got %d elements in XINFO STREAM FULL reply,"+
+			"wanted 12", n)
+	}
+
+	cmd.val = &XInfoStreamFull{}
+
+	for i := 0; i < 6; i++ {
+		key, err := rd.ReadString()
+		if err != nil {
+			return err
+		}
+
+		switch key {
+		case "length":
+			cmd.val.Length, err = rd.ReadIntReply()
+		case "radix-tree-keys":
+			cmd.val.RadixTreeKeys, err = rd.ReadIntReply()
+		case "radix-tree-nodes":
+			cmd.val.RadixTreeNodes, err = rd.ReadIntReply()
+		case "last-generated-id":
+			cmd.val.LastGeneratedID, err = rd.ReadString()
+		case "entries":
+			cmd.val.Entries, err = readXMessageSlice(rd)
+		case "groups":
+			cmd.val.Groups, err = readStreamGroups(rd)
+		default:
+			return fmt.Errorf("redis: unexpected content %s "+
+				"in XINFO STREAM reply", key)
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func readStreamGroups(rd *proto.Reader) ([]XInfoStreamGroup, error) {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return nil, err
+	}
+	groups := make([]XInfoStreamGroup, 0, n)
+	for i := 0; i < n; i++ {
+		nn, err := rd.ReadArrayLen()
+		if err != nil {
+			return nil, err
+		}
+		if nn != 10 {
+			return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM FULL reply,"+
+				"wanted 10", nn)
+		}
+
+		group := XInfoStreamGroup{}
+
+		for f := 0; f < 5; f++ {
+			key, err := rd.ReadString()
+			if err != nil {
+				return nil, err
+			}
+
+			switch key {
+			case "name":
+				group.Name, err = rd.ReadString()
+			case "last-delivered-id":
+				group.LastDeliveredID, err = rd.ReadString()
+			case "pel-count":
+				group.PelCount, err = rd.ReadIntReply()
+			case "pending":
+				group.Pending, err = readXInfoStreamGroupPending(rd)
+			case "consumers":
+				group.Consumers, err = readXInfoStreamConsumers(rd)
+			default:
+				return nil, fmt.Errorf("redis: unexpected content %s "+
+					"in XINFO STREAM reply", key)
+			}
+
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		groups = append(groups, group)
+	}
+
+	return groups, nil
+}
+
+func readXInfoStreamGroupPending(rd *proto.Reader) ([]XInfoStreamGroupPending, error) {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return nil, err
+	}
+
+	pending := make([]XInfoStreamGroupPending, 0, n)
+
+	for i := 0; i < n; i++ {
+		nn, err := rd.ReadArrayLen()
+		if err != nil {
+			return nil, err
+		}
+		if nn != 4 {
+			return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM FULL reply,"+
+				"wanted 4", nn)
+		}
+
+		p := XInfoStreamGroupPending{}
+
+		p.ID, err = rd.ReadString()
+		if err != nil {
+			return nil, err
+		}
+
+		p.Consumer, err = rd.ReadString()
+		if err != nil {
+			return nil, err
+		}
+
+		delivery, err := rd.ReadIntReply()
+		if err != nil {
+			return nil, err
+		}
+		p.DeliveryTime = time.Unix(delivery/1000, delivery%1000*int64(time.Millisecond))
+
+		p.DeliveryCount, err = rd.ReadIntReply()
+		if err != nil {
+			return nil, err
+		}
+
+		pending = append(pending, p)
+	}
+
+	return pending, nil
+}
+
+func readXInfoStreamConsumers(rd *proto.Reader) ([]XInfoStreamConsumer, error) {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return nil, err
+	}
+
+	consumers := make([]XInfoStreamConsumer, 0, n)
+
+	for i := 0; i < n; i++ {
+		nn, err := rd.ReadArrayLen()
+		if err != nil {
+			return nil, err
+		}
+		if nn != 8 {
+			return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM FULL reply,"+
+				"wanted 8", nn)
+		}
+
+		c := XInfoStreamConsumer{}
+
+		for f := 0; f < 4; f++ {
+			cKey, err := rd.ReadString()
+			if err != nil {
+				return nil, err
+			}
+
+			switch cKey {
+			case "name":
+				c.Name, err = rd.ReadString()
+			case "seen-time":
+				seen, err := rd.ReadIntReply()
+				if err != nil {
+					return nil, err
+				}
+				c.SeenTime = time.Unix(seen/1000, seen%1000*int64(time.Millisecond))
+			case "pel-count":
+				c.PelCount, err = rd.ReadIntReply()
+			case "pending":
+				pendingNumber, err := rd.ReadArrayLen()
+				if err != nil {
+					return nil, err
+				}
+
+				c.Pending = make([]XInfoStreamConsumerPending, 0, pendingNumber)
+
+				for pn := 0; pn < pendingNumber; pn++ {
+					nn, err := rd.ReadArrayLen()
+					if err != nil {
+						return nil, err
+					}
+					if nn != 3 {
+						return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM reply,"+
+							"wanted 3", nn)
+					}
+
+					p := XInfoStreamConsumerPending{}
+
+					p.ID, err = rd.ReadString()
+					if err != nil {
+						return nil, err
+					}
+
+					delivery, err := rd.ReadIntReply()
+					if err != nil {
+						return nil, err
+					}
+					p.DeliveryTime = time.Unix(delivery/1000, delivery%1000*int64(time.Millisecond))
+
+					p.DeliveryCount, err = rd.ReadIntReply()
+					if err != nil {
+						return nil, err
+					}
+
+					c.Pending = append(c.Pending, p)
+				}
+			default:
+				return nil, fmt.Errorf("redis: unexpected content %s "+
+					"in XINFO STREAM reply", cKey)
+			}
+			if err != nil {
+				return nil, err
+			}
+		}
+		consumers = append(consumers, c)
+	}
+
+	return consumers, nil
+}
+
+//------------------------------------------------------------------------------
+
 type ZSliceCmd struct {
 	baseCmd
 

vendor/github.com/go-redis/redis/v8/commands.go

@@ -179,6 +179,7 @@ type Cmdable interface {
 	LInsertAfter(ctx context.Context, key string, pivot, value interface{}) *IntCmd
 	LLen(ctx context.Context, key string) *IntCmd
 	LPop(ctx context.Context, key string) *StringCmd
+	LPopCount(ctx context.Context, key string, count int) *StringSliceCmd
 	LPos(ctx context.Context, key string, value string, args LPosArgs) *IntCmd
 	LPosCount(ctx context.Context, key string, value string, count int64, args LPosArgs) *IntSliceCmd
 	LPush(ctx context.Context, key string, values ...interface{}) *IntCmd
@@ -200,6 +201,7 @@ type Cmdable interface {
 	SInter(ctx context.Context, keys ...string) *StringSliceCmd
 	SInterStore(ctx context.Context, destination string, keys ...string) *IntCmd
 	SIsMember(ctx context.Context, key string, member interface{}) *BoolCmd
+	SMIsMember(ctx context.Context, key string, members ...interface{}) *BoolSliceCmd
 	SMembers(ctx context.Context, key string) *StringSliceCmd
 	SMembersMap(ctx context.Context, key string) *StringStructMapCmd
 	SMove(ctx context.Context, source, destination string, member interface{}) *BoolCmd
@@ -252,6 +254,8 @@ type Cmdable interface {
 	ZCount(ctx context.Context, key, min, max string) *IntCmd
 	ZLexCount(ctx context.Context, key, min, max string) *IntCmd
 	ZIncrBy(ctx context.Context, key string, increment float64, member string) *FloatCmd
+	ZInter(ctx context.Context, store *ZStore) *StringSliceCmd
+	ZInterWithScores(ctx context.Context, store *ZStore) *ZSliceCmd
 	ZInterStore(ctx context.Context, destination string, store *ZStore) *IntCmd
 	ZMScore(ctx context.Context, key string, members ...string) *FloatSliceCmd
 	ZPopMax(ctx context.Context, key string, count ...int64) *ZSliceCmd
@@ -275,6 +279,9 @@ type Cmdable interface {
 	ZScore(ctx context.Context, key, member string) *FloatCmd
 	ZUnionStore(ctx context.Context, dest string, store *ZStore) *IntCmd
 	ZRandMember(ctx context.Context, key string, count int, withScores bool) *StringSliceCmd
+	ZDiff(ctx context.Context, keys ...string) *StringSliceCmd
+	ZDiffWithScores(ctx context.Context, keys ...string) *ZSliceCmd
+	ZDiffStore(ctx context.Context, destination string, keys ...string) *IntCmd
 
 	PFAdd(ctx context.Context, key string, els ...interface{}) *IntCmd
 	PFCount(ctx context.Context, keys ...string) *IntCmd
@@ -1313,6 +1320,12 @@ func (c cmdable) LPop(ctx context.Context, key string) *StringCmd {
 	return cmd
 }
 
+func (c cmdable) LPopCount(ctx context.Context, key string, count int) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "lpop", key, count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 type LPosArgs struct {
 	Rank, MaxLen int64
 }
@@ -1508,6 +1521,17 @@ func (c cmdable) SIsMember(ctx context.Context, key string, member interface{})
 	return cmd
 }
 
+// Redis `SMISMEMBER key member [member ...]` command.
+func (c cmdable) SMIsMember(ctx context.Context, key string, members ...interface{}) *BoolSliceCmd {
+	args := make([]interface{}, 2, 2+len(members))
+	args[0] = "smismember"
+	args[1] = key
+	args = appendArgs(args, members)
+	cmd := NewBoolSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 // Redis `SMEMBERS key` command output as a slice.
 func (c cmdable) SMembers(ctx context.Context, key string) *StringSliceCmd {
 	cmd := NewStringSliceCmd(ctx, "smembers", key)
@@ -1752,7 +1776,7 @@ func (c cmdable) XReadGroup(ctx context.Context, a *XReadGroupArgs) *XStreamSlic
 	args := make([]interface{}, 0, 8+len(a.Streams))
 	args = append(args, "xreadgroup", "group", a.Group, a.Consumer)
 
-	keyPos := int8(1)
+	keyPos := int8(4)
 	if a.Count > 0 {
 		args = append(args, "count", a.Count)
 		keyPos += 2
@@ -1799,6 +1823,7 @@ func (c cmdable) XPending(ctx context.Context, stream, group string) *XPendingCm
 type XPendingExtArgs struct {
 	Stream   string
 	Group    string
+	Idle     time.Duration
 	Start    string
 	End      string
 	Count    int64
@@ -1806,8 +1831,12 @@ type XPendingExtArgs struct {
 }
 
 func (c cmdable) XPendingExt(ctx context.Context, a *XPendingExtArgs) *XPendingExtCmd {
-	args := make([]interface{}, 0, 7)
-	args = append(args, "xpending", a.Stream, a.Group, a.Start, a.End, a.Count)
+	args := make([]interface{}, 0, 9)
+	args = append(args, "xpending", a.Stream, a.Group)
+	if a.Idle != 0 {
+		args = append(args, "idle", formatMs(ctx, a.Idle))
+	}
+	args = append(args, a.Start, a.End, a.Count)
 	if a.Consumer != "" {
 		args = append(args, a.Consumer)
 	}
@@ -1882,6 +1911,19 @@ func (c cmdable) XInfoStream(ctx context.Context, key string) *XInfoStreamCmd {
 	return cmd
 }
 
+// XInfoStreamFull XINFO STREAM FULL [COUNT count]
+// redis-server >= 6.0.
+func (c cmdable) XInfoStreamFull(ctx context.Context, key string, count int) *XInfoStreamFullCmd {
+	args := make([]interface{}, 0, 6)
+	args = append(args, "xinfo", "stream", key, "full")
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	cmd := NewXInfoStreamFullCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 //------------------------------------------------------------------------------
 
 // Z represents sorted set member.
@@ -1904,6 +1946,17 @@ type ZStore struct {
 	Aggregate string
 }
 
+func (z *ZStore) len() (n int) {
+	n = len(z.Keys)
+	if len(z.Weights) > 0 {
+		n += 1 + len(z.Weights)
+	}
+	if z.Aggregate != "" {
+		n += 2
+	}
+	return n
+}
+
 // Redis `BZPOPMAX key [key ...] timeout` command.
 func (c cmdable) BZPopMax(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd {
 	args := make([]interface{}, 1+len(keys)+1)
@@ -2049,7 +2102,7 @@ func (c cmdable) ZIncrBy(ctx context.Context, key string, increment float64, mem
 }
 
 func (c cmdable) ZInterStore(ctx context.Context, destination string, store *ZStore) *IntCmd {
-	args := make([]interface{}, 0, 3+len(store.Keys))
+	args := make([]interface{}, 0, 3+store.len())
 	args = append(args, "zinterstore", destination, len(store.Keys))
 	for _, key := range store.Keys {
 		args = append(args, key)
@@ -2069,6 +2122,50 @@ func (c cmdable) ZInterStore(ctx context.Context, destination string, store *ZSt
 	return cmd
 }
 
+func (c cmdable) ZInter(ctx context.Context, store *ZStore) *StringSliceCmd {
+	args := make([]interface{}, 0, 2+store.len())
+	args = append(args, "zinter", len(store.Keys))
+	for _, key := range store.Keys {
+		args = append(args, key)
+	}
+	if len(store.Weights) > 0 {
+		args = append(args, "weights")
+		for _, weights := range store.Weights {
+			args = append(args, weights)
+		}
+	}
+
+	if store.Aggregate != "" {
+		args = append(args, "aggregate", store.Aggregate)
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	cmd.setFirstKeyPos(2)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZInterWithScores(ctx context.Context, store *ZStore) *ZSliceCmd {
+	args := make([]interface{}, 0, 3+store.len())
+	args = append(args, "zinter", len(store.Keys))
+	for _, key := range store.Keys {
+		args = append(args, key)
+	}
+	if len(store.Weights) > 0 {
+		args = append(args, "weights")
+		for _, weights := range store.Weights {
+			args = append(args, weights)
+		}
+	}
+	if store.Aggregate != "" {
+		args = append(args, "aggregate", store.Aggregate)
+	}
+	args = append(args, "withscores")
+	cmd := NewZSliceCmd(ctx, args...)
+	cmd.setFirstKeyPos(2)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 func (c cmdable) ZMScore(ctx context.Context, key string, members ...string) *FloatSliceCmd {
 	args := make([]interface{}, 2+len(members))
 	args[0] = "zmscore"
@@ -2295,7 +2392,7 @@ func (c cmdable) ZScore(ctx context.Context, key, member string) *FloatCmd {
 }
 
 func (c cmdable) ZUnionStore(ctx context.Context, dest string, store *ZStore) *IntCmd {
-	args := make([]interface{}, 0, 3+len(store.Keys))
+	args := make([]interface{}, 0, 3+store.len())
 	args = append(args, "zunionstore", dest, len(store.Keys))
 	for _, key := range store.Keys {
 		args = append(args, key)
@@ -2331,6 +2428,49 @@ func (c cmdable) ZRandMember(ctx context.Context, key string, count int, withSco
 	return cmd
 }
 
+// redis-server version >= 6.2.0.
+func (c cmdable) ZDiff(ctx context.Context, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "zdiff"
+	args[1] = len(keys)
+	for i, key := range keys {
+		args[i+2] = key
+	}
+
+	cmd := NewStringSliceCmd(ctx, args...)
+	cmd.setFirstKeyPos(2)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// redis-server version >= 6.2.0.
+func (c cmdable) ZDiffWithScores(ctx context.Context, keys ...string) *ZSliceCmd {
+	args := make([]interface{}, 3+len(keys))
+	args[0] = "zdiff"
+	args[1] = len(keys)
+	for i, key := range keys {
+		args[i+2] = key
+	}
+	args[len(keys)+2] = "withscores"
+
+	cmd := NewZSliceCmd(ctx, args...)
+	cmd.setFirstKeyPos(2)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// redis-server version >=6.2.0.
+func (c cmdable) ZDiffStore(ctx context.Context, destination string, keys ...string) *IntCmd {
+	args := make([]interface{}, 0, 3+len(keys))
+	args = append(args, "zdiffstore", destination, len(keys))
+	for _, key := range keys {
+		args = append(args, key)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 //------------------------------------------------------------------------------
 
 func (c cmdable) PFAdd(ctx context.Context, key string, els ...interface{}) *IntCmd {
@@ -2590,6 +2730,7 @@ func (c cmdable) MemoryUsage(ctx context.Context, key string, samples ...int) *I
 		args = append(args, "SAMPLES", samples[0])
 	}
 	cmd := NewIntCmd(ctx, args...)
+	cmd.setFirstKeyPos(2)
 	_ = c(ctx, cmd)
 	return cmd
 }
@@ -2606,6 +2747,7 @@ func (c cmdable) Eval(ctx context.Context, script string, keys []string, args ..
 	}
 	cmdArgs = appendArgs(cmdArgs, args)
 	cmd := NewCmd(ctx, cmdArgs...)
+	cmd.setFirstKeyPos(3)
 	_ = c(ctx, cmd)
 	return cmd
 }
@@ -2620,6 +2762,7 @@ func (c cmdable) EvalSha(ctx context.Context, sha1 string, keys []string, args .
 	}
 	cmdArgs = appendArgs(cmdArgs, args)
 	cmd := NewCmd(ctx, cmdArgs...)
+	cmd.setFirstKeyPos(3)
 	_ = c(ctx, cmd)
 	return cmd
 }

vendor/github.com/go-redis/redis/v8/error.go

@@ -10,6 +10,7 @@ import (
 	"github.com/go-redis/redis/v8/internal/proto"
 )
 
+// ErrClosed performs any operation on the closed client will return this error.
 var ErrClosed = pool.ErrClosed
 
 type Error interface {

vendor/github.com/go-redis/redis/v8/go.mod

@@ -7,7 +7,5 @@ require (
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f
 	github.com/onsi/ginkgo v1.15.0
 	github.com/onsi/gomega v1.10.5
-	go.opentelemetry.io/otel v0.19.0
-	go.opentelemetry.io/otel/metric v0.19.0
-	go.opentelemetry.io/otel/trace v0.19.0
+	go.opentelemetry.io/otel/metric v0.20.0
 )

vendor/github.com/go-redis/redis/v8/go.sum

@@ -37,14 +37,14 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-go.opentelemetry.io/otel v0.19.0 h1:Lenfy7QHRXPZVsw/12CWpxX6d/JkrX8wrx2vO8G80Ng=
-go.opentelemetry.io/otel v0.19.0/go.mod h1:j9bF567N9EfomkSidSfmMwIwIBuP37AMAIzVW85OxSg=
-go.opentelemetry.io/otel/metric v0.19.0 h1:dtZ1Ju44gkJkYvo+3qGqVXmf88tc+a42edOywypengg=
-go.opentelemetry.io/otel/metric v0.19.0/go.mod h1:8f9fglJPRnXuskQmKpnad31lcLJ2VmNNqIsx/uIwBSc=
-go.opentelemetry.io/otel/oteltest v0.19.0 h1:YVfA0ByROYqTwOxqHVZYZExzEpfZor+MU1rU+ip2v9Q=
-go.opentelemetry.io/otel/oteltest v0.19.0/go.mod h1:tI4yxwh8U21v7JD6R3BcA/2+RBoTKFexE/PJ/nSO7IA=
-go.opentelemetry.io/otel/trace v0.19.0 h1:1ucYlenXIDA1OlHVLDZKX0ObXV5RLaq06DtUKz5e5zc=
-go.opentelemetry.io/otel/trace v0.19.0/go.mod h1:4IXiNextNOpPnRlI4ryK69mn5iC84bjBWZQA5DXz/qg=
+go.opentelemetry.io/otel v0.20.0 h1:eaP0Fqu7SXHwvjiqDq83zImeehOHX8doTvU9AwXON8g=
+go.opentelemetry.io/otel v0.20.0/go.mod h1:Y3ugLH2oa81t5QO+Lty+zXf8zC9L26ax4Nzoxm/dooo=
+go.opentelemetry.io/otel/metric v0.20.0 h1:4kzhXFP+btKm4jwxpjIqjs41A7MakRFUS86bqLHTIw8=
+go.opentelemetry.io/otel/metric v0.20.0/go.mod h1:598I5tYlH1vzBjn+BTuhzTCSb/9debfNp6R3s7Pr1eU=
+go.opentelemetry.io/otel/oteltest v0.20.0 h1:HiITxCawalo5vQzdHfKeZurV8x7ljcqAgiWzF6Vaeaw=
+go.opentelemetry.io/otel/oteltest v0.20.0/go.mod h1:L7bgKf9ZB7qCwT9Up7i9/pn0PWIa9FqQ2IQ8LoxiGnw=
+go.opentelemetry.io/otel/trace v0.20.0 h1:1DL6EXUdcg95gukhuRRvLDO/4X5THh/5dIV52lqtnbw=
+go.opentelemetry.io/otel/trace v0.20.0/go.mod h1:6GjCW8zgDjwGHGa6GkyeB8+/5vjT16gUEi0Nf1iBdgw=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=

vendor/github.com/go-redis/redis/v8/internal/hashtag/hashtag.go

@@ -60,7 +60,7 @@ func RandomSlot() int {
 	return rand.Intn(slotNumber)
 }
 
-// hashSlot returns a consistent slot number between 0 and 16383
+// Slot returns a consistent slot number between 0 and 16383
 // for any given string key.
 func Slot(key string) int {
 	if key == "" {

vendor/github.com/go-redis/redis/v8/internal/log.go

@@ -19,6 +19,8 @@ func (l *logger) Printf(ctx context.Context, format string, v ...interface{}) {
 	_ = l.log.Output(2, fmt.Sprintf(format, v...))
 }
 
+// Logger calls Output to print to the stderr.
+// Arguments are handled in the manner of fmt.Print.
 var Logger Logging = &logger{
 	log: log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile),
 }

vendor/github.com/go-redis/redis/v8/internal/pool/conn.go

@@ -65,26 +65,17 @@ func (cn *Conn) RemoteAddr() net.Addr {
 }
 
 func (cn *Conn) WithReader(ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error) error {
-	ctx, span := internal.StartSpan(ctx, "redis.with_reader")
-	defer span.End()
-
 	if err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout)); err != nil {
-		return internal.RecordError(ctx, span, err)
+		return err
 	}
-	if err := fn(cn.rd); err != nil {
-		return internal.RecordError(ctx, span, err)
-	}
-	return nil
+	return fn(cn.rd)
 }
 
 func (cn *Conn) WithWriter(
 	ctx context.Context, timeout time.Duration, fn func(wr *proto.Writer) error,
 ) error {
-	ctx, span := internal.StartSpan(ctx, "redis.with_writer")
-	defer span.End()
-
 	if err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout)); err != nil {
-		return internal.RecordError(ctx, span, err)
+		return err
 	}
 
 	if cn.bw.Buffered() > 0 {
@@ -92,11 +83,11 @@ func (cn *Conn) WithWriter(
 	}
 
 	if err := fn(cn.wr); err != nil {
-		return internal.RecordError(ctx, span, err)
+		return err
 	}
 
 	if err := cn.bw.Flush(); err != nil {
-		return internal.RecordError(ctx, span, err)
+		return err
 	}
 
 	internal.WritesCounter.Add(ctx, 1)

vendor/github.com/go-redis/redis/v8/internal/pool/pool.go

@@ -12,7 +12,10 @@ import (
 )
 
 var (
-	ErrClosed      = errors.New("redis: client is closed")
+	// ErrClosed performs any operation on the closed client will return this error.
+	ErrClosed = errors.New("redis: client is closed")
+
+	// ErrPoolTimeout timed out waiting to get a connection from the connection pool.
 	ErrPoolTimeout = errors.New("redis: connection pool timeout")
 )
 

vendor/github.com/go-redis/redis/v8/internal/proto/reader.go

@@ -8,6 +8,7 @@ import (
 	"github.com/go-redis/redis/v8/internal/util"
 )
 
+// redis resp protocol data type.
 const (
 	ErrorReply  = '-'
 	StatusReply = '+'

vendor/github.com/go-redis/redis/v8/internal/util.go

@@ -4,16 +4,10 @@ import (
 	"context"
 	"time"
 
-	"github.com/go-redis/redis/v8/internal/proto"
 	"github.com/go-redis/redis/v8/internal/util"
-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/trace"
 )
 
 func Sleep(ctx context.Context, dur time.Duration) error {
-	_, span := StartSpan(ctx, "time.Sleep")
-	defer span.End()
-
 	t := time.NewTimer(dur)
 	defer t.Stop()
 
@@ -50,21 +44,3 @@ func isLower(s string) bool {
 	}
 	return true
 }
-
-//------------------------------------------------------------------------------
-
-var tracer = otel.Tracer("github.com/go-redis/redis")
-
-func StartSpan(ctx context.Context, name string) (context.Context, trace.Span) {
-	if span := trace.SpanFromContext(ctx); !span.IsRecording() {
-		return ctx, span
-	}
-	return tracer.Start(ctx, name)
-}
-
-func RecordError(ctx context.Context, span trace.Span, err error) error {
-	if err != proto.Nil {
-		span.RecordError(err)
-	}
-	return err
-}

vendor/github.com/go-redis/redis/v8/options.go

@@ -12,9 +12,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/go-redis/redis/v8/internal"
 	"github.com/go-redis/redis/v8/internal/pool"
-	"go.opentelemetry.io/otel/attribute"
 )
 
 // Limiter is the interface of a rate limiter or a circuit breaker.
@@ -291,21 +289,7 @@ func getUserPassword(u *url.URL) (string, string) {
 func newConnPool(opt *Options) *pool.ConnPool {
 	return pool.NewConnPool(&pool.Options{
 		Dialer: func(ctx context.Context) (net.Conn, error) {
-			ctx, span := internal.StartSpan(ctx, "redis.dial")
-			defer span.End()
-
-			if span.IsRecording() {
-				span.SetAttributes(
-					attribute.String("db.connection_string", opt.Addr),
-				)
-			}
-
-			cn, err := opt.Dialer(ctx, opt.Network, opt.Addr)
-			if err != nil {
-				return nil, internal.RecordError(ctx, span, err)
-			}
-
-			return cn, nil
+			return opt.Dialer(ctx, opt.Network, opt.Addr)
 		},
 		PoolSize:           opt.PoolSize,
 		MinIdleConns:       opt.MinIdleConns,

vendor/github.com/go-redis/redis/v8/pubsub.go

@@ -2,7 +2,6 @@ package redis
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"strings"
 	"sync"
@@ -13,13 +12,6 @@ import (
 	"github.com/go-redis/redis/v8/internal/proto"
 )
 
-const (
-	pingTimeout     = time.Second
-	chanSendTimeout = time.Minute
-)
-
-var errPingTimeout = errors.New("redis: ping timeout")
-
 // PubSub implements Pub/Sub commands as described in
 // http://redis.io/topics/pubsub. Message receiving is NOT safe
 // for concurrent use by multiple goroutines.
@@ -43,9 +35,12 @@ type PubSub struct {
 	cmd *Cmd
 
 	chOnce sync.Once
-	msgCh  chan *Message
-	allCh  chan interface{}
-	ping   chan struct{}
+	msgCh  *channel
+	allCh  *channel
+}
+
+func (c *PubSub) init() {
+	c.exit = make(chan struct{})
 }
 
 func (c *PubSub) String() string {
@@ -54,10 +49,6 @@ func (c *PubSub) String() string {
 	return fmt.Sprintf("PubSub(%s)", strings.Join(channels, ", "))
 }
 
-func (c *PubSub) init() {
-	c.exit = make(chan struct{})
-}
-
 func (c *PubSub) connWithLock(ctx context.Context) (*pool.Conn, error) {
 	c.mu.Lock()
 	cn, err := c.conn(ctx, nil)
@@ -418,56 +409,6 @@ func (c *PubSub) ReceiveMessage(ctx context.Context) (*Message, error) {
 	}
 }
 
-// Channel returns a Go channel for concurrently receiving messages.
-// The channel is closed together with the PubSub. If the Go channel
-// is blocked full for 30 seconds the message is dropped.
-// Receive* APIs can not be used after channel is created.
-//
-// go-redis periodically sends ping messages to test connection health
-// and re-subscribes if ping can not not received for 30 seconds.
-func (c *PubSub) Channel() <-chan *Message {
-	return c.ChannelSize(100)
-}
-
-// ChannelSize is like Channel, but creates a Go channel
-// with specified buffer size.
-func (c *PubSub) ChannelSize(size int) <-chan *Message {
-	c.chOnce.Do(func() {
-		c.initPing()
-		c.initMsgChan(size)
-	})
-	if c.msgCh == nil {
-		err := fmt.Errorf("redis: Channel can't be called after ChannelWithSubscriptions")
-		panic(err)
-	}
-	if cap(c.msgCh) != size {
-		err := fmt.Errorf("redis: PubSub.Channel size can not be changed once created")
-		panic(err)
-	}
-	return c.msgCh
-}
-
-// ChannelWithSubscriptions is like Channel, but message type can be either
-// *Subscription or *Message. Subscription messages can be used to detect
-// reconnections.
-//
-// ChannelWithSubscriptions can not be used together with Channel or ChannelSize.
-func (c *PubSub) ChannelWithSubscriptions(ctx context.Context, size int) <-chan interface{} {
-	c.chOnce.Do(func() {
-		c.initPing()
-		c.initAllChan(size)
-	})
-	if c.allCh == nil {
-		err := fmt.Errorf("redis: ChannelWithSubscriptions can't be called after Channel")
-		panic(err)
-	}
-	if cap(c.allCh) != size {
-		err := fmt.Errorf("redis: PubSub.Channel size can not be changed once created")
-		panic(err)
-	}
-	return c.allCh
-}
-
 func (c *PubSub) getContext() context.Context {
 	if c.cmd != nil {
 		return c.cmd.ctx
@@ -475,36 +416,135 @@ func (c *PubSub) getContext() context.Context {
 	return context.Background()
 }
 
-func (c *PubSub) initPing() {
+//------------------------------------------------------------------------------
+
+// Channel returns a Go channel for concurrently receiving messages.
+// The channel is closed together with the PubSub. If the Go channel
+// is blocked full for 30 seconds the message is dropped.
+// Receive* APIs can not be used after channel is created.
+//
+// go-redis periodically sends ping messages to test connection health
+// and re-subscribes if ping can not not received for 30 seconds.
+func (c *PubSub) Channel(opts ...ChannelOption) <-chan *Message {
+	c.chOnce.Do(func() {
+		c.msgCh = newChannel(c, opts...)
+		c.msgCh.initMsgChan()
+	})
+	if c.msgCh == nil {
+		err := fmt.Errorf("redis: Channel can't be called after ChannelWithSubscriptions")
+		panic(err)
+	}
+	return c.msgCh.msgCh
+}
+
+// ChannelSize is like Channel, but creates a Go channel
+// with specified buffer size.
+//
+// Deprecated: use Channel(WithChannelSize(size)), remove in v9.
+func (c *PubSub) ChannelSize(size int) <-chan *Message {
+	return c.Channel(WithChannelSize(size))
+}
+
+// ChannelWithSubscriptions is like Channel, but message type can be either
+// *Subscription or *Message. Subscription messages can be used to detect
+// reconnections.
+//
+// ChannelWithSubscriptions can not be used together with Channel or ChannelSize.
+func (c *PubSub) ChannelWithSubscriptions(_ context.Context, size int) <-chan interface{} {
+	c.chOnce.Do(func() {
+		c.allCh = newChannel(c, WithChannelSize(size))
+		c.allCh.initAllChan()
+	})
+	if c.allCh == nil {
+		err := fmt.Errorf("redis: ChannelWithSubscriptions can't be called after Channel")
+		panic(err)
+	}
+	return c.allCh.allCh
+}
+
+type ChannelOption func(c *channel)
+
+// WithChannelSize specifies the Go chan size that is used to buffer incoming messages.
+//
+// The default is 100 messages.
+func WithChannelSize(size int) ChannelOption {
+	return func(c *channel) {
+		c.chanSize = size
+	}
+}
+
+// WithChannelHealthCheckInterval specifies the health check interval.
+// PubSub will ping Redis Server if it does not receive any messages within the interval.
+// To disable health check, use zero interval.
+//
+// The default is 3 seconds.
+func WithChannelHealthCheckInterval(d time.Duration) ChannelOption {
+	return func(c *channel) {
+		c.checkInterval = d
+	}
+}
+
+// WithChannelSendTimeout specifies the channel send timeout after which
+// the message is dropped.
+//
+// The default is 60 seconds.
+func WithChannelSendTimeout(d time.Duration) ChannelOption {
+	return func(c *channel) {
+		c.chanSendTimeout = d
+	}
+}
+
+type channel struct {
+	pubSub *PubSub
+
+	msgCh chan *Message
+	allCh chan interface{}
+	ping  chan struct{}
+
+	chanSize        int
+	chanSendTimeout time.Duration
+	checkInterval   time.Duration
+}
+
+func newChannel(pubSub *PubSub, opts ...ChannelOption) *channel {
+	c := &channel{
+		pubSub: pubSub,
+
+		chanSize:        100,
+		chanSendTimeout: time.Minute,
+		checkInterval:   3 * time.Second,
+	}
+	for _, opt := range opts {
+		opt(c)
+	}
+	if c.checkInterval > 0 {
+		c.initHealthCheck()
+	}
+	return c
+}
+
+func (c *channel) initHealthCheck() {
 	ctx := context.TODO()
 	c.ping = make(chan struct{}, 1)
+
 	go func() {
 		timer := time.NewTimer(time.Minute)
 		timer.Stop()
 
-		healthy := true
 		for {
-			timer.Reset(pingTimeout)
+			timer.Reset(c.checkInterval)
 			select {
 			case <-c.ping:
-				healthy = true
 				if !timer.Stop() {
 					<-timer.C
 				}
 			case <-timer.C:
-				pingErr := c.Ping(ctx)
-				if healthy {
-					healthy = false
-				} else {
-					if pingErr == nil {
-						pingErr = errPingTimeout
-					}
-					c.mu.Lock()
-					c.reconnect(ctx, pingErr)
-					healthy = true
-					c.mu.Unlock()
+				if pingErr := c.pubSub.Ping(ctx); pingErr != nil {
+					c.pubSub.mu.Lock()
+					c.pubSub.reconnect(ctx, pingErr)
+					c.pubSub.mu.Unlock()
 				}
-			case <-c.exit:
+			case <-c.pubSub.exit:
 				return
 			}
 		}
@@ -512,16 +552,17 @@ func (c *PubSub) initPing() {
 }
 
 // initMsgChan must be in sync with initAllChan.
-func (c *PubSub) initMsgChan(size int) {
+func (c *channel) initMsgChan() {
 	ctx := context.TODO()
-	c.msgCh = make(chan *Message, size)
+	c.msgCh = make(chan *Message, c.chanSize)
+
 	go func() {
 		timer := time.NewTimer(time.Minute)
 		timer.Stop()
 
 		var errCount int
 		for {
-			msg, err := c.Receive(ctx)
+			msg, err := c.pubSub.Receive(ctx)
 			if err != nil {
 				if err == pool.ErrClosed {
 					close(c.msgCh)
@@ -548,7 +589,7 @@ func (c *PubSub) initMsgChan(size int) {
 			case *Pong:
 				// Ignore.
 			case *Message:
-				timer.Reset(chanSendTimeout)
+				timer.Reset(c.chanSendTimeout)
 				select {
 				case c.msgCh <- msg:
 					if !timer.Stop() {
@@ -556,30 +597,28 @@ func (c *PubSub) initMsgChan(size int) {
 					}
 				case <-timer.C:
 					internal.Logger.Printf(
-						c.getContext(),
-						"redis: %s channel is full for %s (message is dropped)",
-						c,
-						chanSendTimeout,
-					)
+						ctx, "redis: %s channel is full for %s (message is dropped)",
+						c, c.chanSendTimeout)
 				}
 			default:
-				internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
+				internal.Logger.Printf(ctx, "redis: unknown message type: %T", msg)
 			}
 		}
 	}()
 }
 
 // initAllChan must be in sync with initMsgChan.
-func (c *PubSub) initAllChan(size int) {
+func (c *channel) initAllChan() {
 	ctx := context.TODO()
-	c.allCh = make(chan interface{}, size)
+	c.allCh = make(chan interface{}, c.chanSize)
+
 	go func() {
-		timer := time.NewTimer(pingTimeout)
+		timer := time.NewTimer(time.Minute)
 		timer.Stop()
 
 		var errCount int
 		for {
-			msg, err := c.Receive(ctx)
+			msg, err := c.pubSub.Receive(ctx)
 			if err != nil {
 				if err == pool.ErrClosed {
 					close(c.allCh)
@@ -601,29 +640,23 @@ func (c *PubSub) initAllChan(size int) {
 			}
 
 			switch msg := msg.(type) {
-			case *Subscription:
-				c.sendMessage(msg, timer)
 			case *Pong:
 				// Ignore.
-			case *Message:
-				c.sendMessage(msg, timer)
+			case *Subscription, *Message:
+				timer.Reset(c.chanSendTimeout)
+				select {
+				case c.allCh <- msg:
+					if !timer.Stop() {
+						<-timer.C
+					}
+				case <-timer.C:
+					internal.Logger.Printf(
+						ctx, "redis: %s channel is full for %s (message is dropped)",
+						c, c.chanSendTimeout)
+				}
 			default:
-				internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
+				internal.Logger.Printf(ctx, "redis: unknown message type: %T", msg)
 			}
 		}
 	}()
 }
-
-func (c *PubSub) sendMessage(msg interface{}, timer *time.Timer) {
-	timer.Reset(pingTimeout)
-	select {
-	case c.allCh <- msg:
-		if !timer.Stop() {
-			<-timer.C
-		}
-	case <-timer.C:
-		internal.Logger.Printf(
-			c.getContext(),
-			"redis: %s channel is full for %s (message is dropped)", c, pingTimeout)
-	}
-}

vendor/github.com/go-redis/redis/v8/redis.go

@@ -10,7 +10,6 @@ import (
 	"github.com/go-redis/redis/v8/internal"
 	"github.com/go-redis/redis/v8/internal/pool"
 	"github.com/go-redis/redis/v8/internal/proto"
-	"go.opentelemetry.io/otel/attribute"
 )
 
 // Nil reply returned by Redis when key does not exist.
@@ -237,9 +236,6 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
 		return nil
 	}
 
-	ctx, span := internal.StartSpan(ctx, "redis.init_conn")
-	defer span.End()
-
 	connPool := pool.NewSingleConnPool(c.connPool, cn)
 	conn := newConn(ctx, c.opt, connPool)
 
@@ -287,20 +283,11 @@ func (c *baseClient) releaseConn(ctx context.Context, cn *pool.Conn, err error)
 func (c *baseClient) withConn(
 	ctx context.Context, fn func(context.Context, *pool.Conn) error,
 ) error {
-	ctx, span := internal.StartSpan(ctx, "redis.with_conn")
-	defer span.End()
-
 	cn, err := c.getConn(ctx)
 	if err != nil {
 		return err
 	}
 
-	if span.IsRecording() {
-		if remoteAddr := cn.RemoteAddr(); remoteAddr != nil {
-			span.SetAttributes(attribute.String("net.peer.ip", remoteAddr.String()))
-		}
-	}
-
 	defer func() {
 		c.releaseConn(ctx, cn, err)
 	}()

vendor/github.com/go-redis/redis/v8/sentinel.go

@@ -40,8 +40,6 @@ type FailoverOptions struct {
 	// Now, this option only works in RandomSlaveAddr function.
 	UseDisconnectedSlaves bool
 
-	// Client queries sentinels in a random order
-	QuerySentinelRandomly bool
 	// Following options are copied from Options struct.
 
 	Dialer    func(ctx context.Context, network, addr string) (net.Conn, error)
@@ -221,14 +219,21 @@ func masterSlaveDialer(
 				failover.trySwitchMaster(ctx, addr)
 			}
 		}
-
 		if err != nil {
 			return nil, err
 		}
 		if failover.opt.Dialer != nil {
 			return failover.opt.Dialer(ctx, network, addr)
 		}
-		return net.DialTimeout("tcp", addr, failover.opt.DialTimeout)
+
+		netDialer := &net.Dialer{
+			Timeout:   failover.opt.DialTimeout,
+			KeepAlive: 5 * time.Minute,
+		}
+		if failover.opt.TLSConfig == nil {
+			return netDialer.DialContext(ctx, network, addr)
+		}
+		return tls.DialWithDialer(netDialer, network, addr, failover.opt.TLSConfig)
 	}
 }