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commands.go
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commands.go
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package redis
import (
"context"
"errors"
"io"
"time"
"github.com/go-redis/redis/v8/internal"
)
// KeepTTL is an option for Set command to keep key's existing TTL.
// For example:
//
// rdb.Set(ctx, key, value, redis.KeepTTL)
const KeepTTL = -1
func usePrecise(dur time.Duration) bool {
return dur < time.Second || dur%time.Second != 0
}
func formatMs(ctx context.Context, dur time.Duration) int64 {
if dur > 0 && dur < time.Millisecond {
internal.Logger.Printf(
ctx,
"specified duration is %s, but minimal supported value is %s - truncating to 1ms",
dur, time.Millisecond,
)
return 1
}
return int64(dur / time.Millisecond)
}
func formatSec(ctx context.Context, dur time.Duration) int64 {
if dur > 0 && dur < time.Second {
internal.Logger.Printf(
ctx,
"specified duration is %s, but minimal supported value is %s - truncating to 1s",
dur, time.Second,
)
return 1
}
return int64(dur / time.Second)
}
func appendArgs(dst, src []interface{}) []interface{} {
if len(src) == 1 {
return appendArg(dst, src[0])
}
dst = append(dst, src...)
return dst
}
func appendArg(dst []interface{}, arg interface{}) []interface{} {
switch arg := arg.(type) {
case []string:
for _, s := range arg {
dst = append(dst, s)
}
return dst
case []interface{}:
dst = append(dst, arg...)
return dst
case map[string]interface{}:
for k, v := range arg {
dst = append(dst, k, v)
}
return dst
case map[string]string:
for k, v := range arg {
dst = append(dst, k, v)
}
return dst
default:
return append(dst, arg)
}
}
type Cmdable interface {
Pipeline() Pipeliner
Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error)
TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error)
TxPipeline() Pipeliner
Command(ctx context.Context) *CommandsInfoCmd
ClientGetName(ctx context.Context) *StringCmd
Echo(ctx context.Context, message interface{}) *StringCmd
Ping(ctx context.Context) *StatusCmd
Quit(ctx context.Context) *StatusCmd
Del(ctx context.Context, keys ...string) *IntCmd
Unlink(ctx context.Context, keys ...string) *IntCmd
Dump(ctx context.Context, key string) *StringCmd
Exists(ctx context.Context, keys ...string) *IntCmd
Expire(ctx context.Context, key string, expiration time.Duration) *BoolCmd
ExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd
Keys(ctx context.Context, pattern string) *StringSliceCmd
Migrate(ctx context.Context, host, port, key string, db int, timeout time.Duration) *StatusCmd
Move(ctx context.Context, key string, db int) *BoolCmd
ObjectRefCount(ctx context.Context, key string) *IntCmd
ObjectEncoding(ctx context.Context, key string) *StringCmd
ObjectIdleTime(ctx context.Context, key string) *DurationCmd
Persist(ctx context.Context, key string) *BoolCmd
PExpire(ctx context.Context, key string, expiration time.Duration) *BoolCmd
PExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd
PTTL(ctx context.Context, key string) *DurationCmd
RandomKey(ctx context.Context) *StringCmd
Rename(ctx context.Context, key, newkey string) *StatusCmd
RenameNX(ctx context.Context, key, newkey string) *BoolCmd
Restore(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd
RestoreReplace(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd
Sort(ctx context.Context, key string, sort *Sort) *StringSliceCmd
SortStore(ctx context.Context, key, store string, sort *Sort) *IntCmd
SortInterfaces(ctx context.Context, key string, sort *Sort) *SliceCmd
Touch(ctx context.Context, keys ...string) *IntCmd
TTL(ctx context.Context, key string) *DurationCmd
Type(ctx context.Context, key string) *StatusCmd
Append(ctx context.Context, key, value string) *IntCmd
Decr(ctx context.Context, key string) *IntCmd
DecrBy(ctx context.Context, key string, decrement int64) *IntCmd
Get(ctx context.Context, key string) *StringCmd
GetRange(ctx context.Context, key string, start, end int64) *StringCmd
GetSet(ctx context.Context, key string, value interface{}) *StringCmd
GetEx(ctx context.Context, key string, expiration time.Duration) *StringCmd
GetDel(ctx context.Context, key string) *StringCmd
Incr(ctx context.Context, key string) *IntCmd
IncrBy(ctx context.Context, key string, value int64) *IntCmd
IncrByFloat(ctx context.Context, key string, value float64) *FloatCmd
MGet(ctx context.Context, keys ...string) *SliceCmd
MSet(ctx context.Context, values ...interface{}) *StatusCmd
MSetNX(ctx context.Context, values ...interface{}) *BoolCmd
Set(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd
SetArgs(ctx context.Context, key string, value interface{}, a SetArgs) *StatusCmd
// TODO: rename to SetEx
SetEX(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd
SetNX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd
SetXX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd
SetRange(ctx context.Context, key string, offset int64, value string) *IntCmd
StrLen(ctx context.Context, key string) *IntCmd
GetBit(ctx context.Context, key string, offset int64) *IntCmd
SetBit(ctx context.Context, key string, offset int64, value int) *IntCmd
BitCount(ctx context.Context, key string, bitCount *BitCount) *IntCmd
BitOpAnd(ctx context.Context, destKey string, keys ...string) *IntCmd
BitOpOr(ctx context.Context, destKey string, keys ...string) *IntCmd
BitOpXor(ctx context.Context, destKey string, keys ...string) *IntCmd
BitOpNot(ctx context.Context, destKey string, key string) *IntCmd
BitPos(ctx context.Context, key string, bit int64, pos ...int64) *IntCmd
BitField(ctx context.Context, key string, args ...interface{}) *IntSliceCmd
Scan(ctx context.Context, cursor uint64, match string, count int64) *ScanCmd
ScanType(ctx context.Context, cursor uint64, match string, count int64, keyType string) *ScanCmd
SScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
HScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
ZScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
HDel(ctx context.Context, key string, fields ...string) *IntCmd
HExists(ctx context.Context, key, field string) *BoolCmd
HGet(ctx context.Context, key, field string) *StringCmd
HGetAll(ctx context.Context, key string) *StringStringMapCmd
HIncrBy(ctx context.Context, key, field string, incr int64) *IntCmd
HIncrByFloat(ctx context.Context, key, field string, incr float64) *FloatCmd
HKeys(ctx context.Context, key string) *StringSliceCmd
HLen(ctx context.Context, key string) *IntCmd
HMGet(ctx context.Context, key string, fields ...string) *SliceCmd
HSet(ctx context.Context, key string, values ...interface{}) *IntCmd
HMSet(ctx context.Context, key string, values ...interface{}) *BoolCmd
HSetNX(ctx context.Context, key, field string, value interface{}) *BoolCmd
HVals(ctx context.Context, key string) *StringSliceCmd
HRandField(ctx context.Context, key string, count int, withValues bool) *StringSliceCmd
BLPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd
BRPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd
BRPopLPush(ctx context.Context, source, destination string, timeout time.Duration) *StringCmd
LIndex(ctx context.Context, key string, index int64) *StringCmd
LInsert(ctx context.Context, key, op string, pivot, value interface{}) *IntCmd
LInsertBefore(ctx context.Context, key string, pivot, value interface{}) *IntCmd
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
LPushX(ctx context.Context, key string, values ...interface{}) *IntCmd
LRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
LRem(ctx context.Context, key string, count int64, value interface{}) *IntCmd
LSet(ctx context.Context, key string, index int64, value interface{}) *StatusCmd
LTrim(ctx context.Context, key string, start, stop int64) *StatusCmd
RPop(ctx context.Context, key string) *StringCmd
RPopLPush(ctx context.Context, source, destination string) *StringCmd
RPush(ctx context.Context, key string, values ...interface{}) *IntCmd
RPushX(ctx context.Context, key string, values ...interface{}) *IntCmd
LMove(ctx context.Context, source, destination, srcpos, destpos string) *StringCmd
SAdd(ctx context.Context, key string, members ...interface{}) *IntCmd
SCard(ctx context.Context, key string) *IntCmd
SDiff(ctx context.Context, keys ...string) *StringSliceCmd
SDiffStore(ctx context.Context, destination string, keys ...string) *IntCmd
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
SPop(ctx context.Context, key string) *StringCmd
SPopN(ctx context.Context, key string, count int64) *StringSliceCmd
SRandMember(ctx context.Context, key string) *StringCmd
SRandMemberN(ctx context.Context, key string, count int64) *StringSliceCmd
SRem(ctx context.Context, key string, members ...interface{}) *IntCmd
SUnion(ctx context.Context, keys ...string) *StringSliceCmd
SUnionStore(ctx context.Context, destination string, keys ...string) *IntCmd
XAdd(ctx context.Context, a *XAddArgs) *StringCmd
XDel(ctx context.Context, stream string, ids ...string) *IntCmd
XLen(ctx context.Context, stream string) *IntCmd
XRange(ctx context.Context, stream, start, stop string) *XMessageSliceCmd
XRangeN(ctx context.Context, stream, start, stop string, count int64) *XMessageSliceCmd
XRevRange(ctx context.Context, stream string, start, stop string) *XMessageSliceCmd
XRevRangeN(ctx context.Context, stream string, start, stop string, count int64) *XMessageSliceCmd
XRead(ctx context.Context, a *XReadArgs) *XStreamSliceCmd
XReadStreams(ctx context.Context, streams ...string) *XStreamSliceCmd
XGroupCreate(ctx context.Context, stream, group, start string) *StatusCmd
XGroupCreateMkStream(ctx context.Context, stream, group, start string) *StatusCmd
XGroupSetID(ctx context.Context, stream, group, start string) *StatusCmd
XGroupDestroy(ctx context.Context, stream, group string) *IntCmd
XGroupDelConsumer(ctx context.Context, stream, group, consumer string) *IntCmd
XReadGroup(ctx context.Context, a *XReadGroupArgs) *XStreamSliceCmd
XAck(ctx context.Context, stream, group string, ids ...string) *IntCmd
XPending(ctx context.Context, stream, group string) *XPendingCmd
XPendingExt(ctx context.Context, a *XPendingExtArgs) *XPendingExtCmd
XClaim(ctx context.Context, a *XClaimArgs) *XMessageSliceCmd
XClaimJustID(ctx context.Context, a *XClaimArgs) *StringSliceCmd
XTrim(ctx context.Context, key string, maxLen int64) *IntCmd
XTrimApprox(ctx context.Context, key string, maxLen int64) *IntCmd
XInfoGroups(ctx context.Context, key string) *XInfoGroupsCmd
XInfoStream(ctx context.Context, key string) *XInfoStreamCmd
XInfoConsumers(ctx context.Context, key string, group string) *XInfoConsumersCmd
BZPopMax(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd
BZPopMin(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd
ZAdd(ctx context.Context, key string, members ...*Z) *IntCmd
ZAddNX(ctx context.Context, key string, members ...*Z) *IntCmd
ZAddXX(ctx context.Context, key string, members ...*Z) *IntCmd
ZAddCh(ctx context.Context, key string, members ...*Z) *IntCmd
ZAddNXCh(ctx context.Context, key string, members ...*Z) *IntCmd
ZAddXXCh(ctx context.Context, key string, members ...*Z) *IntCmd
ZIncr(ctx context.Context, key string, member *Z) *FloatCmd
ZIncrNX(ctx context.Context, key string, member *Z) *FloatCmd
ZIncrXX(ctx context.Context, key string, member *Z) *FloatCmd
ZCard(ctx context.Context, key string) *IntCmd
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
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
ZPopMin(ctx context.Context, key string, count ...int64) *ZSliceCmd
ZRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
ZRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd
ZRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
ZRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
ZRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd
ZRank(ctx context.Context, key, member string) *IntCmd
ZRem(ctx context.Context, key string, members ...interface{}) *IntCmd
ZRemRangeByRank(ctx context.Context, key string, start, stop int64) *IntCmd
ZRemRangeByScore(ctx context.Context, key, min, max string) *IntCmd
ZRemRangeByLex(ctx context.Context, key, min, max string) *IntCmd
ZRevRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
ZRevRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd
ZRevRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
ZRevRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
ZRevRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd
ZRevRank(ctx context.Context, key, member string) *IntCmd
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
PFAdd(ctx context.Context, key string, els ...interface{}) *IntCmd
PFCount(ctx context.Context, keys ...string) *IntCmd
PFMerge(ctx context.Context, dest string, keys ...string) *StatusCmd
BgRewriteAOF(ctx context.Context) *StatusCmd
BgSave(ctx context.Context) *StatusCmd
ClientKill(ctx context.Context, ipPort string) *StatusCmd
ClientKillByFilter(ctx context.Context, keys ...string) *IntCmd
ClientList(ctx context.Context) *StringCmd
ClientPause(ctx context.Context, dur time.Duration) *BoolCmd
ClientID(ctx context.Context) *IntCmd
ConfigGet(ctx context.Context, parameter string) *SliceCmd
ConfigResetStat(ctx context.Context) *StatusCmd
ConfigSet(ctx context.Context, parameter, value string) *StatusCmd
ConfigRewrite(ctx context.Context) *StatusCmd
DBSize(ctx context.Context) *IntCmd
FlushAll(ctx context.Context) *StatusCmd
FlushAllAsync(ctx context.Context) *StatusCmd
FlushDB(ctx context.Context) *StatusCmd
FlushDBAsync(ctx context.Context) *StatusCmd
Info(ctx context.Context, section ...string) *StringCmd
LastSave(ctx context.Context) *IntCmd
Save(ctx context.Context) *StatusCmd
Shutdown(ctx context.Context) *StatusCmd
ShutdownSave(ctx context.Context) *StatusCmd
ShutdownNoSave(ctx context.Context) *StatusCmd
SlaveOf(ctx context.Context, host, port string) *StatusCmd
Time(ctx context.Context) *TimeCmd
DebugObject(ctx context.Context, key string) *StringCmd
ReadOnly(ctx context.Context) *StatusCmd
ReadWrite(ctx context.Context) *StatusCmd
MemoryUsage(ctx context.Context, key string, samples ...int) *IntCmd
Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
ScriptFlush(ctx context.Context) *StatusCmd
ScriptKill(ctx context.Context) *StatusCmd
ScriptLoad(ctx context.Context, script string) *StringCmd
Publish(ctx context.Context, channel string, message interface{}) *IntCmd
PubSubChannels(ctx context.Context, pattern string) *StringSliceCmd
PubSubNumSub(ctx context.Context, channels ...string) *StringIntMapCmd
PubSubNumPat(ctx context.Context) *IntCmd
ClusterSlots(ctx context.Context) *ClusterSlotsCmd
ClusterNodes(ctx context.Context) *StringCmd
ClusterMeet(ctx context.Context, host, port string) *StatusCmd
ClusterForget(ctx context.Context, nodeID string) *StatusCmd
ClusterReplicate(ctx context.Context, nodeID string) *StatusCmd
ClusterResetSoft(ctx context.Context) *StatusCmd
ClusterResetHard(ctx context.Context) *StatusCmd
ClusterInfo(ctx context.Context) *StringCmd
ClusterKeySlot(ctx context.Context, key string) *IntCmd
ClusterGetKeysInSlot(ctx context.Context, slot int, count int) *StringSliceCmd
ClusterCountFailureReports(ctx context.Context, nodeID string) *IntCmd
ClusterCountKeysInSlot(ctx context.Context, slot int) *IntCmd
ClusterDelSlots(ctx context.Context, slots ...int) *StatusCmd
ClusterDelSlotsRange(ctx context.Context, min, max int) *StatusCmd
ClusterSaveConfig(ctx context.Context) *StatusCmd
ClusterSlaves(ctx context.Context, nodeID string) *StringSliceCmd
ClusterFailover(ctx context.Context) *StatusCmd
ClusterAddSlots(ctx context.Context, slots ...int) *StatusCmd
ClusterAddSlotsRange(ctx context.Context, min, max int) *StatusCmd
GeoAdd(ctx context.Context, key string, geoLocation ...*GeoLocation) *IntCmd
GeoPos(ctx context.Context, key string, members ...string) *GeoPosCmd
GeoRadius(ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery) *GeoLocationCmd
GeoRadiusStore(ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery) *IntCmd
GeoRadiusByMember(ctx context.Context, key, member string, query *GeoRadiusQuery) *GeoLocationCmd
GeoRadiusByMemberStore(ctx context.Context, key, member string, query *GeoRadiusQuery) *IntCmd
GeoDist(ctx context.Context, key string, member1, member2, unit string) *FloatCmd
GeoHash(ctx context.Context, key string, members ...string) *StringSliceCmd
}
type StatefulCmdable interface {
Cmdable
Auth(ctx context.Context, password string) *StatusCmd
AuthACL(ctx context.Context, username, password string) *StatusCmd
Select(ctx context.Context, index int) *StatusCmd
SwapDB(ctx context.Context, index1, index2 int) *StatusCmd
ClientSetName(ctx context.Context, name string) *BoolCmd
}
var (
_ Cmdable = (*Client)(nil)
_ Cmdable = (*Tx)(nil)
_ Cmdable = (*Ring)(nil)
_ Cmdable = (*ClusterClient)(nil)
)
type cmdable func(ctx context.Context, cmd Cmder) error
type statefulCmdable func(ctx context.Context, cmd Cmder) error
//------------------------------------------------------------------------------
func (c statefulCmdable) Auth(ctx context.Context, password string) *StatusCmd {
cmd := NewStatusCmd(ctx, "auth", password)
_ = c(ctx, cmd)
return cmd
}
// Perform an AUTH command, using the given user and pass.
// Should be used 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.
func (c statefulCmdable) AuthACL(ctx context.Context, username, password string) *StatusCmd {
cmd := NewStatusCmd(ctx, "auth", username, password)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Wait(ctx context.Context, numSlaves int, timeout time.Duration) *IntCmd {
cmd := NewIntCmd(ctx, "wait", numSlaves, int(timeout/time.Millisecond))
_ = c(ctx, cmd)
return cmd
}
func (c statefulCmdable) Select(ctx context.Context, index int) *StatusCmd {
cmd := NewStatusCmd(ctx, "select", index)
_ = c(ctx, cmd)
return cmd
}
func (c statefulCmdable) SwapDB(ctx context.Context, index1, index2 int) *StatusCmd {
cmd := NewStatusCmd(ctx, "swapdb", index1, index2)
_ = c(ctx, cmd)
return cmd
}
// ClientSetName assigns a name to the connection.
func (c statefulCmdable) ClientSetName(ctx context.Context, name string) *BoolCmd {
cmd := NewBoolCmd(ctx, "client", "setname", name)
_ = c(ctx, cmd)
return cmd
}
//------------------------------------------------------------------------------
func (c cmdable) Command(ctx context.Context) *CommandsInfoCmd {
cmd := NewCommandsInfoCmd(ctx, "command")
_ = c(ctx, cmd)
return cmd
}
// ClientGetName returns the name of the connection.
func (c cmdable) ClientGetName(ctx context.Context) *StringCmd {
cmd := NewStringCmd(ctx, "client", "getname")
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Echo(ctx context.Context, message interface{}) *StringCmd {
cmd := NewStringCmd(ctx, "echo", message)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Ping(ctx context.Context) *StatusCmd {
cmd := NewStatusCmd(ctx, "ping")
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Quit(ctx context.Context) *StatusCmd {
panic("not implemented")
}
func (c cmdable) Del(ctx context.Context, keys ...string) *IntCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "del"
for i, key := range keys {
args[1+i] = key
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Unlink(ctx context.Context, keys ...string) *IntCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "unlink"
for i, key := range keys {
args[1+i] = key
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Dump(ctx context.Context, key string) *StringCmd {
cmd := NewStringCmd(ctx, "dump", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Exists(ctx context.Context, keys ...string) *IntCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "exists"
for i, key := range keys {
args[1+i] = key
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Expire(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
cmd := NewBoolCmd(ctx, "expire", key, formatSec(ctx, expiration))
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) ExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd {
cmd := NewBoolCmd(ctx, "expireat", key, tm.Unix())
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Keys(ctx context.Context, pattern string) *StringSliceCmd {
cmd := NewStringSliceCmd(ctx, "keys", pattern)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Migrate(ctx context.Context, host, port, key string, db int, timeout time.Duration) *StatusCmd {
cmd := NewStatusCmd(
ctx,
"migrate",
host,
port,
key,
db,
formatMs(ctx, timeout),
)
cmd.setReadTimeout(timeout)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Move(ctx context.Context, key string, db int) *BoolCmd {
cmd := NewBoolCmd(ctx, "move", key, db)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) ObjectRefCount(ctx context.Context, key string) *IntCmd {
cmd := NewIntCmd(ctx, "object", "refcount", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) ObjectEncoding(ctx context.Context, key string) *StringCmd {
cmd := NewStringCmd(ctx, "object", "encoding", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) ObjectIdleTime(ctx context.Context, key string) *DurationCmd {
cmd := NewDurationCmd(ctx, time.Second, "object", "idletime", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Persist(ctx context.Context, key string) *BoolCmd {
cmd := NewBoolCmd(ctx, "persist", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) PExpire(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
cmd := NewBoolCmd(ctx, "pexpire", key, formatMs(ctx, expiration))
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) PExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd {
cmd := NewBoolCmd(
ctx,
"pexpireat",
key,
tm.UnixNano()/int64(time.Millisecond),
)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) PTTL(ctx context.Context, key string) *DurationCmd {
cmd := NewDurationCmd(ctx, time.Millisecond, "pttl", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) RandomKey(ctx context.Context) *StringCmd {
cmd := NewStringCmd(ctx, "randomkey")
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Rename(ctx context.Context, key, newkey string) *StatusCmd {
cmd := NewStatusCmd(ctx, "rename", key, newkey)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) RenameNX(ctx context.Context, key, newkey string) *BoolCmd {
cmd := NewBoolCmd(ctx, "renamenx", key, newkey)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Restore(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd {
cmd := NewStatusCmd(
ctx,
"restore",
key,
formatMs(ctx, ttl),
value,
)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) RestoreReplace(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd {
cmd := NewStatusCmd(
ctx,
"restore",
key,
formatMs(ctx, ttl),
value,
"replace",
)
_ = c(ctx, cmd)
return cmd
}
type Sort struct {
By string
Offset, Count int64
Get []string
Order string
Alpha bool
}
func (sort *Sort) args(key string) []interface{} {
args := []interface{}{"sort", key}
if sort.By != "" {
args = append(args, "by", sort.By)
}
if sort.Offset != 0 || sort.Count != 0 {
args = append(args, "limit", sort.Offset, sort.Count)
}
for _, get := range sort.Get {
args = append(args, "get", get)
}
if sort.Order != "" {
args = append(args, sort.Order)
}
if sort.Alpha {
args = append(args, "alpha")
}
return args
}
func (c cmdable) Sort(ctx context.Context, key string, sort *Sort) *StringSliceCmd {
cmd := NewStringSliceCmd(ctx, sort.args(key)...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) SortStore(ctx context.Context, key, store string, sort *Sort) *IntCmd {
args := sort.args(key)
if store != "" {
args = append(args, "store", store)
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) SortInterfaces(ctx context.Context, key string, sort *Sort) *SliceCmd {
cmd := NewSliceCmd(ctx, sort.args(key)...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Touch(ctx context.Context, keys ...string) *IntCmd {
args := make([]interface{}, len(keys)+1)
args[0] = "touch"
for i, key := range keys {
args[i+1] = key
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) TTL(ctx context.Context, key string) *DurationCmd {
cmd := NewDurationCmd(ctx, time.Second, "ttl", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Type(ctx context.Context, key string) *StatusCmd {
cmd := NewStatusCmd(ctx, "type", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Append(ctx context.Context, key, value string) *IntCmd {
cmd := NewIntCmd(ctx, "append", key, value)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Decr(ctx context.Context, key string) *IntCmd {
cmd := NewIntCmd(ctx, "decr", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) DecrBy(ctx context.Context, key string, decrement int64) *IntCmd {
cmd := NewIntCmd(ctx, "decrby", key, decrement)
_ = c(ctx, cmd)
return cmd
}
// Redis `GET key` command. It returns redis.Nil error when key does not exist.
func (c cmdable) Get(ctx context.Context, key string) *StringCmd {
cmd := NewStringCmd(ctx, "get", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) GetRange(ctx context.Context, key string, start, end int64) *StringCmd {
cmd := NewStringCmd(ctx, "getrange", key, start, end)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) GetSet(ctx context.Context, key string, value interface{}) *StringCmd {
cmd := NewStringCmd(ctx, "getset", key, value)
_ = c(ctx, cmd)
return cmd
}
// An expiration of zero removes the TTL associated with the key (i.e. GETEX key persist).
// Requires Redis >= 6.2.0.
func (c cmdable) GetEx(ctx context.Context, key string, expiration time.Duration) *StringCmd {
args := make([]interface{}, 0, 4)
args = append(args, "getex", key)
if expiration > 0 {
if usePrecise(expiration) {
args = append(args, "px", formatMs(ctx, expiration))
} else {
args = append(args, "ex", formatSec(ctx, expiration))
}
} else if expiration == 0 {
args = append(args, "persist")
}
cmd := NewStringCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// redis-server version >= 6.2.0.
func (c cmdable) GetDel(ctx context.Context, key string) *StringCmd {
cmd := NewStringCmd(ctx, "getdel", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) Incr(ctx context.Context, key string) *IntCmd {
cmd := NewIntCmd(ctx, "incr", key)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) IncrBy(ctx context.Context, key string, value int64) *IntCmd {
cmd := NewIntCmd(ctx, "incrby", key, value)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) IncrByFloat(ctx context.Context, key string, value float64) *FloatCmd {
cmd := NewFloatCmd(ctx, "incrbyfloat", key, value)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) MGet(ctx context.Context, keys ...string) *SliceCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "mget"
for i, key := range keys {
args[1+i] = key
}
cmd := NewSliceCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// MSet is like Set but accepts multiple values:
// - MSet("key1", "value1", "key2", "value2")
// - MSet([]string{"key1", "value1", "key2", "value2"})
// - MSet(map[string]interface{}{"key1": "value1", "key2": "value2"})
func (c cmdable) MSet(ctx context.Context, values ...interface{}) *StatusCmd {
args := make([]interface{}, 1, 1+len(values))
args[0] = "mset"
args = appendArgs(args, values)
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// MSetNX is like SetNX but accepts multiple values:
// - MSetNX("key1", "value1", "key2", "value2")
// - MSetNX([]string{"key1", "value1", "key2", "value2"})
// - MSetNX(map[string]interface{}{"key1": "value1", "key2": "value2"})
func (c cmdable) MSetNX(ctx context.Context, values ...interface{}) *BoolCmd {
args := make([]interface{}, 1, 1+len(values))
args[0] = "msetnx"
args = appendArgs(args, values)
cmd := NewBoolCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// Redis `SET key value [expiration]` command.
// Use expiration for `SETEX`-like behavior.
//
// Zero expiration means the key has no expiration time.
// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
func (c cmdable) Set(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd {
args := make([]interface{}, 3, 5)
args[0] = "set"
args[1] = key
args[2] = value
if expiration > 0 {
if usePrecise(expiration) {
args = append(args, "px", formatMs(ctx, expiration))
} else {
args = append(args, "ex", formatSec(ctx, expiration))
}
} else if expiration == KeepTTL {
args = append(args, "keepttl")
}
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// SetArgs provides arguments for the SetArgs function.
type SetArgs struct {
// Mode can be `NX` or `XX` or empty.
Mode string
// Zero `TTL` or `Expiration` means that the key has no expiration time.
TTL time.Duration
ExpireAt time.Time
// When Get is true, the command returns the old value stored at key, or nil when key did not exist.
Get bool
// KeepTTL is a Redis KEEPTTL option to keep existing TTL.
KeepTTL bool
}
// SetArgs supports all the options that the SET command supports.
// It is the alternative to the Set function when you want
// to have more control over the options.
func (c cmdable) SetArgs(ctx context.Context, key string, value interface{}, a SetArgs) *StatusCmd {
args := []interface{}{"set", key, value}
if a.KeepTTL {
args = append(args, "keepttl")
}
if !a.ExpireAt.IsZero() {
args = append(args, "exat", a.ExpireAt.Unix())
}
if a.TTL > 0 {
if usePrecise(a.TTL) {
args = append(args, "px", formatMs(ctx, a.TTL))
} else {
args = append(args, "ex", formatSec(ctx, a.TTL))
}
}
if a.Mode != "" {
args = append(args, a.Mode)
}
if a.Get {
args = append(args, "get")
}
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// Redis `SETEX key expiration value` command.
func (c cmdable) SetEX(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd {
cmd := NewStatusCmd(ctx, "setex", key, formatSec(ctx, expiration), value)
_ = c(ctx, cmd)
return cmd
}
// Redis `SET key value [expiration] NX` command.
//
// Zero expiration means the key has no expiration time.
// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
func (c cmdable) SetNX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd {
var cmd *BoolCmd
switch expiration {
case 0:
// Use old `SETNX` to support old Redis versions.
cmd = NewBoolCmd(ctx, "setnx", key, value)
case KeepTTL:
cmd = NewBoolCmd(ctx, "set", key, value, "keepttl", "nx")
default:
if usePrecise(expiration) {
cmd = NewBoolCmd(ctx, "set", key, value, "px", formatMs(ctx, expiration), "nx")
} else {
cmd = NewBoolCmd(ctx, "set", key, value, "ex", formatSec(ctx, expiration), "nx")
}
}
_ = c(ctx, cmd)
return cmd
}
// Redis `SET key value [expiration] XX` command.
//
// Zero expiration means the key has no expiration time.
// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
func (c cmdable) SetXX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd {
var cmd *BoolCmd
switch expiration {
case 0:
cmd = NewBoolCmd(ctx, "set", key, value, "xx")
case KeepTTL:
cmd = NewBoolCmd(ctx, "set", key, value, "keepttl", "xx")
default:
if usePrecise(expiration) {
cmd = NewBoolCmd(ctx, "set", key, value, "px", formatMs(ctx, expiration), "xx")
} else {
cmd = NewBoolCmd(ctx, "set", key, value, "ex", formatSec(ctx, expiration), "xx")
}
}
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) SetRange(ctx context.Context, key string, offset int64, value string) *IntCmd {
cmd := NewIntCmd(ctx, "setrange", key, offset, value)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) StrLen(ctx context.Context, key string) *IntCmd {
cmd := NewIntCmd(ctx, "strlen", key)
_ = c(ctx, cmd)
return cmd
}
//------------------------------------------------------------------------------
func (c cmdable) GetBit(ctx context.Context, key string, offset int64) *IntCmd {
cmd := NewIntCmd(ctx, "getbit", key, offset)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) SetBit(ctx context.Context, key string, offset int64, value int) *IntCmd {
cmd := NewIntCmd(
ctx,
"setbit",
key,
offset,
value,
)
_ = c(ctx, cmd)
return cmd
}
type BitCount struct {
Start, End int64
}
func (c cmdable) BitCount(ctx context.Context, key string, bitCount *BitCount) *IntCmd {
args := []interface{}{"bitcount", key}
if bitCount != nil {
args = append(
args,
bitCount.Start,
bitCount.End,
)
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) bitOp(ctx context.Context, op, destKey string, keys ...string) *IntCmd {
args := make([]interface{}, 3+len(keys))
args[0] = "bitop"
args[1] = op
args[2] = destKey
for i, key := range keys {
args[3+i] = key
}
cmd := NewIntCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}