niki/vendor/github.com/redis/go-redis/v9/string_commands.go

304 lines
9.5 KiB
Go

package redis
import (
"context"
"time"
)
type StringCmdable interface {
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
LCS(ctx context.Context, q *LCSQuery) *LCSCmd
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
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
}
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
}
// Get 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
}
// GetEx 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
}
// GetDel 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) LCS(ctx context.Context, q *LCSQuery) *LCSCmd {
cmd := NewLCSCmd(ctx, q)
_ = 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"})
// - MSet(struct), For struct types, see HSet description.
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"})
// - MSetNX(struct), For struct types, see HSet description.
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
}
// Set Redis `SET key value [expiration]` command.
// Use expiration for `SETEx`-like behavior.
//
// Zero expiration means the key has no expiration time.
// KeepTTL is a Redis KEEPTTL option to keep existing TTL, it requires your redis-server version >= 6.0,
// otherwise you will receive an error: (error) ERR syntax error.
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, it requires your redis-server version >= 6.0,
// otherwise you will receive an error: (error) ERR syntax error.
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
}
// SetEx 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
}
// SetNX Redis `SET key value [expiration] NX` command.
//
// Zero expiration means the key has no expiration time.
// KeepTTL is a Redis KEEPTTL option to keep existing TTL, it requires your redis-server version >= 6.0,
// otherwise you will receive an error: (error) ERR syntax error.
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
}
// SetXX Redis `SET key value [expiration] XX` command.
//
// Zero expiration means the key has no expiration time.
// KeepTTL is a Redis KEEPTTL option to keep existing TTL, it requires your redis-server version >= 6.0,
// otherwise you will receive an error: (error) ERR syntax error.
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
}