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* script new file * add license * remove print * fix: RunRo output function
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| // Copyright (c) 2013 The github.com/go-redis/redis Authors. | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // * Redistributions in binary form must reproduce the above | ||
| // copyright notice, this list of conditions and the following disclaimer | ||
| // in the documentation and/or other materials provided with the | ||
| // distribution. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| package valkeycompat | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/sha1" | ||
| "encoding/hex" | ||
| "io" | ||
| "strings" | ||
| ) | ||
|
|
||
| type Scripter interface { | ||
| Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd | ||
| EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd | ||
| EvalRO(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd | ||
| EvalShaRO(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd | ||
| ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd | ||
| ScriptLoad(ctx context.Context, script string) *StringCmd | ||
| } | ||
|
|
||
| var ( | ||
| _ Scripter = (*Compat)(nil) | ||
| ) | ||
|
|
||
| type Script struct { | ||
| src, hash string | ||
| } | ||
|
|
||
| func NewScript(src string) *Script { | ||
| h := sha1.New() | ||
| _, _ = io.WriteString(h, src) | ||
| return &Script{ | ||
| src: src, | ||
| hash: hex.EncodeToString(h.Sum(nil)), | ||
| } | ||
| } | ||
|
|
||
| func (s *Script) Hash() string { | ||
| return s.hash | ||
| } | ||
|
|
||
| func (s *Script) Load(ctx context.Context, c Scripter) *StringCmd { | ||
| return c.ScriptLoad(ctx, s.src) | ||
| } | ||
|
|
||
| func (s *Script) Exists(ctx context.Context, c Scripter) *BoolSliceCmd { | ||
| return c.ScriptExists(ctx, s.hash) | ||
| } | ||
|
|
||
| func (s *Script) Eval(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| return c.Eval(ctx, s.src, keys, args...) | ||
| } | ||
|
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||
| func (s *Script) EvalRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| return c.EvalRO(ctx, s.src, keys, args...) | ||
| } | ||
|
|
||
| func (s *Script) EvalSha(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| return c.EvalSha(ctx, s.hash, keys, args...) | ||
| } | ||
|
|
||
| func (s *Script) EvalShaRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| return c.EvalShaRO(ctx, s.hash, keys, args...) | ||
| } | ||
|
|
||
| // Run optimistically uses EVALSHA to run the script. If script does not exist | ||
| // it is retried using EVAL. | ||
| func (s *Script) Run(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| r := s.EvalSha(ctx, c, keys, args...) | ||
| if err := r.Err(); err != nil { | ||
| msg := err.Error() | ||
| msg = strings.TrimPrefix(msg, "ERR ") | ||
| if strings.HasPrefix(msg, "NOSCRIPT") { | ||
| return s.Eval(ctx, c, keys, args...) | ||
| } | ||
| } | ||
| return r | ||
| } | ||
|
|
||
| // RunRO optimistically uses EVALSHA_RO to run the script. If script does not exist | ||
| // it is retried using EVAL_RO. | ||
| func (s *Script) RunRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd { | ||
| r := s.EvalShaRO(ctx, c, keys, args...) | ||
| if err := r.Err(); err != nil { | ||
| msg := err.Error() | ||
| msg = strings.TrimPrefix(msg, "ERR ") | ||
| if strings.HasPrefix(msg, "NOSCRIPT") { | ||
| return s.EvalRO(ctx, c, keys, args...) | ||
| } | ||
| } | ||
| return r | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // Copyright (c) 2013 The github.com/go-redis/redis Authors. | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // * Redistributions in binary form must reproduce the above | ||
| // copyright notice, this list of conditions and the following disclaimer | ||
| // in the documentation and/or other materials provided with the | ||
| // distribution. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| package valkeycompat | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
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| "github.com/valkey-io/valkey-go" | ||
| ) | ||
|
|
||
| func ExampleScript() { | ||
| ctx = context.Background() | ||
| IncrByXX := NewScript(` | ||
| if redis.call("GET", KEYS[1]) ~= false then | ||
| return redis.call("INCRBY", KEYS[1], ARGV[1]) | ||
| end | ||
| return false | ||
| `) | ||
| client, err := valkey.NewClient(valkey.ClientOption{InitAddress: []string{"127.0.0.1:6379"}}) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer client.Close() | ||
| rdb := NewAdapter(client) | ||
| n, err := IncrByXX.Run(ctx, rdb, []string{"xx_counter"}, 2).Result() | ||
| fmt.Println(n, err) | ||
|
|
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| err = rdb.Set(ctx, "xx_counter", "40", 0).Err() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| n, err = IncrByXX.Run(ctx, rdb, []string{"xx_counter"}, 2).Result() | ||
| fmt.Println(n, err) | ||
| } |