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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
121 lines
2.7 KiB
Go
121 lines
2.7 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package cache
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import (
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"errors"
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"strings"
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"github.com/hanzoai/git/modules/json"
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"github.com/hanzoai/git/modules/setting"
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"github.com/hanzoai/git/modules/util"
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chi_cache "github.com/hanzoai/git/modules/cache/chi" //nolint:depguard // we wrap this package here
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)
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type GetJSONError struct {
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err error
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cachedError string // Golang error can't be stored in cache, only the string message could be stored
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}
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func (e *GetJSONError) ToError() error {
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if e.err != nil {
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return e.err
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}
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return errors.New("cached error: " + e.cachedError)
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}
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type StringCache interface {
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Ping() error
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Get(key string) (string, bool)
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Put(key, value string, ttl int64) error
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Delete(key string) error
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IsExist(key string) bool
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PutJSON(key string, v any, ttl int64) error
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GetJSON(key string, ptr any) (exist bool, err *GetJSONError)
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ChiCache() chi_cache.Cache
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}
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type stringCache struct {
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chiCache chi_cache.Cache
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}
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func NewStringCache(cacheConfig setting.Cache) (StringCache, error) {
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adapter := util.IfZero(cacheConfig.Adapter, "memory")
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interval := util.IfZero(cacheConfig.Interval, 60)
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cc, err := chi_cache.NewCacher(chi_cache.Options{
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Adapter: adapter,
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AdapterConfig: cacheConfig.Conn,
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Interval: interval,
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})
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if err != nil {
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return nil, err
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}
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return &stringCache{chiCache: cc}, nil
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}
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func (sc *stringCache) Ping() error {
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return sc.chiCache.Ping()
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}
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func (sc *stringCache) Get(key string) (string, bool) {
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v := sc.chiCache.Get(key)
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if v == nil {
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return "", false
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}
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s, ok := v.(string)
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return s, ok
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}
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func (sc *stringCache) Put(key, value string, ttl int64) error {
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return sc.chiCache.Put(key, value, ttl)
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}
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func (sc *stringCache) Delete(key string) error {
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return sc.chiCache.Delete(key)
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}
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func (sc *stringCache) IsExist(key string) bool {
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return sc.chiCache.IsExist(key)
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}
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const cachedErrorPrefix = "<CACHED-ERROR>:"
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func (sc *stringCache) PutJSON(key string, v any, ttl int64) error {
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var s string
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switch v := v.(type) {
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case error:
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s = cachedErrorPrefix + v.Error()
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default:
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b, err := json.Marshal(v)
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if err != nil {
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return err
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}
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s = util.UnsafeBytesToString(b)
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}
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return sc.chiCache.Put(key, s, ttl)
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}
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func (sc *stringCache) GetJSON(key string, ptr any) (exist bool, getErr *GetJSONError) {
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s, ok := sc.Get(key)
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if !ok || s == "" {
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return false, nil
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}
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s, isCachedError := strings.CutPrefix(s, cachedErrorPrefix)
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if isCachedError {
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return true, &GetJSONError{cachedError: s}
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}
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if err := json.Unmarshal(util.UnsafeStringToBytes(s), ptr); err != nil {
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return false, &GetJSONError{err: err}
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}
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return true, nil
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}
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func (sc *stringCache) ChiCache() chi_cache.Cache {
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return sc.chiCache
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}
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