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- // Copyright 2017 The Gitea Authors. All rights reserved.
- // Use of this source code is governed by a MIT-style
- // license that can be found in the LICENSE file.
-
- package cache
-
- import (
- "fmt"
- "strconv"
-
- "code.gitea.io/gitea/modules/setting"
-
- mc "gitea.com/macaron/cache"
-
- _ "gitea.com/macaron/cache/memcache" // memcache plugin for cache
- _ "gitea.com/macaron/cache/redis"
- )
-
- var (
- conn mc.Cache
- )
-
- func newCache(cacheConfig setting.Cache) (mc.Cache, error) {
- return mc.NewCacher(cacheConfig.Adapter, mc.Options{
- Adapter: cacheConfig.Adapter,
- AdapterConfig: cacheConfig.Conn,
- Interval: cacheConfig.Interval,
- })
- }
-
- // NewContext start cache service
- func NewContext() error {
- var err error
-
- if conn == nil && setting.CacheService.Enabled {
- if conn, err = newCache(setting.CacheService.Cache); err != nil {
- return err
- }
- }
-
- return err
- }
-
- // GetInt returns key value from cache with callback when no key exists in cache
- func GetInt(key string, getFunc func() (int, error)) (int, error) {
- if conn == nil || setting.CacheService.TTL == 0 {
- return getFunc()
- }
- if !conn.IsExist(key) {
- var (
- value int
- err error
- )
- if value, err = getFunc(); err != nil {
- return value, err
- }
- err = conn.Put(key, value, int64(setting.CacheService.TTL.Seconds()))
- if err != nil {
- return 0, err
- }
- }
- switch value := conn.Get(key).(type) {
- case int:
- return value, nil
- case string:
- v, err := strconv.Atoi(value)
- if err != nil {
- return 0, err
- }
- return v, nil
- default:
- return 0, fmt.Errorf("Unsupported cached value type: %v", value)
- }
- }
-
- // GetInt64 returns key value from cache with callback when no key exists in cache
- func GetInt64(key string, getFunc func() (int64, error)) (int64, error) {
- if conn == nil || setting.CacheService.TTL == 0 {
- return getFunc()
- }
- if !conn.IsExist(key) {
- var (
- value int64
- err error
- )
- if value, err = getFunc(); err != nil {
- return value, err
- }
- err = conn.Put(key, value, int64(setting.CacheService.TTL.Seconds()))
- if err != nil {
- return 0, err
- }
- }
- switch value := conn.Get(key).(type) {
- case int64:
- return value, nil
- case string:
- v, err := strconv.ParseInt(value, 10, 64)
- if err != nil {
- return 0, err
- }
- return v, nil
- default:
- return 0, fmt.Errorf("Unsupported cached value type: %v", value)
- }
- }
-
- // Remove key from cache
- func Remove(key string) {
- if conn == nil {
- return
- }
- _ = conn.Delete(key)
- }
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