gitea

Commit Graph

Author	SHA1	Message	Date
Lunny Xiao	bd820aa9c5	Add context cache as a request level cache (#22294 ) To avoid duplicated load of the same data in an HTTP request, we can set a context cache to do that. i.e. Some pages may load a user from a database with the same id in different areas on the same page. But the code is hidden in two different deep logic. How should we share the user? As a result of this PR, now if both entry functions accept `context.Context` as the first parameter and we just need to refactor `GetUserByID` to reuse the user from the context cache. Then it will not be loaded twice on an HTTP request. But of course, sometimes we would like to reload an object from the database, that's why `RemoveContextData` is also exposed. The core context cache is here. It defines a new context ```go type cacheContext struct { ctx context.Context data map[any]map[any]any lock sync.RWMutex } var cacheContextKey = struct{}{} func WithCacheContext(ctx context.Context) context.Context { return context.WithValue(ctx, cacheContextKey, &cacheContext{ ctx: ctx, data: make(map[any]map[any]any), }) } ``` Then you can use the below 4 methods to read/write/del the data within the same context. ```go func GetContextData(ctx context.Context, tp, key any) any func SetContextData(ctx context.Context, tp, key, value any) func RemoveContextData(ctx context.Context, tp, key any) func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error) ``` Then let's take a look at how `system.GetString` implement it. ```go func GetSetting(ctx context.Context, key string) (string, error) { return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) { return cache.GetString(genSettingCacheKey(key), func() (string, error) { res, err := GetSettingNoCache(ctx, key) if err != nil { return "", err } return res.SettingValue, nil }) }) } ``` First, it will check if context data include the setting object with the key. If not, it will query from the global cache which may be memory or a Redis cache. If not, it will get the object from the database. In the end, if the object gets from the global cache or database, it will be set into the context cache. An object stored in the context cache will only be destroyed after the context disappeared.	2 years ago
KN4CK3R	a35749893b	Move `convert` package to services (#22264 ) Addition to #22256 The `convert` package relies heavily on different models which is [disallowed by our definition of modules](https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md#design-guideline). This helps to prevent possible import cycles. Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>	2 years ago
flynnnnnnnnnn	e81ccc406b	Implement FSFE REUSE for golang files (#21840 ) Change all license headers to comply with REUSE specification. Fix #16132 Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github> Co-authored-by: John Olheiser <john.olheiser@gmail.com>	2 years ago
Lunny Xiao	783a021889	Never use /api/v1 from Gitea UI Pages (#19318 ) Reusing `/api/v1` from Gitea UI Pages have pros and cons. Pros: 1) Less code copy Cons: 1) API/v1 have to support shared session with page requests. 2) You need to consider for each other when you want to change something about api/v1 or page. This PR moves all dependencies to API/v1 from UI Pages. Partially replace #16052	3 years ago

4 Commits (7d7ba76c08b6f9d1d9f6fdaa945f73c243e260f9)