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
silverwind	fefdb7ffd1	Timeline and color tweaks (#21799 ) Followup to https://github.com/go-gitea/gitea/pull/21784. - Restore muted effect on timeline author and issuelist comment icon - Remove whitespace inside shared user templates, fixing link hover underline - Use shared author link template more - Use `bold` class instead of CSS - Fix grey-light color being too dark on arc-green - Add missing black-light color - Fix issuelist progress bar color - Fix various other cases of missing `.muted` <img width="416" alt="Screenshot 2022-11-13 at 12 15 22" src="https://user-images.githubusercontent.com/115237/201519497-1d4725c6-bc8b-47b5-9f68-1278ac9a8c92.png"> <img width="324" alt="Screenshot 2022-11-13 at 12 16 52" src="https://user-images.githubusercontent.com/115237/201519501-c0d03700-f9af-4316-ab46-482f2c7c738b.png"> <img width="79" alt="Screenshot 2022-11-13 at 12 30 55" src="https://user-images.githubusercontent.com/115237/201519502-46dc2d73-bbdf-4a2e-84d3-d2976f793163.png"> <img width="440" alt="Screenshot 2022-11-13 at 12 41 03" src="https://user-images.githubusercontent.com/115237/201519876-ada33948-f84a-4aeb-a40d-5c873f9a49e9.png"> <img width="213" alt="Screenshot 2022-11-13 at 12 52 54" src="https://user-images.githubusercontent.com/115237/201520291-a4d7238e-aeca-46c7-9008-8b644b1b676e.png"> <img width="208" alt="Screenshot 2022-11-13 at 12 56 16" src="https://user-images.githubusercontent.com/115237/201520436-aa8ba109-b959-42fb-831a-021e806c7082.png"> Co-authored-by: Lauris BH <lauris@nix.lv> Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>	2 years ago
zeripath	de7b87fbc2	Do not add links to Posters or Assignees with ID < 0 (#20577 ) There are several places in templates/repo/issue/view_content/comments.tmpl where links are made to Posters or Assignees who are Ghosts or have IDs <0. Fix #20559 Signed-off-by: Andrew Thornton <art27@cantab.net>	2 years ago

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

silverwind

fefdb7ffd1

Timeline and color tweaks (#21799 )

Followup to https://github.com/go-gitea/gitea/pull/21784.

- Restore muted effect on timeline author and issuelist comment icon
- Remove whitespace inside shared user templates, fixing link hover
underline
- Use shared author link template more
- Use `bold` class instead of CSS
- Fix grey-light color being too dark on arc-green
- Add missing black-light color
- Fix issuelist progress bar color
- Fix various other cases of missing `.muted`

<img width="416" alt="Screenshot 2022-11-13 at 12 15 22"
src="https://user-images.githubusercontent.com/115237/201519497-1d4725c6-bc8b-47b5-9f68-1278ac9a8c92.png">
<img width="324" alt="Screenshot 2022-11-13 at 12 16 52"
src="https://user-images.githubusercontent.com/115237/201519501-c0d03700-f9af-4316-ab46-482f2c7c738b.png">
<img width="79" alt="Screenshot 2022-11-13 at 12 30 55"
src="https://user-images.githubusercontent.com/115237/201519502-46dc2d73-bbdf-4a2e-84d3-d2976f793163.png">
<img width="440" alt="Screenshot 2022-11-13 at 12 41 03"
src="https://user-images.githubusercontent.com/115237/201519876-ada33948-f84a-4aeb-a40d-5c873f9a49e9.png">
<img width="213" alt="Screenshot 2022-11-13 at 12 52 54"
src="https://user-images.githubusercontent.com/115237/201520291-a4d7238e-aeca-46c7-9008-8b644b1b676e.png">
<img width="208" alt="Screenshot 2022-11-13 at 12 56 16"
src="https://user-images.githubusercontent.com/115237/201520436-aa8ba109-b959-42fb-831a-021e806c7082.png">

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

2 years ago

zeripath

de7b87fbc2

Do not add links to Posters or Assignees with ID < 0 (#20577 )

There are several places in templates/repo/issue/view_content/comments.tmpl where links are made to Posters or Assignees who are Ghosts or have IDs <0.

Fix #20559

Signed-off-by: Andrew Thornton <art27@cantab.net>

2 years ago

3 Commits (bd820aa9c52da4568b460a0b8604287f8ed8df26)