mirror of
https://github.com/go-gitea/gitea
synced 2024-11-17 23:54:25 +00:00
bd820aa9c5
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.
219 lines
9.2 KiB
Handlebars
219 lines
9.2 KiB
Handlebars
<div class="ui container" id="navbar" role="navigation" aria-label="{{.locale.Tr "aria.navbar"}}">
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{{$notificationUnreadCount := 0}}
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{{if .IsSigned}}
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{{if .NotificationUnreadCount}}{{$notificationUnreadCount = call .NotificationUnreadCount}}{{end}}
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{{end}}
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<div class="item brand gt-sb">
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<a href="{{AppSubUrl}}/" aria-label="{{if .IsSigned}}{{.locale.Tr "dashboard"}}{{else}}{{.locale.Tr "home"}}{{end}}">
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<img width="30" height="30" src="{{AssetUrlPrefix}}/img/logo.svg" alt="{{.locale.Tr "logo"}}" aria-hidden="true">
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</a>
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<div class="gt-df gt-ac">
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{{if .IsSigned}}
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<a href="{{AppSubUrl}}/notifications" class="tooltip mobile-only gt-mr-4 gt-mt-3" data-content="{{.locale.Tr "notifications"}}" aria-label="{{.locale.Tr "notifications"}}">
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<span class="fitted item">
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{{svg "octicon-bell"}}
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<span class="notification_count{{if not $notificationUnreadCount}} gt-hidden{{end}}">
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{{$notificationUnreadCount}}
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</span>
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</span>
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</a>
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{{end}}
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<div class="ui icon button mobile-only" id="navbar-expand-toggle">
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{{svg "octicon-three-bars"}}
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</div>
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</div>
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</div>
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{{if and .IsSigned .MustChangePassword}}
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{{/* No links */}}
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{{else if .IsSigned}}
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{{if not .UnitIssuesGlobalDisabled}}
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<a class="item {{if .PageIsIssues}}active{{end}}" href="{{AppSubUrl}}/issues">{{.locale.Tr "issues"}}</a>
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{{end}}
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{{if not .UnitPullsGlobalDisabled}}
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<a class="item {{if .PageIsPulls}}active{{end}}" href="{{AppSubUrl}}/pulls">{{.locale.Tr "pull_requests"}}</a>
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{{end}}
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{{if not (and .UnitIssuesGlobalDisabled .UnitPullsGlobalDisabled)}}
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{{if .ShowMilestonesDashboardPage}}<a class="item {{if .PageIsMilestonesDashboard}}active{{end}}" href="{{AppSubUrl}}/milestones">{{.locale.Tr "milestones"}}</a>{{end}}
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{{end}}
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<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/repos">{{.locale.Tr "explore"}}</a>
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{{else if .IsLandingPageOrganizations}}
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<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/organizations">{{.locale.Tr "explore"}}</a>
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{{else}}
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<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/repos">{{.locale.Tr "explore"}}</a>
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{{end}}
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{{template "custom/extra_links" .}}
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{{/* TODO
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<div class="item">
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<div class="ui icon input">
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<input class="searchbox" type="text" placeholder="{{.locale.Tr "search_project"}}">
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<i class="icon gt-df gt-ac gt-jc">{{svg "octicon-search" 16}}</i>
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</div>
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</div>
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*/}}
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{{if and .IsSigned .MustChangePassword}}
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<div class="right stackable menu">
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<div class="ui dropdown jump item tooltip" tabindex="-1" data-content="{{.locale.Tr "user_profile_and_more"}}">
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<span class="text">
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{{avatar $.Context .SignedUser 24 "tiny"}}
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<span class="sr-only">{{.locale.Tr "user_profile_and_more"}}</span>
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<span class="mobile-only">{{.SignedUser.Name}}</span>
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<span class="fitted not-mobile" tabindex="-1">{{svg "octicon-triangle-down"}}</span>
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</span>
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<div class="menu user-menu" tabindex="-1">
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<div class="ui header">
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{{.locale.Tr "signed_in_as"}} <strong>{{.SignedUser.Name}}</strong>
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</div>
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<div class="divider"></div>
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<a class="item link-action" href data-url="{{AppSubUrl}}/user/logout" data-redirect="{{AppSubUrl}}/">
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{{svg "octicon-sign-out"}}
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{{.locale.Tr "sign_out"}}<!-- Sign Out -->
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</a>
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</div><!-- end content avatar menu -->
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</div><!-- end dropdown avatar menu -->
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</div>
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{{else if .IsSigned}}
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<div class="right stackable menu">
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{{if EnableTimetracking}}
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<a class="active-stopwatch-trigger item ui gt-mx-0{{if not .ActiveStopwatch}} gt-hidden{{end}}" href="{{.ActiveStopwatch.IssueLink}}">
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<span class="fitted gt-relative">
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{{svg "octicon-stopwatch"}}
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<span class="header-stopwatch-dot"></span>
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<span class="sr-mobile-only">{{.locale.Tr "active_stopwatch"}}</span>
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</span>
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</a>
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<div class="active-stopwatch-popup tippy-target">
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<div class="gt-df gt-ac">
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<a class="stopwatch-link gt-df gt-ac" href="{{.ActiveStopwatch.IssueLink}}">
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{{svg "octicon-issue-opened" 16 "gt-mr-3"}}
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<span class="stopwatch-issue">{{.ActiveStopwatch.RepoSlug}}#{{.ActiveStopwatch.IssueIndex}}</span>
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<span class="ui primary label stopwatch-time gt-my-0 gt-mx-4" data-seconds="{{.ActiveStopwatch.Seconds}}">
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{{if .ActiveStopwatch}}{{Sec2Time .ActiveStopwatch.Seconds}}{{end}}
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</span>
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</a>
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<form class="stopwatch-commit" method="POST" action="{{.ActiveStopwatch.IssueLink}}/times/stopwatch/toggle">
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{{.CsrfTokenHtml}}
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<button
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type="submit"
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class="ui button mini compact basic icon fitted tooltip"
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data-content="{{.locale.Tr "repo.issues.stop_tracking"}}"
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data-position="top right"
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>{{svg "octicon-square-fill"}}</button>
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</form>
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<form class="stopwatch-cancel" method="POST" action="{{.ActiveStopwatch.IssueLink}}/times/stopwatch/cancel">
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{{.CsrfTokenHtml}}
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<button
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type="submit"
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class="ui button mini compact basic icon fitted tooltip"
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data-content="{{.locale.Tr "repo.issues.cancel_tracking"}}"
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data-position="top right"
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>{{svg "octicon-trash"}}</button>
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</form>
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</div>
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</div>
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{{end}}
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<a href="{{AppSubUrl}}/notifications" class="item tooltip not-mobile gt-mx-0" data-content="{{.locale.Tr "notifications"}}" aria-label="{{.locale.Tr "notifications"}}">
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<span class="fitted item">
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{{svg "octicon-bell"}}
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<span class="notification_count{{if not $notificationUnreadCount}} gt-hidden{{end}}">
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{{$notificationUnreadCount}}
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</span>
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</span>
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</a>
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<div class="ui dropdown jump item tooltip gt-mx-0" data-content="{{.locale.Tr "create_new"}}">
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<span class="text">
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<span class="fitted">{{svg "octicon-plus"}}</span>
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<span class="sr-mobile-only">{{.locale.Tr "create_new"}}</span>
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<span class="fitted not-mobile">{{svg "octicon-triangle-down"}}</span>
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</span>
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<div class="menu">
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<a class="item" href="{{AppSubUrl}}/repo/create">
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<span class="fitted">{{svg "octicon-plus"}}</span> {{.locale.Tr "new_repo"}}
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</a>
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{{if not .DisableMigrations}}
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<a class="item" href="{{AppSubUrl}}/repo/migrate">
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<span class="fitted">{{svg "octicon-repo-push"}}</span> {{.locale.Tr "new_migrate"}}
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</a>
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{{end}}
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{{if .SignedUser.CanCreateOrganization}}
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<a class="item" href="{{AppSubUrl}}/org/create">
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<span class="fitted">{{svg "octicon-organization"}}</span> {{.locale.Tr "new_org"}}
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</a>
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{{end}}
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</div><!-- end content create new menu -->
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</div><!-- end dropdown menu create new -->
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<div class="ui dropdown jump item tooltip gt-mx-0" tabindex="-1" data-content="{{.locale.Tr "user_profile_and_more"}}">
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<span class="text">
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{{avatar $.Context .SignedUser 24 "tiny"}}
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<span class="sr-only">{{.locale.Tr "user_profile_and_more"}}</span>
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<span class="mobile-only">{{.SignedUser.Name}}</span>
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<span class="fitted not-mobile" tabindex="-1">{{svg "octicon-triangle-down"}}</span>
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</span>
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<div class="menu user-menu" tabindex="-1">
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<div class="ui header">
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{{.locale.Tr "signed_in_as"}} <strong>{{.SignedUser.Name}}</strong>
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</div>
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<div class="divider"></div>
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<a class="item" href="{{.SignedUser.HomeLink}}">
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{{svg "octicon-person"}}
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{{.locale.Tr "your_profile"}}<!-- Your profile -->
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</a>
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{{if not .DisableStars}}
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<a class="item" href="{{.SignedUser.HomeLink}}?tab=stars">
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{{svg "octicon-star"}}
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{{.locale.Tr "your_starred"}}
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</a>
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{{end}}
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<a class="item" href="{{AppSubUrl}}/notifications/subscriptions">
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{{svg "octicon-bell"}}
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{{.locale.Tr "notification.subscriptions"}}<!-- Subscriptions -->
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</a>
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<a class="{{if .PageIsUserSettings}}active {{end}}item" href="{{AppSubUrl}}/user/settings">
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{{svg "octicon-tools"}}
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{{.locale.Tr "your_settings"}}<!-- Your settings -->
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</a>
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<a class="item" target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io">
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{{svg "octicon-question"}}
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{{.locale.Tr "help"}}<!-- Help -->
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</a>
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{{if .IsAdmin}}
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<div class="divider"></div>
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<a class="{{if .PageIsAdmin}}active {{end}}item" href="{{AppSubUrl}}/admin">
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{{svg "octicon-server"}}
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{{.locale.Tr "admin_panel"}}<!-- Admin Panel -->
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</a>
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{{end}}
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<div class="divider"></div>
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<a class="item link-action" href data-url="{{AppSubUrl}}/user/logout" data-redirect="{{AppSubUrl}}/">
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{{svg "octicon-sign-out"}}
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{{.locale.Tr "sign_out"}}<!-- Sign Out -->
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</a>
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</div><!-- end content avatar menu -->
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</div><!-- end dropdown avatar menu -->
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</div><!-- end signed user right menu -->
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{{else}}
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<a class="item" target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io">{{.locale.Tr "help"}}</a>
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<div class="right stackable menu">
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{{if .ShowRegistrationButton}}
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<a class="item{{if .PageIsSignUp}} active{{end}}" href="{{AppSubUrl}}/user/sign_up">
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{{svg "octicon-person"}} {{.locale.Tr "register"}}
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</a>
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{{end}}
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<a class="item{{if .PageIsSignIn}} active{{end}}" rel="nofollow" href="{{AppSubUrl}}/user/login{{if not .PageIsSignIn}}?redirect_to={{.CurrentURL}}{{end}}">
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{{svg "octicon-sign-in"}} {{.locale.Tr "sign_in"}}
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</a>
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</div><!-- end anonymous right menu -->
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{{end}}
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</div>
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