Hide code related setting options in repository when code unit is disabled (#28631) (#28749)

Backport #28631 by @lunny

Since #20805, code can be hidden.
However, the related settings are still shown even though they don't
have any meaning then.


https://github.com/go-gitea/gitea/assets/81045/5fdee54d-ac81-418a-82f7-eadff048cedd

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

templates/repo/settings/navbar.tmpl

@@ -7,19 +7,18 @@
 		<a class="{{if .PageIsSettingsCollaboration}}active {{end}}item" href="{{.RepoLink}}/settings/collaboration">
 			{{ctx.Locale.Tr "repo.settings.collaboration"}}
 		</a>
-		{{if not .Repository.IsEmpty}}
+		{{if not DisableWebhooks}}
+			<a class="{{if .PageIsSettingsHooks}}active {{end}}item" href="{{.RepoLink}}/settings/hooks">
+				{{ctx.Locale.Tr "repo.settings.hooks"}}
+			</a>
+		{{end}}
+		{{if and (.Repository.UnitEnabled $.Context $.UnitTypeCode) (not .Repository.IsEmpty)}}
 			<a class="{{if .PageIsSettingsBranches}}active {{end}}item" href="{{.RepoLink}}/settings/branches">
 				{{ctx.Locale.Tr "repo.settings.branches"}}
 			</a>
-		{{end}}
 			<a class="{{if .PageIsSettingsTags}}active {{end}}item" href="{{.RepoLink}}/settings/tags">
 				{{ctx.Locale.Tr "repo.settings.tags"}}
 			</a>
-		{{if not DisableWebhooks}}
-			<a class="{{if .PageIsSettingsHooks}}active {{end}}item" href="{{.RepoLink}}/settings/hooks">
-				{{ctx.Locale.Tr "repo.settings.hooks"}}
-			</a>
-		{{end}}
 			{{if .SignedUser.CanEditGitHook}}
 				<a class="{{if .PageIsSettingsGitHooks}}active {{end}}item" href="{{.RepoLink}}/settings/hooks/git">
 					{{ctx.Locale.Tr "repo.settings.githooks"}}
@@ -33,6 +32,7 @@
 					{{ctx.Locale.Tr "repo.settings.lfs"}}
 				</a>
 			{{end}}
+		{{end}}
 		{{if and .EnableActions (not .UnitActionsGlobalDisabled) (.Permission.CanRead $.UnitTypeActions)}}
 		<details class="item toggleable-item" {{if or .PageIsSharedSettingsRunners .PageIsSharedSettingsSecrets .PageIsSharedSettingsVariables}}open{{end}}>
 			<summary>{{ctx.Locale.Tr "actions.actions"}}</summary>

templates/repo/settings/options.tmpl

@@ -66,7 +66,7 @@
 		{{/* These variables exist to make the logic in the Settings window easier to comprehend and are not used later on. */}}
 		{{$newMirrorsPartiallyEnabled := or (not .DisableNewPullMirrors) (not .DisableNewPushMirrors)}}
 		{{/* .Repository.IsMirror is not always reliable if the repository is not actively acting as a mirror because of errors. */}}
-		{{$showMirrorSettings := or $newMirrorsPartiallyEnabled .Repository.IsMirror .PullMirror .PushMirrors}}
+		{{$showMirrorSettings := and (.Repository.UnitEnabled $.Context $.UnitTypeCode) (or $newMirrorsPartiallyEnabled .Repository.IsMirror .PullMirror .PushMirrors)}}
 		{{$newMirrorsEntirelyEnabled := and (not .DisableNewPullMirrors) (not .DisableNewPushMirrors)}}
 		{{$onlyNewPushMirrorsEnabled := and (not .DisableNewPushMirrors) .DisableNewPullMirrors}}
 		{{$onlyNewPullMirrorsEnabled := and .DisableNewPushMirrors (not .DisableNewPullMirrors)}}