Hide 'Mirror Settings' when unneeded, improve hints (#24433)

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Giteabot <teabot@gitea.io>

3 files changed, 47 insertions, 6 deletions

diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 16dbb0948d..ed7cbef9fe 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -1913,7 +1913,16 @@ settings.hooks = Webhooks
 settings.githooks = Git Hooks
 settings.basic_settings = Basic Settings
 settings.mirror_settings = Mirror Settings
-settings.mirror_settings.docs = Set up your project to automatically push and/or pull changes to/from another repository. Branches, tags, and commits will be synced automatically. <a target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io/en-us/repo-mirror/">How do I mirror repositories?</a>
+settings.mirror_settings.docs = Set up your repository to automatically synchronize commits, tags and branches with another repository.
+settings.mirror_settings.docs.disabled_pull_mirror.instructions = Set up your project to automatically push commits, tags and branches to another repository. Pull mirrors have been disabled by your site administrator.
+settings.mirror_settings.docs.disabled_push_mirror.instructions = Set up your project to automatically pull commits, tags and branches from another repository.
+settings.mirror_settings.docs.disabled_push_mirror.pull_mirror_warning = Right now, this can only be done in the "New Migration" menu. For more information, please consult:
+settings.mirror_settings.docs.disabled_push_mirror.info = Push mirrors have been disabled by your site administrator.
+settings.mirror_settings.docs.no_new_mirrors = Your repository is mirroring changes to or from another repository. Please keep in mind that you can't create any new mirrors at this time.
+settings.mirror_settings.docs.can_still_use = Although you can't modify existing mirrors or create new ones, you may still use your existing mirror.
+settings.mirror_settings.docs.pull_mirror_instructions = To set up a pull mirror, please consult:
+settings.mirror_settings.docs.doc_link_title = How do I mirror repositories?
+settings.mirror_settings.docs.pulling_remote_title = Pulling from a remote repository
 settings.mirror_settings.mirrored_repository = Mirrored repository
 settings.mirror_settings.direction = Direction
 settings.mirror_settings.direction.pull = Pull
diff --git a/routers/web/repo/setting.go b/routers/web/repo/setting.go
index 578b70194e..4481ff4f04 100644
--- a/routers/web/repo/setting.go
+++ b/routers/web/repo/setting.go
@@ -64,6 +64,7 @@ func SettingsCtxData(ctx *context.Context) {
 	ctx.Data["PageIsSettingsOptions"] = true
 	ctx.Data["ForcePrivate"] = setting.Repository.ForcePrivate
 	ctx.Data["MirrorsEnabled"] = setting.Mirror.Enabled
+	ctx.Data["DisableNewPullMirrors"] = setting.Mirror.DisableNewPull
 	ctx.Data["DisableNewPushMirrors"] = setting.Mirror.DisableNewPush
 	ctx.Data["DefaultMirrorInterval"] = setting.Mirror.DefaultInterval
 	ctx.Data["MinimumMirrorInterval"] = setting.Mirror.MinInterval
@@ -108,6 +109,7 @@ func SettingsPost(ctx *context.Context) {
 
 	ctx.Data["ForcePrivate"] = setting.Repository.ForcePrivate
 	ctx.Data["MirrorsEnabled"] = setting.Mirror.Enabled
+	ctx.Data["DisableNewPullMirrors"] = setting.Mirror.DisableNewPull
 	ctx.Data["DisableNewPushMirrors"] = setting.Mirror.DisableNewPush
 	ctx.Data["DefaultMirrorInterval"] = setting.Mirror.DefaultInterval
 	ctx.Data["MinimumMirrorInterval"] = setting.Mirror.MinInterval
diff --git a/templates/repo/settings/options.tmpl b/templates/repo/settings/options.tmpl
index 83a6bc4ba1..18a5b04463 100644
--- a/templates/repo/settings/options.tmpl
+++ b/templates/repo/settings/options.tmpl
@@ -67,14 +67,44 @@
 
 		</div>
 
-		{{if .MirrorsEnabled}}
+
+		{{/* 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 $newMirrorsPartiallyEnabled .Repository.IsMirror .PullMirror .PushMirrors}}
+		{{$newMirrorsEntirelyEnabled := and (not .DisableNewPullMirrors) (not .DisableNewPushMirrors)}}
+		{{$onlyNewPushMirrorsEnabled := and (not .DisableNewPushMirrors) .DisableNewPullMirrors}}
+		{{$onlyNewPullMirrorsEnabled := and .DisableNewPushMirrors (not .DisableNewPullMirrors)}}
+		{{$existingPushMirror := or .Repository.IsMirror .PushMirrors}}
+		{{$modifyBrokenPullMirror := and .Repository.IsMirror (not .PullMirror)}}
+		{{$isWorkingPullMirror := .PullMirror}}
+
+		{{if $showMirrorSettings}}
 			<h4 class="ui top attached header">
 				{{.locale.Tr "repo.settings.mirror_settings"}}
 			</h4>
 			<div class="ui attached segment">
-				{{$.locale.Tr "repo.settings.mirror_settings.docs" | Safe}}
+				{{if $newMirrorsEntirelyEnabled}}
+					{{$.locale.Tr "repo.settings.mirror_settings.docs"}}
+					<a target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io/en-us/usage/repo-mirror/#pushing-to<ing-to-a-remote-repository">{{$.locale.Tr "repo.settings.mirror_settings.docs.doc_link_title"}}</a><br><br>
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.pull_mirror_instructions"}}
+					<a target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io/en-us/usage/repo-mirror/#pulling-from-a-remote-repository">{{$.locale.Tr "repo.settings.mirror_settings.docs.doc_link_title"}}</a><br>
+				{{else if $onlyNewPushMirrorsEnabled}}
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.disabled_pull_mirror.instructions"}}
+					<a target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io/en-us/usage/repo-mirror/#pulling-from-a-remote-repository">{{$.locale.Tr "repo.settings.mirror_settings.docs.doc_link_title"}}</a><br>
+				{{else if $onlyNewPullMirrorsEnabled}}
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.disabled_push_mirror.instructions"}}
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.disabled_push_mirror.pull_mirror_warning"}}
+					<a target="_blank" rel="noopener noreferrer" href="https://docs.gitea.io/en-us/usage/repo-mirror/#pulling-from-a-remote-repository">{{$.locale.Tr "repo.settings.mirror_settings.docs.doc_link_title"}}</a><br><br>
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.disabled_push_mirror.info"}}
+					{{if $existingPushMirror}}
+						{{$.locale.Tr "repo.settings.mirror_settings.docs.can_still_use"}}
+					{{end}}
+				{{else}}
+					{{$.locale.Tr "repo.settings.mirror_settings.docs.no_new_mirrors"}} {{$.locale.Tr "repo.settings.mirror_settings.docs.can_still_use"}}<br>
+				{{end}}
 				<table class="ui table">
-					{{if or .Repository.IsMirror .PushMirrors}}
+					{{if $existingPushMirror}}
 					<thead>
 						<tr>
 							<th style="width:40%">{{$.locale.Tr "repo.settings.mirror_settings.mirrored_repository"}}</th>
@@ -84,7 +114,7 @@
 						</tr>
 					</thead>
 					{{end}}
-					{{if and .Repository.IsMirror (not .PullMirror)}}
+					{{if $modifyBrokenPullMirror}}
 						{{/* even if a repo is a pull mirror (IsMirror=true), the PullMirror might still be nil if the mirror migration is broken */}}
 						<tbody>
 							<tr>
@@ -93,7 +123,7 @@
 								</td>
 							</tr>
 						</tbody>
-					{{else if .PullMirror}}
+					{{else if $isWorkingPullMirror}}
 					<tbody>
 						<tr>
 							<td>{{(MirrorRemoteAddress $.Context .Repository .PullMirror.GetRemoteName false).Address}}</td>