show apapiurl in repo settings

modules/context/repo.go

@@ -575,6 +575,7 @@ func RepoAssignment(ctx *Context) context.CancelFunc {
 
 	ctx.Data["Title"] = owner.Name + "/" + repo.Name
 	ctx.Data["Repository"] = repo
+	ctx.Data["RepositoryAPAPIURL"] = repo.APAPIURL()
 	ctx.Data["Owner"] = ctx.Repo.Repository.Owner
 	ctx.Data["IsRepositoryOwner"] = ctx.Repo.IsOwner()
 	ctx.Data["IsRepositoryAdmin"] = ctx.Repo.IsAdmin()

options/locale/locale_de-DE.ini

@@ -1993,6 +1993,7 @@ settings.hooks=Webhooks
 settings.githooks=Git-Hooks
 settings.basic_settings=Grundeinstellungen
 settings.federation_settings=Föderationseinstellungen
+settings.federation_apapiurl=Föderierungs-URL dieses Repositories. Kopiere sie und füge sie in die Föderationseinstellungen eines anderen Repository ein als dem Repository folgendes Repository.
 settings.federation_following_repos=URLs der Repos, die diesem Repo folgen. Getrennt mittels ";", keine Leerzeichen.
 settings.federation_not_enabled=Föderierung ist auf deiner Instanz nicht aktiviert.
 settings.mirror_settings=Mirror-Einstellungen

options/locale/locale_en-US.ini

@@ -2045,6 +2045,7 @@ settings.hooks = Webhooks
 settings.githooks = Git Hooks
 settings.basic_settings = Basic Settings
 settings.federation_settings=Federation Settings
+settings.federation_apapiurl=Federation URL of this repository. Copy and paste this into Federation Settings of another repository as an URL of a Following Repository.
 settings.federation_following_repos=URLs of Following Repositories. Separated by ";", no whitespace.
 settings.federation_not_enabled=Federation is not enabled on your instance.
 settings.mirror_settings = Mirror Settings

templates/repo/settings/options.tmpl

@@ -72,6 +72,9 @@
 				{{.CsrfTokenHtml}}
 				<input type="hidden" name="action" value="federation">
 				<div class="field {{if .Err_FollowingRepos}}error{{end}}">
+					<p>{{ctx.Locale.Tr "repo.settings.federation_apapiurl"}}</p>
+					<p><b>{{.RepositoryAPAPIURL}}<b></p>
+					<div class="divider"></div>
 					<label for="following_repos">{{ctx.Locale.Tr "repo.settings.federation_following_repos"}}</label>
 					<input id="following_repos" name="federation_repos" value="{{.FollowingRepos}}">
 				</div>