add group breadcrumbs to repo page header

services/context/repo.go

@@ -5,6 +5,7 @@
 package context
 
 import (
+	group_model "code.gitea.io/gitea/models/group"
 	"context"
 	"errors"
 	"fmt"
@@ -609,6 +610,15 @@ func RepoAssignment(ctx *Context) {
 	ctx.Data["Title"] = repo.Owner.Name + "/" + repo.Name
 	ctx.Data["PageTitleCommon"] = repo.Name + " - " + setting.AppName
 	ctx.Data["Repository"] = repo
+	if repo.GroupID > 0 {
+		if ctx.Data["Breadcrumbs"], err = group_model.GetParentGroupChain(ctx, repo.GroupID); err != nil {
+			ctx.ServerError("GetParentGroupChain", err)
+			return
+		}
+	} else {
+		ctx.Data["Breadcrumbs"] = nil
+	}
+
 	ctx.Data["Owner"] = ctx.Repo.Repository.Owner
 	ctx.Data["CanWriteCode"] = ctx.Repo.CanWrite(unit_model.TypeCode)
 	ctx.Data["CanWriteIssues"] = ctx.Repo.CanWrite(unit_model.TypeIssues)

templates/repo/header.tmpl

@@ -8,7 +8,12 @@
 				</div>
 				<div class="flex-item-main">
 					<div class="flex-item-title tw-text-18">
-						<a class="muted tw-font-normal" href="{{.Owner.HomeLink}}">{{.Owner.Name}}</a>/<a class="muted" href="{{$.RepoLink}}">{{.Name}}</a>
+						<a class="muted tw-font-normal" href="{{.Owner.HomeLink}}">{{.Owner.Name}}</a>
+						{{- range $.Breadcrumbs -}}
+						/<a class="muted{{if eq .ID $.Group.ID}} tw-font-bold active{{else}} tw-font-normal{{end}}"
+								href="{{.GroupLink}}">{{.Name}}</a>
+						{{- end -}}
+						/<a class="muted" href="{{$.RepoLink}}">{{.Name}}</a>
 					</div>
 				</div>
 				<div class="flex-item-trailing">