Allow to sync tags from admin dashboard (#28045)

Inspired by #28043

This PR adds a option to the Admin Dashboard to sync all tags to the
database.


![grafik](https://github.com/go-gitea/gitea/assets/15185051/26ac51ef-82a4-4fd9-a6a6-5aefec612ff6)

services/release/release.go

@@ -16,6 +16,7 @@ import (
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/container"
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/storage"
@@ -370,3 +371,8 @@ func DeleteReleaseByID(ctx context.Context, repo *repo_model.Repository, rel *re
 
 	return nil
 }
+
+// Init start release service
+func Init() error {
+	return initTagSyncQueue(graceful.GetManager().ShutdownContext())
+}

services/release/tag.go

@@ -0,0 +1,61 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package release
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/graceful"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/queue"
+	repo_module "code.gitea.io/gitea/modules/repository"
+
+	"xorm.io/builder"
+)
+
+type TagSyncOptions struct {
+	RepoID int64
+}
+
+// tagSyncQueue represents a queue to handle tag sync jobs.
+var tagSyncQueue *queue.WorkerPoolQueue[*TagSyncOptions]
+
+func handlerTagSync(items ...*TagSyncOptions) []*TagSyncOptions {
+	for _, opts := range items {
+		err := repo_module.SyncRepoTags(graceful.GetManager().ShutdownContext(), opts.RepoID)
+		if err != nil {
+			log.Error("syncRepoTags [%d] failed: %v", opts.RepoID, err)
+		}
+	}
+	return nil
+}
+
+func addRepoToTagSyncQueue(repoID int64) error {
+	return tagSyncQueue.Push(&TagSyncOptions{
+		RepoID: repoID,
+	})
+}
+
+func initTagSyncQueue(ctx context.Context) error {
+	tagSyncQueue = queue.CreateUniqueQueue(ctx, "tag_sync", handlerTagSync)
+	if tagSyncQueue == nil {
+		return errors.New("unable to create tag_sync queue")
+	}
+	go graceful.GetManager().RunWithCancel(tagSyncQueue)
+
+	return nil
+}
+
+func AddAllRepoTagsToSyncQueue(ctx context.Context) error {
+	if err := db.Iterate(ctx, builder.Eq{"is_empty": false}, func(ctx context.Context, repo *repo_model.Repository) error {
+		return addRepoToTagSyncQueue(repo.ID)
+	}); err != nil {
+		return fmt.Errorf("run sync all tags failed: %v", err)
+	}
+	return nil
+}