Gitea 2 Gitea migration (#12657)

* first draft

* update gitea sdk to 9e280adb4da

* adapt feat of updated sdk

* releases now works

* break the Reactions loop

* use convertGiteaLabel

* fix endless loop because paggination is not supported there !!!

* rename gitea local uploader files

* pagination can bite you in the ass

* Version Checks

* lint

* docs

* rename gitea sdk import to miss future conficts

* go-swagger: dont scan the sdk structs

* make sure gitea can shutdown gracefully

* make GetPullRequests and GetIssues similar

* rm useles

* Add Test: started ...

* ... add tests ...

* Add tests and Fixing things

* Workaround missing SHA

* Adapt: Ensure that all migration requests are cancellable
(714ab71ddc)

* LINT: fix misspells in test set

* adapt ListMergeRequestAwardEmoji

* update sdk

* Return error when creating giteadownloader failed

* update sdk

* adapt new sdk

* adopt new features

* check version before err

* adapt: 'migrate service type switch page'

* optimize

* Fix DefaultBranch

* impruve

* handle subPath

* fix test

* Fix ReviewCommentPosition

* test GetReviews

* add DefaultBranch int test set

* rm unused

* Update SDK to v0.13.0

* addopt sdk changes

* found better link

* format template

* Update Docs

* Update Gitea SDK (v0.13.1)

vendor/code.gitea.io/sdk/gitea/list_options.go

@@ -0,0 +1,37 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package gitea
+
+import (
+	"fmt"
+	"net/url"
+)
+
+const defaultPageSize = 10
+const maxPageSize = 50
+
+// ListOptions options for using Gitea's API pagination
+type ListOptions struct {
+	Page     int
+	PageSize int
+}
+
+func (o ListOptions) getURLQuery() url.Values {
+	query := make(url.Values)
+	query.Add("page", fmt.Sprintf("%d", o.Page))
+	query.Add("limit", fmt.Sprintf("%d", o.PageSize))
+
+	return query
+}
+
+func (o ListOptions) setDefaults() {
+	if o.Page < 1 {
+		o.Page = 1
+	}
+
+	if o.PageSize < 0 || o.PageSize > maxPageSize {
+		o.PageSize = defaultPageSize
+	}
+}