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/repo_migrate.go

@@ -0,0 +1,115 @@
+// 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 (
+	"bytes"
+	"encoding/json"
+	"fmt"
+)
+
+// GitServiceType represents a git service
+type GitServiceType string
+
+const (
+	// GitServicePlain represents a plain git service
+	GitServicePlain GitServiceType = "git"
+	//GitServiceGithub represents github.com
+	GitServiceGithub GitServiceType = "github"
+	// GitServiceGitlab represents a gitlab service
+	GitServiceGitlab GitServiceType = "gitlab"
+
+	// Not supported jet
+	// // GitServiceGitea represents a gitea service
+	// GitServiceGitea GitServiceType = "gitea"
+	// // GitServiceGogs represents a gogs service
+	// GitServiceGogs GitServiceType = "gogs"
+)
+
+// MigrateRepoOption options for migrating a repository from an external service
+type MigrateRepoOption struct {
+	RepoName  string `json:"repo_name"`
+	RepoOwner string `json:"repo_owner"`
+	// deprecated use RepoOwner
+	RepoOwnerID  int64          `json:"uid"`
+	CloneAddr    string         `json:"clone_addr"`
+	Service      GitServiceType `json:"service"`
+	AuthUsername string         `json:"auth_username"`
+	AuthPassword string         `json:"auth_password"`
+	AuthToken    string         `json:"auth_token"`
+	Mirror       bool           `json:"mirror"`
+	Private      bool           `json:"private"`
+	Description  string         `json:"description"`
+	Wiki         bool           `json:"wiki"`
+	Milestones   bool           `json:"milestones"`
+	Labels       bool           `json:"labels"`
+	Issues       bool           `json:"issues"`
+	PullRequests bool           `json:"pull_requests"`
+	Releases     bool           `json:"releases"`
+}
+
+// Validate the MigrateRepoOption struct
+func (opt *MigrateRepoOption) Validate() error {
+	// check user options
+	if len(opt.CloneAddr) == 0 {
+		return fmt.Errorf("CloneAddr required")
+	}
+	if len(opt.RepoName) == 0 {
+		return fmt.Errorf("RepoName required")
+	} else if len(opt.RepoName) > 100 {
+		return fmt.Errorf("RepoName to long")
+	}
+	if len(opt.Description) > 255 {
+		return fmt.Errorf("Description to long")
+	}
+	switch opt.Service {
+	case GitServiceGithub:
+		if len(opt.AuthToken) == 0 {
+			return fmt.Errorf("github require token authentication")
+		}
+	}
+	return nil
+}
+
+// MigrateRepo migrates a repository from other Git hosting sources for the authenticated user.
+//
+// To migrate a repository for a organization, the authenticated user must be a
+// owner of the specified organization.
+func (c *Client) MigrateRepo(opt MigrateRepoOption) (*Repository, *Response, error) {
+	if err := opt.Validate(); err != nil {
+		return nil, nil, err
+	}
+
+	if err := c.CheckServerVersionConstraint(">=1.13.0"); err != nil {
+		if len(opt.AuthToken) != 0 {
+			// gitea <= 1.12 dont understand AuthToken
+			opt.AuthUsername = opt.AuthToken
+			opt.AuthPassword, opt.AuthToken = "", ""
+		}
+		if len(opt.RepoOwner) != 0 {
+			// gitea <= 1.12 dont understand RepoOwner
+			u, _, err := c.GetUserInfo(opt.RepoOwner)
+			if err != nil {
+				return nil, nil, err
+			}
+			opt.RepoOwnerID = u.ID
+		} else if opt.RepoOwnerID == 0 {
+			// gitea <= 1.12 require RepoOwnerID
+			u, _, err := c.GetMyUserInfo()
+			if err != nil {
+				return nil, nil, err
+			}
+			opt.RepoOwnerID = u.ID
+		}
+	}
+
+	body, err := json.Marshal(&opt)
+	if err != nil {
+		return nil, nil, err
+	}
+	repo := new(Repository)
+	resp, err := c.getParsedResponse("POST", "/repos/migrate", jsonHeader, bytes.NewReader(body), repo)
+	return repo, resp, err
+}