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
(714ab71ddc4260937b1480519d453d2dc4e77dd6)

* 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)

1 files changed, 7 insertions, 6 deletions

diff --git a/docs/content/doc/advanced/migrations.en-us.md b/docs/content/doc/advanced/migrations.en-us.md
index 2097dbbf66..746c68f426 100644
--- a/docs/content/doc/advanced/migrations.en-us.md
+++ b/docs/content/doc/advanced/migrations.en-us.md
@@ -17,10 +17,10 @@ menu:
 
 The new migration features were introduced in Gitea 1.9.0. It defines two interfaces to support migrating
 repositories data from other git host platforms to gitea or, in the future migrating gitea data to other
-git host platforms. Currently, only the migrations from github via APIv3 to Gitea is implemented.
+git host platforms. Currently, migrations from Github, Gitlab and Gitea to Gitea is implemented.
 
 First of all, Gitea defines some standard objects in packages `modules/migrations/base`. They are
- `Repository`, `Milestone`, `Release`, `Label`, `Issue`, `Comment`, `PullRequest`, `Reaction`, `Review`, `ReviewComment`.
+ `Repository`, `Milestone`, `Release`, `ReleaseAsset`, `Label`, `Issue`, `Comment`, `PullRequest`, `Reaction`, `Review`, `ReviewComment`.
 
 ## Downloader Interfaces
 
@@ -33,6 +33,7 @@ create a Downloader.
 
 ```Go
 type Downloader interface {
+	GetAsset(relTag string, relID, id int64) (io.ReadCloser, error)
 	SetContext(context.Context)
 	GetRepoInfo() (*Repository, error)
 	GetTopics() ([]string, error)
@@ -41,15 +42,15 @@ type Downloader interface {
 	GetLabels() ([]*Label, error)
 	GetIssues(page, perPage int) ([]*Issue, bool, error)
 	GetComments(issueNumber int64) ([]*Comment, error)
-	GetPullRequests(page, perPage int) ([]*PullRequest, error)
+	GetPullRequests(page, perPage int) ([]*PullRequest, bool, error)
 	GetReviews(pullRequestNumber int64) ([]*Review, error)
 }
 ```
 
 ```Go
 type DownloaderFactory interface {
-	Match(opts MigrateOptions) (bool, error)
-	New(opts MigrateOptions) (Downloader, error)
+	New(ctx context.Context, opts MigrateOptions) (Downloader, error)
+	GitServiceType() structs.GitServiceType
 }
 ```
 
@@ -66,7 +67,7 @@ type Uploader interface {
 	CreateRepo(repo *Repository, opts MigrateOptions) error
 	CreateTopics(topic ...string) error
 	CreateMilestones(milestones ...*Milestone) error
-	CreateReleases(releases ...*Release) error
+	CreateReleases(downloader Downloader, releases ...*Release) error
 	SyncTags() error
 	CreateLabels(labels ...*Label) error
 	CreateIssues(issues ...*Issue) error