Add migrate from OneDev (#16356)

* Use context to simplify logic.

* Added migration from OneDev.
This PR adds [OneDev](https://code.onedev.io/) as migration source.

Supported:
- [x] Milestones
- [x] Issues
- [x] Pull Requests
- [x] Comments
- [x] Reviews
- [x] Labels

1 files changed, 2 insertions, 2 deletions

diff --git a/modules/migrations/base/null_downloader.go b/modules/migrations/base/null_downloader.go
index 53a536709d..c64d0e2633 100644
--- a/modules/migrations/base/null_downloader.go
+++ b/modules/migrations/base/null_downloader.go
@@ -50,7 +50,7 @@ func (n NullDownloader) GetIssues(page, perPage int) ([]*Issue, bool, error) {
 	return nil, false, &ErrNotSupported{Entity: "Issues"}
 }
 
-// GetComments returns comments according issueNumber
+// GetComments returns comments according the options
 func (n NullDownloader) GetComments(GetCommentOptions) ([]*Comment, bool, error) {
 	return nil, false, &ErrNotSupported{Entity: "Comments"}
 }
@@ -61,7 +61,7 @@ func (n NullDownloader) GetPullRequests(page, perPage int) ([]*PullRequest, bool
 }
 
 // GetReviews returns pull requests review
-func (n NullDownloader) GetReviews(pullRequestNumber int64) ([]*Review, error) {
+func (n NullDownloader) GetReviews(pullRequestContext IssueContext) ([]*Review, error) {
 	return nil, &ErrNotSupported{Entity: "Reviews"}
 }