// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package migration
import (
"context"
"net/url"
)
// NullDownloader implements a blank downloader
type NullDownloader struct{}
var _ Downloader = &NullDownloader{}
// SetContext set context
func (n NullDownloader) SetContext(_ context.Context) {}
// GetRepoInfo returns a repository information
func (n NullDownloader) GetRepoInfo() (*Repository, error) {
return nil, ErrNotSupported{Entity: "RepoInfo"}
}
// GetTopics return repository topics
func (n NullDownloader) GetTopics() ([]string, error) {
return nil, ErrNotSupported{Entity: "Topics"}
// GetMilestones returns milestones
func (n NullDownloader) GetMilestones() ([]*Milestone, error) {
return nil, ErrNotSupported{Entity: "Milestones"}
// GetReleases returns releases
func (n NullDownloader) GetReleases() ([]*Release, error) {
return nil, ErrNotSupported{Entity: "Releases"}
// GetLabels returns labels
func (n NullDownloader) GetLabels() ([]*Label, error) {
return nil, ErrNotSupported{Entity: "Labels"}
// GetIssues returns issues according start and limit
func (n NullDownloader) GetIssues(page, perPage int) ([]*Issue, bool, error) {
return nil, false, ErrNotSupported{Entity: "Issues"}
// GetComments returns comments of an issue or PR
func (n NullDownloader) GetComments(commentable Commentable) ([]*Comment, bool, error) {
return nil, false, ErrNotSupported{Entity: "Comments"}
// GetAllComments returns paginated comments
func (n NullDownloader) GetAllComments(page, perPage int) ([]*Comment, bool, error) {
return nil, false, ErrNotSupported{Entity: "AllComments"}
// GetPullRequests returns pull requests according page and perPage
func (n NullDownloader) GetPullRequests(page, perPage int) ([]*PullRequest, bool, error) {
return nil, false, ErrNotSupported{Entity: "PullRequests"}
// GetReviews returns pull requests review
func (n NullDownloader) GetReviews(reviewable Reviewable) ([]*Review, error) {
return nil, ErrNotSupported{Entity: "Reviews"}
// FormatCloneURL add authentication into remote URLs
func (n NullDownloader) FormatCloneURL(opts MigrateOptions, remoteAddr string) (string, error) {
if len(opts.AuthToken) > 0 || len(opts.AuthUsername) > 0 {
u, err := url.Parse(remoteAddr)
if err != nil {
return "", err
u.User = url.UserPassword(opts.AuthUsername, opts.AuthPassword)
if len(opts.AuthToken) > 0 {
u.User = url.UserPassword("oauth2", opts.AuthToken)
return u.String(), nil
return remoteAddr, nil
// SupportGetRepoComments return true if it supports get repo comments
func (n NullDownloader) SupportGetRepoComments() bool {
return false