fix lint

modules/migrations/base/error.go

@@ -4,23 +4,17 @@
 
 package base
 
-import "errors"
-
-var (
-	// ErrRepoNotCreated returns the error that repository not created
-	ErrRepoNotCreated = errors.New("repository is not created yet")
-)
-
 // ErrNotSupported represents status if a downloader do not supported something.
 type ErrNotSupported struct {
 }
 
-// ErrNotSupported checks if an error is an ErrNotSupported
+// IsErrNotSupported checks if an error is an ErrNotSupported
 func IsErrNotSupported(err error) bool {
 	_, ok := err.(ErrNotSupported)
 	return ok
 }
 
+// Error return error message
 func (err ErrNotSupported) Error() string {
 	return "not supported"
 }

modules/migrations/base/null_downloader.go

@@ -9,54 +9,63 @@ import (
 	"net/url"
 )
 
-// NullNotifier implements a blank downloader
+// NullDownloader implements a blank downloader
 type NullDownloader struct {
 }
 
 var (
 	_ Downloader = &NullDownloader{}
 )
 
-func (n NullDownloader) SetContext(_ context.Context) {
-	return
-}
+// SetContext set context
+func (n NullDownloader) SetContext(_ context.Context) {}
 
+// GetRepoInfo returns a repository information
 func (n NullDownloader) GetRepoInfo() (*Repository, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetTopics return gitlab topics
 func (n NullDownloader) GetTopics() ([]string, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetMilestones returns milestones
 func (n NullDownloader) GetMilestones() ([]*Milestone, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetReleases returns releases
 func (n NullDownloader) GetReleases() ([]*Release, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetLabels returns labels
 func (n NullDownloader) GetLabels() ([]*Label, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetIssues returns issues according start and limit
 func (n NullDownloader) GetIssues(page, perPage int) ([]*Issue, bool, error) {
 	return nil, false, &ErrNotSupported{}
 }
 
+// GetComments returns comments according issueNumber
 func (n NullDownloader) GetComments(issueNumber int64) ([]*Comment, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// GetPullRequests returns pull requests according page and perPage
 func (n NullDownloader) GetPullRequests(page, perPage int) ([]*PullRequest, bool, error) {
 	return nil, false, &ErrNotSupported{}
 }
 
+// GetReviews returns pull requests review
 func (n NullDownloader) GetReviews(pullRequestNumber int64) ([]*Review, error) {
 	return nil, &ErrNotSupported{}
 }
 
+// FormatGitURL return func to add authentification into remote URLs
 func (n NullDownloader) FormatGitURL() func(opts MigrateOptions, remoteAddr string) (string, error) {
 	return func(opts MigrateOptions, remoteAddr string) (string, error) {
 		if len(opts.AuthToken) > 0 || len(opts.AuthUsername) > 0 {

modules/migrations/gogs.go

@@ -67,6 +67,7 @@ type GogsDownloader struct {
 	password  string
 }
 
+// SetContext set context
 func (g *GogsDownloader) SetContext(ctx context.Context) {
 	g.ctx = ctx
 }
@@ -206,7 +207,8 @@ func (g *GogsDownloader) GetComments(issueNumber int64) ([]*base.Comment, error)
 	return allComments, nil
 }
 
-func (n GogsDownloader) FormatGitURL() func(opts MigrateOptions, remoteAddr string) (string, error) {
+// FormatGitURL return func to add authentification into remote URLs
+func (g GogsDownloader) FormatGitURL() func(opts MigrateOptions, remoteAddr string) (string, error) {
 	return func(opts MigrateOptions, remoteAddr string) (string, error) {
 		if len(opts.AuthToken) > 0 || len(opts.AuthUsername) > 0 {
 			u, err := url.Parse(remoteAddr)