preserve users if restoring a repository on the same Gitea instance (#18604) When calling DumpRepository and RestoreRepository on the same Gitea instance, the users are preserved: all labels, issues etc. belong to the external user who is, in this particular case, the local user. Dead code verifying g.gitServiceType.Name() == "" (i.e. plain git) is removed. The function is never called because the plain git downloader does not migrate anything that is associated to a user, by definition. Errors returned by GetUserIDByExternalUserID are no longer ignored. The userMap is used when the external user is not kown, which is the most common case. It was only used when the external user exists which happens less often and, as a result, every occurence of an unknown external user required a SQL query. Signed-off-by: Loïc Dachary <loic@dachary.org> Co-authored-by: Loïc Dachary <loic@dachary.org> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

Changes

4 changed files (+125/-26)

• integrations/dump_restore_test.go
  • @@ -129,6 +129,7 @@ func TestDumpRestore(t *testing.T) {
    assert.EqualValues(t, before[i].Created, after[i].Created) assert.EqualValues(t, before[i].Updated, after[i].Updated) assert.EqualValues(t, before[i].Labels, after[i].Labels) + assert.EqualValues(t, before[i].Reactions, after[i].Reactions) } } })
• models/user/user.go
  • @@ -1025,6 +1025,19 @@ func GetUserNamesByIDs(ids []int64) ([]string, error) {
    return unames, err } + // GetUserNameByID returns username for the id + func GetUserNameByID(ctx context.Context, id int64) (string, error) { + var name string + has, err := db.GetEngine(db.DefaultContext).Table("user").Where("id = ?", id).Cols("name").Get(&name) + if err != nil { + return "", err + } + if has { + return name, nil + } + return "", nil + } + // GetUserIDsByNames returns a slice of ids corresponds to names. func GetUserIDsByNames(names []string, ignoreNonExistent bool) ([]int64, error) { ids := make([]int64, 0, len(names))
• services/migrations/gitea_uploader.go
  • @@ -46,6 +46,7 @@ type GiteaLocalUploader struct {
    issues map[int64]*models.Issue gitRepo *git.Repository prHeadCache map[string]struct{} + sameApp bool userMap map[int64]int64 // external user id mapping to user id prCache map[int64]*models.PullRequest gitServiceType structs.GitServiceType
  • @@ -128,6 +129,7 @@ func (g *GiteaLocalUploader) CreateRepo(repo *base.Repository, opts base.Migrate
    MirrorInterval: opts.MirrorInterval, }, NewMigrationHTTPTransport()) + g.sameApp = strings.HasPrefix(repo.OriginalURL, setting.AppURL) g.repo = r if err != nil { return err
  • @@ -256,7 +258,7 @@ func (g *GiteaLocalUploader) CreateReleases(releases ...*base.Release) error {
    CreatedUnix: timeutil.TimeStamp(release.Created.Unix()), } - if err := g.remapExternalUser(release, &rel); err != nil { + if err := g.remapUser(release, &rel); err != nil { return err }
  • @@ -373,7 +375,7 @@ func (g *GiteaLocalUploader) CreateIssues(issues ...*base.Issue) error {
    UpdatedUnix: timeutil.TimeStamp(issue.Updated.Unix()), } - if err := g.remapExternalUser(issue, &is); err != nil { + if err := g.remapUser(issue, &is); err != nil { return err }
  • @@ -386,7 +388,7 @@ func (g *GiteaLocalUploader) CreateIssues(issues ...*base.Issue) error {
    Type: reaction.Content, CreatedUnix: timeutil.TimeStampNow(), } - if err := g.remapExternalUser(reaction, &res); err != nil { + if err := g.remapUser(reaction, &res); err != nil { return err } is.Reactions = append(is.Reactions, &res)
  • @@ -437,7 +439,7 @@ func (g *GiteaLocalUploader) CreateComments(comments ...*base.Comment) error {
    UpdatedUnix: timeutil.TimeStamp(comment.Updated.Unix()), } - if err := g.remapExternalUser(comment, &cm); err != nil { + if err := g.remapUser(comment, &cm); err != nil { return err }
  • @@ -447,7 +449,7 @@ func (g *GiteaLocalUploader) CreateComments(comments ...*base.Comment) error {
    Type: reaction.Content, CreatedUnix: timeutil.TimeStampNow(), } - if err := g.remapExternalUser(reaction, &res); err != nil { + if err := g.remapUser(reaction, &res); err != nil { return err } cm.Reactions = append(cm.Reactions, &res)
  • @@ -471,7 +473,7 @@ func (g *GiteaLocalUploader) CreatePullRequests(prs ...*base.PullRequest) error
    return err } - if err := g.remapExternalUser(pr, gpr.Issue); err != nil { + if err := g.remapUser(pr, gpr.Issue); err != nil { return err }
  • @@ -626,7 +628,7 @@ func (g *GiteaLocalUploader) newPullRequest(pr *base.PullRequest) (*models.PullR
    UpdatedUnix: timeutil.TimeStamp(pr.Updated.Unix()), } - if err := g.remapExternalUser(pr, &issue); err != nil { + if err := g.remapUser(pr, &issue); err != nil { return nil, err }
  • @@ -636,7 +638,7 @@ func (g *GiteaLocalUploader) newPullRequest(pr *base.PullRequest) (*models.PullR
    Type: reaction.Content, CreatedUnix: timeutil.TimeStampNow(), } - if err := g.remapExternalUser(reaction, &res); err != nil { + if err := g.remapUser(reaction, &res); err != nil { return nil, err } issue.Reactions = append(issue.Reactions, &res)
  • @@ -710,7 +712,7 @@ func (g *GiteaLocalUploader) CreateReviews(reviews ...*base.Review) error {
    UpdatedUnix: timeutil.TimeStamp(review.CreatedAt.Unix()), } - if err := g.remapExternalUser(review, &cm); err != nil { + if err := g.remapUser(review, &cm); err != nil { return err }
  • @@ -773,7 +775,7 @@ func (g *GiteaLocalUploader) CreateReviews(reviews ...*base.Review) error {
    UpdatedUnix: timeutil.TimeStamp(comment.UpdatedAt.Unix()), } - if err := g.remapExternalUser(review, &c); err != nil { + if err := g.remapUser(review, &c); err != nil { return err }
  • @@ -816,23 +818,52 @@ func (g *GiteaLocalUploader) Finish() error {
    return repo_model.UpdateRepositoryCols(g.repo, "status") } - func (g *GiteaLocalUploader) remapExternalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (err error) { + func (g *GiteaLocalUploader) remapUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) error { + var userid int64 + var err error + if g.sameApp { + userid, err = g.remapLocalUser(source, target) + } else { + userid, err = g.remapExternalUser(source, target) + } + + if err != nil { + return err + } + + if userid > 0 { + return target.RemapExternalUser("", 0, userid) + } + return target.RemapExternalUser(source.GetExternalName(), source.GetExternalID(), g.doer.ID) + } + + func (g *GiteaLocalUploader) remapLocalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (int64, error) { userid, ok := g.userMap[source.GetExternalID()] - tp := g.gitServiceType.Name() - if !ok && tp != "" { - userid, err = user_model.GetUserIDByExternalUserID(tp, fmt.Sprintf("%d", source.GetExternalID())) + if !ok { + name, err := user_model.GetUserNameByID(g.ctx, source.GetExternalID()) if err != nil { - log.Error("GetUserIDByExternalUserID: %v", err) + return 0, err } - if userid > 0 { - g.userMap[source.GetExternalID()] = userid + // let's not reuse an ID when the user was deleted or has a different user name + if name != source.GetExternalName() { + userid = 0 + } else { + userid = source.GetExternalID() } + g.userMap[source.GetExternalID()] = userid } + return userid, nil + } - if userid > 0 { - err = target.RemapExternalUser("", 0, userid) - } else { - err = target.RemapExternalUser(source.GetExternalName(), source.GetExternalID(), g.doer.ID) + func (g *GiteaLocalUploader) remapExternalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (userid int64, err error) { + userid, ok := g.userMap[source.GetExternalID()] + if !ok { + userid, err = user_model.GetUserIDByExternalUserID(g.gitServiceType.Name(), fmt.Sprintf("%d", source.GetExternalID())) + if err != nil { + log.Error("GetUserIDByExternalUserID: %v", err) + return 0, err + } + g.userMap[source.GetExternalID()] = userid } - return + return userid, nil }
• services/migrations/gitea_uploader_test.go
  • @@ -117,6 +117,56 @@ func TestGiteaUploadRepo(t *testing.T) {
    assert.Len(t, pulls[0].Issue.Comments, 2) } + func TestGiteaUploadRemapLocalUser(t *testing.T) { + unittest.PrepareTestEnv(t) + doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User) + user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User) + + repoName := "migrated" + uploader := NewGiteaLocalUploader(context.Background(), doer, doer.Name, repoName) + // call remapLocalUser + uploader.sameApp = true + + externalID := int64(1234567) + externalName := "username" + source := base.Release{ + PublisherID: externalID, + PublisherName: externalName, + } + + // + // The externalID does not match any existing user, everything + // belongs to the doer + // + target := models.Release{} + uploader.userMap = make(map[int64]int64) + err := uploader.remapUser(&source, &target) + assert.NoError(t, err) + assert.EqualValues(t, doer.ID, target.GetUserID()) + + // + // The externalID matches a known user but the name does not match, + // everything belongs to the doer + // + source.PublisherID = user.ID + target = models.Release{} + uploader.userMap = make(map[int64]int64) + err = uploader.remapUser(&source, &target) + assert.NoError(t, err) + assert.EqualValues(t, doer.ID, target.GetUserID()) + + // + // The externalID and externalName match an existing user, everything + // belongs to the existing user + // + source.PublisherName = user.Name + target = models.Release{} + uploader.userMap = make(map[int64]int64) + err = uploader.remapUser(&source, &target) + assert.NoError(t, err) + assert.EqualValues(t, user.ID, target.GetUserID()) + } + func TestGiteaUploadRemapExternalUser(t *testing.T) { unittest.PrepareTestEnv(t) doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User)
  • @@ -124,9 +174,11 @@ func TestGiteaUploadRemapExternalUser(t *testing.T) {
    repoName := "migrated" uploader := NewGiteaLocalUploader(context.Background(), doer, doer.Name, repoName) uploader.gitServiceType = structs.GiteaService + // call remapExternalUser + uploader.sameApp = false externalID := int64(1234567) - externalName := "url.or.something" + externalName := "username" source := base.Release{ PublisherID: externalID, PublisherName: externalName,
  • @@ -136,8 +188,9 @@ func TestGiteaUploadRemapExternalUser(t *testing.T) {
    // When there is no user linked to the external ID, the migrated data is authored // by the doer // + uploader.userMap = make(map[int64]int64) target := models.Release{} - err := uploader.remapExternalUser(&source, &target) + err := uploader.remapUser(&source, &target) assert.NoError(t, err) assert.EqualValues(t, doer.ID, target.GetUserID())
  • @@ -158,8 +211,9 @@ func TestGiteaUploadRemapExternalUser(t *testing.T) {
    // When a user is linked to the external ID, it becomes the author of // the migrated data // + uploader.userMap = make(map[int64]int64) target = models.Release{} - err = uploader.remapExternalUser(&source, &target) + err = uploader.remapUser(&source, &target) assert.NoError(t, err) - assert.EqualValues(t, target.GetUserID(), linkedUser.ID) + assert.EqualValues(t, linkedUser.ID, target.GetUserID()) }