Properly migrate automatic merge GitLab comments

services/migrations/gitea_uploader.go

@@ -485,6 +485,8 @@ func (g *GiteaLocalUploader) CreateComments(comments ...*base.Comment) error {
 			if comment.Meta["NewTitle"] != nil {
 				cm.NewTitle = fmt.Sprintf("%s", comment.Meta["NewTitle"])
 			}
+		case issues_model.CommentTypePRScheduledToAutoMerge, issues_model.CommentTypePRUnScheduledToAutoMerge:
+			cm.Content = ""
 		default:
 		}
 

services/migrations/gitlab.go

@@ -14,6 +14,7 @@ import (
 	"strings"
 	"time"
 
+	issues_model "code.gitea.io/gitea/models/issues"
 	"code.gitea.io/gitea/modules/container"
 	"code.gitea.io/gitea/modules/log"
 	base "code.gitea.io/gitea/modules/migration"
@@ -506,30 +507,8 @@ func (g *GitlabDownloader) GetComments(commentable base.Commentable) ([]*base.Co
 			return nil, false, fmt.Errorf("error while listing comments: %v %w", g.repoID, err)
 		}
 		for _, comment := range comments {
-			// Flatten comment threads
-			if !comment.IndividualNote {
-				for _, note := range comment.Notes {
-					allComments = append(allComments, &base.Comment{
-						IssueIndex:  commentable.GetLocalIndex(),
-						Index:       int64(note.ID),
-						PosterID:    int64(note.Author.ID),
-						PosterName:  note.Author.Username,
-						PosterEmail: note.Author.Email,
-						Content:     note.Body,
-						Created:     *note.CreatedAt,
-					})
-				}
-			} else {
-				c := comment.Notes[0]
-				allComments = append(allComments, &base.Comment{
-					IssueIndex:  commentable.GetLocalIndex(),
-					Index:       int64(c.ID),
-					PosterID:    int64(c.Author.ID),
-					PosterName:  c.Author.Username,
-					PosterEmail: c.Author.Email,
-					Content:     c.Body,
-					Created:     *c.CreatedAt,
-				})
+			for _, note := range comment.Notes {
+				allComments = append(allComments, g.convertNoteToComment(commentable.GetLocalIndex(), note))
 			}
 		}
 		if resp.NextPage == 0 {
@@ -540,6 +519,29 @@ func (g *GitlabDownloader) GetComments(commentable base.Commentable) ([]*base.Co
 	return allComments, true, nil
 }
 
+func (g *GitlabDownloader) convertNoteToComment(localIndex int64, note *gitlab.Note) *base.Comment {
+	comment := &base.Comment{
+		IssueIndex:  localIndex,
+		Index:       int64(note.ID),
+		PosterID:    int64(note.Author.ID),
+		PosterName:  note.Author.Username,
+		PosterEmail: note.Author.Email,
+		Content:     note.Body,
+		Created:     *note.CreatedAt,
+	}
+
+	// Try to find the underlying event of system notes.
+	if note.System {
+		if strings.HasPrefix(note.Body, "enabled an automatic merge") {
+			comment.CommentType = issues_model.CommentTypePRScheduledToAutoMerge.String()
+		} else if note.Body == "canceled the automatic merge" {
+			comment.CommentType = issues_model.CommentTypePRUnScheduledToAutoMerge.String()
+		}
+	}
+
+	return comment
+}
+
 // GetPullRequests returns pull requests according page and perPage
 func (g *GitlabDownloader) GetPullRequests(page, perPage int) ([]*base.PullRequest, bool, error) {
 	if perPage > g.maxPerPage {

services/migrations/gitlab_test.go

@@ -517,6 +517,71 @@ func TestAwardsToReactions(t *testing.T) {
 	}, reactions)
 }
 
+func TestNoteToComment(t *testing.T) {
+	downloader := &GitlabDownloader{}
+
+	now := time.Now()
+	makeTestNote := func(id int, body string, system bool) gitlab.Note {
+		return gitlab.Note{
+			ID: id,
+			Author: struct {
+				ID        int    `json:"id"`
+				Username  string `json:"username"`
+				Email     string `json:"email"`
+				Name      string `json:"name"`
+				State     string `json:"state"`
+				AvatarURL string `json:"avatar_url"`
+				WebURL    string `json:"web_url"`
+			}{
+				ID:       72,
+				Email:    "test@example.com",
+				Username: "test",
+			},
+			Body:      body,
+			CreatedAt: &now,
+			System:    system,
+		}
+	}
+	notes := []gitlab.Note{
+		makeTestNote(1, "This is a regular comment", false),
+		makeTestNote(2, "enabled an automatic merge for abcd1234", true),
+		makeTestNote(3, "canceled the automatic merge", true),
+	}
+	comments := []base.Comment{{
+		IssueIndex:  17,
+		Index:       1,
+		PosterID:    72,
+		PosterName:  "test",
+		PosterEmail: "test@example.com",
+		CommentType: "",
+		Content:     "This is a regular comment",
+		Created:     now,
+	}, {
+		IssueIndex:  17,
+		Index:       2,
+		PosterID:    72,
+		PosterName:  "test",
+		PosterEmail: "test@example.com",
+		CommentType: "pull_scheduled_merge",
+		Content:     "enabled an automatic merge for abcd1234",
+		Created:     now,
+	}, {
+		IssueIndex:  17,
+		Index:       3,
+		PosterID:    72,
+		PosterName:  "test",
+		PosterEmail: "test@example.com",
+		CommentType: "pull_cancel_scheduled_merge",
+		Content:     "canceled the automatic merge",
+		Created:     now,
+	}}
+
+	for i, note := range notes {
+		actualComment := *downloader.convertNoteToComment(17, &note)
+		assert.EqualValues(t, actualComment, comments[i])
+	}
+}
+
 func TestGitlabIIDResolver(t *testing.T) {
 	r := gitlabIIDResolver{}
 	r.recordIssueIID(1)

templates/repo/issue/view_content/comments.tmpl

@@ -381,8 +381,9 @@
 								{{svg (MigrationIcon $.Repository.GetOriginalURLHostname)}}
 								{{.OriginalAuthor}}
 							</span>
-							<span class="text grey muted-links"> {{if $.Repository.OriginalURL}}</span>
-							<span class="text migrate">({{ctx.Locale.Tr "repo.migrated_from" ($.Repository.OriginalURL|Escape) ($.Repository.GetOriginalURLHostname|Escape) | Safe}}){{end}}</span>
+							{{if $.Repository.OriginalURL}}
+							<span class="migrate">({{ctx.Locale.Tr "repo.migrated_from" ($.Repository.OriginalURL|Escape) ($.Repository.GetOriginalURLHostname|Escape) | Safe}})</span>
+							{{end}}
 						{{else}}
 							{{template "shared/user/authorlink" .Poster}}
 						{{end}}
@@ -525,12 +526,13 @@
 																{{end}}
 																<span class="text grey muted-links">
 																	{{if .OriginalAuthor}}
-																		<span class="text black gt-font-semibold">
+																		<span class="text black">
 																			{{svg (MigrationIcon $.Repository.GetOriginalURLHostname)}}
 																			{{.OriginalAuthor}}
 																		</span>
-																		<span class="text grey muted-links"> {{if $.Repository.OriginalURL}}</span>
-																		<span class="text migrate">({{ctx.Locale.Tr "repo.migrated_from" ($.Repository.OriginalURL|Escape) ($.Repository.GetOriginalURLHostname|Escape) | Safe}}){{end}}</span>
+																		{{if $.Repository.OriginalURL}}
+																		<span class="migrate">({{ctx.Locale.Tr "repo.migrated_from" ($.Repository.OriginalURL|Escape) ($.Repository.GetOriginalURLHostname|Escape) | Safe}})</span>
+																		{{end}}
 																	{{else}}
 																		{{template "shared/user/authorlink" .Poster}}
 																	{{end}}
@@ -795,7 +797,17 @@
 			<div class="timeline-item event" id="{{.HashTag}}">
 				<span class="badge">{{svg "octicon-git-merge" 16}}</span>
 				<span class="text grey muted-links">
-					{{template "shared/user/authorlink" .Poster}}
+					{{if .OriginalAuthor}}
+						<span class="text black">
+							{{svg (MigrationIcon $.Repository.GetOriginalURLHostname)}}
+							{{.OriginalAuthor}}
+						</span>
+						{{if $.Repository.OriginalURL}}
+						<span class="migrate">({{ctx.Locale.Tr "repo.migrated_from" ($.Repository.OriginalURL|Escape) ($.Repository.GetOriginalURLHostname|Escape) | Safe}})</span>
+						{{end}}
+					{{else}}
+						{{template "shared/user/authorlink" .Poster}}
+					{{end}}
 					{{if eq .Type 34}}{{ctx.Locale.Tr "repo.pulls.auto_merge_newly_scheduled_comment" $createdStr | Safe}}
 					{{else}}{{ctx.Locale.Tr "repo.pulls.auto_merge_canceled_schedule_comment" $createdStr | Safe}}{{end}}
 				</span>