add notifications for commit comments

notify the commit author (resolved by email) and @mentioned users
when a new commit comment is created. uses the existing
NotificationSourceCommit source and follows the same pattern as
CreateRepoTransferNotification.

models/activities/notification.go

@@ -115,6 +115,49 @@ func init() {
 	db.RegisterModel(new(Notification))
 }
 
+// CreateCommitCommentNotification creates notifications for a commit comment.
+// It notifies the commit author (if they're a Gitea user) and any @mentioned users.
+func CreateCommitCommentNotification(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, comment *issues_model.Comment, commitAuthorEmail string, mentionedUsernames []string) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		receiverIDs := make(map[int64]struct{})
+
+		// Notify the commit author if they map to a Gitea user
+		if commitAuthorEmail != "" {
+			author, err := user_model.GetUserByEmail(ctx, commitAuthorEmail)
+			if err == nil && author.ID != doer.ID {
+				receiverIDs[author.ID] = struct{}{}
+			}
+		}
+
+		// Notify @mentioned users
+		for _, username := range mentionedUsernames {
+			mentioned, err := user_model.GetUserByName(ctx, username)
+			if err == nil && mentioned.ID != doer.ID {
+				receiverIDs[mentioned.ID] = struct{}{}
+			}
+		}
+
+		if len(receiverIDs) == 0 {
+			return nil
+		}
+
+		var notifications []*Notification
+		for uid := range receiverIDs {
+			notifications = append(notifications, &Notification{
+				UserID:    uid,
+				RepoID:    repo.ID,
+				Status:    NotificationStatusUnread,
+				Source:    NotificationSourceCommit,
+				CommitID:  comment.CommitSHA,
+				CommentID: comment.ID,
+				UpdatedBy: doer.ID,
+			})
+		}
+
+		return db.Insert(ctx, notifications)
+	})
+}
+
 // CreateRepoTransferNotification creates  notification for the user a repository was transferred to
 func CreateRepoTransferNotification(ctx context.Context, doer, newOwner *user_model.User, repo *repo_model.Repository) error {
 	return db.WithTx(ctx, func(ctx context.Context) error {

routers/web/repo/commit_comment.go

@@ -6,11 +6,13 @@ package repo
 import (
 	"net/http"
 
+	activities_model "code.gitea.io/gitea/models/activities"
 	issues_model "code.gitea.io/gitea/models/issues"
 	"code.gitea.io/gitea/models/renderhelper"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/markup/markdown"
+	"code.gitea.io/gitea/modules/references"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/services/context"
@@ -109,6 +111,12 @@ func CreateCommitComment(ctx *context.Context) {
 		return
 	}
 
+	// Send notifications to commit author and @mentioned users
+	mentions := references.FindAllMentionsMarkdown(content)
+	if err := activities_model.CreateCommitCommentNotification(ctx, ctx.Doer, ctx.Repo.Repository, comment, commit.Author.Email, mentions); err != nil {
+		log.Error("CreateCommitCommentNotification: %v", err)
+	}
+
 	// Render markdown content
 	rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository, renderhelper.RepoCommentOptions{})
 	comment.RenderedContent, err = markdown.RenderString(rctx, comment.Content)