Fix deadlock in webhook PullRequest (#6102)

Signed-off-by: Andrew Thornton <art27@cantab.net>

models/webhook_dingtalk.go

@@ -230,12 +230,13 @@ func getDingtalkPullRequestPayload(p *api.PullRequestPayload) (*DingtalkPayload,
 		title = fmt.Sprintf("[%s] Pull request edited: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
 		text = p.PullRequest.Body
 	case api.HookIssueAssigned:
-		list, err := MakeAssigneeList(&Issue{ID: p.PullRequest.ID})
-		if err != nil {
-			return &DingtalkPayload{}, err
+		list := make([]string, len(p.PullRequest.Assignees))
+		for i, user := range p.PullRequest.Assignees {
+			list[i] = user.UserName
 		}
 		title = fmt.Sprintf("[%s] Pull request assigned to %s: #%d %s", p.Repository.FullName,
-			list, p.Index, p.PullRequest.Title)
+			strings.Join(list, ", "),
+			p.Index, p.PullRequest.Title)
 		text = p.PullRequest.Body
 	case api.HookIssueUnassigned:
 		title = fmt.Sprintf("[%s] Pull request unassigned: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)

models/webhook_discord.go

@@ -347,12 +347,13 @@ func getDiscordPullRequestPayload(p *api.PullRequestPayload, meta *DiscordMeta)
 		text = p.PullRequest.Body
 		color = warnColor
 	case api.HookIssueAssigned:
-		list, err := MakeAssigneeList(&Issue{ID: p.PullRequest.ID})
-		if err != nil {
-			return &DiscordPayload{}, err
+		list := make([]string, len(p.PullRequest.Assignees))
+		for i, user := range p.PullRequest.Assignees {
+			list[i] = user.UserName
 		}
-		title = fmt.Sprintf("[%s] Pull request assigned to %s: #%d %s", p.Repository.FullName,
-			list, p.Index, p.PullRequest.Title)
+		title = fmt.Sprintf("[%s] Pull request assigned to %s: #%d by %s", p.Repository.FullName,
+			strings.Join(list, ", "),
+			p.Index, p.PullRequest.Title)
 		text = p.PullRequest.Body
 		color = successColor
 	case api.HookIssueUnassigned:

models/webhook_slack.go

@@ -301,12 +301,12 @@ func getSlackPullRequestPayload(p *api.PullRequestPayload, slack *SlackMeta) (*S
 		text = fmt.Sprintf("[%s] Pull request edited: %s by %s", p.Repository.FullName, titleLink, senderLink)
 		attachmentText = SlackTextFormatter(p.PullRequest.Body)
 	case api.HookIssueAssigned:
-		list, err := MakeAssigneeList(&Issue{ID: p.PullRequest.ID})
-		if err != nil {
-			return &SlackPayload{}, err
+		list := make([]string, len(p.PullRequest.Assignees))
+		for i, user := range p.PullRequest.Assignees {
+			list[i] = SlackLinkFormatter(setting.AppURL+user.UserName, user.UserName)
 		}
 		text = fmt.Sprintf("[%s] Pull request assigned to %s: %s by %s", p.Repository.FullName,
-			SlackLinkFormatter(setting.AppURL+list, list),
+			strings.Join(list, ", "),
 			titleLink, senderLink)
 	case api.HookIssueUnassigned:
 		text = fmt.Sprintf("[%s] Pull request unassigned: %s by %s", p.Repository.FullName, titleLink, senderLink)