lib/jira_sync/plugin.rb in danger-jira_sync-0.0.5 vs lib/jira_sync/plugin.rb in danger-jira_sync-0.0.6

@@ -136,10 +136,12 @@
       end
       missing_labels
     end
 
     def add_labels_to_issue(labels)
-      github.api.add_labels_to_an_issue(repo, issue_number, labels)
+      existing_labels = github.api.labels_for_issue(repo, issue_number).map { |label| label[:name] }
+      new_labels = labels - existing_labels
+      github.api.add_labels_to_an_issue(repo, issue_number, new_labels) unless new_labels.empty?
     rescue Octokit::Error => e
       warn "#{e.response_status} Error while adding labels [#{labels}] to GitHub issue: #{e.message}"
     end
   end
 end