Add task lists to issues and merge requests

Make the Markdown parser recognize "[x]" or "[ ]" at the beginning of a
list item and turn it into a checkbox input.  Users who can modify the
issue or MR can toggle the checkboxes directly or edit the Markdown to
manage the tasks.  Task status is also displayed in the MR and issue
lists.

1 files changed, 7 insertions, 1 deletions

diff --git a/app/services/merge_requests/update_service.rb b/app/services/merge_requests/update_service.rb
index 6e416a0080c..fc26619cd17 100644
--- a/app/services/merge_requests/update_service.rb
+++ b/app/services/merge_requests/update_service.rb
@@ -17,9 +17,15 @@ module MergeRequests
         MergeRequests::ReopenService.new(project, current_user, {}).execute(merge_request)
       when 'close'
         MergeRequests::CloseService.new(project, current_user, {}).execute(merge_request)
+      when 'task_check'
+        merge_request.update_nth_task(params[:task_num].to_i, true)
+      when 'task_uncheck'
+        merge_request.update_nth_task(params[:task_num].to_i, false)
       end
 
-      if params.present? && merge_request.update_attributes(params.except(:state_event))
+      if params.present? && merge_request.update_attributes(
+        params.except(:state_event, :task_num)
+      )
         merge_request.reset_events_cache
 
         if merge_request.previous_changes.include?('milestone_id')