Create a todo on failing MR build

When a build fails for a commit, create a todo for the author of the
merge request that commit is the HEAD of. If the commit isn't the HEAD
commit of any MR, don't do anything. If there already is a todo for that
user and MR, don't do anything.

Current limitations:
- This isn't configurable by project.
- The author of a merge request might not be the person who pushed the
  breaking commit.

1 files changed, 7 insertions, 0 deletions

diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index 8b3d56c2b4c..fe0579744b4 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -12,6 +12,7 @@ module MergeRequests
       close_merge_requests
       reload_merge_requests
       reset_merge_when_build_succeeds
+      mark_pending_todos_done
 
       # Leave a system note if a branch was deleted/added
       if branch_added? || branch_removed?
@@ -80,6 +81,12 @@ module MergeRequests
       merge_requests_for_source_branch.each(&:reset_merge_when_build_succeeds)
     end
 
+    def mark_pending_todos_done
+      merge_requests_for_source_branch.each do |merge_request|
+        todo_service.merge_request_push(merge_request, @current_user)
+      end
+    end
+
     def find_new_commits
       if branch_added?
         @commits = []