Trigger webhooks when all discussions have been resolved

app/services/merge_requests/resolved_discussion_notification_service.rb

@@ -6,6 +6,7 @@ module MergeRequests
       return unless merge_request.discussions_resolved?
 
       SystemNoteService.resolve_all_discussions(merge_request, project, current_user)
+      execute_hooks(merge_request, 'update')
       notification_service.async.resolve_all_discussions(merge_request, current_user)
     end
   end

lib/gitlab/hook_data/merge_request_builder.rb

@@ -7,6 +7,7 @@ module Gitlab
         %i[
           assignee_id
           author_id
+          blocking_discussions_resolved
           created_at
           description
           head_pipeline_id
@@ -57,7 +58,8 @@ module Gitlab
           human_time_estimate: merge_request.human_time_estimate,
           assignee_ids: merge_request.assignee_ids,
           assignee_id: merge_request.assignee_ids.first, # This key is deprecated
-          state: merge_request.state # This key is deprecated
+          state: merge_request.state, # This key is deprecated
+          blocking_discussions_resolved: merge_request.mergeable_discussions_state?
         }
 
         merge_request.attributes.with_indifferent_access.slice(*self.class.safe_hook_attributes)

spec/lib/gitlab/hook_data/merge_request_builder_spec.rb

@@ -15,6 +15,7 @@ RSpec.describe Gitlab::HookData::MergeRequestBuilder do
         assignee_id
         assignee_ids
         author_id
+        blocking_discussions_resolved
         created_at
         description
         head_pipeline_id

spec/services/merge_requests/resolved_discussion_notification_service_spec.rb

@@ -26,6 +26,12 @@ RSpec.describe MergeRequests::ResolvedDiscussionNotificationService do
 
         subject.execute(merge_request)
       end
+
+      it "doesn't send a webhook" do
+        expect_any_instance_of(MergeRequests::BaseService).not_to receive(:execute_hooks)
+
+        subject.execute(merge_request)
+      end
     end
 
     context "when all discussions are resolved" do
@@ -44,6 +50,12 @@ RSpec.describe MergeRequests::ResolvedDiscussionNotificationService do
 
         subject.execute(merge_request)
       end
+
+      it "sends a webhook" do
+        expect_any_instance_of(MergeRequests::BaseService).to receive(:execute_hooks).with(merge_request, 'update')
+
+        subject.execute(merge_request)
+      end
     end
   end
 end