Handle exception in PipelineBridgeStatusService

app/services/ci/pipeline_bridge_status_service.rb

@@ -5,7 +5,13 @@ module Ci
     def execute(pipeline)
       return unless pipeline.bridge_triggered?
 
-      pipeline.source_bridge.inherit_status_from_downstream!(pipeline)
+      begin
+        pipeline.source_bridge.inherit_status_from_downstream!(pipeline)
+      rescue StateMachines::InvalidTransition => e
+        Gitlab::ErrorTracking.track_exception(e,
+          bridge_id: pipeline.source_bridge.id,
+          downstream_pipeline_id: pipeline.id)
+      end
     end
   end
 end

spec/services/ci/pipeline_bridge_status_service_spec.rb

@@ -22,6 +22,24 @@ describe Ci::PipelineBridgeStatusService do
 
         subject
       end
+
+      context 'when bridge job status raises state machine errors' do
+        before do
+          pipeline.drop!
+          bridge.drop!
+        end
+
+        it 'tracks the exception' do
+          expect(Gitlab::ErrorTracking)
+            .to receive(:track_exception)
+            .with(
+              instance_of(StateMachines::InvalidTransition),
+              bridge_id: bridge.id,
+              downstream_pipeline_id: pipeline.id)
+
+          subject
+        end
+      end
     end
   end
 end