Move CommitStatusEnums to Enums::CommitStatus

Move enum related modules into a separate directory

app/models/commit_status.rb

@@ -77,9 +77,9 @@ class CommitStatus < ApplicationRecord
     merge(or_conditions)
   end
 
-  # We use `CommitStatusEnums.failure_reasons` here so that EE can more easily
+  # We use `Enums::CommitStatus.failure_reasons` here so that EE can more easily
   # extend this `Hash` with new values.
-  enum_with_nil failure_reason: ::CommitStatusEnums.failure_reasons
+  enum_with_nil failure_reason: Enums::CommitStatus.failure_reasons
 
   ##
   # We still create some CommitStatuses outside of CreatePipelineService.

app/models/concerns/enums/commit_status.rb

+# frozen_string_literal: true
+
+module Enums
+  module CommitStatus
+    # Returns the Hash to use for creating the `failure_reason` enum for
+    # `CommitStatus`.
+    def self.failure_reasons
+      {
+        unknown_failure: nil,
+        script_failure: 1,
+        api_failure: 2,
+        stuck_or_timeout_failure: 3,
+        runner_system_failure: 4,
+        missing_dependency_failure: 5,
+        runner_unsupported: 6,
+        stale_schedule: 7,
+        job_execution_timeout: 8,
+        archived_failure: 9,
+        unmet_prerequisites: 10,
+        scheduler_failure: 11,
+        data_integrity_failure: 12,
+        forward_deployment_failure: 13,
+        protected_environment_failure: 1_000,
+        insufficient_bridge_permissions: 1_001,
+        downstream_bridge_project_not_found: 1_002,
+        invalid_bridge_trigger: 1_003,
+        upstream_bridge_project_not_found: 1_004,
+        insufficient_upstream_permissions: 1_005,
+        bridge_pipeline_is_child_pipeline: 1_006,
+        downstream_pipeline_creation_failed: 1_007
+      }
+    end
+  end
+end