1 files changed, 36 insertions, 0 deletions
diff --git a/rubocop/cop/migration/with_lock_retries_without_ddl_transaction.rb b/rubocop/cop/migration/with_lock_retries_without_ddl_transaction.rb
new file mode 100644
index 00000000000..ebd91dd5a6e
--- /dev/null
+++ b/rubocop/cop/migration/with_lock_retries_without_ddl_transaction.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require_relative '../../migration_helpers'
+
+module RuboCop
+  module Cop
+    module Migration
+      # Cop that prevents usage of `with_lock_retries` with `disable_ddl_transaction!`
+      class WithLockRetriesWithoutDdlTransaction < RuboCop::Cop::Cop
+        include MigrationHelpers
+
+        MSG = '`with_lock_retries` cannot be used with disabled DDL transactions (`disable_ddl_transaction!`). ' \
+          'Please remove the `disable_ddl_transaction!` call from your migration.'.freeze
+
+        def_node_matcher :disable_ddl_transaction?, <<~PATTERN
+        (send _ :disable_ddl_transaction!)
+        PATTERN
+
+        def_node_matcher :with_lock_retries?, <<~PATTERN
+          (send _ :with_lock_retries)
+        PATTERN
+
+        def on_send(node)
+          return unless in_migration?(node)
+          return unless with_lock_retries?(node)
+
+          node.each_ancestor(:begin) do |begin_node|
+            disable_ddl_transaction_node = begin_node.children.find { |n| disable_ddl_transaction?(n) }
+
+            add_offense(node, location: :expression) if disable_ddl_transaction_node
+          end
+        end
+      end
+    end
+  end
+end