1 files changed, 29 insertions, 0 deletions
diff --git a/rubocop/cop/graphql/id_type.rb b/rubocop/cop/graphql/id_type.rb
new file mode 100644
index 00000000000..96f90ac136a
--- /dev/null
+++ b/rubocop/cop/graphql/id_type.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Graphql
+      class IDType < RuboCop::Cop::Cop
+        MSG = 'Do not use GraphQL::ID_TYPE, use a specific GlobalIDType instead'
+
+        WHITELISTED_ARGUMENTS = %i[iid full_path project_path group_path target_project_path].freeze
+
+        def_node_search :graphql_id_type?, <<~PATTERN
+          (send nil? :argument (_ #does_not_match?) (const (const nil? :GraphQL) :ID_TYPE) ...)
+        PATTERN
+
+        def on_send(node)
+          return unless graphql_id_type?(node)
+
+          add_offense(node)
+        end
+
+        private
+
+        def does_not_match?(arg)
+          !WHITELISTED_ARGUMENTS.include?(arg)
+        end
+      end
+    end
+  end
+end