1 files changed, 43 insertions, 0 deletions
diff --git a/rubocop/cop/gitlab/service_response.rb b/rubocop/cop/gitlab/service_response.rb
new file mode 100644
index 00000000000..edde662a038
--- /dev/null
+++ b/rubocop/cop/gitlab/service_response.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+require_relative '../../code_reuse_helpers'
+
+module RuboCop
+  module Cop
+    module Gitlab
+      class ServiceResponse < ::RuboCop::Cop::Base
+        include CodeReuseHelpers
+
+        # This cop checks that ServiceResponse object is not used with the
+        # deprecated attribute `http_status`.
+        #
+        # @example
+        #
+        #   # bad
+        #   ServiceResponse.error(message: "...", http_status: :forbidden)
+        #
+        #   # good
+        #   ServiceResponse.error(message: "...", reason: :insufficient_permissions)
+        MSG = 'Use `reason` instead of the deprecated `http_status`: https://gitlab.com/gitlab-org/gitlab/-/issues/356036'
+
+        RESTRICT_ON_SEND = %i[error success new].freeze
+        METHOD_NAMES = RESTRICT_ON_SEND.map(&:inspect).join(' ').freeze
+
+        def_node_matcher :service_response_with_http_status, <<~PATTERN
+          (send
+            (const {nil? cbase} :ServiceResponse)
+            {#{METHOD_NAMES}}
+            (hash <$(pair (sym :http_status) _) ...>)
+          )
+        PATTERN
+
+        def on_send(node)
+          pair = service_response_with_http_status(node)
+          return unless pair
+
+          add_offense(pair)
+        end
+      end
+    end
+  end
+end