Add latest changes from gitlab-org/gitlab@master

1 files changed, 27 insertions, 0 deletions

diff --git a/lib/gitlab/utils/log_limited_array.rb b/lib/gitlab/utils/log_limited_array.rb
new file mode 100644
index 00000000000..fe8aadf9020
--- /dev/null
+++ b/lib/gitlab/utils/log_limited_array.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Utils
+    module LogLimitedArray
+      MAXIMUM_ARRAY_LENGTH = 10.kilobytes
+
+      # Prepare an array for logging by limiting its JSON representation
+      # to around 10 kilobytes. Once we hit the limit, add "..." as the
+      # last item in the returned array.
+      def self.log_limited_array(array)
+        return [] unless array.is_a?(Array)
+
+        total_length = 0
+        limited_array = array.take_while do |arg|
+          total_length += arg.to_json.length
+
+          total_length <= MAXIMUM_ARRAY_LENGTH
+        end
+
+        limited_array.push('...') if total_length > MAXIMUM_ARRAY_LENGTH
+
+        limited_array
+      end
+    end
+  end
+end