1 files changed, 26 insertions, 0 deletions
diff --git a/lib/gitlab/ci/config/entry/files.rb b/lib/gitlab/ci/config/entry/files.rb
new file mode 100644
index 00000000000..d0d6a36d754
--- /dev/null
+++ b/lib/gitlab/ci/config/entry/files.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    class Config
+      module Entry
+        ##
+        # Entry that represents an array of file paths.
+        #
+        class Files < ::Gitlab::Config::Entry::Node
+          include ::Gitlab::Config::Entry::Validatable
+
+          validations do
+            validates :config, array_of_strings: true
+            validates :config, length: {
+              minimum: 1,
+              maximum: 2,
+              too_short: 'requires at least %{count} item',
+              too_long: 'has too many items (maximum is %{count})'
+            }
+          end
+        end
+      end
+    end
+  end
+end