Add ci config class that represents a key value

2 files changed, 28 insertions, 0 deletions

diff --git a/lib/gitlab/ci/config/node/key.rb b/lib/gitlab/ci/config/node/key.rb
new file mode 100644
index 00000000000..f8b461ca098
--- /dev/null
+++ b/lib/gitlab/ci/config/node/key.rb
@@ -0,0 +1,18 @@
+module Gitlab
+  module Ci
+    class Config
+      module Node
+        ##
+        # Entry that represents a key.
+        #
+        class Key < Entry
+          include Validatable
+
+          validations do
+            validates :config, key: true
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/config/node/validators.rb b/lib/gitlab/ci/config/node/validators.rb
index 56f7661daf0..f2b3a8a3f81 100644
--- a/lib/gitlab/ci/config/node/validators.rb
+++ b/lib/gitlab/ci/config/node/validators.rb
@@ -13,6 +13,16 @@ module Gitlab
             end
           end
 
+          class KeyValidator < ActiveModel::EachValidator
+            include LegacyValidationHelpers
+
+            def validate_each(record, attribute, value)
+              unless validate_string(value)
+                record.errors.add(attribute, 'should be a string or symbol')
+              end
+            end
+          end
+
           class TypeValidator < ActiveModel::EachValidator
             def validate_each(record, attribute, value)
               type = options[:with]