Add latest changes from gitlab-org/gitlab@master

2 files changed, 71 insertions, 0 deletions

diff --git a/lib/gitlab/graphql/deprecations_base.rb b/lib/gitlab/graphql/deprecations_base.rb
new file mode 100644
index 00000000000..2ee14620907
--- /dev/null
+++ b/lib/gitlab/graphql/deprecations_base.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Graphql
+    # include DeprecationsBase at the end of the target module
+    module DeprecationsBase
+      NameDeprecation = Struct.new(:old_name, :new_name, :milestone, keyword_init: true)
+
+      def self.included(klass)
+        klass.extend(ClassMethods)
+
+        klass.const_set('OLD_GRAPHQL_NAME_MAP', klass::DEPRECATIONS.index_by do |d|
+          klass.map_graphql_name(d.old_name)
+        end.freeze)
+        klass.const_set('OLD_NAME_MAP', klass::DEPRECATIONS.index_by(&:old_name).freeze)
+        klass.const_set('NEW_NAME_MAP', klass::DEPRECATIONS.index_by(&:new_name).freeze)
+      end
+
+      module ClassMethods
+        def deprecated?(old_name)
+          self::OLD_NAME_MAP.key?(old_name)
+        end
+
+        def deprecation_for(old_name)
+          self::OLD_NAME_MAP[old_name]
+        end
+
+        def deprecation_by(new_name)
+          self::NEW_NAME_MAP[new_name]
+        end
+
+        # Returns the new `graphql_name` (Type#graphql_name) of a deprecated GID,
+        # or the `graphql_name` argument given if no deprecation applies.
+        def apply_to_graphql_name(graphql_name)
+          return graphql_name unless deprecation = self::OLD_GRAPHQL_NAME_MAP[graphql_name]
+
+          self.map_graphql_name(deprecation.new_name)
+        end
+
+        private
+
+        def map_graphql_name(name)
+          raise NotImplementedError, "Implement `#{__method__}` in #{self.name}"
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/graphql/type_name_deprecations.rb b/lib/gitlab/graphql/type_name_deprecations.rb
new file mode 100644
index 00000000000..4c75a0e7bd3
--- /dev/null
+++ b/lib/gitlab/graphql/type_name_deprecations.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Graphql
+    module TypeNameDeprecations
+      # Contains the deprecations in place.
+      # Example:
+      #
+      #   DEPRECATIONS = [
+      #     Gitlab::Graphql::DeprecationsBase::NameDeprecation.new(
+      #       old_name: 'CiRunnerUpgradeStatusType', new_name: 'CiRunnerUpgradeStatus', milestone: '15.3'
+      #     )
+      #   ].freeze
+      DEPRECATIONS = [].freeze
+
+      def self.map_graphql_name(name)
+        name
+      end
+
+      include Gitlab::Graphql::DeprecationsBase
+    end
+  end
+end