1 files changed, 12 insertions, 0 deletions
diff --git a/lib/gitlab/git/index.rb b/lib/gitlab/git/index.rb
index db532600d1b..d94082a3e30 100644
--- a/lib/gitlab/git/index.rb
+++ b/lib/gitlab/git/index.rb
@@ -10,6 +10,7 @@ module Gitlab
       DEFAULT_MODE = 0o100644
 
       ACTIONS = %w(create create_dir update move delete).freeze
+      ACTION_OPTIONS = %i(file_path previous_path content encoding).freeze
 
       attr_reader :repository, :raw_index
 
@@ -20,6 +21,11 @@ module Gitlab
 
       delegate :read_tree, :get, to: :raw_index
 
+      def apply(action, options)
+        validate_action!(action)
+        public_send(action, options.slice(*ACTION_OPTIONS)) # rubocop:disable GitlabSecurity/PublicSend
+      end
+
       def write_tree
         raw_index.write_tree(repository.rugged)
       end
@@ -140,6 +146,12 @@ module Gitlab
       rescue Rugged::IndexError => e
         raise IndexError, e.message
       end
+
+      def validate_action!(action)
+        unless ACTIONS.include?(action.to_s)
+          raise ArgumentError, "Unknown action '#{action}'"
+        end
+      end
     end
   end
 end