require "active_support/string_inquirer" require "active_support/deprecation" RAILS_ROOT = (Class.new(ActiveSupport::Deprecation::DeprecationProxy) do def target Rails.root end def replace(val) puts OMG end def warn(callstack, called, args) msg = "RAILS_ROOT is deprecated! Use Rails.root instead." ActiveSupport::Deprecation.warn(msg, callstack) end end).new module Rails class Configuration def gem(*args) ActiveSupport::Deprecation.warn("config.gem has been deprecated in favor of the Gemfile.") end end end