def rails5? !%w[0 false].include?(ENV["RAILS5"]) end require 'rubygems' unless rails5? gemfile = rails5? ? "Gemfile" : "Gemfile.rails4" ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../#{gemfile}", __dir__) # Set up gems listed in the Gemfile. require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE']) begin require 'bootsnap/setup' rescue LoadError # bootsnap is an optional dependency, so if we don't have it, it's fine end