#!/usr/bin/env ruby.exe APP_ROOT = File.expand_path('..', __dir__) Dir.chdir(APP_ROOT) do begin exec "yarnpkg", *ARGV rescue Errno::ENOENT $stderr.puts "Yarn executable was not detected in the system." $stderr.puts "Download Yarn at https://yarnpkg.com/en/docs/install" exit 1 end end