bin/yarn

   1 #!/usr/bin/env ruby
   2 APP_ROOT = File.expand_path("..", __dir__)
   3 Dir.chdir(APP_ROOT) do
   4   yarn = ENV["PATH"].split(File::PATH_SEPARATOR)
   5                     .reject { |dir| File.expand_path(dir) == __dir__ }
   6                     .product(["yarnpkg", "yarn", "yarn.cmd", "yarn.ps1"])
   7                     .map { |dir, file| File.expand_path(file, dir) }
   8                     .find { |file| File.executable?(file) }
   9
  10   if yarn
  11     exec yarn, *ARGV
  12   else
  13     warn "Yarn executable was not detected in the system."
  14     warn "Download Yarn at https://yarnpkg.com/en/docs/install"
  15     exit 1
  16   end
  17 end