namespace :webpacker do

desc "Support for older Rails versions. Install all JavaScript dependencies as specified via Yarn"
task :yarn_install do
  valid_node_envs = %w[test development production]
  node_env = ENV.fetch("NODE_ENV") do
    valid_node_envs.include?(Rails.env) ? Rails.env : "production"
  end
  yarn_flags =
    if `yarn --version`.start_with?("1")
      "--no-progress --frozen-lockfile"
    else
      "--immutable"
    end
  system({ "NODE_ENV" => node_env }, "yarn install #{yarn_flags}")
end

end