download.rb

require 'open-uri'
require 'json'
require 'parallel'

packages = File.read('01.most-dependent-upon.md').scan(/\[([\w-]+)\]/m).to_a.map(&:first)

Parallel.each(packages) do |package|
  begin
    parsed = JSON.parse(open('https://registry.npmjs.org/' + package).read)
    url = URI.parse(parsed['repository']['url'])
    if url.host == 'github.com'
      path = url.path.gsub(/.git$/, '')
      manifest = 'https://raw.githubusercontent.com'+path+'/master/package.json'
      puts manifest
        File.write('packages/' + package + '.json', open(manifest).read)
    end
  rescue
    puts "FAILED"
  end
end