CLI for http://pointfree.io

pointfree-cli.rb

#!/usr/bin/env ruby    
    
require 'json'    
require 'net/http'    
    
def success?(status_code)    
  status_code[0] == '2'    
end    
    
begin    
  code = ARGV.length < 1 ? ARGF.read : ARGV[0]    
    
  uri = URI("http://pointfree.io/snippet?code=#{URI.encode_www_form_component(code)}")    
    
  req = Net::HTTP::Get.new(uri)    
  req['Accept'] = 'application/json'    
    
  res = Net::HTTP.start(uri.hostname, uri.port) do |http|    
    http.request(req)    
  end    
    
  success?(res.code) or raise IOError.new("Received HTTP #{res.code}")    
    
  parsed = JSON.parse(res.body)    
    
  puts parsed['code']    
rescue StandardError => e    
  puts "Error: #{e.message}"    
end