Small CLI tool to tell you if GitHub is online

is_github_down.rb

require 'net/http'

def warning_message
  puts <<~HEREDOC
  Usage:

    $ is_github_down

    🦄  It's down. Go outside!
  HEREDOC

  exit
end

def up?(url)
  uri = URI.parse(url)

  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true if uri.scheme == 'https'
  http.read_timeout = 5
  http.open_timeout = 5

  response = http.head('/')
  response.code == '200'
rescue Timeout::Error, SocketError
  false
end

puts warning_message if ARGV.any?

if up?('https://github.com')
  puts "\n 🐈  It's up. Go back to work!"
else
  puts "\n🦄  It's down. Go outside!"
end