Gemfile

source "https://rubygems.org"

gemfile_deps.rb

require "bundler"
require "net/http"
require "openssl"
require "uri"

GEMS = %w{
  rails
  slimmer
  govuk_frontend_toolkit
  gds-sso
  govuk_admin_template
}

repos = %w{
  bouncer
  manuals-frontend
  specialist-publisher
  hmrc-manuals-api
  smart-answers
  calculators
  calendars
  mapit
  immenence
  contacts-frontend
  contacts-admin
  business-support-api
  business-support-finder
  transition
  trade-tariff-frontend
  trade-tariff-admin
  trade-tariff-api
  asset-manager
  content-store
  static
  whitehall
}

def lockfile_for(repo)
  uri = URI.parse("https://raw.githubusercontent.com/alphagov/#{repo}/master/Gemfile.lock")
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Get.new(uri.request_uri)

  response = http.request(request)
  response.body
end

def gem_statuses(repo)
  lockfile = Bundler::LockfileParser.new(lockfile_for(repo))

  Hash[lockfile.specs
    .select { |d| GEMS.include? d.name }
    .map { |s| [s.name, s.version.to_s] }]
end

puts "repo\t#{GEMS.join("\t")}"
repos.each do |repo|
  repo_gems = gem_statuses(repo)
  puts "#{repo}\t" + GEMS.map { |g| repo_gems[g] }.join("\t")
end