A quick way to validate current state of official builds / release deployments

check-release.rb

#!/usr/bin/env ruby

require 'fileutils'
require 'rexml/document'
require 'json'
require 'date'

class VersionInfo
  attr_accessor :version
  attr_accessor :date

  def initialize(version, date)
    @version = version
    @date = date.is_a?(String) ? DateTime.parse(date).to_time : date
  end

  def inspect
    r = "#{version}"
    r << " on #{date.strftime('%Y-%m-%d %H:%M')}" if date
    r
  end
end

class ReleaseStatusReporter
  CACHE_DIR = 'cache'

  def download(url, id = nil)
    FileUtils::mkdir_p(CACHE_DIR)

    if id.nil?
      id = url.tr('/:', '_')
    end

    target_file = "#{CACHE_DIR}/#{id}"
    unless File.exists?(target_file)
      system("curl -s #{url} --output #{CACHE_DIR}/#{id}")
    end

    File.read(target_file)
  end

  def get_json(url)
    JSON.load(download(url))
  end

  def get_xml(url)
    REXML::Document.new(download(url))
  end

  def info_on_bintray(org_name, repo_name, package_name)
    q = get_json("https://api.bintray.com/packages/#{org_name}/#{repo_name}/#{package_name}")
    VersionInfo.new(q['latest_version'], q['updated'])
  end

  def info_on_npmjs(package_name)
    q = get_json("http://registry.npmjs.org/#{package_name}")
    version = q['dist-tags']['latest']
    VersionInfo.new(version, q['time'][version])
  end

  def info_on_maven(path)
    q = get_xml("https://repo1.maven.org/maven2/#{path}/maven-metadata.xml").root
    VersionInfo.new(q.elements["versioning/release"].text, DateTime.parse(q.elements['versioning/lastUpdated'].text).to_time)
  end

  def info_on_nuget(package_name)
    q = get_xml("https://www.nuget.org/packages/#{package_name}/atom.xml").root

    id = q.elements["entry[1]/id"].text
    # https://www.nuget.org/packages/KaitaiStruct.Runtime.CSharp/0.9.0
    version = id.split(/\//).last

    VersionInfo.new(version, q.elements["entry[1]/published"].text)
  end

  def info_on_pypi(package_name)
    q = get_xml('https://pypi.org/rss/project/kaitaistruct/releases.xml').root
    VersionInfo.new(q.elements["channel/item[1]/title"].text, q.elements["channel/item[1]/pubDate"].text)
  end

  def info_on_rubygems(package_name)
    q = get_json('https://rubygems.org/api/v1/gems/kaitai-struct.json')
    VersionInfo.new(q['version'], q['date'])
  end

  def info_on_webide_compiler
    s = download("https://ide.kaitai.io/lib/_npm/kaitai-struct-compiler/kaitai-struct-compiler.js")
    return nil unless s =~ /^\$c_Lio_kaitai_struct_Version\$\.prototype\.init___ = \(function\(\) \{(.*?)\}/m
    body = $1

    version = nil
    version = $1 if body =~ /this.version\$1 = "(.*?)";/

    date = nil
    date = $1 if body =~ /this.gitTime\$1 = "(.*?)";/

    VersionInfo.new(version, date)
  end

  def report
    puts "### Compiler"
    puts

    print "* Debian package at BinTray - "
    p info_on_bintray('kaitai-io', 'debian', 'kaitai-struct-compiler')
    print "* Universal package at BinTray - "
    p info_on_bintray('kaitai-io', 'universal', 'kaitai-struct-compiler')
    print "* Java library at Maven - "
    p info_on_maven('io/kaitai/kaitai-struct-compiler_2.12')
    print "* JavaScript library at Maven - "
    p info_on_maven('io/kaitai/kaitai-struct-compiler-js_sjs0.6_2.12')
    print "* JavaScript library at npmjs - "
    p info_on_npmjs('kaitai-struct-compiler')

    puts
    puts "### Runtimes"
    puts

    print "* C# at NuGet.org - "
    p info_on_nuget('KaitaiStruct.Runtime.CSharp')
    print "* Java at Maven - "
    p info_on_maven('io/kaitai/kaitai-struct-runtime')
    print "* JavaScript at npmjs - "
    p info_on_npmjs('kaitai-struct')
    print "* Python at PyPI - "
    p info_on_pypi('kaitaistruct')
    print "* Ruby at RubyGems - "
    p info_on_rubygems('kaitai-struct')

    puts
    puts "### Web"
    puts

    print "* WebIDE compiler - "
    p info_on_webide_compiler
  end
end

r = ReleaseStatusReporter.new
r.report