environment

# File lib/bundler/env.rb, line 100
    def self.environment
      out = []

      out << ["Bundler", Bundler::VERSION]
      out << ["  Platforms", Gem.platforms.join(", ")]
      out << ["Ruby", ruby_version]
      out << ["  Full Path", Gem.ruby]
      out << ["  Config Dir", Pathname.new(Gem::ConfigFile::SYSTEM_WIDE_CONFIG_FILE).dirname]
      out << ["RubyGems", Gem::VERSION]
      out << ["  Gem Home", ENV.fetch("GEM_HOME") { Gem.dir }]
      out << ["  Gem Path", ENV.fetch("GEM_PATH") { Gem.path.join(File::PATH_SEPARATOR) }]
      out << ["  User Path", Gem.user_dir]
      out << ["  Bin Dir", Gem.bindir]
      if defined?(OpenSSL)
        out << ["OpenSSL"]
        out << ["  Compiled", OpenSSL::OPENSSL_VERSION] if defined?(OpenSSL::OPENSSL_VERSION)
        out << ["  Loaded", OpenSSL::OPENSSL_LIBRARY_VERSION] if defined?(OpenSSL::OPENSSL_LIBRARY_VERSION)
        out << ["  Cert File", OpenSSL::X509::DEFAULT_CERT_FILE] if defined?(OpenSSL::X509::DEFAULT_CERT_FILE)
        out << ["  Cert Dir", OpenSSL::X509::DEFAULT_CERT_DIR] if defined?(OpenSSL::X509::DEFAULT_CERT_DIR)
      end
      out << ["Tools"]
      out << ["  Git", git_version]
      out << ["  RVM", ENV.fetch("rvm_version") { version_of("rvm") }]
      out << ["  rbenv", version_of("rbenv")]
      out << ["  chruby", chruby_version]

      ]rubygems-bundler open_gem].each do |name|
        specs = Bundler.rubygems.find_name(name)
        out << ["  #{name}", "(#{specs.map(&:version).join(",")})"] unless specs.empty?
      end
      if (exe = caller.last.split(":").first) && exe =~ %{(exe|bin)/bundler?\z}
        shebang = File.read(exe).lines.first
        shebang.sub!(/^#!\s*/, "")
        unless shebang.start_with?(Gem.ruby, "/usr/bin/env ruby")
          out << ["Gem.ruby", Gem.ruby]
          out << ["bundle #!", shebang]
        end
      end

      out
    end