class Bundler::CLI::Outdated

def initialize(options, gems)
  @options = options
  @gems = gems
end

def run
  sources = Array(options[:source])
  gems.each do |gem_name|
    Bundler::CLI::Common.select_spec(gem_name)
  end
  Bundler.definition.validate_ruby!
  current_specs = Bundler.ui.silence { Bundler.load.specs }
  current_dependencies = {}
  Bundler.ui.silence { Bundler.load.dependencies.each { |dep| current_dependencies[dep.name] = dep } }
  if gems.empty? && sources.empty?
    # We're doing a full update
    definition = Bundler.definition(true)
  else
    definition = Bundler.definition(:gems => gems, :sources => sources)
  end
  options["local"] ? definition.resolve_with_cache! : definition.resolve_remotely!
  Bundler.ui.info ""
  out_count = 0
  # Loop through the current specs
  gemfile_specs, dependency_specs = current_specs.partition { |spec| current_dependencies.has_key? spec.name }
  [gemfile_specs.sort_by(&:name), dependency_specs.sort_by(&:name)].flatten.each do |current_spec|
    next if !gems.empty? && !gems.include?(current_spec.name)
    dependency = current_dependencies[current_spec.name]
    if options["strict"]
      active_spec =  definition.specs.detect { |spec| spec.name == current_spec.name }
    else
      active_spec = definition.index[current_spec.name].sort_by { |b| b.version }
      if !current_spec.version.prerelease? && !options[:pre] && active_spec.size > 1
        active_spec = active_spec.delete_if { |b| b.respond_to?(:version) && b.version.prerelease? }
      end
      active_spec = active_spec.last
    end
    next if active_spec.nil?
    gem_outdated = Gem::Version.new(active_spec.version) > Gem::Version.new(current_spec.version)
    git_outdated = current_spec.git_version != active_spec.git_version
    if gem_outdated || git_outdated
      if out_count == 0
        if options["pre"]
          Bundler.ui.info "Outdated gems included in the bundle (including pre-releases):"
        else
          Bundler.ui.info "Outdated gems included in the bundle:"
        end
      end
      spec_version    = "#{active_spec.version}#{active_spec.git_version}"
      current_version = "#{current_spec.version}#{current_spec.git_version}"
      dependency_version = %|Gemfile specifies "#{dependency.requirement}"| if dependency && dependency.specific?
      Bundler.ui.info "  * #{active_spec.name} (#{spec_version} > #{current_version}) #{dependency_version}".rstrip
      out_count += 1
    end
    Bundler.ui.debug "from #{active_spec.loaded_from}"
  end
  if out_count.zero?
    Bundler.ui.info "Bundle up to date!\n"
  else
    exit 1
  end
end