Class Gem::Commands::CheckCommand < Gem::Command

# File ../ruby/lib/rubygems/commands/check_command.rb, line 9
def initialize
  super 'check', 'Check installed gems',
        :verify => false, :alien => false

  add_option(      '--verify FILE',
             'Verify gem file against its internal',
             'checksum') do |value, options|
    options[:verify] = value
  end

  add_option('-a', '--alien', "Report 'unmanaged' or rogue files in the",
             "gem repository") do |value, options|
    options[:alien] = true
  end

  add_version_option 'check'
end

# File ../ruby/lib/rubygems/commands/check_command.rb, line 27
def execute
  if options[:alien]
    say "Performing the 'alien' operation"
    say
    gems = get_all_gem_names rescue []
    Gem::Validator.new.alien(gems).sort.each do |key, val|
      unless val.empty? then
        say "#{key} has #{val.size} problems"
        val.each do |error_entry|
          say "  #{error_entry.path}:"
          say "    #{error_entry.problem}"
        end
      else
        say "#{key} is error-free" if Gem.configuration.verbose
      end
      say
    end
  end

  if options[:verify]
    gem_name = options[:verify]
    unless gem_name
      alert_error "Must specify a .gem file with --verify NAME"
      return
    end
    unless File.exist?(gem_name)
      alert_error "Unknown file: #{gem_name}."
      return
    end
    say "Verifying gem: '#{gem_name}'"
    begin
      Gem::Validator.new.verify_gem_file(gem_name)
    rescue Exception
      alert_error "#{gem_name} is invalid."
    end
  end
end