class Rspec::Core::Runner

def self.autorun
  return if installed_at_exit?
  @installed_at_exit = true
  at_exit { new.run(ARGV) ? exit(0) : exit(1) } 
end

def self.installed_at_exit?
  @installed_at_exit ||= false
end

def configuration
  Rspec.configuration
end

def reporter
  configuration.formatter
end

def require_all_files(configuration)
  configuration.files_to_run.map {|f| require f }
end

def run(args = [])
  Rspec::Core::CommandLineOptions.parse(args).apply(configuration)
  require_all_files(configuration)
  
  total_examples_to_run = Rspec::Core.world.total_examples_to_run
  old_sync, reporter.output.sync = reporter.output.sync, true if reporter.output.respond_to?(:sync=)
  suite_success = true
  reporter_supports_sync = reporter.output.respond_to?(:sync=)
  old_sync, reporter.output.sync = reporter.output.sync, true if reporter_supports_sync
  reporter.start(total_examples_to_run) # start the clock
  start = Time.now
  Rspec::Core.world.example_groups_to_run.each do |example_group|
    suite_success &= example_group.run(reporter)
  end
  reporter.start_dump(Time.now - start)
  reporter.dump_failures
  reporter.dump_summary
  reporter.dump_pending
  reporter.close
  reporter.output.sync = old_sync if reporter_supports_sync
  suite_success
end