run

# File lib/rubygems/ext/builder.rb, line 63
  def self.run(command, results, command_name = nil)
    verbose = Gem.configuration.really_verbose

    begin
      rubygems_gemdeps, ENV['RUBYGEMS_GEMDEPS'] = ENV['RUBYGEMS_GEMDEPS'], nil
      if verbose
        puts("current directory: #{Dir.pwd}")
        p(command)
      end
      results << "current directory: #{Dir.pwd}"
      results << (command.respond_to?(:shelljoin) ? command.shelljoin : command)

      redirections = verbose ? {} : {err: [:child, :out]}
      IO.popen(command, "r", redirections) do |io|
        if verbose
          IO.copy_stream(io, $stdout)
        else
          results << io.read
        end
      end
    rescue => error
      raise Gem::InstallError, "#{command_name || class_name} failed#{error.message}"
    ensure
      ENV['RUBYGEMS_GEMDEPS'] = rubygems_gemdeps
    end

    unless $?.success?
      results << "Building has failed. See above output for more information on the failure." if verbose

      exit_reason =
        if $?.exited?
          ", exit code #{$?.exitstatus}"
        elsif $?.signaled?
          ", uncaught signal #{$?.termsig}"
        end

      raise Gem::InstallError, "#{command_name || class_name} failed#{exit_reason}"
    end
  end