Scripsit illa aut ille obert Klemme¥© <bob.news / gmx.net>:
> "Michael Garriss" <mgarriss / earthlink.net> schrieb im Newsbeitrag news:3F69D414.70008 / earthlink.net...
> > I would like to prevent some output that is going to stderr during a
> > call to a third party lib just during that call.  My first guess was:
> >
> > STDERR.close_write
> > ThirdPartyLib::call_some_annoying_function
> > STDERR.????
> >
> > I guess you can see my problem.  Can anyone give me a lead on this?
[...]
> $stderr = StringIO.new
> STDERR = $stderr

Are you sure it occupies file descriptor 2 (which external libraries
normally use)?

  def without_stderr(&block)
    save = $stderr.dup()
    $stderr.close() # this will affect STDERR, too.
    begin
      yield
    ensure
      $stderr = save.dup()
      # SIDE EFFECT: the file descriptor STDERR points to will be valid again
    end
  end

However, this routine assumes that all file descriptors before
$stderr are used. This is the case unless $stdin or $stdout have
been closed. Is there something like dup2() in Ruby?


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great poets.
                                   Josef 'Jupp' Schugt in japan.anime.evangelion