From: Alan Davies <NOSPAMcs96and@...>
Date: 2003-09-19T01:34:54+09:00
Subject: Re: closing stderr

Robert Klemme wrote:

> "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?
>>
>>TIA,
>>Michael
>>
>>
> 
> 
> require 'StringIO'
> 
> oldStdErr = $stderr
> oldSTDERR = STDERR
> 
> $stderr = StringIO.new
> STDERR = $stderr
> 
> begin
>   # lib call
> ensure
>   $stderr = oldStdErr
>   STDERR = oldSTDERR
> end
> 
>     robert
> 

I did it like this on windows recently:

oldStderr = $stderr.dup
$stderr.reopen("NUL", 'w')

<do stuff>

$stderr.reopen(oldStderr)

Not sure if NUL works on linix/unix