From: ahoward <ahoward@...>
Date: 2002-11-10T01:40:47+09:00
Subject: Re: help - redirect/flush/sync problem

On Sat, 9 Nov 2002, ts wrote:

>  This raises an exception and you don't catch it. Consequence the error
>  message is printed in 'stderr' when ruby exit (i.e. it don't execute the
>  lines after the error)

nope.

#!/usr/bin/env ruby

begin
  $stderr.reopen File.open 'stderr', 'w'
  $stderr.sync = true

  foo                 # this raises an exception...

ensure
  $stderr.flush

  puts IO.readlines 'stderr', 'r'
  puts __FILE__
end


this outputs only 'foo.rb'

eli > ruby foo.rb
foo.rb


eli > cat stderr
foo.rb:9: undefined local variable or method `foo' for #<Object:0x401dbce0> (NameError)

so the file IS created... this is *really* bizare....

is it a bug in ruby?

here is another hint : if i also do $stderr.close after $stderr.flush, the file
is not even created!

-a



-- 

 ====================================
 | Ara Howard
 | NOAA Forecast Systems Laboratory
 | Information and Technology Services
 | Data Systems Group
 | R/FST 325 Broadway
 | Boulder, CO 80305-3328
 | Email: ahoward@fsl.noaa.gov
 | Phone:  303-497-7238
 | Fax:    303-497-7259
 ====================================