From: Eric Hodel <drbrain@...7.net>
Date: 2008-04-23T13:57:13+09:00
Subject: Re: Zlib::GzipWriter - same code - different OS - different result.

On Apr 22, 2008, at 20:50 PM, denmat wrote:

> Hi List,
>
> I have ruby-1.8.6.114-1.fc7 and archive-tar-minitar (0.5.2).
>
> If I run this script on windowsXP (ruby1.8.6.26 archive-tar-minitar
> (0.5.2)) it completes without a problem
> def tar_and_gzip(destination, paths)
> Zlib::GzipWriter.new(File.open(destination, 'wb')) do |gzip|

Try:

open destination, 'wb' do |io|
   Zlib::GzipWriter.wrap io do |gzip|

>
>  begin
>    out = Archive::Tar::Minitar::Output.new(gzip)
>        paths.each do |f|
>          Find.find(f) do |files|
>                if FileTest.file?(files)
>                     Minitar.pack_file(files, out)
>                     $logger.info('tar_and_gzip') { "Packing file:
> #{files}" }
>                     Find.prune
>                elsif FileTest.directory?(files)
>                     Minitar.pack_file(files, out)
>                     $logger.info('tar_and_gzip') { "Packing
> directory: #{files}" }
>                else
>                     $logger.info('tar_and_gzip') { "Finished packing
> files." }
>                     Find.prune
>                end
>         end
>       end
>  ensure
>    gzip.finish  # same result with gzip.close

And remove this.

>  end
>  end
> end
>
>
> destination = '../buildspace'
> tar_me = [ "control", "postinst", "md5sum" ]
>
> tar_and_gzip("#{destination}/control.tar.gz", tar_me )
>
> (* only changes to above script on the different boxes is the file
> paths)
> Yet the same script on my linux box produces:
> zlib(finalizer): Zlib::GzipWriter object must be closed explicitly.
> zlib(finalizer): the stream was freed prematurely.
> zlib(finalizer): Zlib::GzipWriter object must be closed explicitly.
> zlib(finalizer): the stream was freed prematurely.
>
> Anyone seen this before or should I submit as a bug?
>
> denmat