From: celldee <celldee@...>
Date: 2008-03-11T01:46:21+09:00
Subject: Re: Getting files out of a .tar.gz archive

Hi Todd,

I've tried to use Zlib::GzipReader, but that just gives me a
continuous stream of text or a series of strings that do not resemble
the actual file structure, unless I've missed something.

Thanks,

Chris
http://smuby.org

On Mar 10, 3:19 pm, "Todd Benson" <caduce...@gmail.com> wrote:
> On Mon, Mar 10, 2008 at 9:09 AM, celldee <cell...@gmail.com> wrote:
> > Hi,
>
> >  I have a .tar.gz file containing some xml files. I need to locate
> >  particular files in the archive and process them. I'm looking for a
> >  pure Ruby way to do this without resorting to external system
> >  commands.
>
> >  I found Archive::Tar::Minitar that allows me to process my files once
> >  I have expanded the .tar.gz file to a .tar file. So I can do this :-
>
> >  open(@tarfile, "rb") do |f|
> >   Archive::Tar::Minitar::Reader.open(f).each do |entry|
> >     fpl = StringIO.new( entry.read) if entry.name =~ /
> >  #{@date}#{channel}_pl/
> >     fpi = StringIO.new( entry.read) if entry.name =~ /
> >  #{@date}#{channel}_pi/
> >   end
> >  end
>
> >  However, in order to get a tar file, I have to call gunzip to expand
> >  my .tar.gz file. Does anybody know of a way for me to replace the
> >  gunzip call with a Ruby library call of some sort? Or does anyone have
> >  suggestions for an alternative way to do this?
>
> >  Cheers,
>
> >  Chris
>
> There's Zlib::Gzip* classes.  I've never used them, though.
>
> Todd