From: Nicholas Wieland <ngw@...>
Date: 2011-03-09T20:30:27+09:00
Subject: Most simple usage of zlib or pr-zlib

HI *, I'm trying to unzip a file programmatically, and having lots of 
difficulties.

ruby-1.9.2-p136 :009 > data = StringIO.new( open( 'test.zip', 'r' ).read )
 => #<StringIO:0x00000100c4c8a8>
ruby-1.9.2-p136 :010 > Zlib::GzipReader.new(data).read
Zlib::GzipFile::Error: not in gzip format

This is with both zlib in stdlib and pr-zlib from github.
What's strange is that the file seems in the right format:

[ngw@slicingupeyeballs:~]$ file test.zip
test.zip: Zip archive data, at least v1.0 to extract

What I need is a supersimple solution to extract a zip file and retain 
the same directory structure, no more no less :)

Someone worked on something like this before ?

  ngw