Rails - Sep 2007 - Rubyzip and java.util.zip.ZipFile interoperability issue

All,

Going out on a limb here but thought I would ask.

I am generating a ZIP file from a Rails app. with Rubyzip 0.9.1.  The
app. runs on a Mandrake Linux box which writes to a Windows filesystem
via a Samba mount.

Later, a Java program comes along and uses java.util.zip.ZipFile (JDK
1.5) to open this ZIP file.  Lately I''ve been seeing read exceptions on
these ZIP files.

Anyone ever seen a case where Java had a problem reading a Ruby
generated ZIP file before?

Granted I have lots of other moving parts here so...

Thanks,
Wes
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On 14 Sep 2007, at 00:37, Wes Gamble wrote:
> Going out on a limb here but thought I would ask.
>
> I am generating a ZIP file from a Rails app. with Rubyzip 0.9.1.  The
> app. runs on a Mandrake Linux box which writes to a Windows filesystem
> via a Samba mount.
>
> Later, a Java program comes along and uses java.util.zip.ZipFile (JDK
> 1.5) to open this ZIP file.  Lately I''ve been seeing read  
> exceptions on
> these ZIP files.
>
> Anyone ever seen a case where Java had a problem reading a Ruby
> generated ZIP file before?
>
> Granted I have lots of other moving parts here so...
IIRC, I had problems with ruby-zip in one of my apps too (i know i  
had to look for other option, but i can''t remember why), I just  
switched over to the shell with the zip and unzip command (just put  
everything in a temp folder, then zip it using the shell). Runs  
smoother and faster than ruby-zip.


Best regards

Peter De Berdt


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Peter,

I definitely considered that and am glad to hear that it worked.

As it turned out, I was creating and appending to the zip file directly 
on that remote SAMBA mount, so instead what I did was create the ZIP 
file locally, and then copied it to the remote SAMBA mount using 
FileUtils and that seems to work much better.

In fact, I had had the same issue with another part of that same app., 
and just hadn''t applied the fix across the board.

Thanks for the response.

Wes

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