Reading .jar files

ruby-talk
1

How can I read the entries in a Java .jar file from Ruby?

I tried the standard library Zlib, but that doesn't work ... I think because .jar files use the zip format instead of the gzip format.

I tried the rubyzip library at http://rubyzip.sourceforge.net/. For some reason that didn't get to all the entries in the file, only "META-INF/" and "META-INF/MANIFEST.MF".

2

Perhaps you should simply call the jar program, or unzip, instead of
trying to read the file directly.

Mike

ยทยทยท

On 12/28/06, Mark Volkmann <r.mark.volkmann@gmail.com> wrote:

How can I read the entries in a Java .jar file from Ruby?

I tried the standard library Zlib, but that doesn't work ... I think
because .jar files use the zip format instead of the gzip format.

I tried the rubyzip library at http://rubyzip.sourceforge.net/\. For
some reason that didn't get to all the entries in the file, only
"META-INF/" and "META-INF/MANIFEST.MF".

--
Michael P. Soulier <msoulier@digitaltorque.ca>
"Any intelligent fool can make things bigger and more complex... It takes a
touch of genius - and a lot of courage to move in the opposite direction."
--Albert Einstein

3

Mark Volkmann wrote:

How can I read the entries in a Java .jar file from Ruby?

I tried the standard library Zlib, but that doesn't work ... I think because .jar files use the zip format instead of the gzip format.

I tried the rubyzip library at http://rubyzip.sourceforge.net/\. For some reason that didn't get to all the entries in the file, only "META-INF/" and "META-INF/MANIFEST.MF".

rubyzip should be able to read the jar file. Can you send me a .jar file that is causing you problems.

Best regards,

Thomas Sondergaard