Sending files made by `jar xf` to another directory

Question

I have a JAR with a bunch of configs. I'd like to send them to the correct directory without cd'ing there.

Something like jar xf config.jar --MAGIC-PARAM PATH/TO/DIRECTORY

Is there such a thing? If it helps, this will be called by a Buildr extension (Ruby).

Answer 1

From the API documentation: http://buildr.apache.org/rdoc/classes/Buildr/Unzip.html

  unzip(dir => zip_file).target.invoke

Answer 2

Alex's answer is good. If there's some special magic that jar xf does that makes you prefer it to unzipping (I'm not aware of any), here's another option:

FileUtils.cd('PATH/TO/DIRECTORY') do
  system("jar xf '#{_('config.jar')'")
end

It does involve cd'ing, but when you use cd with a block, the original directory is restored after the block. You will need to use either an absolute path or a path relative to the directory you changed to; I'm using buildr's _ method to get an absolute path for a project-relative file.