I'm trying to do something which I'm sure is pretty simple, using Archive::Zip.

When you install a new FireFox, it has the default size of the history menu set to ten, which I like to change to something like 30 or 40.

To do this I grab a file called "browser.jar", unzip it, open "content/browser/browser.js" from the resulting folder, edit it, put it back, and zip it up again.

I spent about an hour last night trying to automate that with perl and Archive::Zip and gave up in frustration.

I guess maybe I don't understand Zip files? Should I be trying to extract a "member" file from "browser.jar"? Or using extractTree() because the file has a zipped directory structure? I don't understand the point of the "root" option in extractTree(), and when I try to extract the file 'content/browser/browser.js' directly from the Zip file, I get an error.

Here's what I want in pseudocode: 

open '/path/to/browser.jar';
extract '/path/to/one/file/browser.js';
## edit the file -- this bit I can do!
put back '/path/to/one/file/browser.js';
close '/path/to/browser.jar';

[download]

($_='kkvvttuu bbooppuuiiffss qqffssmm iibbddllffss')
=~y~b-v~a-z~s; print

In reply to Explain Archive::Zip to me please? by Cody Pendant

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