ADM-ZIP for NodeJS

ADM-ZIP is a pure JavaScript implementation for zip data compression for NodeJS.

Forked Repo

This fork implement some of the pull requests ignored in the original repo. Most notably it solved some issues with zipping binary files.

Installation

With npm do:

$ npm install adm-zip

What is it good for?

The library allows you to:

decompress zip files directly to disk or in memory buffers
compress files and store them to disk in .zip format or in compressed buffers
update content of/add new/delete files from an existing .zip

Dependencies

There are no other nodeJS libraries that ADM-ZIP is dependent of

Examples

Basic usage

	var AdmZip = require('adm-zip');

	// reading archives
	var zip = new AdmZip("./my_file.zip");
	var zipEntries = zip.getEntries(); // an array of ZipEntry records

	zipEntries.forEach(function(zipEntry) {
	    console.log(zipEntry.toString()); // outputs zip entries information
		if (zipEntry.entryName == "my_file.txt") {
		     console.log(zipEntry.data.toString('utf8')); 
		}
	});
	// outputs the content of some_folder/my_file.txt
	console.log(zip.readAsText("some_folder/my_file.txt")); 
	// extracts the specified file to the specified location
	zip.extractEntryTo(/*entry name*/"some_folder/my_file.txt", /*target path*/"/home/me/tempfolder", /*maintainEntryPath*/false, /*overwrite*/true);
	// extracts everything
	zip.extractAllTo(/*target path*/"/home/me/zipcontent/", /*overwrite*/true);
	
	
	// creating archives
	var zip = new AdmZip();
	
	// add file directly
	zip.addFile("test.txt", new Buffer("inner content of the file"), "entry comment goes here");
	// add local file
	zip.addLocalFile("/home/me/some_picture.png");
	// get everything as a buffer
	var willSendthis = zip.toBuffer();
	// or write everything to disk
	zip.writeZip(/*target file name*/"/home/me/files.zip");
	
	
	// ... more examples in the wiki

For more detailed information please check out the wiki.