apk2jar.rb

# encoding: UTF-8


# A script help to convert Android Application APK file to Jar file
# You need to install dex2jar https://code.google.com/p/dex2jar/ and replace the DEX2JAR constant to your dex2jar.sh path

# TODO: 
# - add apktool 
# - create a better command line prompt

# USAGE：
#   cp the script to your apk file path
#   ruby apk2jar.rb 

# creator: Lin Xiangyu
# e-mail:  lxyweb@gmail.com


require "fileutils"
require "Shellwords"



DEX2JAR = "~/program/dex2jar-0.0.9.13/dex2jar.sh "

def escape(str)
	Shellwords.escape(str)
end

def path(str)
	File.expand_path str
end

def unzip(path)
	`unzip #{escape(path)}`
end


def apk2jar(file)
	if file.end_with?(".apk")
		puts file
		unzip file
		system(DEX2JAR + "classes.dex")
		jar_name = file[0..-4] + "jar"
		FileUtils.mv("classes_dex2jar.jar", jar_name)
		path(jar_name)
		FileUtils.rm ("classes.dex")
	end
end


Dir.foreach(".") do |file|
	apk2jar file
end