Copy file recursive

copy.rb

require "fileutils"

source = File.expand_path "umeng_sdk_201312301505_fb_update_analytics/res"
dist   = File.expand_path "/Users/mac/Code/Android/Project/MMBaby/res"

puts source
puts dist
puts "=" * 20


def merge(source, dist)

	Dir.foreach(source) do |filename|
		next if (filename == ".") or (filename == "..")
		source_path =  source + "/" + filename
		dist_path   = dist + "/" + filename
		if Dir.exists?(source_path) # 原始资源路径是一个目录，那么在目标路径创建目录，并递归处理
			puts "Is a dir : " + source_path
			Dir.mkdir(dist_path) unless Dir.exists?(dist_path)
			merge(source_path, dist_path)
		else 
			if File.exists?(dist_path) #原始文件已存在，输出警告，不复制
				puts "Warning: #{dist_path} exists. not copy"
			else  # 原始文件不存在，拷贝，输出日志
				FileUtils.cp source_path, dist_path 
				puts "copy #{source_path} to #{dist_path}"
			end
		end
	end

end


merge(source, dist)