diff_upload.rb

require 'fileutils'

#前回upしたものと同じでなければupする

PATH = ""
NAME = File.basename(PATH)


TEMP_NAME = "#{NAME}.sum"
TEMP_DIR = ""
TEMP_PATH = TEMP_DIR + TEMP_NAME

def get_sum
	sum = `md5sum #{PATH}`
	sum = sum.split("\s\s")
	return sum[0]
end

def read_past_sum
	Dir.mkdir(TEMP_DIR) unless Dir.exist?(TEMP_DIR)
	FileUtils.touch(TEMP_PATH) unless File.exist?(TEMP_PATH)

	File.read(TEMP_PATH)
end

def write_sum
	File.open(TEMP_PATH,"w") do |f|
		f.print SUM
	end
end

SUM = get_sum
past_sum = read_past_sum

unless SUM == past_sum
	puts "uploading..."
	puts `dropbox_uploader.sh upload #{PATH} #{NAME}`
	write_sum
else
	puts "no diff"
end