import os
import re

dirname = os.path.dirname(__file__)

files = os.listdir(dirname)
files_css = filter(lambda x: x.endswith(".css"), files)

for f in files_css:
    css = open(f, "r").read()
    matches = re.findall(r'url\(("(.*)")\)',  css)
    for match in matches:
        sprite_path = os.path.join(dirname, match[1])
        sprite64 = open(sprite_path, "rb").read().encode("base64")[:-1]
        css = css.replace(match[0], "data:image/png;base64," + sprite64)
        css = css.replace("\n", "")
    css64_file = open(f + "64", "w")
    css64_file.write(css)
    css64_file.close()