Backup EPUB files in iBooks Library

iBooksEpubBackup.py

#!/usr/bin/python

import os
import sys
import zipfile
import getopt
from biplist import readPlist


book_path = os.path.join(os.path.expanduser("~"), 
    "Library/Containers/com.apple.BKAgentService/Data/Documents/iBooks/Books/")
export_path = os.getcwd()


try:
    opts, args = getopt.getopt(sys.argv[1:], "i:o:")
except getopt.GetoptError as e:
    print str(e)
    sys.exit(2)

for opt, arg in opts:
    if opt == '-i':
        book_path = arg
    elif opt == '-o':
        export_path = arg

if ( not os.path.isdir(book_path) or not os.path.isdir(export_path)):
    sys.exit(1)

epub_dir = [ os.path.join(book_path, i) for i in os.walk(book_path).next()[1] ]

for d in epub_dir:
    bp = readPlist(os.path.join(d, 'iTunesMetadata.plist'))
    epub_zip_name = "%s.epub" % bp['itemName']
    print "processing {0}".format(epub_zip_name.encode('utf8'))

    zipf = zipfile.ZipFile(os.path.join(export_path, epub_zip_name), 'w')
    for root, dirs, files in os.walk(d):
        for f in files:
            filename = os.path.join(root, f)
            # relative file path for zip archive.
            if root == d:
                arcname = f
            else:
                arcname = os.path.relpath(filename, d)
            zipf.write(filename, arcname)