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#!%%PYTHON_CMD%%
#
# -*- encoding: utf-8 -*-

import os
import pickle
import stat

def traverse(path):

  for directory, dirnames, filenames in os.walk(path):

    if '.mmaDB' in filenames:

      mmaDB = os.path.join(directory, '.mmaDB')
      mmaDB = os.path.normpath(mmaDB)

      fixMMAdb(mmaDB)

def changePath(path):
  path_components = path.split('/')

  try:
    index = path_components.index('lib') + 1
  except ValueError:
    return path

  path_components[0:index] = []

  p = '/'.join(path_components)
  p = os.path.join('%%DATADIR%%/lib', p)

  return p

def fixMMAdb(fn):

  orig_filemode = os.stat(fn).st_mode

  os.chmod(fn, orig_filemode | stat.S_IWUSR)

  mmaDB = open(fn, 'r+b')
  mmaDB.readline() # skip header

  p = pickle.load(mmaDB)
  p = dict((changePath(k), v) for k, v in p.items())

  mmaDB.seek(0)
  # write header
  mmaDB.write(b'### mmaDB ... AUTOGENERATED BINARY DATA. DO NOT EDIT!!!\n')

  pickle.dump(p, mmaDB, pickle.HIGHEST_PROTOCOL)

  mmaDB.close()

  os.chmod(fn, orig_filemode)

if __name__ == '__main__':
  traverse('.')