md5 test

import hashlib
import glob
import os
import sys

def md5(filename):
    """ return a hash of file """
    hash_md5 = hashlib.md5()
    with open(filename, "rb") as file:
        for ped in iter(lambda: file.read(4096), b""):
            hash_md5.update(ped)
    return hash_md5.hexdigest()

def list_files():
    """ list files for compare after """
    mds = {}
    for f in glob.glob('*.sh'):
        mds[f] = md5(f)
    return mds

def create_changelog():
    """ create a changelog, default filaname: AndroidStudio-0.1.sh, name, version and ext """
    with open('CHANGELOG', 'w') as log:
        for fname in glob.glob('*.sh'):
            log.write("{NAME}{VERSION}/{HASH}\n" .format(NAME=fname[:fname.find('-'):], VERSION=fname[fname.find('-')::], HASH=md5(fname)))

def compare():
    """ compare md5 of files with changelog official :d """
    mds = list_files()
    if os.path.isfile('CHANGELOG'):
        with open('CHANGELOG') as log:
            lines = log.readlines()
            for l in lines:
                fname_current = l[:l.find('/'):]
                for key in mds:
                    if key in fname_current:
                        current_md5 = mds[key]
                        if current_md5 in l[l.find('/')+1::]:
                            return True
                        else:
                            return False
    else:
        sys.exit(0)

compare()