Add number of errors

import argparse

import collections

import functools

import glob

import hashlib

import logging

import validation_helpers as vh

NUMBER_OF_ERRORS = 0

def incr_error(func):

    """Wrapper to count the number of errors"""

    @functools.wraps(func)

    def wrapper(*args, **kwargs):

        global NUMBER_OF_ERRORS

        NUMBER_OF_ERRORS += 1

        return func(*args, **kwargs)

    return wrapper

logging.error = incr_error(logging.error)

class MarkdownValidator(object):

    """Base class for Markdown validation

    if all_valid is True:

        logging.debug("All Markdown files successfully passed validation.")

        sys.exit(0)

    else:

        logging.warning(

            "Some errors were encountered during validation. "

            "See log for details.")

        sys.exit(1)

            "{0} errors were encountered during validation. "

            "See log for details.".format(NUMBER_OF_ERRORS))

    sys.exit(NUMBER_OF_ERRORS)

if __name__ == "__main__":