# -*- coding: utf-8 -*-

import datetime as dt

import os

import re

import zipfile

def mkdir(path):

if not os.path.exists(path):

os.makedirs(path)

def read(path, loader=None, binary_file=False):

open_mode = 'rb' if binary_file else 'r'

with open(path, mode=open_mode) as fh:

if not loader:

return fh.read()

return loader(fh.read())

def archive(src, dest, filename):

output = os.path.join(dest, filename)

zfh = zipfile.ZipFile(output, 'w', zipfile.ZIP_DEFLATED)

for root, _, files in os.walk(src):

for file in files:

zfh.write(os.path.join(root, file))

zfh.close()

return os.path.join(dest, filename)

def timestamp(fmt='%Y-%m-%d-%H%M%S'):

now = dt.datetime.utcnow()

return now.strftime(fmt)

def get_environment_variable_value(val):

env_val = val

if val is not None and isinstance(val, str):

match = re.search(r'^\${(?P<environment_key_name>\w+)*}$', val)

if match is not None:

env_val = os.environ.get(match.group('environment_key_name'))

return env_val