windscribe_version_check.py

# -*- coding: utf-8 -*-
"""
S1: https://www.crummy.com/software/BeautifulSoup/
S2: https://stackoverflow.com/questions/2610395/python-script-to-check-website-for-a-tag
"""

import os, time
from urllib.request import urlopen
from bs4 import BeautifulSoup

def soup_search(soup):
    for (index, value) in enumerate((x for x in str(soup).splitlines() if x != ""), start=1,):
        # ebynerate(###) removes all the empty lines, so that they shouldn't be part of the line count:
        # Specify the tag you want to find
        # If the tag is found, it will return `1`, else `-1`
        if value.find('<a href="https://windscribe.com">') != -1:
            print(f"Line: {index}.\t Found: '{value}' ")
            a1 = value.split(' </a>')
            a2 = a1[0].split('"> v')
            break
    return a2[1]

def main(webpage):
    page = urlopen(webpage)
    #soup = BeautifulSoup(page, "lxml")
    soup = BeautifulSoup(page, "html.parser")

    windscribe_version = soup_search(soup)

    #os.chdir(os.path.dirname(__file__))
    os.chdir('~/proyectos/python/')
    fn = 'windscribe_current_version.txt'
    if os.path.exists('windscribe_current_version.txt'):
        with open(fn, 'r') as f1:
            current_version = f1.read().rstrip('\n')
    else:
        with open(fn, 'w') as f1:
            f1.write(f'{windscribe_version}')
        print('windscribe_current_version.txt updated')
        current_version = windscribe_version

    if windscribe_version != current_version:
        os.system(f'notify-send "Windscribe updated from {current_version} to {windscribe_version}" --app-name="Windscribe Version Check" -t 3000')
        with open(fn, 'w') as f1:
            f1.write(f'{windscribe_version}')
        print('windscribe_current_version.txt updated')
        os.chdir('~/')
        with open('NEW_WINDSCRIBE_VERSION_FOUND', 'w') as f1:
            f1.write('aaa')
    else: print('no new version found')

if __name__ == '__main__':
    time.sleep(30)
    main("https://windscribe.com/changelog/linux")
    os.system(f'notify-send "done checking windscribe version" --app-name="Windscribe Version Check"')