slpkg/slpkg/check_updates.py
2023-03-05 21:20:58 +02:00

75 lines
2.3 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import os
import urllib3
from pathlib import Path
from multiprocessing import Process
from slpkg.configs import Configs
from slpkg.progress_bar import ProgressBar
class CheckUpdates(Configs):
""" Check for changes in the ChangeLog file. """
def __init__(self):
super(Configs, self).__init__()
self.progress = ProgressBar()
self.color = self.colour()
self.green: str = self.color['green']
self.yellow: str = self.color['yellow']
self.endc: str = self.color['endc']
self.changelog_txt: str = self.sbo_chglog_txt
self.local_chg_txt = Path(self.sbo_repo_path, self.changelog_txt)
self.repo_chg_txt: str = f'{self.sbo_repo_url}{self.changelog_txt}'
def check(self) -> bool:
""" Checks the ChangeLogs and returns True or False. """
local_date: int = 0
if self.ponce_repo:
self.changelog_txt: str = self.ponce_chglog_txt
self.local_chg_txt = Path(self.ponce_repo_path, self.changelog_txt)
self.repo_chg_txt: str = f'{self.ponce_repo_url}{self.changelog_txt}'
http = urllib3.PoolManager()
repo = http.request('GET', self.repo_chg_txt)
if self.local_chg_txt.is_file():
local_date = int(os.stat(self.local_chg_txt).st_size)
repo_date: int = int(repo.headers['Content-Length'])
return repo_date != local_date
def view_message(self) -> None:
if self.check():
print(f'\n\n{self.endc}There are new updates available!')
else:
print(f'\n\n{self.endc}No updated packages since the last check.')
def updates(self) -> None:
""" Starting multiprocessing download process. """
message: str = f'Checking for news in the {self.changelog_txt} file...'
# Starting multiprocessing
p1 = Process(target=self.view_message)
p2 = Process(target=self.progress.bar, args=(message, ''))
p1.start()
p2.start()
# Wait until process 1 finish
p1.join()
# Terminate process 2 if process 1 finished
if not p1.is_alive():
p2.terminate()
# Wait until process 2 finish
p2.join()
# Restore the terminal cursor
print('\x1b[?25h', self.endc)