Added check updates file

Signed-off-by: Dimitris Zlatanidis <d.zlatanidis@gmail.com>

slpkg/check_updates.py

@@ -0,0 +1,32 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+
+import urllib3
+from dataclasses import dataclass
+
+from slpkg.configs import Configs
+
+
+@dataclass
+class CheckUpdates:
+    sbo_repo_url: str = Configs.sbo_repo_url
+    sbo_repo_path: str = Configs.sbo_repo_path
+    chglog_txt: str = Configs.chglog_txt
+
+    def updates(self):
+
+        local_chg_txt = f'{self.sbo_repo_path}/{self.chglog_txt}'
+
+        with open(local_chg_txt, 'r', encoding='utf-8') as f:
+            local_date = f.readline().strip()
+
+        http = urllib3.PoolManager()
+        repo = http.request(
+            'GET', f'{self.sbo_repo_url}/{self.chglog_txt}')
+
+        repo_date = repo.data.decode().split('\\')[0][:len(local_date)]
+        if repo_date > local_date:
+            print('\nThere are new updates available.\n')
+        else:
+            print('\nNo updated packages since the last check.\n')