Argument parsing.

entrypoint.py

@@ -10,3 +10,33 @@
 
 if __name__ == '__main__':
     logging.info('-- Parsing input --')
+
+    github_token = os.environ.get('INPUT_GITHUB_TOKEN')
+    supported_arch = os.environ.get('INPUT_REPO_SUPPORTED_ARCH')
+    supported_distro = os.environ.get('INPUT_REPO_SUPPORTED_DISTRO')
+
+    github_repo = os.environ.get('GITHUB_REPOSITORY')
+
+    apt_folder = os.environ.get('INPUT_REPO_DIRECTORY', 'apt')
+    update_folder = os.environ.get('INPUT_UPDATE_DIRECTORY', 'updates')
+
+    if None in (github_token, supported_arch, supported_distro):
+        logging.error('Required key is missing')
+        sys.exit(1)
+
+    supported_arch_list = supported_arch.strip().split('\n')
+    supported_distro_list = supported_distro.strip().split('\n')
+
+    logging.debug(github_token)
+    logging.debug(supported_arch_list)
+    logging.debug(supported_version_list)
+
+    key_public = os.environ.get('INPUT_PUBLIC_KEY')
+    key_private = os.environ.get('INPUT_PRIVATE_KEY')
+    key_passphrase = os.environ.get('INPUT_KEY_PASSPHRASE')
+
+    logging.debug(key_public)
+    logging.debug(key_private)
+    logging.debug(key_passphrase)
+
+    logging.info('-- Done parsing input --')