Adds argparser for parsing CLI arguments

src/unisync/argparser.py

@@ -0,0 +1,22 @@
+# Copyright (C) 2025 Paul Retourné
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import argparse
+
+def create_argparser() -> argparse.ArgumentParser:
+    parser = argparse.ArgumentParser(
+            prog='unisync',
+            description='File synchronisation application',
+            epilog="""
+            Copyright © 2025 Paul Retourné.
+            License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>."""
+            )
+    parser.add_argument("local", nargs="?")
+    parser.add_argument("remote", nargs="?")
+
+    remote_addr_group = parser.add_mutually_exclusive_group()
+    remote_addr_group.add_argument("--ip")
+    remote_addr_group.add_argument("--hostname")
+
+    parser.add_argument("--config", help="Path to the configuration file", metavar="path_to_config")
+    return parser