Create initial Python project files

nton/main.py

@@ -0,0 +1,25 @@
+import logging
+from datetime import datetime
+
+import click as click
+
+from nton import __version__
+
+
+@click.group(invoke_without_command=True)
+@click.option("-v", "--version", is_flag=True, default=False, help="Print version information.")
+@click.option("-d", "--debug", is_flag=True, default=False, help="Enable DEBUG level logs.")
+def main(version: bool, debug: bool) -> None:
+    """nton—Nintendo Switch NRO to NSP Forwarder."""
+    logging.basicConfig(level=logging.DEBUG if debug else logging.INFO)
+    log = logging.getLogger()
+
+    copyright_years = 2022
+    current_year = datetime.now().year
+    if copyright_years != current_year:
+        copyright_years = f"{copyright_years}-{current_year}"
+
+    log.info("nton version %s Copyright (c) %s rlaphoenix", __version__, copyright_years)
+    log.info("https://github.com/rlaphoenix/nton")
+    if version:
+        return