adding version option

tembo/__init__.py

@@ -3,6 +3,8 @@ import os
 import panaetius
 from panaetius.exceptions import LoggingDirectoryDoesNotExistException
 
+__version__ = "0.1.0"
+
 if (config_path := os.environ.get("TEMBO_CONFIG")) is not None:
     CONFIG = panaetius.Config("tembo", config_path)
 else:

tembo/cli.py

@@ -8,6 +8,13 @@ CONTEXT_SETTINGS = dict(help_option_names=["-h", "--help"])
 
 
 @click.group(context_settings=CONTEXT_SETTINGS, options_metavar="<options>")
+@click.version_option(
+    tembo.__version__,
+    "-v",
+    "--version",
+    prog_name="Tembo",
+    message=f"Tembo v{tembo.__version__} 🐘",
+)
 def run():
     """
     Tembo - an organiser for work notes.