add --version option

goat_monitor/__init__.py

@@ -0,0 +1 @@
+__version__ = "v0.0.0"

goat_monitor/goat_monitor.py

@@ -1,5 +1,6 @@
 # %% imports
 import subprocess
+import sys
 from pathlib import Path
 from typing import List
 
@@ -8,7 +9,7 @@ import gotify
 import numpy as np
 import toml
 
-__version__ = "v0.0.0"
+from goat_monitor import __version__
 
 
 # %% commands
@@ -26,9 +27,19 @@ __version__ = "v0.0.0"
     type=int,
     help="Number of times to try re-running failed command. -1 to retry indefinitely until success",
 )
-def wrap(command: List[str], config: Path, retries: int):
+@click.option(
+    "--version",
+    is_flag=True,
+    default=False,
+    help="Print version and exit",
+)
+def wrap(command: List[str], config: Path, retries: int, version):
     """Wrap an arbitrary command with gotify notifications"""
 
+    if version:
+        print(version)
+        sys.exit(0)
+
     # read settings first
     with open(config, "r") as f:
         settings = toml.load(f)
@@ -85,7 +96,7 @@ def wrap(command: List[str], config: Path, retries: int):
         with gotify.Gotify(base_url=url, app_token=app_token) as gotify_connection:
             gotify_connection.create_message(message=message, title=title)
 
-    return result.returncode
+    sys.exit(result.returncode)
 
 
 # %% main