Merge pull request #489 from languitar/feature/version-argument

feat(cli): provide a version subcommand

src/autosuspend/__init__.py

@@ -6,6 +6,7 @@
 import configparser
 from contextlib import suppress
 from datetime import datetime, timedelta, timezone
+from importlib.metadata import version
 import functools
 import logging
 import logging.config
@@ -553,6 +554,11 @@ def parse_arguments(args: Optional[Sequence[str]]) -> argparse.Namespace:
     subparsers = parser.add_subparsers(title="subcommands", dest="subcommand")
     subparsers.required = True
 
+    parser_version = subparsers.add_parser(
+        "version", help="Outputs the program version"
+    )
+    parser_version.set_defaults(func=main_version)
+
     parser_daemon = subparsers.add_parser(
         "daemon", help="Execute the continuously operating daemon"
     )
@@ -736,6 +742,12 @@ def hook(
         )
 
 
+def main_version(
+    args: argparse.Namespace, config: configparser.ConfigParser  # noqa: ARG001
+) -> None:
+    print(version("autosuspend"))  # noqa: T201
+
+
 def main_hook(
     args: argparse.Namespace, config: configparser.ConfigParser  # noqa: ARG001
 ) -> None:

tests/test_integration.py

@@ -244,3 +244,13 @@ def test_hook_call_wakeup(tmp_path: Path, datadir: Path) -> None:
     assert int((tmp_path / SCHEDULED_FILE).read_text()) == int(
         round((wakeup_at - timedelta(seconds=30)).timestamp())
     )
+
+
+def test_version(tmp_path: Path, datadir: Path) -> None:
+    autosuspend.main(
+        [
+            "-c",
+            str(configure_config("would_schedule.conf", datadir, tmp_path)),
+            "version",
+        ]
+    )