feat: --version option (#91)

Author: sdn4z

justfile

@@ -1,7 +1,7 @@
 # VARIABLE DEFINITIONS
 venv := ".venv"
 python_version :="3.13"
-run := "poetry run"
+run := "uv run"
 eval_path := "eval/cli.py"
 
 venv-exists := path_exists(venv)
@@ -40,6 +40,7 @@ test-all: venv
 
 # Format all code in the project.
 format:  venv
+    {{ run }} ruff format {{ target_dirs }}
     {{ run }} ruff check {{ target_dirs }} --fix
 
 # Lint all code in the project.

src/lightman_ai/cli.py

@@ -1,4 +1,5 @@
 import logging
+from importlib import metadata
 
 import click
 from dotenv import load_dotenv
@@ -12,7 +13,13 @@
 logger = logging.getLogger("lightman")
 
 
+def get_version() -> str:
+    """Read version from VERSION file."""
+    return metadata.version("lightman-ai")
+
+
 @click.group()
+@click.version_option(version=get_version(), prog_name="lightman-ai")
 def entry_point() -> None:
     pass
 

tests/test_cli.py

@@ -201,3 +201,10 @@ def test_service_desk_variables_missing_from_toml(self, m_load_dotenv: Mock) ->
             model=None,
         )
         assert m_config.call_count == 2
+
+    @patch("lightman_ai.cli.metadata.version")
+    def test_get_version_calls_metadata(self, mock_version: Mock) -> None:
+        mock_version.return_value = "1.2.3"
+
+        assert cli.get_version() == "1.2.3"
+        mock_version.assert_called_once_with("lightman-ai")