From 7a7f37e5fc614c169d135ce9681f606a736ebcda Mon Sep 17 00:00:00 2001
From: Eric Gustin <34000337+EricGustin@users.noreply.github.com>
Date: Fri, 17 Jan 2025 15:48:36 -0800
Subject: [PATCH] Add `arcade --version` (#211)

# PR Description
Implements a version callback for the arcade CLI.

### Usage
`arcade --version` OR `arcade -v`

### Example Output
`Arcade (version 0.1.5)`
---
 arcade/arcade/cli/main.py  | 15 +++++++++++++++
 arcade/arcade/cli/utils.py | 10 ++++++++++
 2 files changed, 25 insertions(+)

diff --git a/arcade/arcade/cli/main.py b/arcade/arcade/cli/main.py
index 437ca689..c67704c7 100644
--- a/arcade/arcade/cli/main.py
+++ b/arcade/arcade/cli/main.py
@@ -36,6 +36,7 @@ from arcade.cli.utils import (
     load_eval_suites,
     log_engine_health,
     validate_and_get_config,
+    version_callback,
 )
 
 cli = typer.Typer(
@@ -475,3 +476,17 @@ def workerup(
         error_message = f"❌ Failed to start Arcade Worker: {escape(str(e))}"
         console.print(error_message, style="bold red")
         typer.Exit(code=1)
+
+
+@cli.callback()
+def version(
+    _: bool = typer.Option(
+        None,
+        "-v",
+        "--version",
+        callback=version_callback,
+        is_eager=True,
+        help="Print version and exit.",
+    ),
+) -> None:
+    pass
diff --git a/arcade/arcade/cli/utils.py b/arcade/arcade/cli/utils.py
index fa68859c..1671e1f6 100644
--- a/arcade/arcade/cli/utils.py
+++ b/arcade/arcade/cli/utils.py
@@ -667,3 +667,13 @@ def parse_user_command(user_input: str) -> ChatCommand | None:
         return ChatCommand(user_input)
     except ValueError:
         return None
+
+
+def version_callback(value: bool) -> None:
+    """Callback implementation for the `arcade --version`.
+    Prints the version of Arcade and exit.
+    """
+    if value:
+        version = importlib.import_module("arcade").__version__
+        console.print(f"[bold]Arcade[/bold] (version {version})")
+        exit()