From 70559a8be5d3c0fdaf31c7c3f207b4298c09f0f4 Mon Sep 17 00:00:00 2001
From: Darren Burns <darrenb900@gmail.com>
Date: Tue, 19 Apr 2022 12:36:55 +0100
Subject: [PATCH] Add version option

---
 src/textual/cli/cli.py |  2 ++
 tests/cli/test_cli.py  | 10 ++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 tests/cli/test_cli.py

diff --git a/src/textual/cli/cli.py b/src/textual/cli/cli.py
index 046363059..720b9efe8 100644
--- a/src/textual/cli/cli.py
+++ b/src/textual/cli/cli.py
@@ -1,9 +1,11 @@
 import click
 
+import textual
 from textual.devtools.server import _run_devtools
 
 
 @click.group()
+@click.version_option(textual.__version__)
 def run():
     pass
 
diff --git a/tests/cli/test_cli.py b/tests/cli/test_cli.py
new file mode 100644
index 000000000..35a3ea741
--- /dev/null
+++ b/tests/cli/test_cli.py
@@ -0,0 +1,10 @@
+from click.testing import CliRunner
+
+import textual
+from textual.cli.cli import run
+
+
+def test_cli_version():
+    runner = CliRunner()
+    result = runner.invoke(run, ["--version"])
+    assert textual.__version__ in result.output, "You need to update __version__"