From 6a2202baf3edff90aea6b66996a8e11e4e7c133e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ak=E1=B9=A3aya=20=C5=9Ar=C4=ABniv=C4=81san?=
 <akssri@vakra.xyz>
Date: Wed, 13 May 2026 13:31:19 +0530
Subject: [PATCH] Fix --docker flag default for Click >= 8.2 compatibility

Click 8.2 changed flag_value option handling: default=False is no longer
normalised to None before the 'is None' guard. Change to default=None so
sky launch works with Click >= 8.2 (e.g. nixpkgs).

Upstream constrains click<8.2; this makes the code robust to newer versions.
---
 sky/client/cli/command.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sky/client/cli/command.py b/sky/client/cli/command.py
index 6ee1102d0..15a5057d6 100644
--- a/sky/client/cli/command.py
+++ b/sky/client/cli/command.py
@@ -1072,7 +1072,7 @@ def _handle_infra_cloud_region_zone_options(infra: Optional[str],
 @click.option('--docker',
               'backend_name',
               flag_value=backends.LocalDockerBackend.NAME,
-              default=False,
+              default=None,
               hidden=True,
               help=('(Deprecated) Local docker support is deprecated. '
                     'To run locally, create a local Kubernetes cluster with '
-- 
2.53.0