From a77bfd0f1528be2e885e4c4c8d41e70dfa6bae0d Mon Sep 17 00:00:00 2001
From: Sylvain Fankhauser <sephi@fhtagn.top>
Date: Tue, 13 Feb 2024 17:54:48 +0100
Subject: [PATCH] nixos-rebuild: fix --specialisation with remote builder and
 target

Fixes #286066.
---
 pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
index 2051368a49f6..3ac165f95c75 100755
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
@@ -791,7 +791,13 @@ if [[ "$action" = switch || "$action" = boot || "$action" = test || "$action" =
     else
         cmd+=("$pathToConfig/specialisation/$specialisation/bin/switch-to-configuration")
 
-        if [[ ! -f "${cmd[-1]}" ]]; then
+        if [ -z "$targetHost" ]; then
+            specialisationExists=$(test -f "${cmd[-1]}")
+        else
+            specialisationExists=$(targetHostCmd test -f "${cmd[-1]}")
+        fi
+
+        if ! $specialisationExists; then
             log "error: specialisation not found: $specialisation"
             exit 1
         fi