From 2680b60c30cd6c757a32ddab1d6b13a90140cc2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=A9clairevoyant?=
 <848000+eclairevoyant@users.noreply.github.com>
Date: Tue, 23 Apr 2024 15:02:18 -0400
Subject: [PATCH] nixos-rebuild: avoid rebuilding nix / reexecuting
 nixos-rebuild for list-generations

---
 pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
index 67733922f0c0..f3ee49a8c395 100755
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
@@ -50,6 +50,10 @@ while [ "$#" -gt 0 ]; do
         ;;
       switch|boot|test|build|edit|repl|dry-build|dry-run|dry-activate|build-vm|build-vm-with-bootloader|list-generations)
         if [ "$i" = dry-run ]; then i=dry-build; fi
+        if [ "$i" = list-generations ]; then
+            buildNix=
+            fast=1
+        fi
         # exactly one action mandatory, bail out if multiple are given
         if [ -n "$action" ]; then showSyntax; fi
         action="$i"