From 70cb6e67c0a976f3e170e38b6b33777685f7c680 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= <bjorn.forsman@gmail.com>
Date: Sun, 1 Mar 2015 21:29:40 +0100
Subject: [PATCH] nixos/apcupsd: don't evaluate event hooks at build time

Better replace the double quotes in 'echo "${commands}"' with single
quotes, to prevent the shell from doing command substitution etc. at
configuration build time.
---
 nixos/modules/services/monitoring/apcupsd.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/monitoring/apcupsd.nix b/nixos/modules/services/monitoring/apcupsd.nix
index ffa7be7dd30..6cd0254dbe3 100644
--- a/nixos/modules/services/monitoring/apcupsd.nix
+++ b/nixos/modules/services/monitoring/apcupsd.nix
@@ -39,7 +39,7 @@ let
 
   shellCmdsForEventScript = eventname: commands: ''
     echo "#!${pkgs.stdenv.shell}" > "$out/${eventname}"
-    echo "${commands}" >> "$out/${eventname}"
+    echo '${commands}' >> "$out/${eventname}"
     chmod a+x "$out/${eventname}"
   '';