From 75e0609a001e6c12ca7ecfa72c4d290eb4ebc73c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Na=C3=AFm=20Favier?= <n@monade.li>
Date: Sat, 10 Dec 2022 16:46:34 +0100
Subject: [PATCH] nixos/borgbackup: fix newline escaping with optional
 arguments

The newline must always be escaped, otherwise `extraPruneArgs` will be treated as a separate command if `prune.prefix` is unset.
---
 nixos/modules/services/backup/borgbackup.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/backup/borgbackup.nix b/nixos/modules/services/backup/borgbackup.nix
index 7ccb17073f6f..ea1d393c7b02 100644
--- a/nixos/modules/services/backup/borgbackup.nix
+++ b/nixos/modules/services/backup/borgbackup.nix
@@ -58,7 +58,7 @@ let
   '' + optionalString (cfg.prune.keep != { }) ''
     borg prune $extraArgs \
       ${mkKeepArgs cfg} \
-      ${optionalString (cfg.prune.prefix != null) "--glob-archives ${escapeShellArg "${cfg.prune.prefix}*"} \\"}
+      ${optionalString (cfg.prune.prefix != null) "--glob-archives ${escapeShellArg "${cfg.prune.prefix}*"}"} \
       $extraPruneArgs
     ${cfg.postPrune}
   '';