From d62008814effff58445617b19ff7367742d64d34 Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Tue, 6 Sep 2022 22:45:40 +0100
Subject: [PATCH] Fix backup expiry script to match prefixes correctly

---
 cookbooks/backup/files/default/expire-backups | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cookbooks/backup/files/default/expire-backups b/cookbooks/backup/files/default/expire-backups
index 81834d437..9d82c384a 100644
--- a/cookbooks/backup/files/default/expire-backups
+++ b/cookbooks/backup/files/default/expire-backups
@@ -43,12 +43,12 @@ for my $month (0 .. $months - 1)
 }
 
 my $dates = join("|", @dates);
-my $match = qr/^${prefix}\d{4}-\d{2}-\d{2}\./;
-my $keep = qr/^${prefix}(?:${dates})\./;
+my $match = qr/^\Q${prefix}\E\d{4}-\d{2}-\d{2}\./;
+my $keep = qr/^\Q${prefix}\E(?:${dates})\./;
 
 opendir(DIR, "$dir") || die "Can't open ${dir}: $!";
 
-my @files = sort(grep($match, readdir(DIR)));
+my @files = sort(grep(/$match/, readdir(DIR)));
 
 closedir(DIR);
 
-- 
2.39.5