From 4b2d6fcabbffbd68edb35bd9da1b855cffcb51cb Mon Sep 17 00:00:00 2001
From: Nick Chambers <uplime@spookyinternet.com>
Date: Mon, 15 Nov 2021 15:52:23 -0600
Subject: [PATCH] Add a shuffle utility

---
 rowbot | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/rowbot b/rowbot
index c839cd5..368b46a 100755
--- a/rowbot
+++ b/rowbot
@@ -97,6 +97,18 @@ any_file() {
   fi
 }
 
+shuffle() {
+  local idx=0 spot tmp
+  declare -n rowbot_array=$1
+
+  for (( ; idx < ${#rowbot_array[@]}; idx += 1 )); do
+    spot=$(random 0 "${#rowbot_array[@]}")
+    tmp=${rowbot_array[$idx]}
+    rowbot_array[$idx]=${rowbot_array[$spot]}
+    rowbot_array[$spot]=$tmp
+  done
+}
+
 # misc
 
 is_running () {