From 04fa68bfed8637e19292498e77fcfcc22e42cf39 Mon Sep 17 00:00:00 2001
From: Nick Chambers <uplime@spookyinternet.com>
Date: Thu, 20 Oct 2022 03:00:10 -0500
Subject: [PATCH] Close the shell after 10 minutes of inactivity

---
 dotlib/cattle.sh | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 dotlib/cattle.sh

diff --git a/dotlib/cattle.sh b/dotlib/cattle.sh
new file mode 100644
index 0000000..8fdbc99
--- /dev/null
+++ b/dotlib/cattle.sh
@@ -0,0 +1,28 @@
+reset-elapsed() {
+  (( last_cmd_at = SECONDS ))
+}
+
+ping-timer() {
+  kill -USR1 "$reaper_pid" 2>/dev/null
+}
+
+kill-reaper() {
+  kill -KILL "$reaper_pid"
+}
+
+{
+  trap reset-elapsed USR1
+  last_cmd_at=0
+
+  while sleep 1; do
+    (( elapsed = SECONDS - last_cmd_at ))
+
+    if (( elapsed > 600 )); then
+      kill -KILL "$$"
+      exit
+    fi
+  done
+} &
+
+reaper_pid=$! prompt_cmds+=(ping-timer)
+trap kill-reaper EXIT