adding pre-update

Author: CamDavidsonPilon

update_scripts/upcoming/pre_update.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -xeu
+
+
+export LC_ALL=C
+
+# Lower bound version
+min_version="24.9.19"
+
+# Get the current version of pio
+current_version=$(sudo -u pioreactor pio version)
+
+# Use sorting to determine if the current version is less than the minimum version
+is_valid=$(printf "%s\n%s" "$current_version" "$min_version" | sort -V | head -n1)
+
+# If the smallest version isn't the minimum version, then current version is too low
+if [ "$is_valid" != "$min_version" ]; then
+    sudo -u pioreactor pio log -l ERROR -m "Version error: installed version $current_version is lower than the minimum required version $min_version."
+    exit 1
+fi
+
+echo "Version check passed: $current_version"