From 2907dbe18f0ac17b9fcae5df56b673d129839d66 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Tue, 7 Jul 2020 00:21:47 +0200
Subject: check-routeros-update: support installing patch updates automatically

---
 check-routeros-update | 14 ++++++++++++++
 global-config         |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/check-routeros-update b/check-routeros-update
index 9109e1d..931c32f 100644
--- a/check-routeros-update
+++ b/check-routeros-update
@@ -8,12 +8,14 @@
 
 :global Identity;
 :global SafeUpdateUrl;
+:global SafeUpdatePatch;
 :global SentRouterosUpdateNotification;
 
 :global DeviceInfo;
 :global LogPrintExit;
 :global ScriptFromTerminal;
 :global SendNotification;
+:global VersionToNum;
 
 :local DoUpdate do={
   :if ([ / system script print count-only where name="packages-update" ] > 0) do={
@@ -43,6 +45,18 @@
 }
 
 :if ($Update->"installed-version" != $Update->"latest-version") do={
+  :local NumInstalled [ $VersionToNum ($Update->"installed-version") ];
+  :local NumLatest [ $VersionToNum ($Update->"latest-version") ];
+
+  :if ($SafeUpdatePatch = true && $NumInstalled < $NumLatest && \
+      ($NumInstalled & 0xffff0000) = ($NumLatest & 0xffff0000)) do={
+    $LogPrintExit info ("Version " . $Update->"latest-version" . " is a patch release, updating...") false;
+    $SendNotification ("RouterOS update") \
+        ("Version " . $Update->"latest-version" . " is a patch update for " . $Update->"channel" . \
+        ", updating on " . $Identity . "...") "" "true";
+    $DoUpdate;
+  }
+
   :if ([ :len $SafeUpdateUrl ] > 0) do={
     :local Result;
     :do {
diff --git a/global-config b/global-config
index 5f22b6b..3976e69 100644
--- a/global-config
+++ b/global-config
@@ -46,6 +46,8 @@
 # The configured channel (bugfix, current, release-candidate) is appended.
 :global SafeUpdateUrl "";
 #:global SafeUpdateUrl "https://example.com/ros/safe-update/";
+# Allow to install patch updates automatically.
+:global SafeUpdatePatch false;
 
 # These thresholds control when to send health notification
 # on temperature and voltage.
-- 
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