Renamed update check script.

Will be extended for other checks, not only debian packages.

bin/executable_update-check.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+#
+# Checks for debian updates and informs a gotify server.
+#
+# MUST RUN AS ROOT (best in a cronjob)
+#
+
+token="https://heavy.uber.space/gotify/message?token=Apw3EgT7BpQZ0rs"
+MYTEMPDIR="$(mktemp -d)"
+MYAPT="$MYTEMPDIR/apt-update.txt"
+trap 'rm -rf -- "$MYDIR"' EXIT
+
+apt update > "$MYAPT" 2>&1
+MSG=$(tail -1 "$MYAPT")
+
+if [[ $MSG =~ All.packages.are.up.to.date ]]; then
+    echo $MSG
+else
+    SUMMARY=$(echo "$MSG" | awk -F "." '{print $1}')
+    LST="$(aptitude -F %p search '~U')"
+    LST="$(echo $LST | tr '\n' ' ')"
+    text="$SUMMARY ($(uname -n)):\n $LST"
+    curl -H "Content-Type: application/json" -X POST $token -d "{\"title\":\"Debian Update Checker\",\"message\":\"$text\"}"
+fi
+