Added version upgrade detection script (#5053).

monitoring/check_qrcodechaprilorg_update

@@ -0,0 +1,56 @@
+#!/bin/bash
+
+# Copyright (C) 2020 Christian Pierre Momon <christian@momon.org>
+#
+# This file is part of qrcode.chapril.org.
+#
+# This script is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+#
+line=$(grep libreqrVersion /var/www/qrcode.chapril.org/inc.php)
+regexp='.*"([^"]+)".*'
+if [[ $line =~ $regexp ]]; then
+    currentVersion=${BASH_REMATCH[1]}
+else
+    currentVersion=
+fi
+
+#
+line=$(curl -s -X GET "https://code.antopie.org/api/v1/repos/miraty/libreqr/releases" -H  "accept: application/json" | jshon |grep tag_name | head -1)
+regexp='.*"([1234567890.]+)".*'
+if [[ $line =~ $regexp ]]; then
+    lastVersion=${BASH_REMATCH[1]}
+else
+    lastVersion=
+fi
+
+#echo "[$currentVersion]"
+#echo "[$lastVersion]"
+
+if [ -z "$currentVersion" ]; then
+    echo "WARNING : current version not found."
+    result=1
+elif [ -z "$lastVersion" ]; then
+    echo "WARNING : last version not found."
+    result=1
+elif [ "$currentVersion" = "$lastVersion" ]; then
+    echo "OK     $currentVersion"
+    result=0
+else
+    echo "WARNING : new version available, current is $currentVersion, last is $lastVersion."
+    result=1
+fi    
+
+exit $result