From d79c9fe833257540361979cd638bc510fead7b44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gardais=20J=C3=A9r=C3=A9my?=
 <jeremy.gardais@univ-rennes1.fr>
Date: Fri, 25 Sep 2020 11:36:12 +0200
Subject: [PATCH] Disable SGE queue if used slots is EMPTY

---
 cluster/apt.check.update.sh | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/cluster/apt.check.update.sh b/cluster/apt.check.update.sh
index 8f6b853..5150fbd 100755
--- a/cluster/apt.check.update.sh
+++ b/cluster/apt.check.update.sh
@@ -150,6 +150,28 @@ Used slots did not reach ${local_percentage}% of total slots: ${RED}${local_sge_
 
 	return "${return_sge_slots_percentage}"
 
+}
+# }}}
+is_sge_slots_empty() {                                           # {{{
+
+	## Get the number of SGE used slots
+	local_sge_slots_used=$(qhost -h "${sge_hostname:=/dev/null}" -q -xml \
+		| grep --max-count=1 -- "'slots_used'" \
+		| sed 's;.*<queuevalue.*>\(.*\)</queuevalue>;\1;')
+
+	if [ "${local_sge_slots_used}" -eq "0"  ]; then
+		## Used slots is null
+		return_sge_slots_empty="0"
+	else
+		return_sge_slots_empty="1"
+	fi
+
+	## Simple debug message to valid current variable
+	debug_message "is_sge_slots_empty − \
+SGE slots currently in use: ${RED}${local_sge_slots_used:=/dev/null}${COLOR_DEBUG}."
+
+	return "${return_sge_slots_empty}"
+
 }
 # }}}
 is_pending_job_empty() {                                        # {{{
@@ -202,6 +224,17 @@ main() {                                                        # {{{
 		&& exit 0
 	## }}}
 
+	## If SGE used slots is NULL AND {{{
+	## APT package upgrade is available
+	### Create a temp file
+	### Disable SGE queue
+	is_sge_slots_empty \
+	&& is_apt_upgrade_present \
+		&& touch "${APT_TMP_FILE}" && echo "APT upgrade is available." >> "${APT_TMP_FILE}" \
+		&& sh "${sge_disable_host_queue_script}" \
+		&& exit 0
+	## }}}
+
 	## If pending job list is empty AND {{{
 	## APT package upgrade is available
 	### Create a temp file