Concatenate JINJA for loops, echo back ignored directories in backup script

roles/backup/templates/s3backup.sh

@@ -26,11 +26,7 @@ set -e
 # We use a bash array because it affords us some level of sanitization, enough
 # to let us back up items whose paths contain spaces
 declare -a DIRS
-{% for item in backup_s3backup_list %}
-DIRS+=("{{ item }}")
-{% endfor %}
-# Extra, probably host-specific directories
-{% for item in backup_s3backup_list_extra %}
+{% for item in backup_s3backup_list + backup_s3backup_list_extra %}
 DIRS+=("{{ item }}")
 {% endfor %}
 # End directories
@@ -50,12 +46,13 @@ echo "Commencing backup on the following items:"
 for dir in "${DIRS[@]}"; do
 	echo "- $dir"
 done
+echo "Will ignore the following items:"
+{% for item in backup_s3backup_exclude_list + backup_s3backup_exclude_list_extra %}
+echo "- {{ item }}"
+{% endfor %}
 echo "Will upload resultant backup to {{ backup_s3_bucket }}"
 nice -n 10 tar {{ backup_s3backup_tar_args }}{{ backup_s3backup_tar_args_extra }} "${DIRS[@]}" \
-{% for item in backup_s3backup_exclude_list %}
-	--exclude "{{ item }}" \
-{% endfor %}
-{% for item in backup_s3backup_exclude_list_extra %}
+{% for item in backup_s3backup_exclude_list + backup_s3backup_exclude_list_extra %}
 	--exclude "{{ item }}" \
 {% endfor %}
 	| aws s3 cp - \