add support for custom restic flags

templates/backup-check.j2

@@ -6,7 +6,7 @@ set -euo pipefail
 source /etc/backup-client/restic.env
 
 restic check --read-data \
-	--cleanup-cache{% if not backup_restic_cache %} --no-cache{% endif %}
+	{{ restic_combined_flags }}
 
 {% endif %}
 

templates/backup-retention.j2

@@ -7,7 +7,7 @@ source /etc/backup-client/retention.env
 # restic backend
 source /etc/backup-client/restic.env
 restic forget \
-	--cleanup-cache {% if not backup_restic_cache %} --no-cache{% endif %} \
+	{{ restic_combined_flags }} \
 	--verbose \
 	--prune \
 	--group-by "host,paths,tags" \

templates/backup-standalone.j2

@@ -8,7 +8,7 @@ test -f "/etc/backup-client/enabled" || { echo "Standalone backup is disabled";
 source /etc/backup-client/restic.env
 
 restic backup \
-	--cleanup-cache {% if not backup_restic_cache %} --no-cache{% endif %} \
+	{{ restic_combined_flags }} \
 	--verbose \
 	--exclude-caches \
 	--one-file-system \

templates/backup-vm.j2

@@ -122,7 +122,7 @@ set -euo pipefail
 		# restic backend
 		source /etc/backup-client/restic.env
 		restic backup \
-			--cleanup-cache {% if not backup_restic_cache %} --no-cache{% endif %} \
+			{{ restic_combined_flags }} \
 			--verbose \
 			--host "$DOMAIN" \
 			--exclude-file "/etc/backup-client/vms/$DOMAIN/exclude_files" \