Update 420_autoresize_last_partitions.sh

Fixed fallback assignments of mandatory values to not let them evaluate to nonsense commands, see #2926
rear · Feb 14, 2023 · b20796b · b20796b
1 parent 42e04f3
commit b20796b
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/usr/share/rear/layout/prepare/default/420_autoresize_last_partitions.sh b/usr/share/rear/layout/prepare/default/420_autoresize_last_partitions.sh
@@ -66,11 +66,11 @@
 # Avoid 'set -e -u' exit e.g. because of "AUTORESIZE_PARTITIONS[@]: unbound variable"
 # note that assigning an empty array like AUTORESIZE_PARTITIONS=() does not help
 # against array elements like AUTORESIZE_PARTITIONS[0] are unbound variables:
-${AUTORESIZE_PARTITIONS:=}
-${AUTORESIZE_EXCLUDE_PARTITIONS:=}
+: ${AUTORESIZE_PARTITIONS:=}
+: ${AUTORESIZE_EXCLUDE_PARTITIONS:=}
 # Set fallbacks (same as default.conf) if mandatory numbers are not set (the user may set them empty):
-${AUTOSHRINK_DISK_SIZE_LIMIT_PERCENTAGE:=2}
-${AUTOINCREASE_DISK_SIZE_THRESHOLD_PERCENTAGE:=10}
+: ${AUTOSHRINK_DISK_SIZE_LIMIT_PERCENTAGE:=2}
+: ${AUTOINCREASE_DISK_SIZE_THRESHOLD_PERCENTAGE:=10}
 
 # Skip if not in migration mode:
 is_true "$MIGRATION_MODE" || return 0