diff options
| -rw-r--r-- | nixos/modules/installer/tools/nixos-option.sh | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/nixos/modules/installer/tools/nixos-option.sh b/nixos/modules/installer/tools/nixos-option.sh index 327e3e6989f7..4560e9c7403a 100644 --- a/nixos/modules/installer/tools/nixos-option.sh +++ b/nixos/modules/installer/tools/nixos-option.sh @@ -314,13 +314,13 @@ else # echo 1>&2 "Warning: This value is not an option." result=$(evalCfg "") - if names=$(attrNames "$result" 2> /dev/null); then + if [ ! -z "$result" ]; then + names=$(attrNames "$result" 2> /dev/null) echo 1>&2 "This attribute set contains:" escapeQuotes () { eval echo "$1"; } nixMap escapeQuotes "$names" else - echo 1>&2 "An error occurred while looking for attribute names." - echo $result + echo 1>&2 "An error occurred while looking for attribute names. Are you sure that '$option' exists?" fi fi |