don't bomb on no input

2015-06-03 19:59:58 -04:00 · 2015-06-03 19:59:58 -04:00 · c44d6de23b
parent 77d8600c4e
commit c44d6de23b
1 changed files with 3 additions and 3 deletions
--- a/bin/install-category
+++ b/bin/install-category
@ -1,11 +1,11 @@
 #! /bin/sh -e

-indir=$1; shift
-
-if ! [ -d $indir ]; then
+indir=$1
+if ! [ -n "$indir" -a -d $indir ]; then
 	echo "Usage: $0 PUZZLEDIR"
 	exit 1
 fi
+shift

 die () {
 	echo "$@" 1>&2