run-parts: add --list option

Signed-off-by: Marcela Mašláňová <mmaslano@redhat.com>

run-parts

@@ -5,10 +5,28 @@
 set +e
 
 if [ $# -lt 1 ]; then
-	echo "Usage: run-parts <dir>"
+	echo "Usage: run-parts [--list] <dir>"
 	exit 1
 fi
 
+while [ $# -gt 1 ]; do
+	case $1 in
+		--list)
+			list=1
+			shift
+			;;
+		--)
+			# -- end of options
+			shift
+			break
+			;;
+		*)
+			# directory
+			break
+			;;
+	esac
+done
+
 if [ ! -d $1 ]; then
 	echo "Not a directory: $1"
 	exit 1
@@ -39,6 +57,10 @@ for i in $(LC_ALL=C; echo $1/*[^~,]) ; do
 		if [ -r $1/whitelist ]; then
 			grep -q "^$(basename $i)$" $1/whitelist && continue
 		fi
+		# list executable files in directory
+		if [ ${list:-0} != 0 ]; then
+			echo $i;
+		else # run executable files
 			logger -p cron.notice -t "run-parts($1)[$$]" "starting $(basename $i)"
 			$i 2>&1 | awk -v "progname=$i" \
 			      'progname {
@@ -48,6 +70,7 @@ for i in $(LC_ALL=C; echo $1/*[^~,]) ; do
 			       { print; }'
 			logger -i -p cron.notice -t "run-parts($1)" "finished $(basename $i)"
 		fi
+	fi
 done
 
 exit 0