remaster/src/func/chroot_is_mounted

#!/bin/bash
#remaster lib
[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }

#chroot_is_mounted [chroot_dir]
#(Boolean)-> true | false
function chroot_is_mounted() {
	#$1 = chroot directory

	if [ "`mount | grep "$1"`" != "" ] ; then
		#ther is smething mounted
		echo "true"
	else
		#nothing mounted
		echo "false"
	fi
}

#this func is standalone executable
[ -n "$1" ] && {
  chroot_is_mounted $@
}