#!/bin/bash
set -o

DISK=$1

# Confirm DISK choice
if [ -n "$DISK" ]; then
  read -rp "You selected to OVERWRITE '${DISK}', are you sure? [y/N] " yn
else
	echo "ERROR: No disk selected. Pass through a disk path, e.g., ./zfslive.sh /dev/sdX"
	exit 1;
fi

case $yn in
	[yY] ) ;;
	* ) echo "ERROR: User aborted"
		exit 1;;
esac

# Is the DISK path a block device?
DISK_TYPE=$(file "${DISK}" | awk '{ print $2$3 }')
if [ "$DISK_TYPE" != "blockspecial" ]; then
	echo "ERROR: Disk '${DISK}' is not a block device"
	exit 1;
fi

# Check
unset CDPATH
SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
df "$SCRIPT_DIR"
#echo "$SCRIPT_DIR"
exit 0