How to use OSXFUSE + SSHFS to mount/unmount a remote filesystem

sshfs_mount.sh

#!/bin/sh

# mounts a host named 'mycoolhost' (as described in SSH config):
# ./sshfs_mount.sh
# unmount:
# ./sshfs_mount.sh 0

REMOTE_HOST='mycoolhost'
REMOTE_DIR='/home/mycooluser'
VOLNAME="$REMOTE_HOST"
LOCAL_DIR="$HOME/mnt/$VOLNAME"
BIND="$REMOTE_HOST:$REMOTE_DIR"
mkdir -p "$LOCAL_DIR"

if [ "$1" == "0" ]; then
  echo "unmounting '$VOLNAME'..."
  umount "$BIND"
else
  if mount | grep -q "^$BIND"; then
    echo "'$VOLNAME' already mounted:"
    mount | grep "^$BIND"
  else
    echo "mounting '$VOLNAME'..."
    /usr/local/bin/sshfs "$BIND" "$LOCAL_DIR" -ovolname="$VOLNAME"
  fi
fi