#!/usr/bin/env bash
set -ex

# if lan not mounted, then try to mount it
if ! (test -d /mnt/servo-root-lan/nix)
then
  sudo mount /mnt/servo-root-lan
fi
# not much reason not to mount the wan while we're here.
if ! (test -d /mnt/servo-root-wan/nix)
then
  sudo mount /mnt/servo-root-wan
fi

mnt=/mnt/servo-root-wan
# if the LAN is accessible, prefer that
test -d /mnt/servo-root-wan/nix && mnt=/mnt/servo-root-lan

# symlink the fastest mount point into place
# uncomment if i see the bug again: sudo unlink /mnt/servo-root  # XXX ln gets confused if the destination is a symlink to a stale mount
sudo ln -sf --no-dereference $mnt /mnt/servo-root