#!/bin/bash
# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

### wait for a shell to become available

## usage: fx wait
##
## Attempts to SSH to the target repeatedly until the target becomes
## available.

source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/lib/vars.sh || exit $?

device_addr=""
until [[ -n "${device_addr}" ]]; do
  device_addr="$(get-fuchsia-device-addr 2>/dev/null)"
done
until fx-command-run ssh "${device_addr}" \
  -o ConnectionAttempts=1 -o ConnectTimeout=1 echo >/dev/null 2>&1; do
  echo -n
done