#!/usr/bin/env 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.

# Installs or updates prebuilt tools.

set -o errexit
set -o pipefail

# Increment this value when removing tools from cipd.ensure. That will ensure
# the corresponding executables get removed from every user's prebuilts the next
# time they run this script.
VERSION="1"

script_root="$(cd "$(dirname "${BASH_SOURCE[0]}" )" && pwd)"

tools_dir="$script_root/tools"
version_file="$tools_dir/version.txt"

got_version="0"
if [ -f "$version_file" ]; then
  got_version="$(cat "$version_file")"
fi
if ! [ "$got_version" = "$VERSION" ]; then
  # Tools are out of date, remove the whole directory to garbage-collect any
  # tools that may have been deleted from cipd.ensure.
  rm -rf "$tools_dir"
fi

"${script_root}/cipd.py" ensure \
  -ensure-file "${script_root}/cipd.ensure" \
  -root "${script_root}" \
  -log-level warning

echo "$VERSION" > "$version_file"