#!/bin/bash
# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Simulates a Kokoro run executing one of the build-*.sh scripts.
# e.g. ./ci/kokoro/simulate build-aarch64.sh

kokoro_root=$(mktemp -d)
kokoro_src="${kokoro_root}/git/crosvm"
local_src=$(realpath $(dirname $0)/../../)

cleanup() {
  echo "Unmounting ${kokoro_src}"
  umount --lazy "${kokoro_src}" || true
  rm -rf "${kokoro_root}"
}

main() {
  # Bind mount source read-only to kokoro_src.
  echo "Bind-mounting ${local_src} to ${kokoro_src}"
  mkdir -p "${kokoro_src}"
  bindfs "${local_src}" "${kokoro_src}" -p 0000,u=rxD

  # Run user-provided kokoro build script.
  export KOKORO_ARTIFACTS_DIR="${kokoro_root}"
  echo "Running $1 in ${kokoro_root}"
  bash $(dirname $0)/$1
  echo "$1 returned $?"
}

trap cleanup EXIT
main "$@"