#! /bin/bash
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Run startup scripts that should happen "Late" at boot.
#
# Do NOT "set -e"

PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin

if [ -x /usr/bin/logger ]; then
    declare -r LOGGER=/usr/bin/logger
else
    declare -r LOGGER=/bin/logger
fi

LOG_CMD="${LOGGER} -t startupscript -p daemon.info"

function log() {
  echo $* | ${LOG_CMD}
}

function die() {
  log $*
  exit 1
}

declare -r STARTUP_SCRIPT=/var/run/google.startup.script
declare -r GOOGLE_ENVIRONMENT=/var/run/google.environment

# Make sure all udev changes settle before running startup scripts.
udevadm settle


function copy_and_run() {
  local source=$1
  local dest=$(mktemp)
  cat ${source} >> ${dest}
  chmod u+x ${dest}
  log "Running startup script ${source}"
  ${dest} 2>&1 | ${LOG_CMD}
  log "Finished running startup script ${source}"
  rm -f ${dest}
}

if [[ -e ${STARTUP_SCRIPT} ]]; then
  (
    [ -r ${GOOGLE_ENVIRONMENT} ] && source ${GOOGLE_ENVIRONMENT};
    copy_and_run ${STARTUP_SCRIPT}
  )
fi
