project-moblab/chromeos-base/chromeos-bsp-moblab/files/init/moblab-external-storage-init.conf

# Copyright (c) 2014 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.

description   "Mount and setup moblab external storage."
author        "chromium-os-dev@chromium.org"

start on started cros-disks and started moblab-database-init
normal exit 0

env MOUNT_DIR=/mnt/moblab
env EXTERNAL_RESULTS_DIR=/mnt/moblab/results
env ATEST_RESULTS_DIR=/usr/local/autotest/results
export ATEST_RESULTS_DIR
env STATIC_DIR=/mnt/moblab/static
export STATIC_DIR
env LOCAL_STORAGE_DIR=/usr/local/moblab-storage
env MIN_STATEFUL_DISKSPACE=32000000

script
  mkdir -p /var/log/bootup/
  exec >>/var/log/bootup/${UPSTART_JOB}.log 2>&1
  set -x
  logger -t "${UPSTART_JOB}" "Starting"
  # REQUIRES A USB DRIVE WITH LABEL "MOBLAB-STORAGE"
  sleep 1
  usb_drive=$(readlink -f /dev/disk/by-label/MOBLAB-STORAGE)
  if [ -e "${usb_drive}" ]; then
    logger -t "${UPSTART_JOB}" "Mounting external storage using ${usb_drive}."
    umount -A "${usb_drive}" || :
    /sbin/e2fsck -p "${usb_drive}" || :
    if ! mount "${usb_drive}" "${MOUNT_DIR}" -o exec,dev,nosuid; then
      logger -t "${UPSTART_JOB}" "Mounting of ${usb_drive} onto ${MOUNT_DIR}"
      logger -t "${UPSTART_JOB}" "failed. Please reconnect drive and reboot."
      exit 1
    fi
  else
    logger -t "${UPSTART_JOB}" "No disk labeled MOBLAB-STORAGE found!"
    local_part=$(dirname "${LOCAL_STORAGE_DIR}")
    diskspace=$(df "${local_part}" | awk '!/Filesystem/ { print $4 }')
    if [ ${diskspace} -lt ${MIN_STATEFUL_DISKSPACE} ]; then
      logger -t "${UPSTART_JOB}" "Moblab will not launch. Please insert a"
      logger -t "${UPSTART_JOB}" "properly configured drive and reboot."
      exit 1
    fi
    logger -t "${UPSTART_JOB}" "Moblab will launch using internal disk space."
    mkdir -p "${LOCAL_STORAGE_DIR}"
    logger -t "${UPSTART_JOB}" "Remounting /usr/local/ with dev permissions."
    mount -o remount,dev /usr/local
    mount --bind "${LOCAL_STORAGE_DIR}" "${MOUNT_DIR}"
  fi

  mkdir -p "${EXTERNAL_RESULTS_DIR}"
  chown -R moblab:moblab "${EXTERNAL_RESULTS_DIR}"
  # If the old results directory exists copy over the files and delete it.
  if [ -e "${ATEST_RESULTS_DIR}" -a ! -L  "${ATEST_RESULTS_DIR}" ]; then
    logger -t "${UPSTART_JOB}" "Copying results directory."
    cp -r "${ATEST_RESULTS_DIR}/" "${MOUNT_DIR}"
    rm -rf "${ATEST_RESULTS_DIR}"
  fi
  # Create the results directory symlink if it does not exist.
  if [ ! -e "${ATEST_RESULTS_DIR}" ]; then
    logger -t "${UPSTART_JOB}" "Creating autotest results dir symlink."
    ln -s "${EXTERNAL_RESULTS_DIR}" "${ATEST_RESULTS_DIR}"
  fi

  # If the database is empty clear out any old files in the results directory.
  jobcount="$(mysql -u root -pmoblab_db_passwd -D chromeos_autotest_db \
              -e 'select count(*) from afe_jobs' | tail -1)"
  if [ "${jobcount}" = "0" ]; then
    rm -rf "${EXTERNAL_RESULTS_DIR}"/*
  fi

  mkdir -p "${STATIC_DIR}"
  chown moblab:moblab "${MOUNT_DIR}" || :
  chown -R moblab:moblab "${MOUNT_DIR}/static" || :
  chown -R moblab:moblab "${MOUNT_DIR}/results" || :

  logger -t "${UPSTART_JOB}" "Ending."
end script