download.sh.erb

#! /bin/bash

# Published under the Apache License v2.0
# Copyright (c) Craig Watson

function check_exec {
  if [ ! -x $1 ]; then
    echo "$1 not found"
    exit 1
  fi
}

function clean_download {
  if [ ${CLEAN_FAILED_DOWNLOAD} -eq 1 ]; then
    if [ -f "${DOWNLOAD_LOCATION}" ]; then
      echo "Removing downloaded archive." >&2
      rm "${DOWNLOAD_LOCATION}"
    fi
  fi
}

DOWNLOAD_URL="<%= scope['::vmwaretools::archive_url'] %>/VMwareTools-<%= scope['::vmwaretools::version'] %>.tar.gz"
DOWNLOAD_LOCATION="<%= scope['::vmwaretools::working_dir'] %>/VMwareTools-<%= scope['::vmwaretools::version'] %>.tar.gz"
GOOD_CHECKSUM="<%= scope['::vmwaretools::archive_md5'] %>"
CLEAN_FAILED_DOWNLOAD=<%= scope['::vmwaretools::params::clean_failed'] %>

check_exec "/usr/bin/curl"
check_exec "/usr/bin/md5sum"
check_exec "<%= scope['::vmwaretools::params::awk_path'] %>"

/usr/bin/curl -s "${DOWNLOAD_URL}" -o "${DOWNLOAD_LOCATION}"<% if scope['::vmwaretools::curl_proxy'] -%> -x <%= scope['::vmwaretools::curl_proxy'] %><% end %>

if [ $? -gt 0 ]; then
  echo "Download failed from url ${DOWNLOAD_URL}" >&2
  clean_download
  exit 1
fi

chmod 600 ${DOWNLOAD_LOCATION}

DOWNLOADED_CHECKSUM=$(/usr/bin/md5sum "${DOWNLOAD_LOCATION}" | <%= scope['::vmwaretools::params::awk_path'] %> '{ print $1 }')

if [ "${DOWNLOADED_CHECKSUM}" != "${GOOD_CHECKSUM}" ]; then
  echo "Checksum mismatch. Got ${DOWNLOADED_CHECKSUM}, should have been ${GOOD_CHECKSUM}." >&2
  clean_download
  exit 1
else
  exit 0
fi