#!/bin/bash

#
# Copyright (c) 2018 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

# Build the export/bootimage.iso file
#
# This script uses environment variables to determine the source of
# packages, and bundles the packages into a bootable .iso
#
# It starts by building a basic "vanilla CentOS" ISO, and then adds our
# packages to it.

BUILD_ISO_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
source "${BUILD_ISO_DIR}/image-utils.sh"

usage () {
    echo ""
    echo "Usage: "
    echo "   build-iso [--auto <mode>] [--file <filename>] "
    echo "             [--device <device>] [--skip-sign]"
    echo "             [--sudo|udev]"
    echo "   --file <bootimage.iso> destination ISO file"
    echo "   --auto <controller|cpe> Modify kickstart to auto-install controller or cpe"
    echo "                           mode"
    echo "   --device <sda> Use a different boot/rootds device (default is sda)"
    echo "   --skip-sign do not add file signature to RPMs"
    echo "   --sudo Use \"sudo\" command to access EFI image filesystem (default)"
    echo "   --udev Use udev to access EFI image filesystem"
    echo ""
    echo "   Note that environment variable BUILD_ISO_USE_UDEV=1 will have the same effect"
    echo "     as the --udev option"
    echo ""
}

MY_YUM_CONF=""

NPROCS=$(nproc)

export MOCK=/usr/bin/mock

CREATEREPO=$(which createrepo_c)
if [ $? -ne 0 ]; then
   CREATEREPO="createrepo"
fi

# TEMPORARY: Check for isohybrid now to give a warning about installing pkg
if [ ! -f /usr/bin/isohybrid ]; then
    echo "Missing required utility: /usr/bin/isohybrid"
    echo "Installation of syslinux is required:"
    echo "    sudo yum install -y syslinux"
    exit 1
fi

function install_pkg_list {
   local PKGLIST=$1
   if [ "x$PKGLIST" == "x" ]; then
       return 1
   fi

   OLD_PWD=$PWD

   echo "Installing packages listed in $PKGLIST and dependancies"
   \rm -f $OUTPUT_DIR/dist/report_deps.txt
   $CREATEREPO $CGCS_REPO_DIR
   $CREATEREPO $CGCS_RT_REPO_DIR

   \cp -v $MY_YUM_CONF $OUTPUT_DIR

   \cd $OUTPUT_DIST_DIR/isolinux/Packages
   $INTERNAL_REPO_ROOT/build-tools/build_iso/cgts_deps.sh --deps=$PKGLIST
   
   if [ $? -ne 0 ]
   then
      echo "Could not install dependencies"
      exit 1
   fi
   
   # clean up
   echo "Removing local-std yum repo  $CGCS_REPO_DIR/repodata"
   echo "Removing local-rt yum repo   $CGCS_RT_REPO_DIR/repodata"

   \cd $OLD_PWD
}

# Generate the report of where all packages come from
function make_report {
   local PKGLISTFILES=$@
   if [ "x$PKGLISTFILES" == "x" ]; then
       return 1
   fi
   echo "MAKING $REPORT_FILE"
   echo "-----------------" >> $REPORT_FILE

   echo "ISO REPORT" > $REPORT_FILE
   date >>  $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE

   echo " " >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   echo "EXPLICIT INCLUDES" >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   for PKGLIST in $PKGLISTFILES; do
      while read PKG; do
         PKG=`echo $PKG | sed "s/#.*//"`;
         if [ "${PKG}x" != "x" ]; then 
            echo $PKG  >> $REPORT_FILE
         fi
      done < $PKGLIST
   done

   echo " " >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   echo " PACKAGES        " >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   cat $BUILT_REPORT | sort | uniq >> $REPORT_FILE

   echo " " >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   echo " WARNINGS        " >> $REPORT_FILE
   echo "-----------------" >> $REPORT_FILE
   
   # Note that the warnings file may have multiple lines for the same
   # missing dependency.  A sort | uniq solves this so we don't duplicate
   # warnings
   cat $WARNINGS_REPORT | sort | uniq >> $REPORT_FILE

   echo "ISO REPORT: $REPORT_FILE"
}

function init_vars {
   #####################################
   # Input definitions

   # Where all CentOS packages live
   # Where essential CentOS (minimal install) packages live
   INTERNAL_REPO_ROOT=
   STX_DIR=

   # Where BSP files live
   export BSP_FILES_PATH=

   # Where our own packages live
   CGCS_REPO_DIR=$MY_WORKSPACE/std/rpmbuild/RPMS
   CGCS_RT_REPO_DIR=$MY_WORKSPACE/rt/rpmbuild/RPMS

   MY_YUM_CONF=$(create-yum-conf)
   if [ $? -ne 0 ]; then
      echo "ERROR: create-yum-conf failed"
      exit 1
   fi

   DISTRO_REPO_DIR=$(for d in $(grep baseurl $MY_YUM_CONF | grep file: | awk -F : '{print $2}' | sed 's:///:/:g'); do if [ -d $d/images ]; then echo $d ;fi; done)

   #####################################
   # Output definitons

   # where to put stuff (curent dir unless MY_WORKSPACE defined)
   OUTPUT_DIR="$PWD/export"   
   if [ ! -z "$MY_WORKSPACE" ] && [ -d "$MY_WORKSPACE" ] ; then
       OUTPUT_DIR="$MY_WORKSPACE/export"
       CGCS_REPO_DIR="$MY_WORKSPACE/std/rpmbuild/RPMS"
       CGCS_RT_REPO_DIR="$MY_WORKSPACE/rt/rpmbuild/RPMS"
   fi

   # Directory in which to populate files to be distributed
   if [ $CUMULUS -eq 0 ]; then
      OUTPUT_DIST_DIR=$OUTPUT_DIR/dist
   else
      OUTPUT_DIST_DIR=$OUTPUT_DIR/dist-cumulus
   fi

   # Package disc image
   OUTPUT_FILE=$OUTPUT_DIR/$DEST_FILE

   # Generate an error if the output file is below this threshold
   MINIMUM_EXPECTED_SIZE=500000000


   # report variables
   REPORT_FILE=$OUTPUT_DIR/report.txt
   BUILT_REPORT=$OUTPUT_DIR/local.txt
   CLOUD_REPORT=$OUTPUT_DIR/cloud.txt
   CLOUD_COMMON_REPORT=$OUTPUT_DIR/cloudcommon.txt
   CENTOS_REPORT=$OUTPUT_DIR/centos.txt
   EPEL_REPORT=$OUTPUT_DIR/epel.txt
   WARNINGS_REPORT=$OUTPUT_DIR/warnings.txt

   \rm -f $REPORT_FILE
   \rm -f $BUILT_REPORT
   \rm -f $CLOUD_REPORT
   \rm -f $CLOUD_COMMON_REPORT
   \rm -f $CENTOS_REPORT
   \rm -f $WARNINGS_REPORT
}

# check input variables
function check_vars {
   # Where to store data
   printf "Finding cgcs-root\n"
   printf "  Checking \$MY_REPO (value \"$MY_REPO\")\n"

   if [ ! -z "$MY_REPO" ] && [ -d "$MY_REPO" ] ; then
      INTERNAL_REPO_ROOT=$MY_REPO
      printf "  Found!\n"
   fi

   if [ -z "$INTERNAL_REPO_ROOT" ] ; then
      printf "  No joy -- checking \$MY_REPO_ROOT_DIR (value \"$MY_REPO_ROOT_DIR\")\n"
      if [ ! -z "$MY_REPO_ROOT_DIR" ] && [ -d "$MY_REPO_ROOT_DIR/cgcs-root" ] ; then
          INTERNAL_REPO_ROOT=$MY_REPO_ROOT_DIR/cgcs-root
          printf "  Found!\n"
      fi
   fi

   if [ -z "$INTERNAL_REPO_ROOT" ] ; then
      printf "  No joy -- checking for \$MY_WORKSPACE/cgcs-root\n"
      if [ -d "$MY_WORKSPACE/cgcs-root" ] ; then
          INTERNAL_REPO_ROOT=$MY_WORKSPACE/cgcs-root
          printf "  Found!\n"
      fi
   fi

   if [ -z "$INTERNAL_REPO_ROOT" ] ; then
      printf "  Error -- could not locate cgcs-root repo.\n"
      exit 1
   fi

   STX_DIR=$INTERNAL_REPO_ROOT/stx

   printf "\nChecking that we can access $DISTRO_REPO_DIR\n"
   if [ ! -d "$DISTRO_REPO_DIR" ] ; then
      printf "  Error -- could not access $DISTRO_REPO_DIR\n"
      exit 1
   fi

   if [ ! -e "$DISTRO_REPO_DIR/repodata" ] ; then
      printf "  Error -- $DISTRO_REPO_DIR is there, but does not seem sane\n"
   fi

   printf "\nOkay, input looks fine...\n\n"
   printf "Creating output directory $OUTPUT_DIST_DIR\n"
   if [ $CLEAN_FLAG -eq 1 ]; then
      echo "  Cleaning..."
      if [ -e $OUTPUT_DIST_DIR ] ; then
         chmod -R a+w $OUTPUT_DIST_DIR
         \rm -rf $OUTPUT_DIST_DIR
      fi
      if [ -e $OUTPUT_DIST_DIR ] ; then
         printf "Error: could not remove old $OUTPUT_DIST_DIR\n"
         exit 1
      fi
   fi

   \mkdir -p $OUTPUT_DIST_DIR
   if [ ! -d $OUTPUT_DIST_DIR ] ; then
      printf "Error: could not create $OUTPUT_DIST_DIR\n"
      exit 1
   fi

   RELEASE_INFO=$STX_DIR/stx-integ/utilities/build-info/release-info.inc
   export PLATFORM_RELEASE=$(source $RELEASE_INFO && echo $PLATFORM_RELEASE)

   # Where BSP files live
   export BSP_FILES_PATH="$STX_DIR/stx-metal/bsp-files"

   echo "  Done"
   echo ""
}

function init_output_dir {
   echo "Creating base output directory in $OUTPUT_DIST_DIR"
   \mkdir -p $OUTPUT_DIST_DIR/isolinux/images
   \mkdir -p $OUTPUT_DIST_DIR/isolinux/ks
   \mkdir -p $OUTPUT_DIST_DIR/isolinux/LiveOS
   \mkdir -p $OUTPUT_DIST_DIR/isolinux/Packages
   \mkdir -p $OUTPUT_DIST_DIR/utils

   \mkdir -p $OUTPUT_DIST_DIR/isolinux/EFI
   # This directory will contains files required for the PXE network installer
   \mkdir -p $OUTPUT_DIST_DIR/isolinux/pxeboot

   echo "  Preparing package lists"
   image_inc_list iso std centos > "${PKGLIST_TI}"
   image_inc_list iso dev centos > "${PKGLIST_DEV}"

   echo "  Copying base files"

   # Generate .discinfo file
   date +%s.%N > $OUTPUT_DIST_DIR/isolinux/.discinfo
   echo $PLATFORM_RELEASE >> $OUTPUT_DIST_DIR/isolinux/.discinfo
   echo "x86_64" >> $OUTPUT_DIST_DIR/isolinux/.discinfo
   
   \cp -L -ru $DISTRO_REPO_DIR/isolinux/* $OUTPUT_DIST_DIR/isolinux/
   \cp -L -ru $DISTRO_REPO_DIR/images/pxeboot $OUTPUT_DIST_DIR/isolinux/images/

   echo "  Installing startup files"

   \cp -L "$BSP_FILES_PATH/centos.syslinux.cfg" "$OUTPUT_DIST_DIR/isolinux/syslinux.cfg"
   \cp -L "$BSP_FILES_PATH/centos.syslinux.cfg" "$OUTPUT_DIST_DIR/isolinux/isolinux.cfg"
   sed -i 's/wr_usb_boot/oe_iso_boot/' $OUTPUT_DIST_DIR/isolinux/isolinux.cfg

   # Modify the isolinux.cfg to auto install if requested
   # Option 0 is Controller(serial). Option 2 is CPE serial.
   if [ "$AUTO_INSTALL" == "controller" ] ; then
       echo "Modifying ISO to auto-install controller load"
       perl -p -i -e 's/timeout 0/timeout 1\ndefault 0/'  $OUTPUT_DIST_DIR/isolinux/isolinux.cfg
   elif [ "$AUTO_INSTALL" == "cpe" ] ; then
       echo "Modifying ISO to auto-install CPE (combined load)"
       perl -p -i -e 's/timeout 0/timeout 1\ndefault 2/'  $OUTPUT_DIST_DIR/isolinux/isolinux.cfg
   fi

   # Modify the device if requested
   if [ ! -z "$DEVICE" ] ; then
       echo "Modifying ISO to use device $DEVICE"
       perl -p -i -e "s/device=sda/device=${DEVICE}/g"  $OUTPUT_DIST_DIR/isolinux/isolinux.cfg
   fi

   # Copy UEFI files 
   \cp -L -ru $DISTRO_REPO_DIR/EFI/* $OUTPUT_DIST_DIR/isolinux/EFI/
   \cp -L "$BSP_FILES_PATH/grub.cfg" "$OUTPUT_DIST_DIR/isolinux/EFI/BOOT/grub.cfg"
   \cp -L "$BSP_FILES_PATH/pxeboot_grub.cfg" "$OUTPUT_DIST_DIR/isolinux/pxeboot/pxeboot_grub.cfg"

   # Update the efiboot.img (See https://wiki.archlinux.org/index.php/Remastering_the_Install_ISO)
   # We need to mount the image file, replace the grub.cfg file with the Titanium Cloud one, and unmount.
   # Script update-efiboot-image will do this. If there is not loop device on the build machine
   # then this script must be executed manually prior.

   if [ ! -e "/dev/loop-control"  -a ! -f "$OUTPUT_DIR/efiboot.img" ]; then
      CMD="export PROJECT=$PROJECT; \
           export SRC_BUILD_ENVIRONMENT=$SRC_BUILD_ENVIRONMENT; \
           export MY_BUILD_ENVIRONMENT=$MY_BUILD_ENVIRONMENT; \
           export MY_BUILD_ENVIRONMENT_FILE=$MY_BUILD_ENVIRONMENT_FILE; \
           export MY_BUILD_DIR=$MY_BUILD_DIR; \
           export MY_WORKSPACE=$MY_WORKSPACE; \
           export MY_REPO=$MY_REPO; \
           export MY_BUILD_CFG=$MY_BUILD_CFG; \
           export MY_MOCK_ROOT=$MY_MOCK_ROOT; \
           export PATH=$MY_REPO/build-tools:\$PATH; \
           export BUILD_ISO_USE_UDEV=$BUILD_ISO_USE_UDEV; \
           export BSP_FILES_PATH=$BSP_FILES_PATH; \
           update-efiboot-image"
      echo $CMD

      if [ "$HOSTNAME" == "yow-cgts3-centos7" ]; then
         echo "Attempting to run update-efiboot-image on yow-cgts3-lx"
         ssh -o StrictHostKeyChecking=no yow-cgts3-lx "$CMD"
         if [ $? -ne 0 ]; then
            echo "Failed to run update-efiboot-image on yow-cgts3-lx"
         fi
      fi

      if [ "$HOSTNAME" == "yow-cgts2-centos7" ]; then
         echo "Attempting to run update-efiboot-image on yow-cgts2-lx"
         ssh -o StrictHostKeyChecking=no yow-cgts2-lx "$CMD"
         if [ $? -ne 0 ]; then
            echo "Failed to run update-efiboot-image on yow-cgts2-lx"
         fi
      fi
   fi

   if [ ! -e "/dev/loop-control"  -a ! -f "$OUTPUT_DIR/efiboot.img" ]; then
      printf "\n**************************************************************************************************** \n"
      printf "No loop device on this machine. Please ensure $OUTPUT_DIR/efiboot.img \n"
      printf "exist prior to executing build-iso by.  It can be created by running \n"
      printf "   $INTERNAL_REPO_ROOT/build-tools/update-efiboot-image \n"
      printf "on a machine that does support a loop device.  Please ensure all standard \n"
      printf "build environment variables are defined (e.g. MY_REPO, MY_WORKSPACE, etc.). \n"
      printf " \n"
      printf "e.g. If building on yow-cgts3-centos7, you'll want to run the script on \n"
      printf "     yow-cgts3-lx which shares the same file system, but supports loop devices \n"
      printf "****************************************************************************************************** \n"
      exit 1
   fi

   if [ -f "$OUTPUT_DIR/efiboot.img" ]; then

      # The script update-efiboot-image was run outside the build-iso script, do nothing.
      printf "  The image file $OUTPUT_DIR/efiboot.img already exists\n"
   else
      printf "  The image file $OUTPUT_DIR/efiboot.img does not exist \n"
      if [ ! -f "$INTERNAL_REPO_ROOT/build-tools/update-efiboot-image" ]; then
          printf "*** Error: script update-efiboot-image does not exist *** \n"
          exit 1
      fi

      # Run the script
      BUILD_ISO_USE_UDEV=$BUILD_ISO_USE_UDEV $INTERNAL_REPO_ROOT/build-tools/update-efiboot-image
      RET=$?
      if [ $RET != 0 ]; then
          printf "*** Error: update-efiboot-image script returned failure $RET *** \n"
          exit 1
      fi

   fi

   \cp -L $OUTPUT_DIR/efiboot.img $OUTPUT_DIST_DIR/isolinux/images/
   \rm -f $OUTPUT_DIR/efiboot.img

   # Copy and set up pxeboot setup files
   \cp "$BSP_FILES_PATH/pxeboot_setup.sh" "$OUTPUT_DIST_DIR/isolinux/pxeboot_setup.sh"
   \cp "$BSP_FILES_PATH/pxeboot.cfg" "$OUTPUT_DIST_DIR/isolinux/pxeboot/pxeboot.cfg"
   chmod +x $OUTPUT_DIST_DIR/isolinux/pxeboot_setup.sh

   \rm -f $OUTPUT_DIST_DIR/comps.xml
   \cp -L $INTERNAL_REPO_ROOT/build-tools/build_iso/comps.xml.gz $OUTPUT_DIST_DIR/
   gunzip $OUTPUT_DIST_DIR/comps.xml.gz

   TMP_DIR=$MY_WORKSPACE/tmp
   \mkdir -p $TMP_DIR
   TMPDIR=$TMP_DIR yum clean all -c $MY_YUM_CONF
   \rm -rf $TMP_DIR/yum-$USER-*
   echo "  Done"
   echo ""
}

function final_touches {
   OLD_PWD=$PWD

   # Update the comps.xml
   if [ ! -f $OUTPUT_DIST_DIR/comps.xml.bak ]; then
      \cp $OUTPUT_DIST_DIR/comps.xml $OUTPUT_DIST_DIR/comps.xml.bak
   fi

   python "$BSP_FILES_PATH/platform_comps.py" \
      --pkgdir "$OUTPUT_DIST_DIR/isolinux/Packages" \
      --groups "$OUTPUT_DIST_DIR/comps.xml"
   if [ $? -ne 0 ]; then
      echo "Failed to update comps.xml"
      exit 1
   fi

   # create the repo
   \cd $OUTPUT_DIST_DIR/isolinux
   $CREATEREPO -q -g ../comps.xml .
   
   # build the ISO
   printf "Building image $OUTPUT_FILE\n"
   \cd $OUTPUT_DIST_DIR
   chmod 664 isolinux/isolinux.bin
   mkisofs -o $OUTPUT_FILE \
      -R -D -A 'oe_iso_boot' -V 'oe_iso_boot' \
      -quiet \
      -b isolinux.bin -c boot.cat -no-emul-boot \
      -boot-load-size 4 -boot-info-table \
      -eltorito-alt-boot \
      -e images/efiboot.img \
            -no-emul-boot \
      isolinux/   

   isohybrid --uefi $OUTPUT_FILE
   implantisomd5 $OUTPUT_FILE

   \cd $OLD_PWD
}

function extract_pkg_from_local_repo {
   local repodir=$1
   local pkgname=$2

   local pkgfile=$(repoquery --repofrompath local,${repodir} --location -q ${pkgname})
   if [ -z "${pkgfile}" ]; then
      echo "Could not find package $pkgname in $repodir"
      exit 1
   fi

   rpm2cpio ${pkgfile/file://} | cpio -idmv
   if [ $? -ne 0 ]; then
      echo "Failed to extract files from ${pkgfile/file://}"
      exit 1
   fi
}

function extract_installer_files {
   # Changes to copied files here must also be reflected in patch-iso

   PKGDIR=$OUTPUT_DIST_DIR/isolinux/Packages

   (
   \cd $OUTPUT_DIR
   \rm -rf kickstarts extra_cfgs kickstart.work
   \mkdir kickstarts extra_cfgs kickstart.work

   echo "Retrieving kickstarts..."

   \cd kickstart.work

   extract_pkg_from_local_repo ${CGCS_REPO_DIR} platform-kickstarts
   extract_pkg_from_local_repo ${CGCS_REPO_DIR} platform-kickstarts-pxeboot
   extract_pkg_from_local_repo ${CGCS_REPO_DIR} platform-kickstarts-extracfgs

   \cp --preserve=all www/pages/feed/rel-*/*.cfg pxeboot/*.cfg ../kickstarts/ &&
   \cp --preserve=all extra_cfgs/*.cfg ../extra_cfgs/
   if [ $? -ne 0 ]; then
      echo "Failed to copy extracted kickstarts"
      exit 1
   fi

   \cd ..

   # Copy kickstarts to ISO
   \cp --preserve=all kickstarts/controller_ks.cfg $OUTPUT_DIST_DIR/isolinux/ks.cfg
   # Modify the kickstart to shutdown instead of reboot if doing an auto install
   if [ ! -z "$AUTO_INSTALL" ] ; then
      sed -i 's/^reboot --eject/shutdown/' $OUTPUT_DIST_DIR/isolinux/ks.cfg
   fi

   \mv kickstarts/pxeboot* $OUTPUT_DIST_DIR/isolinux/pxeboot/
   \cp --preserve=all kickstarts/* $OUTPUT_DIST_DIR/isolinux

   # Update OAM interface for cumulus auto install
   if [ $CUMULUS -eq 1 ]; then
       # Cumulus wants tty1
       perl -p -i -e 's/console=tty0/console=tty1/'  $OUTPUT_DIST_DIR/isolinux/isolinux.cfg

       # CUMULUS setup scripts specify ens3 for OAM
       OAM_IFNAME=ens3

       cat <<EOM >> $OUTPUT_DIST_DIR/isolinux/ks.cfg
%post
#For cumulus tis on tis automated install
cat << EOF > /etc/sysconfig/network-scripts/ifcfg-${OAM_IFNAME}
IPADDR=10.10.10.3
NETMASK=255.255.255.0
BOOTPROTO=static
ONBOOT=yes
DEVICE=${OAM_IFNAME}
MTU=1500
GATEWAY=10.10.10.1
EOF
%end
EOM
   fi

   # For PXE boot network installer

   echo ${OUTPUT_DIST_DIR}/isolinux/Packages

   local WORKDIR=pxe-network-installer.content
   local ORIG_PWD=$PWD

   \rm -rf $WORKDIR
   \mkdir $WORKDIR
   \cd $WORKDIR

   extract_pkg_from_local_repo ${CGCS_REPO_DIR} pxe-network-installer
   extract_pkg_from_local_repo ${CGCS_REPO_DIR} grub2-efi-x64-pxeboot
   extract_pkg_from_local_repo ${CGCS_REPO_DIR} grub2-efi-x64-modules

   \mkdir -p $OUTPUT_DIST_DIR/isolinux/pxeboot/EFI/centos/x86_64-efi

   \cp --preserve=all pxeboot/pxelinux.0 pxeboot/menu.c32 pxeboot/chain.c32 $OUTPUT_DIST_DIR/isolinux/pxeboot &&
   \cp --preserve=all usr/lib/grub/x86_64-efi/* $OUTPUT_DIST_DIR/isolinux/pxeboot/EFI/centos/x86_64-efi/ &&
   \cp --preserve=all pxeboot/EFI/grubx64.efi $OUTPUT_DIST_DIR/isolinux/pxeboot/EFI/
   if [ $? -ne 0 ]; then
      echo "Error: Could not copy all files from installer"
      exit 1
   fi
   
   \cp --preserve=all www/pages/feed/rel-*/LiveOS/squashfs.img $OUTPUT_DIST_DIR/isolinux/LiveOS
   if [ $? -ne 0 ]; then
      echo "Error: Could not copy squashfs from LiveOS"
      exit 1
   fi


   # Replace vmlinuz and initrd.img with our own pre-built ones
   \rm -f \
      $OUTPUT_DIST_DIR/isolinux/vmlinuz \
      $OUTPUT_DIST_DIR/isolinux/images/pxeboot/vmlinuz \
      $OUTPUT_DIST_DIR/isolinux/initrd.img \
      $OUTPUT_DIST_DIR/isolinux/images/pxeboot/initrd.img
   \cp --preserve=all pxeboot/rel-*/installer-bzImage_1.0 \
      $OUTPUT_DIST_DIR/isolinux/vmlinuz &&
   \cp --preserve=all pxeboot/rel-*/installer-bzImage_1.0 \
      $OUTPUT_DIST_DIR/isolinux/images/pxeboot/vmlinuz &&
   \cp --preserve=all pxeboot/rel-*/installer-intel-x86-64-initrd_1.0 \
      $OUTPUT_DIST_DIR/isolinux/initrd.img &&
   \cp --preserve=all pxeboot/rel-*/installer-intel-x86-64-initrd_1.0 \
      $OUTPUT_DIST_DIR/isolinux/images/pxeboot/initrd.img

   if [ $? -ne 0 ]; then
      echo "Error: Failed to copy installer images"
      exit 1
   fi

   \cd $ORIG_PWD
   \rm -rf $WORKDIR
   )
   if [ $? -ne 0 ]; then
      exit 1
   fi
}

function setup_upgrades_files {
   # Changes to copied files here must also be reflected in patch-iso

   # Copy the upgrade files
   UPGRADES_DIR="$OUTPUT_DIST_DIR/isolinux/upgrades"
   \rm -rf $UPGRADES_DIR
   \mkdir -p $UPGRADES_DIR
   \cp "$BSP_FILES_PATH/bsp-files/upgrades/*"  "$UPGRADES_DIR"
   sed -i "s/xxxSW_VERSIONxxx/${PLATFORM_RELEASE}/g" $UPGRADES_DIR/metadata.xml
   chmod +x $UPGRADES_DIR/*.sh
   # Write the version out (used in upgrade scripts - this is the same as SW_VERSION)
   echo "VERSION=$PLATFORM_RELEASE" > $UPGRADES_DIR/version
}

function sign_iso {
    # Sign the .iso with the developer private key
    # Sigining with the formal key is only to be done for customer release
    # builds
    local isofilename=$(basename $OUTPUT_DIR/$DEST_FILE)
    local isofilenoext="${isofilename%.*}"
    openssl dgst -sha256 -sign ${MY_REPO}/build-tools/signing/dev-private-key.pem -binary -out $OUTPUT_DIR/$isofilenoext.sig $OUTPUT_DIR/$DEST_FILE
}

#############################################
# Main code
#############################################

# Check args
HELP=0
CLEAN_FLAG=1 # TODO -- doesn't yet work without --clean
DEST_FILE=bootimage.iso
AUTO_FLAG=0
AUTO_INSTALL=""
CUMULUS=0
SIGN_RPM_FILES=1
DEVICE=""
if [ -z "$BUILD_ISO_USE_UDEV" ]; then
    BUILD_ISO_USE_UDEV=0
fi

# read the options
TEMP=`getopt -o hf:a:d: --long help,file:,auto:,device:,cumulus,clean,skip-sign,sudo,udev -n 'test.sh' -- "$@"`
eval set -- "$TEMP"

# extract options and their arguments into variables.
while true ; do
    case "$1" in
        -h|--help) HELP=1 ; shift ;;
        --clean) CLEAN_FLAG=1 ; shift ;;
        --skip-sign) SIGN_RPM_FILES=0 ; shift ;;
        --cumulus) CUMULUS=1 ; shift ;;
        -f | --file) DEST_FILE="$2"; shift; shift ;;
        -d | --device) DEVICE="$2"; shift; shift ;;
        -a | --auto) AUTO_FLAG=1; AUTO_INSTALL="$2"; shift; shift ;;
        --sudo) BUILD_ISO_USE_UDEV=0 ; shift ;;
        --udev) BUILD_ISO_USE_UDEV=1 ; shift ;;
        --) shift ; break ;;
        *) echo "Internal error!" ; exit 1 ;;
    esac
done

if [ $AUTO_FLAG -eq 1 ]; then
    if [[ "$AUTO_INSTALL" != "controller" && "$AUTO_INSTALL" != "cpe" ]] ; then
            echo "Unsupported --auto value: $AUTO_INSTALL"
            exit 1
    fi
fi

if [ $HELP -eq 1 ]; then
   usage
   exit 0
fi


(
printf "\n*************************\n"
printf   "Create Titanium Cloud/CentOS Boot CD\n"
printf   "*************************\n\n"

# Init variables
init_vars
check_vars
PKGLIST_MINIMAL="${INTERNAL_REPO_ROOT}/build-tools/build_iso/minimal_rpm_list.txt"
PKGLIST_TI="${OUTPUT_DIR}/image.inc"
PKGLIST_DEV="${OUTPUT_DIR}/image-dev.inc"

# Create skeleton build dir
init_output_dir

# Create the vanilla DVD
echo "Copying vanilla CentOS RPMs"
install_pkg_list "${PKGLIST_MINIMAL}"

# Find all CGCS packages
# SAL exit 0
echo "Installing Titanium Cloud packages"
install_pkg_list "${PKGLIST_TI}"
if [ $? -eq 2 ]; then
	exit 1
fi
if [ "x${RELEASE_BUILD}" == "x" ]; then
    echo "Installing Titanium Cloud developer packages"
    install_pkg_list "${PKGLIST_DEV}"
    if [ $? -eq 2 ]; then
        exit 1
    fi
fi

# Extract installer files
extract_installer_files

# Upgrades files
setup_upgrades_files

# add file signatures to all rpms
if [ $SIGN_RPM_FILES -ne 0 ]; then
    sign-rpms -d $OUTPUT_DIST_DIR/isolinux/Packages
    if [ $? -ne 0 ] ; then
	echo "failed to add file signatures to RPMs"
	exit 1
    fi
fi

# Finalize and build ISO
final_touches

# Sign the ISO
sign_iso

make_report "${PKGLIST_MINIMAL}" "${PKGLIST_TI}"

# Check sanity
FILESIZE=$(wc -c <"$OUTPUT_FILE")
if [ $FILESIZE -ge $MINIMUM_EXPECTED_SIZE ]; then
	printf "Done."
        printf "Output file: $OUTPUT_FILE\n\n"
else
	printf "Output file $OUTPUT_FILE smaller than expected -- probable error\n\n"
	exit 1
fi

) 2>&1 | stdbuf -o0 awk '{ print strftime("%H:%M:%S"), $0; fflush(); }' ; exit ${PIPESTATUS[0]}