#!/bin/bash -e
## this script is to update pxeboot images (vmlinuz, initrd.img and squashfs.img).
## based on RPMs generated by "build-pkgs" and "build-iso"
## created by Yong Hu (yong.hu@intel.com), 05/24/2018

# For backward compatibility.  Old repo location or new?
CENTOS_REPO=${MY_REPO}/centos-repo
if [ ! -d ${CENTOS_REPO} ]; then
    CENTOS_REPO=${MY_REPO}/cgcs-centos-repo
    if [ ! -d ${CENTOS_REPO} ]; then
        echo "ERROR: directory ${MY_REPO}/centos-repo not found."
        exit 1
    fi
fi

find_and_copy_rpm () {
    local name="${1}"
    local pattern="${2}"
    local build_type="${3}"
    local dest_dir="${4}"

    echo " --> find ${name} rpm"
    found=$(find $MY_BUILD_DIR/${build_type}/rpmbuild/RPMS -type f -name "${pattern}" | head -n 1)
    if [ ! -n "${found}" ];then
        if [ "${build_type}" != "rt" ]; then
            found=$(find ${CENTOS_REPO}/Binary -type l -name "${pattern}" | head -n 1)
        else
            found=$(find ${CENTOS_REPO}/${build_type}/Binary -type l -name "${pattern}" | head -n 1)
        fi
    fi

    if [ -n "${found}" ] && [ -f "${found}" ];then
        \cp -f "${found}" "${dest_dir}/"
    else
        echo "ERROR: failed to find ${name} RPM!"
        exit -1
    fi
}


echo "Start to update pxe-network-installer images .... "
timestamp=$(date +%F_%H%M)
cur_dir=$PWD

pxe_network_installer_dir=$MY_BUILD_DIR/pxe-network-installer
if [ ! -d $pxe_network_installer_dir ];then
    mkdir -p $pxe_network_installer_dir
fi

cd $pxe_network_installer_dir

echo "step 1: copy original images: vmlinuz, initrd.img, squashfs.img"
orig_img_dir="orig"
if [ ! -d $orig_img_dir ];then
    mkdir -p $orig_img_dir
fi

orig_initrd_img="${CENTOS_REPO}/Binary/images/pxeboot/initrd.img"
if [ -f $orig_initrd_img ]; then
    cp -f $orig_initrd_img $pxe_network_installer_dir/$orig_img_dir/.
else
    echo "$orig_initrd_img does not exit"
    exit -1
fi

orig_squashfs_img="${CENTOS_REPO}/Binary/LiveOS/squashfs.img"
if [ -f $orig_squashfs_img ]; then
    cp -f $orig_squashfs_img $pxe_network_installer_dir/$orig_img_dir/.
else
    echo "$orig_squashfs_img does not exit"
    exit -1
fi

echo ""
echo "step 2: prepare necessary kernel RPMs"
echo ""
kernel_rpms_std="$pxe_network_installer_dir/kernel-rpms/std"
kernel_rpms_rt="$pxe_network_installer_dir/kernel-rpms/rt"

echo "--> get $kernel_rpms_std ready"
echo "--> get $kernel_rpms_rt ready"

if [ -d $kernel_rpms_std ];then
    mv $kernel_rpms_std $kernel_rpms_std-bak-$timestamp
fi
mkdir -p $kernel_rpms_std

if [ -d $kernel_rpms_rt ];then
    mv $kernel_rpms_rt $kernel_rpms_rt-bak-$timestamp
fi
mkdir -p $kernel_rpms_rt

echo " -------- start to search standard kernel rpm and related kernel modules --------"
find_and_copy_rpm 'standard kernel'                  'kernel-[0-9]*.x86_64.rpm'                     std "$kernel_rpms_std"
find_and_copy_rpm 'standard kernel core'             'kernel-core-[0-9]*.x86_64.rpm'                std "$kernel_rpms_std"
find_and_copy_rpm 'standard kernel modules'          'kernel-modules-[0-9]*.x86_64.rpm'             std "$kernel_rpms_std"
find_and_copy_rpm 'standard kernel modules extra'    'kernel-modules-extra-[0-9]*.x86_64.rpm'       std "$kernel_rpms_std"
find_and_copy_rpm 'standard kernel modules internal' 'kernel-modules-internal-[0-9]*.x86_64.rpm'    std "$kernel_rpms_std"
find_and_copy_rpm 'e1000e kernel module'             'kmod-e1000e-[0-9]*.x86_64.rpm'                std "$kernel_rpms_std"
find_and_copy_rpm 'i40e kernel module'               'kmod-i40e-[0-9]*.x86_64.rpm'                  std "$kernel_rpms_std"
find_and_copy_rpm 'ixgbe kernel module'              'kmod-ixgbe-[0-9]*.x86_64.rpm'                 std "$kernel_rpms_std"
find_and_copy_rpm 'mlnx-ofa kernel module'           'mlnx-ofa_kernel-modules-[0-9]*.x86_64.rpm'    std "$kernel_rpms_std"
echo " -------- successfully found standard kernel rpm and related kernel modules --------"
echo ""

rootfs_rpms="$pxe_network_installer_dir/rootfs-rpms"
if [ -d $rootfs_rpms ];then
    mv $rootfs_rpms $rootfs_rpms-bak-$timestamp
fi
mkdir -p $rootfs_rpms

echo " step 3:  start to search rpms for rootfs"
find_and_copy_rpm 'anaconda'                   'anaconda-[0-9]*.x86_64.rpm'                   installer "$rootfs_rpms/."
find_and_copy_rpm 'anaconda-core'              'anaconda-core-[0-9]*.x86_64.rpm'              installer "$rootfs_rpms/."
find_and_copy_rpm 'anaconda-tui'               'anaconda-tui-[0-9]*.x86_64.rpm'               installer "$rootfs_rpms/."
find_and_copy_rpm 'anaconda-widgets'           'anaconda-widgets-[0-9]*.x86_64.rpm'           installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm'                        'rpm-[0-9]*.x86_64.rpm'                        installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm-build'                  'rpm-build-[0-9]*.x86_64.rpm'                  installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm-build-libs'             'rpm-build-libs-[0-9]*.x86_64.rpm'             installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm-libs'                   'rpm-libs-[0-9]*.x86_64.rpm'                   installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm-plugin-systemd-inhibit' 'rpm-plugin-systemd-inhibit-[0-9]*.x86_64.rpm' installer "$rootfs_rpms/."
find_and_copy_rpm 'rpm-python'                 'rpm-python-[0-9]*.x86_64.rpm'                 installer "$rootfs_rpms/."

find_and_copy_rpm 'systemd'       'systemd-[0-9]*.x86_64.rpm'       std "$rootfs_rpms/."
find_and_copy_rpm 'systemd-libs'  'systemd-libs-[0-9]*.x86_64.rpm'  std "$rootfs_rpms/."
find_and_copy_rpm 'systemd-sysv'  'systemd-sysv-[0-9]*.x86_64.rpm'  std "$rootfs_rpms/."
find_and_copy_rpm 'lz4'           'lz4-[0-9]*.x86_64.rpm'           std "$rootfs_rpms/."
find_and_copy_rpm 'bind-utils'    'bind-utils-[0-9]*.x86_64.rpm'    std "$rootfs_rpms/."
find_and_copy_rpm 'ima-evm-utils' 'ima-evm-utils-[0-9]*.x86_64.rpm' std "$rootfs_rpms/."
echo " ---------------- successfully found rpms for rootfs --------------------------------"

echo "step 4: make installer images in this work dir"
same_folder="$(dirname ${BASH_SOURCE[0]})"
mk_images_tool="$same_folder/make-installer-images.sh"
sudo $mk_images_tool $pxe_network_installer_dir

cd $cur_dir
echo "updating pxe-network-installer images -- done!"