#!/bin/bash

basedir=$(pwd)
if [ -z "$KSRC" ]; then
    echo "Kernel source KSRC= not specified"
    exit 1
fi

VERSION=$(grep "^VERSION" $KSRC/Makefile | grep -Eo '[0-9]{1,4}')
PATCHLEVEL=$(grep "^PATCHLEVEL" $KSRC/Makefile | grep -Eo '[0-9]{1,4}')
SUBLEVEL=$(grep "^SUBLEVEL" $KSRC/Makefile | grep -Eo '[0-9]{1,4}')
KERNEL_VER="$VERSION.$PATCHLEVEL.$SUBLEVEL-amd64-vyos"

pkgdir="$basedir/packages"
if [ ! -d "$basedir/packages" ]; then
    mkdir $basedir/packages
fi

URLS=" \
    https://downloadmirror.intel.com/14687/eng/ixgbe-5.5.5.tar.gz \
    https://downloadmirror.intel.com/13663/eng/igb-5.3.5.22.tar.gz \
    https://downloadmirror.intel.com/15817/eng/e1000e-3.4.2.1.tar.gz \
    https://downloadmirror.intel.com/24411/eng/i40e-2.7.29.tar.gz \
    https://downloadmirror.intel.com/28725/eng/ixgbevf-4.5.2.tar.gz
    https://downloadmirror.intel.com/24693/eng/i40evf-3.6.15.tar.gz \
"

# The intel IGBVF driver can't be compiled with recent Kernel versions
# due to interlanl API changes. Driver is from 10.09.2015
# Source code is here: https://downloadmirror.intel.com/18298/eng/igbvf-2.3.9.6.tar.gz
for URL in $URLS
do
    cd $pkgdir
    filename=${URL##*/}
    dirname_full=$(echo $filename | awk -F".tar.gz" '{print $1}')
    dirname=$(echo $dirname_full | awk -F- '{print $1}')
    version="$(echo $dirname_full | awk -F- '{print $2}')-0"
    deb_pkg=${dirname}_${version}_amd64
    deb_pkg_dir=$pkgdir/vyos-intel-${deb_pkg}

    if [ -d "$dirname_full" ]; then
        rm -rf $dirname_full
    fi
    if [ -d "$deb_pkg_dir" ]; then
        rm -rf $deb_pkg_dir
    fi
    if [ ! -f "$filename" ]; then
        wget ${URL}
        ret=$?
        if [ "$ret" != "0" ]; then
            echo "Download of ${URL} failed!"
            exit $ret
        fi
    fi

    tar xf $filename
    cd $dirname_full/src

    KSRC=$KSRC INSTALL_MOD_PATH=$deb_pkg_dir \
        make -j $(cat /proc/cpuinfo | grep processor | wc -l) install

    mkdir -p $deb_pkg_dir/DEBIAN
    echo "9" >$deb_pkg_dir/DEBIAN/compat
    echo "Package: vyos-intel-$dirname" >$deb_pkg_dir/DEBIAN/control
    echo "Version: $version" >>$deb_pkg_dir/DEBIAN/control
    echo "Section: kernel" >>$deb_pkg_dir/DEBIAN/control
    echo "Priority: extra" >>$deb_pkg_dir/DEBIAN/control
    echo "Architecture: amd64" >>$deb_pkg_dir/DEBIAN/control
    echo "Maintainer: VyOS Package Maintainers <maintainers@vyos.net>" >>$deb_pkg_dir/DEBIAN/control
    echo "Installed-Size: 9" >>$deb_pkg_dir/DEBIAN/control
    echo "Description: Intel Vendor driver for $dirname" >>$deb_pkg_dir/DEBIAN/control
    echo "  Replacement for the in Kernel drivers" >>$deb_pkg_dir/DEBIAN/control

    # Cleanup files which might also be present in linux-image-4.19.20-amd64-vyos
    rm -rf $deb_pkg_dir/usr $deb_pkg_dir/lib/modules/$KERNEL_VER/modules.*

    cd $pkgdir
    dpkg-deb --build $(basename $deb_pkg_dir)
done