#!/bin/bash

hvbuild()
{
    # Check if kernel sources are still in /usr/src.
    # If not, recopy them.
    if [ ! -d /usr/src/${PACKAGE} ]; then
        # Decompress kernel sources
        decompress_package ${PACKAGE} /usr/src
    fi

    # Copy kernel configuration file in source tree.
    cp -v ${SCRDIR}/../config/${KERNEL_CONFIG} /usr/src/${PACKAGE}/.config

    # Install HV kernel compilation script:
    VERSION=$(get_pkg_ver ${PACKAGE})
    SCRIPT=/usr/src/compile-kernel

    echo "#!/bin/bash" > ${SCRIPT}
    echo "set -o errexit" >> ${SCRIPT}
    echo "KERNEL_VERSION=${VERSION}" >> ${SCRIPT}
    echo "KERNEL_NAME=clfs-\${KERNEL_VERSION}" >> ${SCRIPT}
    echo "DEST=/boot" >> ${SCRIPT}
    echo "ARCH=${HVL_TARGET}" >> ${SCRIPT}
    echo "unset CROSS_COMPILE" >> ${SCRIPT}
    echo "" >> ${SCRIPT}
    echo "make" >> ${SCRIPT}
    echo "make modules" >> ${SCRIPT}
    echo "make modules_install" >> ${SCRIPT}
    echo "cp -v arch/${HVL_TARGET}/boot/bzImage \${DEST}/vmlinuz-\${KERNEL_NAME}" >> ${SCRIPT}
    echo "cp -v System.map \${DEST}/System.map-\${KERNEL_NAME}" >> ${SCRIPT}
    echo "cp -v .config \${DEST}/config-\${KERNEL_NAME}" >> ${SCRIPT}

    chmod -v u+x ${SCRIPT}

    cd ${LFS}/usr/src/${PACKAGE}

    # The 'yes' command repeatedly output a line with all specified string, or
    # 'y' by default. So, you can use it to simply "press enter", which will
    # result in using the defaults value for the 'make oldconfig' command.
    yes "" | make oldconfig

    # Execute compilation script
    ${SCRIPT}
}