roms: rewrite scripts/refresh-pxe-roms.sh

# Usage: Run from root of qemu tree

# ./scripts/refresh-pxe-roms.sh

QEMU_DIR=$PWD

ROM_DIR="pc-bios"

BUILD_DIR="roms/ipxe"

LOCAL_CONFIG="src/config/local/general.h"

function cleanup ()

{

    if [ -n "$SAVED_CONFIG" ]; then

        cp "$SAVED_CONFIG" "$BUILD_DIR"/"$LOCAL_CONFIG"

        rm "$SAVED_CONFIG"

    fi

    cd "$QEMU_DIR"

}

function make_rom ()

{

    cd "$BUILD_DIR"/src

    BUILD_LOG=$(mktemp)

    echo Building "$2"...

    make bin/"$1".rom > "$BUILD_LOG" 2>&1

    if [ $? -ne 0 ]; then

        echo Build failed

        tail --lines=100 "$BUILD_LOG"

        rm "$BUILD_LOG"

        cleanup

        exit 1

    fi

    rm "$BUILD_LOG"

    cp bin/"$1".rom "$QEMU_DIR"/"$ROM_DIR"/"$2"

    cd "$QEMU_DIR"

}

if [ ! -d "$QEMU_DIR"/"$ROM_DIR" ]; then

    echo "error: can't find $ROM_DIR directory," \

         "run me from the root of the qemu tree"

    exit 1

targets="pxerom"

if test -x "$(which EfiRom 2>/dev/null)"; then

    targets="$targets efirom"

fi

if [ ! -d "$BUILD_DIR"/src ]; then

    echo "error: $BUILD_DIR not populated, try:"

    echo "  git submodule init $BUILD_DIR"

    echo "  git submodule update $BUILD_DIR"

    exit 1

fi

if [ -e "$BUILD_DIR"/"$LOCAL_CONFIG" ]; then

    SAVED_CONFIG=$(mktemp)

    cp "$BUILD_DIR"/"$LOCAL_CONFIG" "$SAVED_CONFIG"

fi

echo "#undef BANNER_TIMEOUT" > "$BUILD_DIR"/"$LOCAL_CONFIG"

echo "#define BANNER_TIMEOUT 0" >> "$BUILD_DIR"/"$LOCAL_CONFIG"

IPXE_VERSION=$(cd "$BUILD_DIR" && git describe --tags)

if [ -z "$IPXE_VERSION" ]; then

    echo "error: unable to retrieve git version"

    cleanup

    exit 1

fi

echo "#undef PRODUCT_NAME" >> "$BUILD_DIR"/"$LOCAL_CONFIG"

echo "#define PRODUCT_NAME \"iPXE $IPXE_VERSION\"" >> "$BUILD_DIR"/"$LOCAL_CONFIG"

make_rom 8086100e pxe-e1000.rom

make_rom 80861209 pxe-eepro100.rom

make_rom 10500940 pxe-ne2k_pci.rom

make_rom 10222000 pxe-pcnet.rom

make_rom 10ec8139 pxe-rtl8139.rom

make_rom 1af41000 pxe-virtio.rom

echo done

cleanup

cd roms

make -j4 $targets || exit 1

make clean