#!/bin/sh

set -ex

if [ $# -ne 2 ]; then
  echo "Error: 2 parameters are required."
  exit 1
fi

if [ "$1" != "--upstream-version" ]; then
  echo "Error: First parameter needs to be --upstream-version."
  exit 1
fi

UPSTREAM_VERSION=$2
ORIG_TARBALL=`readlink -e ../`/VirtualBox-${UPSTREAM_VERSION}.tar.bz2

REAL_TARBALL=`readlink -f ${ORIG_TARBALL}`

WORKING_DIR=`dirname ${ORIG_TARBALL}`

ORIG_TARBALL_DFSG=`echo ${ORIG_TARBALL} | sed -e "s/\(${UPSTREAM_VERSION}\)\(\.orig\)/\1-dfsg/g" | sed -e "s/VirtualBox/virtualbox/g"`
ORIG_TARBALL_DIR=`echo ${ORIG_TARBALL_DFSG} | sed -e "s/_\(${UPSTREAM_VERSION}\)/-\1/g" -e "s/\.tar\.bz2//g"`
ORIG_TARBALL_DIR_STRIP=`basename ${ORIG_TARBALL_DIR}`
DEST_TARBALL_NAME=`echo ${ORIG_TARBALL_DIR} | sed -e "s#-\(${UPSTREAM_VERSION}\)#_\1#g"`-dfsg.orig.tar.xz

mkdir -p ${ORIG_TARBALL_DIR}
tar --directory=${ORIG_TARBALL_DIR} --strip 1 -xjf ${REAL_TARBALL} || exit 1
rm -f  ${ORIG_TARBALL} ${REAL_TARBALL}

rm -fr ${ORIG_TARBALL_DIR}/debian
rm -fr ${ORIG_TARBALL_DIR}/kBuild
rm -fr ${ORIG_TARBALL_DIR}/tools
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/os2
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/WINNT
rm -f  ${ORIG_TARBALL_DIR}/VBox/HostDrivers/Support/darwin/load.sh
rm -f  ${ORIG_TARBALL_DIR}/include/VBox/VBoxGuest.inc
rm -f  ${ORIG_TARBALL_DIR}/include/VBox/VBoxGuest16.h
rm -f  ${ORIG_TARBALL_DIR}/include/VBox/VBoxGuest.mac
rm -f  ${ORIG_TARBALL_DIR}/src/libs/xpcom18a4/xpcom/MoreFiles/FSCopyObject.c
rm -f  ${ORIG_TARBALL_DIR}/src/libs/xpcom18a4/xpcom/MoreFiles/FSCopyObject.h
rm -fr ${ORIG_TARBALL_DIR}/src/libs/curl*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libpng*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/openssl*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libxml2*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libxslt*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/liblzf*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/liblzma*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libogg*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libtpms*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/libvorbis*
rm -fr ${ORIG_TARBALL_DIR}/src/libs/zlib*
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/linux/selinux-fedora
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/3D/mesa/mesa-*
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/x11/x11include
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Additions/x11/x11stubs
rm -fr ${ORIG_TARBALL_DIR}/src/libs/kStuff/kStuff/kLdr/testcase/bin
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/AArch64/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/Arm/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/Ebc/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/Ia32/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/Ipf/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/FatBinPkg/EnhancedFatDxe/X64/Fat.efi
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/StdLib/LibC/Main/Ia32/ftol2.obj
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Devices/EFI/Firmware/BaseTools/Source/Python/UPT/Dll/sqlite3.dll
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/Main/webservice/jaxlibs/*.jar
rm -fr ${ORIG_TARBALL_DIR}/src/VBox/HostDrivers/Support/win/winstub.com

tar --exclude .svn --exclude '.git*' --exclude debian --directory ${WORKING_DIR} -cJf ${DEST_TARBALL_NAME} ${ORIG_TARBALL_DIR_STRIP} || exit 1
rm -rf ${ORIG_TARBALL_DIR}

echo "Done, now you can run:"
echo "gbp import-orig ../${DEST_TARBALL_NAME}"