#!/bin/sh

SUDO=sudo
MOUNTBASE=/data/tmp
rootimage=/boot/i386/root
srcfiles=/opt/yast/public/gtk

copy_file()
{
    $SUDO mkdir -p "$1/$2"
    $SUDO cp -a "$2/$3" "$1/$2"
}

rewrite()
{
    dir=$1
    yastlib="$dir/usr/lib/YaST2"
    yastshare="$dir/usr/share/YaST2"
    echo "Re-writing $1"
    echo -n "  pruning qt..."
    $SUDO cp -f "$srcfiles/integrate/YaST2.call" \
		"$yastlib/startup"
#debugging
    $SUDO cp -f "$srcfiles/integrate/YaST2.Second-Stage" \
		"$yastlib/startup"
    $SUDO cp -f "$srcfiles/integrate/logging.sh" \
		"$yastlib/startup/common"
#/debugging
    $SUDO rm -f "$yastshare/locale/*/LC_MESSAGES/packages-qt.mo"
    $SUDO rm -f "$yastdir/plugin/libpy2qt*"
    $SUDO rm -Rf "$dir/usr/lib/qt3"
    $SUDO rm -f "$dir/usr/lib/libqt-mt*"
    echo " done"

    echo -n "  installing gtk..."
    $SUDO cp -a /usr/lib/YaST2/plugin/libpy2gtk* "$yastlib/plugin"
    echo " done"

    # gnome libs
    for lib in libgtk-x11-2.0.so.0 libgdk-x11-2.0.so.0 libatk-1.0.so.0 libgdk_pixbuf-2.0.so.0 libpangocairo-1.0.so.0 libpango-1.0.so.0 libgmodule-2.0.so.0 libgthread-2.0.so.0 libpangoft2-1.0.so.0; do
	$SUDO cp -a /opt/gnome/lib/$lib* "$dir/opt/gnome/lib"
	$SUDO strip $dir/opt/gnome/lib/$lib*
    done

    # system libs
    # FIXME - if for same system, use same libzypp ...
    for lib in libcairo.so.2 libglitz.so.1 libdbus-1.so.2 libzypp.so.1; do
	$SUDO cp -a /usr/lib/$lib* "$dir/usr/lib"
	$SUDO strip $dir/usr/lib/$lib*
    done

    # pango modules
    copy_file $dir "/opt/gnome/lib/pango/1.4.0/modules" "pango-basic-fc.so"
    copy_file $dir "/opt/gnome/lib/pango/1.4.0/modules" "pango-indic-fc.so"
    copy_file $dir "/opt/gnome/lib/pango/1.4.0/modules" "pango-arabic-fc.so"
    # generate config ...
    PANGORC=`mktemp $MOUNTBASE/ygtk-pangorc.XXXXXX`
    PANGO_MODULES=`mktemp $MOUNTBASE/ygtk-modules.XXXXXX`
echo "[Pango]
ModulesPath=$dir/opt/gnome/lib/pango/1.4.0/modules
" > $PANGORC
    PANGO_RC_FILE=$PANGORC pango-querymodules | sed "s|$dir||g" > $PANGO_MODULES
    $SUDO mkdir -p "$dir/etc/opt/gnome/pango"
    $SUDO mv $PANGO_MODULES "$dir/etc/opt/gnome/pango/pango.modules"
    rm -f $PANGORC

    echo "  testing..."
    if LD_LIBRARY_PATH="$dir/lib:$dir/usr/lib:$dir/opt/gnome/lib" ldd $yastlib/plugin/libpy2gtk.so > /dev/null; then
	echo "warning: failed to link";
    fi
}

printhelp()
{
    echo "Usage: $0 [OPTIONS] <source-ISO> <dest-ISO>"
    echo
    echo "OPTIONS:"
    echo "    -h, --help: help";
    echo
}

if (test "z$1" = 'z-h') || (test "z$1" = 'z--help'); then
    printhelp; exit 0;
fi

source=$1
dest=$2

if (test "z$source" = "z") || (test "z$dest" = "z"); then
    printhelp; exit 1;
fi

mkcramfs=`which mkcramfs 2>/dev/null`
if (test "z$mkcramfs" = "z") || (! test -x $mkcramfs); then
	echo "Must have cramfs installed."
	exit 1;
fi

echo "copy from $source $dest";

ISODIR=`mktemp -d $MOUNTBASE/ygtk-iso.XXXXXX`
$SUDO mount -o loop $source $ISODIR
echo "Mounted $source"

ROOTDIR=`mktemp -d $MOUNTBASE/ygtk-oldroot.XXXXXX`
$SUDO mount -o loop "$ISODIR$rootimage" $ROOTDIR
echo "Mounted old root"

NEWROOT=`mktemp -d $MOUNTBASE/ygtk-newroot.XXXXXX`
echo "Creating new root at $NEWROOT"
echo -n "  copying..."
# do this to preserve hard links
$SUDO tar -C $ROOTDIR -O -c . | $SUDO tar -x -C $NEWROOT >& /dev/null
echo " done"
$SUDO umount $ROOTDIR
rmdir $ROOTDIR

# Do the interesting work ...
rewrite $NEWROOT
# End of interesting work ...

echo -n "Compressing image..."
NEWROOTFS=`mktemp $MOUNTBASE/ygtk-cramfs.XXXXXX`
$SUDO $mkcramfs $NEWROOT $NEWROOTFS
echo " done"

echo -n "Creating new CD image..."
NEWIMAGE=`mktemp -d $MOUNTBASE/ygtk-newimage.XXXXXX`
$SUDO cp -a $ISODIR/* $NEWIMAGE
$SUDO cp -a $NEWROOTFS "$NEWIMAGE$rootimage"
$SUDO umount $ISODIR
rmdir $ISODIR
echo " done"

cd $NEWIMAGE ; $SUDO mkisofs -p "Yast-GTK installer" -publisher "Fools, Inc." \
     -r -J -f -pad -no-emul-boot -boot-load-size 4 -boot-info-table \
    -b boot/i386/loader/isolinux.bin -c boot/i386/boot.catalog -hide \
    boot/i386/boot.catalog -hide-joliet boot/i386/boot.catalog -A \
    "SUSE-Yast-GTK#0" -V SU1010.001 -o $dest .

echo "Done new iso in $dest."
echo -n "Cleaning up..."
$SUDO rm -Rf $NEWROOTFS
$SUDO rm -Rf $NEWIMAGE
echo " done."