#!/bin/sh

# Heavily based on the Slackware 13.1 SlackBuild
# Written by Tommaso D'Anna aka tasodan ( www.slacky.eu )
# Last build from Tommaso D'Anna aka tasodan ( www.slacky.eu )

# Slackware build script for Nvidia Proprietary Binary Video Driver (kernel module)
# Official Site: http://www.nvidia.com

# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AS IS AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}"' ERR

# Catch variables:
PKGNAME=${VERSION:-nvidia-kernel}
KERNEL=${KERNEL:-`uname -r`}
VERSION=${VERSION:-260.19.29}
BUILD=${BUILD:-1}
TAG=${TAG:-sl}
ARCH=${ARCH:-i486}

CWD=$(pwd)
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
PKG=$TMP/package-$PKGNAME
OUTPUT=${OUTPUT:-$CWD}

case "$ARCH" in
  i[4-6]86) TARGET="x86" ; SRCSUFFIX="" ;;
    x86_64) TARGET="x86_64" ; SRCSUFFIX="-no-compat32" ;;
         *) echo "error: unknown or invalid ARCH=$ARCH... aborting the build"; exit 1 ;;
esac

SOURCE="ftp://download.nvidia.com/XFree86/Linux-$TARGET/$VERSION/NVIDIA-Linux-$TARGET-$VERSION$SRCSUFFIX.run"

# Source file availability:
if [ ! -e $CWD/NVIDIA-Linux-$TARGET-$VERSION$SRCSUFFIX.run ];then
  wget $SOURCE
fi

# Create working directories:
rm -rf $TMP
mkdir -p $TMP $PKG $OUTPUT

# Extract the sources:
cd $TMP
sh $CWD/NVIDIA-Linux-$TARGET-$VERSION$SRCSUFFIX.run --extract-only
cd NVIDIA-Linux-$TARGET-$VERSION$SRCSUFFIX/kernel

chown -R root:root .
chmod -R u+w,go+r-w,a-s .

echo -e "\E[0;32m+--------------------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild nvidia-kernel |\E[0;0m"
echo -e "\E[0;32m+--------------------------------+\E[0;0m"

# Build kernel module:
make SYSSRC=/lib/modules/$KERNEL/build module
install -D -m664 nvidia.ko $PKG/lib/modules/$KERNEL/kernel/drivers/video/nvidia.ko

# Add documentation:
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
ln -s $PKGNAME-$VERSION $PKG/usr/doc/$PKGNAME-${VERSION}_$(basename $KERNEL | tr - _)
cp -a README.template $PKG/usr/doc/$PKGNAME-$VERSION
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/$PKGNAME.SlackBuild
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/slack-desc
cat $CWD/README.Slackware > $PKG/usr/doc/$PKGNAME-$VERSION/README.Slackware

# Add slack-desc, doinst.sh and slack-required:
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh
sed -i "s/@KERNEL@/$KERNEL/" $PKG/install/doinst.sh
sed -i "s/@VERSION@/${VERSION}_$(basename $KERNEL | tr - _)/" $PKG/install/doinst.sh

if [ -x "$(which requiredbuilder 2>/dev/null)" ];then
  requiredbuilder -y -v -s $CWD $PKG
fi

# Make the package:
cd $PKG
chown -R root:root $PKG

/sbin/makepkg -l y -c n \
  $OUTPUT/$PKGNAME-${VERSION}_$(basename $KERNEL | tr - _)-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP $PKG
fi