#!/bin/bash

# Copyright 2020  Ciprian Stingu <ciprian dot stingu at gmail dot com>
# Repackage of AUR : opencl-amd.git for Slackware
#
# Original credits of AUR : opencl-amd.git
# Maintainer: Christopher Snowhill <kode54 at gmail dot com>
# Contributor: ipha <ipha00 at gmail dot com>
# Contributor: johnnybash <georgpfahler at wachenzell dot org>
# Contributor: grmat <grmat at sub dot red>
#
# 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.


PRGNAM="opencl-amd"
VERSION=${VERSION:-19.50}
MINVER="967956"
AMDVER="2.4.99"
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

SRCNAM="amdgpu-pro-${VERSION}-${MINVER}-ubuntu-18.04"
CLINFO_SHARED="opt/amdgpu-pro/bin"
OPENCL_SHARED="opt/amdgpu-pro/lib/x86_64-linux-gnu"
LIBDRM_SHARED="opt/amdgpu/lib/x86_64-linux-gnu"

# Allow $ARCH to be preset before running the script.  This is useful in the
# case where someone is running a 32-bit chroot environment under an x86_64
# kernel:
ARCH=${ARCH:-$(uname -m)}

case "$ARCH" in
  x86_64) DEBARCH="amd64" ; LIBDIRSUFFIX="64" ; ARCH=x86_64 ;;
  *) echo "Package for $(uname -m) architecture is not available." ; exit 1 ;;
esac

if [ ! $UID = 0 ]; then
  cat << EOF

This script must be run as root.

EOF
  exit 1
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG="${TMP}/package-${PRGNAM}"
SRCDIR="${TMP}/${SRCNAM}"
OUTPUT=${OUTPUT:-/tmp}

rm -rf "${PKG}"
mkdir -p "${TMP}" "${PKG}" "${OUTPUT}"
cd "${TMP}"

rm -rf ${SRCDIR}
tar -xf "${CWD}/${SRCNAM}.tar.xz"

rm -rf "${TMP}/opencl"
rm -rf "${TMP}/libdrm"

#start AUR : opencl-amd.git
mkdir -p "${TMP}/opencl"
cd "${TMP}/opencl"
# clinfo
ar x "${SRCDIR}/clinfo-amdgpu-pro_${VERSION}-${MINVER}_${DEBARCH}.deb"
tar xJf "data.tar.xz"
# pal
ar x "${SRCDIR}/opencl-amdgpu-pro-icd_${VERSION}-${MINVER}_${DEBARCH}.deb"
tar xJf "data.tar.xz"
ar x "${SRCDIR}/opencl-amdgpu-pro-comgr_${VERSION}-${MINVER}_${DEBARCH}.deb"
tar xJf "data.tar.xz"
# orca
ar x "${SRCDIR}/opencl-orca-amdgpu-pro-icd_${VERSION}-${MINVER}_${DEBARCH}.deb"
tar xJf "data.tar.xz"
cd "${OPENCL_SHARED}"
sed -i "s|libdrm_amdgpu|libdrm_amdgpo|g" libamdocl-orca64.so
# libdrm
mkdir -p "${TMP}/libdrm"
cd "${TMP}/libdrm"
ar x "${SRCDIR}/libdrm-amdgpu-amdgpu1_${AMDVER}-${MINVER}_${DEBARCH}.deb"
tar xJf "data.tar.xz"
cd "${LIBDRM_SHARED}"
rm "libdrm_amdgpu.so.1"
mv "libdrm_amdgpu.so.1.0.0" "libdrm_amdgpo.so.1.0.0"
ln -s "libdrm_amdgpo.so.1.0.0" "libdrm_amdgpo.so.1"

mv "${TMP}/opencl/etc" "${PKG}/"
mkdir -p "${PKG}/usr/lib${LIBDIRSUFFIX}"
mkdir -p "${PKG}/usr/bin"
# clinfo
mv "${TMP}/opencl/${CLINFO_SHARED}/clinfo" "${PKG}/usr/bin/"
# pal
mv "${TMP}/opencl/${OPENCL_SHARED}/libamdocl64.so" "${PKG}/usr/lib${LIBDIRSUFFIX}/"
mv "${TMP}/opencl/${OPENCL_SHARED}/libamd_comgr.so" "${PKG}/usr/lib${LIBDIRSUFFIX}/"
# orca
mv "${TMP}/opencl/${OPENCL_SHARED}/libamdocl-orca64.so" "${PKG}/usr/lib${LIBDIRSUFFIX}/"
mv "${TMP}/opencl/${OPENCL_SHARED}/libamdocl12cl64.so" "${PKG}/usr/lib${LIBDIRSUFFIX}/"
# libdrm
mv "${TMP}/libdrm/${LIBDRM_SHARED}/libdrm_amdgpo.so.1.0.0" "${PKG}/usr/lib${LIBDIRSUFFIX}/"
mv "${TMP}/libdrm/${LIBDRM_SHARED}/libdrm_amdgpo.so.1" "${PKG}/usr/lib${LIBDIRSUFFIX}/"

mkdir -p "${PKG}/opt/amdgpu/share/libdrm"
cd "${PKG}/opt/amdgpu/share/libdrm"
ln -s "/usr/share/libdrm/amdgpu.ids" "amdgpu.ids"

rm -rf "${TMP}/opencl"
rm -rf "${TMP}/libdrm"
#end AUR : opencl-amd.git

mkdir -p "${PKG}/install"
cat "${CWD}/slack-desc" > "${PKG}/install/slack-desc"

cd ${PKG}
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

/sbin/makepkg -l y -c n "${OUTPUT}/${PRGNAM}-${VERSION}-${MINVER}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz}"