#!/bin/bash

# Slackware build script for protobuf3

# Copyright 2017-2022 Willy Sudiarto Raharjo <willysr@slackbuilds.org>
# All rights reserved.
#
# 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.

wget -c https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protobuf-26.0.tar.gz

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=protobuf3
SRCNAM=protobuf
VERSION=${VERSION:-26.0}
TAG=_gfs
BUILD=${BUILD:-1}
PKGTYPE=${PKGTYPE:-txz}

ABSL=https://github.com/abseil/abseil-cpp.git
_commit=fb3621f4f897824c0dbe0615fa94543df6192f30

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/gfs}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-$CWD}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -march=armv8-a -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tar.?z*
cd $SRCNAM-$VERSION
patch -Np1 -i $CWD/protobuf-21.12-pep517.patch
patch -Np1 -i $CWD/soversion.patch
sed -e 's|c++14|c++17|' -i python/dist/setup.py
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 {} \;
cd third_party ; git clone $ABSL ; cd abseil-cpp ; git checkout $_commit ; cd ../../

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DMAN_INSTALL_DIR=/usr/man \
    -Dprotobuf_BUILD_SHARED_LIBS=ON \
    -Dprotobuf_USE_EXTERNAL_GTEST=ON \
    -Dprotobuf_BUILD_TESTS=OFF \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  make install/strip DESTDIR=$PKG
cd ..

# Install the python bindings
cd python
cp -a dist/setup.py .
  LDFLAGS+=" -L../build" \
  PROTOC=../build/protoc \
python3 -m build --wheel --no-isolation
python3 -m installer --destdir "$PKG" dist/*.whl
cd ..

rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/*.la

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a *.bazel *.txt LICENSE *.md $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
if [ -f $CWD/slack-required ]; then cat $CWD/slack-required > $PKG/install/slack-required; fi
if [ -f $CWD/slack-suggests ]; then cat $CWD/slack-suggests > $PKG/install/slack-suggests; fi
if [ -f $CWD/slack-conflicts ]; then cat $CWD/slack-conflicts > $PKG/install/slack-conflicts; fi

cd $PKG
if [ -f $CWD/slack-required ]; then cat $CWD/slack-required > $PKG/usr/doc/$PRGNAM-$VERSION/slack-required; fi
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE