#!/bin/bash

# Slackware build script for gtest

# 2013-02-12 Bernski Comadizo <bcomadizo@gmail.com> Cebu
# Copyright 2016  Dimitris Zlatanidis  Orestiada, Greece
#
# 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.

PRGNAM=gtest
SRCNAM=googletest
VERSION=${VERSION:-1.10.0}
BUILD=${BUILD:-3}
TAG=${TAG:-_SBo}

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

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

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 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-release-$VERSION
tar -xvf $CWD/$SRCNAM-release-$VERSION.tar.gz
cd $SRCNAM-release-$VERSION
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 {} \;

for i in $CWD/patches/* ; do patch -p1 < $i ; done

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_LIBDIR=lib$LIBDIRSUFFIX \
    -DBUILD_SHARED_LIBS=ON \
    -DCMAKE_SKIP_RPATH=ON \
    -DCMAKE_BUILD_TYPE=Release ..
  make
cd ..

mkdir -p $PKG/usr/lib$LIBDIRSUFFIX $PKG/usr/include/$PRGNAM/internal/custom \
    $PKG/usr/include/gmock/internal/custom

install -m 0644 googlemock/include/gmock/*.h $PKG/usr/include/gmock
install -m 0644 googlemock/include/gmock/internal/*.h $PKG/usr/include/gmock/internal/
install -m 0644 googlemock/include/gmock/internal/custom/*.h \
    $PKG/usr/include/gmock/internal/custom

install -m 0644 googletest/include/$PRGNAM/*.h $PKG/usr/include/$PRGNAM/
install -m 0644 googletest/include/$PRGNAM/internal/*.h $PKG/usr/include/$PRGNAM/internal/
install -m 0644 googletest/include/$PRGNAM/internal/custom/*.h \
    $PKG/usr/include/$PRGNAM/internal/custom

# install the libs and the pkgconfig files!
install -m 0644 build/lib/*.so $PKG/usr/lib$LIBDIRSUFFIX
mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/pkgconfig
for i in gmock gmock_main gtest gtest_main ; do
  sed "s| -lpthread||g" build/googletest/generated/${i}.pc \
    > $PKG/usr/lib$LIBDIRSUFFIX/pkgconfig/${i}.pc
done

mkdir -p $PKG/usr/src
cp -R googlemock $PKG/usr/src
cp -R googletest /$PKG/usr/src
# Create symlinks as some programs look for the shorter names
(cd $PKG/usr/src ; ln -svf googlemock gmock ; ln -svf googletest gtest)

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/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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