#!/bin/bash

# Slackware build script for pioneer

# Copyright 2015-2019 Hunter Sezen California, USA
# Copyright 2023-2024 K. Eugene Carlson Tsukuba, JP
# 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.

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

PRGNAM=pioneer
VERSION=${VERSION:-20240314}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

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

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -eu

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

if [ "${DEBUG:=0}" != 0 ]; then
  RELEASE=Debug
  SLKCFLAGS="$(printf %s "$SLKCFLAGS" | sed 's/-O2/-O0/')"
else
  RELEASE=Release
fi

# Fix save compatibility (#5798).
patch -p0 < $CWD/save-compat.diff

GLEW=OFF
LUA=OFF

pkg-config --exists glew && GLEW=ON
pkg-config --exists lua5.2 && LUA=ON

# 20210214 bkw: prevent the build from writing to /root/, without
# breaking ccache if it's in use.
mkdir -p tmphome/.local/share/pioneer
export CCACHE_DIR=${CCACHE_DIR:-$HOME/.ccache}
export HOME=$( pwd )/tmphome

OSNAME="$(awk -F= '/^ID=/{print $2}' /etc/os-release)"
OSVER="$(awk -F= '/^VERSION_ID=/{print $2}' /etc/os-release)"
OSCODENAME="$(awk -F= '/^VERSION_CODENAME=/{print $2}' /etc/os-release)"
# This version information string can be included when reporting issues
# upstream.
INFOSTRING="$OSNAME-$OSVER-$OSCODENAME-$PRGNAM-$VERSION-$ARCH-$BUILD$TAG"

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_BINDIR=games \
    -DCMAKE_INSTALL_DATADIR=share/games \
    -DUSE_SYSTEM_LIBGLEW=$GLEW \
    -DUSE_SYSTEM_LIBLUA=$LUA \
    -DFMT_INSTALL=OFF \
    -DPROJECT_VERSION_INFO="$INFOSTRING" \
    -DCMAKE_BUILD_TYPE=$RELEASE ..
  make
  make install DESTDIR=$PKG
  make -C . build-data install DESTDIR=$PKG
cd ..

if [ "$DEBUG" = 0 ]; then
  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
fi

# Clean up the data directory, put icons and files where they are
# supposed to be and install an SVG icon.
rm -rf $PKG/usr/share/games/$PRGNAM/{licenses,*txt,*md}
mv $PKG/usr/share/games/{icons,applications,metainfo} $PKG/usr/share
sed -i 's|Exec=|Exec=/usr/|g' $PKG/usr/share/applications/net.pioneerspacesim.Pioneer.desktop
mkdir -p $PKG/usr/share/icons/hicolor/scalable/apps
install -m 0644 application-icon/badge-full.svg \
  $PKG/usr/share/icons/hicolor/scalable/apps/net.pioneerspacesim.Pioneer.svg

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a licenses *.txt README.md NEWS.md $PKG/usr/doc/$PRGNAM-$VERSION
rm -f $PKG/usr/doc/$PRGNAM-$VERSION/{CMakeLists,SAVEBUMP}.txt
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

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