#!/bin/bash

# Slackware build script for uavs3d

# Copyright 2022-24 Vijay Marcel
# 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=uavs3d
VERSION=${VERSION:-1fd0491_20230223}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
sys_arch=${sys_arch:-$(uname -m)}
COMMIT=${COMMIT:-1fd04917cff50fac72ae23e45f82ca6fd9130bd8}
COMMITDATE=${COMMITDATE:-20230223}

case "$sys_arch" in
	  i586) export ARCH=i586 ;;
          i686) export ARCH=i686 ;;
	x86_64) export ARCH=x86_64 ;;
	     *) echo "This SlackBuild will not build on $sys_arch platform" && exit 1 ;;
esac

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-march=i586 -mtune=i686 -O2 -pipe -fPIC"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-march=i686 -mtune=i686 -O2 -pipe -fPIC"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fPIC"
  LIBDIRSUFFIX="64"
else
  echo "This SlackBuild will not build on $sys_arch platform" && exit 1
fi

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

set -e
trap 'echo "$0 FAILED at line $LINENO!" | tee -a $OUTPUT/error-${PRGNAM}.log' ERR

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$COMMIT
tar xvf $CWD/$PRGNAM-$COMMIT.tar.gz
cd $PRGNAM-$COMMIT

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 source
patch  --verbose --unified  < $CWD/fix-libdir.patch
cd ..

mkdir -pv build/linux

cmake -B build/linux -S $TMP/$PRGNAM-$COMMIT \
        -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
        -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
        -DCMAKE_BUILD_TYPE:STRING=Release \
        -DCMAKE_INSTALL_PREFIX:PATH=/usr \
        -DCMAKE_INSTALL_LIB_DIR:PATH=/usr/lib${LIBDIRSUFFIX} \
        -DBUILD_SHARED_LIBS:BOOL=ON \
        -DCOMPILE_10BIT=1

cmake --build  build/linux

make -C $TMP/$PRGNAM-$COMMIT/build/linux DESTDIR="$PKG" install

install -D -m755 $TMP/$PRGNAM-$COMMIT/build/linux/uavs3dec -t "$PKG/usr/bin"

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

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

mkdir -pv  $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYING README.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

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