#!/bin/bash

# Slackware build script for libresprite

# Copyright 2024 Simone Giustetti - Recco IT
# 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=libresprite
VERSION=${VERSION:-1.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
SRC="SOURCE.CODE.+.submodules"

if [ -z "${ARCH}" ]; then
   case "$( uname -m )" in
      i?86) ARCH=i586 ;;
      arm*) ARCH=arm ;;
      # Unless ${ARCH is already set, use uname -m for all other archs:
         *) ARCH=$( 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 [ "${ARCH}" = "i586" ]; then
   SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
elif [ "${ARCH}" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
   LIBDIRSUFFIX=""
elif [ "${ARCH}" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
   LIBDIRSUFFIX="64"
elif [ "${ARCH}" = "aarch64" ]; then
   SLKCFLAGS="-O2 -fPIC"
   LIBDIRSUFFIX="64"
else
   SLKCFLAGS="-O2"
   LIBDIRSUFFIX=""
fi

# Exit the script on errors. Must go here for architecture detection to work.
set -e
# Catch uninitialized variables:
set -u

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

mkdir ${PRGNAM}-${VERSION}
cd ${PRGNAM}-${VERSION}

tar xvf ${CWD}/${SRC}.tar.gz
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 {} \;

# Clean cmake cache
find . -name CMakeCache.txt -exec rm {} \;

mkdir -p build
cd build
cmake \
   -DCMAKE_C_FLAGS:STRING="${SLKCFLAGS}" \
   -DCMAKE_CXX_FLAGS:STRING="${SLKCFLAGS}" \
   -DCMAKE_INSTALL_PREFIX=/usr \
   -DLIB_SUFFIX=${LIBDIRSUFFIX} \
   -G Ninja ..

ninja libresprite

DESTDIR=${PKG} ninja install
cd ..

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

# Strip binaries and libraries
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

# Copy program documentation into the package (No man pages & no info ones present)
mkdir -p ${PKG}/usr/doc/${PRGNAM}-${VERSION}
cp -a \
   ${TMP}/${PRGNAM}-${VERSION}/docs/* \
   ${PKG}/usr/doc/${PRGNAM}-${VERSION}
cat ${CWD}/${PRGNAM}.SlackBuild > ${PKG}/usr/doc/${PRGNAM}-${VERSION}/${PRGNAM}.SlackBuild

# Copy the slack-desc into ./install
mkdir -p ${PKG}/install
cat ${CWD}/slack-desc > ${PKG}/install/slack-desc
cat ${CWD}/doinst.sh  > ${PKG}/install/doinst.sh

# Copy some icons for the program
mkdir -p ${PKG}/usr/share/applications/
cp ${TMP}/${PRGNAM}-${VERSION}/desktop/libresprite.desktop ${PKG}/usr/share/applications/
cp -r ${TMP}/${PRGNAM}-${VERSION}/desktop/icons ${PKG}/usr/share/
mkdir -p ${PKG}/usr/share/pixmaps
cp ${TMP}/${PRGNAM}-${VERSION}/desktop/icons/hicolor/48x48/apps/libresprite.png ${PKG}/usr/share/pixmaps/

# Make the package
cd ${PKG}
/sbin/makepkg -l y -c n ${OUTPUT}/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE}