#!/bin/sh

# Slackware build script for ZNC

# Copyright 2007-2013   Sean Donner (sean.donner@gmail.com)
# Copyright 2017, 2018  Mario Preksavec, Zagreb, Croatia
# Copyright 2023        Sergei Fedosoff <eleksir@gmail.com>
#
# 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=znc
VERSION=${VERSION:-1.9.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_EXs}

ZNC_USER=${ZNC_USER:-znc}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

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

if [ "$ARCH" = "i486" ]; then
   SLKCFLAGS="-O2 -march=i486 -mtune=i686"
   LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
   LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
   LIBDIRSUFFIX="64"
fi

# Bail if user and/or group isn't valid on your system
# uid=219 is suggested to avoid conflicts with other SBo packages,
# but it's your call: http://slackbuilds.org/uid_gid.txt
if ! grep -q "^$ZNC_USER:" /etc/passwd; then
  echo "  You must have a $ZNC_USER user to run this script. "
  echo "  Something like this should suffice for most systems: "
  echo "      # useradd -u 219 -g 99 -c \"ZNC User\" -d /etc/znc $ZNC_USER"
  exit 1
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xf $CWD/$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 {} \+

mkdir build
cd build
cmake -GNinja \
    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
    -DCMAKE_C_FLAGS:STRING="-g $SLKCFLAGS -rdynamic" \
    -DCMAKE_CXX_FLAGS:STRING="-g $SLKCFLAGS -rdynamic" \
    -DCMAKE_EXE_LINKER_FLAGS:STRING="-flto -rdynamic -Wl,--export-dynamic -Wl,-E -Wl,--no-as-needed -Wl,-O2" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DMANDIR=/usr/man \
    -DLIBDIR=/usr/lib${LIBDIRSUFFIX} \
    -DWANT_CYRUS=ON \
    -DWANT_I18N=ON \
    -DWANT_ICU=ON \
    -DWANT_IPV6=ON \
    -DWANT_OPENSSL=ON \
    -DWANT_PERL=ON \
    -DWANT_PYTHON=ON \
    -DWANT_SWIG=ON \
    -DWANT_TCL=ON \
    -DWANT_ZLIB=ON \
    ..

ninja -j$(nproc)
DESTDIR=$PKG ninja install
cd ..

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

# Change the ownership of the configuration directory
install -dpm 0750 -o $ZNC_USER $PKG/etc/znc

# Install an init script
mkdir -p $PKG/etc/rc.d
sed -e "s/@ZNC_USER@/$ZNC_USER/g" -e "s/@VERSION@/$VERSION/g" $CWD/rc.znc \
  > $PKG/etc/rc.d/rc.znc.new

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  LICENSE* README* \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
sed "s/@ZNC_USER@/$ZNC_USER/g" $CWD/README.SLACKWARE > \
  $PKG/usr/doc/$PRGNAM-$VERSION/README.SLACKWARE

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:-tgz}