#!/bin/bash


# Copyright 2024 Sergei Fedosoff <s.fedosov@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.


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

PRGNAM=libvirt
VERSION=${VERSION:-9.10.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_EXs}
PKGTYPE=${PKGTYPE:-tgz}

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

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

VIRTUSER=${VIRTUSER:-root}
VIRTGROUP=${VIRTGROUP:-users}

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xf $CWD/$PRGNAM-$VERSION.tar.xz
cd $PRGNAM-$VERSION
chown -R root:root .

sed -i "s|prefix / 'lib' / 'sysctl.d'|sysconfdir / 'sysctl.d'|" src/remote/meson.build

patch -p1 -i $CWD/use-virtgroup-in-polkit-rules.diff
sed -i -e "s,@VIRTGROUP@,$VIRTGROUP,g" src/remote/libvirtd.rules

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
meson setup build \
  --buildtype=release \
  --infodir=/usr/info \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --localstatedir=/var \
  --mandir=/usr/man \
  --prefix=/usr \
  --sysconfdir=/etc \
  -Dqemu_group=$VIRTGROUP \
  -Dqemu_user=$VIRTUSER \
  -Dbash_completion=enabled \
  -Dbash_completion_dir=/usr/share/bash-completion/completions \
  -Daudit=disabled \
  -Dlibiscsi=disabled \
  -Dopenwsman=disabled \
  -Dapparmor=disabled \
  -Dselinux=disabled \
  -Dwireshark_dissector=disabled \
  -Ddriver_bhyve=disabled \
  -Ddriver_hyperv=disabled \
  -Ddriver_libxl=disabled \
  -Ddriver_vz=disabled \
  -Dsecdriver_apparmor=disabled \
  -Dsecdriver_selinux=disabled \
  -Dstorage_vstorage=disabled \
  -Ddtrace=disabled \
  -Dstrip=true \
  -Dinit_script=none
meson install -C build --destdir $PKG

rm -rf $PKG/usr/share/augeas
rm -Rf $PKG/var/run

# add an rc.libvirt to start/stop/restart the daemon
install -Dpm 0755 $CWD/rc.libvirt $PKG/etc/rc.d/rc.libvirt.new

sed -i \
  -e "s|^\#unix_sock_group\ =\ \"libvirt\"|unix_sock_group = \"$VIRTGROUP\"|" \
  -e "s|^\#unix_sock_rw_perms\ =\ \"0770\"|unix_sock_rw_perms = \"0770\"|" \
  -e "s|^\#auth_unix_ro.*|auth_unix_ro = \"none\"|" \
  -e "s|^\#auth_unix_rw.*|auth_unix_rw = \"none\"|" \
  -e "s|^\#listen_tls|listen_tls|" \
  $PKG/etc/libvirt/libvirtd.conf

sed -i -e "s|^\#group\ =\ \"root\"|group = \"$VIRTGROUP\"|" $PKG/etc/libvirt/qemu.conf

if [ -e $PKG/etc/libvirt/qemu.conf ]; then
  sed -i  "s|^\#seccomp_sandbox = 1|seccomp_sandbox = 0|" \
    $PKG/etc/libvirt/qemu.conf
fi

gzip -9 $PKG/usr/man/man*/*

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$PRGNAM/* $PKG/usr/doc/$PRGNAM-$VERSION/
rm -Rf $PKG/usr/share/doc
cp -a \
  *.rst COPYING* examples/polkit/* \
  $PKG/usr/doc/$PRGNAM-$VERSION

install -Dpm 0644 $CWD/$PRGNAM.SlackBuild $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

install -Dpm 0644 $CWD/slack-desc     $PKG/install/slack-desc
install -Dpm 0644 $CWD/slack-required $PKG/install/slack-required
install -Dpm 0644 $CWD/doinst.sh      $PKG/install/doinst.sh

# Don't clobber existing configuration files
for i in etc/libvirt etc/libvirt/nwfilter etc/libvirt/qemu/networks etc/logrotate.d etc/sasl2 etc/sysctl.d; do
  for j in $(ls -1 $PKG/$i); do
    if [ ! -d $PKG/$i/$j ]; then
      mv $PKG/$i/$j $PKG/$i/$j.new
      echo "config $i/$j.new" >> $PKG/install/doinst.sh
    fi
  done
done

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