#!/bin/bash

# Slackware build script for zfs-on-linux

# Copyright 2021 Markus Reichelt <slackbuilds@mareichelt.de>, Germany
# Copyright 2017 Marcin Szychowski <szycha@gmail.com>, Poland
# Copyright 2016 Kevin Paulus <goarilla@gmail.com>, Belgium
# Copyright 2013-2014 Petr Hejl - Czech Republic
# 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.

# Modified by the SlackBuilds.org project

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

PRGNAM=zfs-on-linux
SRCNAM=zfs
VERSION=${VERSION:-2.1.2}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

KERNEL=${KERNEL:-"$(uname -r)"}
PKGVER="$(printf %s "${VERSION}_${KERNEL}" | tr - _)"

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-$PKGVER-$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" = "riscv64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

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

env -u ARCH \
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --localstatedir=/var \
  --sysconfdir=/etc \
  --libdir=/lib$LIBDIRSUFFIX \
  --bindir=/usr/bin \
  --sbindir=/sbin \
  --includedir=/usr/include \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --with-linux="/lib/modules/${KERNEL}/source" \
  --with-linux-obj="/lib/modules/${KERNEL}/source" \
  --with-udevdir=/lib/udev \
  --enable-static=no \
  --build=$ARCH-slackware-linux

env -u ARCH make $NUMJOBS || env -u ARCH make
env -u ARCH make install DESTDIR=$PKG

# no such thing here
rm -fr $PKG/usr/lib/dracut
# no use to keep header files; the Module.symvers file would need the correct path anyway.
rm -r $PKG/usr/src

mkdir -p $PKG/etc/rc.d/init.d
rm -fr $PKG/etc/init.d
install -m 0755 -D $CWD/rc.zfs $PKG/etc/rc.d/rc.zfs.new
ln -s ../rc.zfs $PKG/etc/rc.d/init.d/zfs

# create the lock directory
mkdir -p $PKG/var/lock/zfs

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS COPYRIGHT LICENSE META README.md NEWS NOTICE CODE_OF_CONDUCT.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
cat $CWD/doinst.sh > $PKG/install/doinst.sh

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