#!/bin/bash

# Slackware build script for zfs-utils 

# Copyright 2026 Frank Honolka <info@snukware.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=zfs-utils			
SRCNAM=zfs			
VERSION=${VERSION:-$(echo $SRCNAM-*.tar.?z | rev | cut -d "." -f 3- | cut -d "-" -f 1 | rev)}
BUILD=${BUILD:-1}
TAG=${TAG:-_snuk}		
PKGTYPE=${PKGTYPE:-txz}

# Automatically determine the architecture we're building on:
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 [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/var/cache/snukware/tmp}	
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/var/cache/snukware/ap}	

if [ "$ARCH" = "i586" -o "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=$ARCH -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" -o "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e 

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tar.gz --no-same-owner
cd $SRCNAM-$VERSION
ln -sf /bin/true python3-fake
autoreconf -fi
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

SLKCFLAGS="$SLKCFLAGS -fno-tree-vectorize"

# ZFS systemd and dracut integration belongs under /usr/lib on Snukware.
# 64-bit libraries are installed under /usr/lib64.

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib \
  --sbindir=/usr/bin \
  --with-mounthelperdir=/usr/bin \
  --with-udevdir=/usr/lib/udev \
  --libexecdir=/usr/libexec \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --without-libunwind \
  --with-python="$PWD/python3-fake" \
  --enable-pyzfs=no \
  --enable-systemd \
  --with-config=user \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --disable-static \
  --build=$ARCH-slackware-linux

make V=1
make install-strip DESTDIR=$PKG

install -D -m644 contrib/bash_completion.d/zfs "${PKG}"/usr/share/bash-completion/completions/zfs || exit 1


# Fix for permissions being overwritten on /dev/zfs. Related issues:
# https://github.com/openzfs/zfs/issues/15146
# https://github.com/systemd/systemd/issues/28653
install -D -m644 "${CWD}"/zfs-node-permission.conf "${PKG}"/usr/lib/tmpfiles.d/zfs-node-permission.conf || exit 1


# Remove uneeded files
rm -rf "${PKG}"/etc/init.d
rm -rf "${PKG}"/usr/lib/modules-load.d
rm -rf "${PKG}"/usr/share/initramfs-tools
rm -rf "${PKG}"/usr/share/zfs/*.sh
rm -rf "${PKG}"/usr/share/zfs/{runfiles,test-runner,zfs-tests}

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

find $PKG -name perllocal.pod \
  -o -name ".packlist" \
  -o -name "*.bs" \
  | xargs rm -f

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
DOCS="ABOUT-NLS AUTHORS CODE_OF_CONDUCT.md COPYRIGHT LICENSE META NEWS NOTICE README.md RELEASES.md"
cp -a $DOCS $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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