#!/bin/bash

# Copyright 2008, 2009, 2010, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024  Patrick J. Volkerding, Sebeka, Minnesota, USA
# 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 2012 by Eric Hameleers <alien at slackware.com> for ARM port.

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

PKGNAM=samba
VERSION=${VERSION:-$(echo samba-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-2}

# This option may be set to "heimdal" or "mit".
# Upstream considers the use of MIT Kerberos for provisioning an AD DC
# to be experimental (for now), and recommends using the bundled Heimdal.
KERBEROS=${KERBEROS:-heimdal}

if [ "$KERBEROS" = "mit" ]; then
  KERB_OPTIONS="--with-system-mitkrb5 --with-experimental-mit-ad-dc"
elif [ "$KERBEROS" = "heimdal" ]; then
  # Please note that this perl module will be required: https://metacpan.org/pod/JSON
  KERB_OPTIONS="--bundled-libraries=heimdal"
fi

if [ -e $CWD/machine.conf ]; then
  . $CWD/machine.conf ]
elif [ -e /etc/slackbuild/machine.conf ]; then
  . /etc/slackbuild/machine.conf ]
else
  # Automatically determine the architecture we're building on:
  if [ -z "$ARCH" ]; then
    case "$( uname -m )" in
      i?86) export ARCH=i586 ;;
      arm*) export ARCH=arm ;;
      # Unless $ARCH is already set, use uname -m for all other archs:
         *) export ARCH=$( uname -m ) ;;
    esac
  fi
  # Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
  if [ "$ARCH" = "i686" ]; then
    SLKCFLAGS="-O2 -march=pentium4 -mtune=generic"
    LIBDIRSUFFIX=""
  elif [ "$ARCH" = "x86_64" ]; then
    SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
    LIBDIRSUFFIX="64"
  elif [ "$ARCH" = "i586" ]; then
    SLKCFLAGS="-O2 -march=i586 -mtune=i686"
    LIBDIRSUFFIX=""
  elif [ "$ARCH" = "arm" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  elif [ "$ARCH" = "mips" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  elif [ "$ARCH" = "mipsel" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  elif [ "$ARCH" = "or1k" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  elif [ "$ARCH" = "ppc" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  elif [ "$ARCH" = "sh4" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
    SLKLDFLAGS="-latomic"
  else
    SLKCFLAGS=${SLKCFLAGS:-"-O2"}
    LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
  fi
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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

case "$ARCH" in
    arm*) TARGET=$ARCH-slackware-linux-gnueabi ;;
    *)    TARGET=$ARCH-slackware-linux ;;
esac

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-samba
rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf samba-$VERSION
tar xvf $CWD/samba-$VERSION.tar.?z || exit 1
cd samba-$VERSION || exit 1

# Add time.h to libsmbclient.h for ffmpeg compatibility:
zcat $CWD/samba.libsmbclient.h.ffmpeg.compat.diff.gz | patch -p1 --verbose || exit 1

if [ ! -d source3/lib/cmdline ]; then
  ( cd source3/lib
    mkdir cmdline
    cd cmdline
    ln -sf ../../../source3/include/popt_common.h . )
fi

# Depending on the include order (that is quite "random"), gssapi.h from
# heimdal could be wrongly included. Remove it:
\rm third_party/heimdal/lib/gssapi/gssapi.h
\rm third_party/heimdal/include/crypto-headers.h

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# Choose correct options depending on whether PAM is installed:
if [ -L /lib${LIBDIRSUFFIX}/libpam.so.? ]; then
  PAM_OPTIONS="--with-pam --with-pammodulesdir=/lib${LIBDIRSUFFIX}/security"
  unset SHADOW_OPTIONS
else
  unset PAM_OPTIONS
  SHADOW_OPTIONS="--without-pam"
fi

# Some of these options could be auto-detected, but declaring them
# here doesn't hurt and helps document what features we're trying to
# build in.
#
# LDFLAGS are needed to avoid problems with missing symbols.
LDFLAGS="-Wl,--no-as-needed $SLKLDFLAGS" \
CFLAGS="$SLKCFLAGS" \
./configure \
  --enable-fhs \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --includedir=/usr/include \
  --bindir=/usr/bin \
  --sbindir=/usr/sbin \
  --mandir=/usr/man \
  --sysconfdir=/etc \
  --with-configdir=/etc/samba \
  --with-piddir=/var/run \
  --with-privatedir=/var/lib/samba/private \
  --with-privatelibdir=/usr/lib${LIBDIRSUFFIX} \
  --with-modulesdir=/usr/lib${LIBDIRSUFFIX} \
  --with-lockdir=/var/cache/samba \
  --with-logfilebase=/var/log/samba \
  --localstatedir=/var \
  --enable-cups \
  --with-acl-support \
  --with-automount \
  --with-quotas \
  --with-syslog \
  --with-utmp \
  --with-winbind \
  --with-ldap \
  --with-ads \
  --without-fam \
  --private-libraries='!ldb' \
  $KERB_OPTIONS \
  $PAM_OPTIONS \
  $SHADOW_OPTIONS \
  --build=$TARGET || exit 1
  # Gives errors:
  #--builtin-libraries=replace,ccan \

# Build with waf directly so that multiple jobs work.
# Script lifted from "./configure".
PREVPATH=$(dirname $0)
WAF=./buildtools/bin/waf
# using JOBS=1 gives maximum compatibility with
# systems like AIX which have broken threading in python
JOBS=$(echo $NUMJOBS | tr -dc '0-9')
export JOBS
# Make sure we don't have any library preloaded.
unset LD_PRELOAD
# Make sure we get stable hashes
PYTHONHASHSEED=1
export PYTHONHASHSEED
cd . || exit 1
${PYTHON:=python3} $WAF build "$@" || exit 1
cd $PREVPATH

mkdir -p \
         $PKG/usr/doc/samba-$VERSION \
         $PKG/var/spool/samba \
         $PKG/var/log/samba \
         $PKG/var/lib/samba/private \
         $PKG/var/cache/samba
chmod 700 $PKG/var/lib/samba/private
chmod 1777 $PKG/var/spool/samba

# Again, use waf directly to allow multithreading:
#make install DESTDIR=$PKG || exit 1
DESTDIR=$PKG
export DESTDIR
${PYTHON:=python3} $WAF install "$@" || exit 1

# Install the smbprint script:
install -m0744 packaging/printing/smbprint $PKG/usr/bin/smbprint

# Add a sample config file:
cat $CWD/smb.conf.default > $PKG/etc/samba/smb.conf-sample

# Setup a default lmhosts file:
echo "127.0.0.1	localhost" > $PKG/etc/samba/lmhosts.new

if [ ! -r $PKG/usr/bin/smbget ]; then
  rm -f $PKG/usr/share/man/man1/smbget.1
fi

# We'll add rc.samba to the init directory, but chmod 644 so that it doesn't
# start by default:
mkdir -p $PKG/etc/rc.d
cat $CWD/rc.samba > $PKG/etc/rc.d/rc.samba.new
chmod 644 $PKG/etc/rc.d/rc.samba.new

mv $PKG/usr/share/man $PKG/usr
gzip -9 $PKG/usr/man/man?/*.?

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

# PAM related stuff we don't use:
rm -r $PKG/usr/share/locale
rm -f $PKG/usr/man/man8/pam*

cp -a \
  COPYING* MAINTAINERS Manifest PFIF.txt README* \
  Read-Manifest-Now Roadmap WHATSNEW.txt docs examples \
  $PKG/usr/doc/samba-$VERSION
# These are installed elsewhere:
rm -rf $PKG/usr/doc/samba-$VERSION/docs/htmldocs \
       $PKG/usr/doc/samba-$VERSION/docs/manpages
# Empty now?
rmdir $PKG/usr/doc/samba-$VERSION/docs 2> /dev/null
# I'm sorry, but when all this info is included in HTML, adding 7MB worth of
# PDF files just to have extra artwork is more fluff than I'll agree to.
rm -f $PKG/usr/doc/samba-$VERSION/docs/*.pdf
# Also redundant also:
rm -rf $PKG/usr/doc/samba-$VERSION/docs/docbook

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh

cat << EOF

*** Be sure the package contains:

drwxr-xr-x   2 root     root         4096 May  3 15:46 /var/cache/samba/
drwx------   2 root     root         1024 Mar 12 13:21 /var/lib/samba/private
drwxr-xr-x   2 root     root           48 Aug 29 13:06 /var/log/samba/
drwxrwxrwt   2 root     root         1024 Mar 12 13:21 /var/spool/samba/

EOF

cd $PKG
/sbin/makepkg -l y -c n $TMP/samba-$VERSION-$ARCH-$BUILD.txz