#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2013, 2016, 2018, 2020  Patrick J. Volkerding, Sebeka, MN, 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.

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

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

# 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

# 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

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "armv7hl" ]; then
  SLKCFLAGS="-O3 -march=armv7-a -mfpu=vfpv3-d16"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS=${SLKCFLAGS:-"-O2"}
  LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-nfs-utils

rm -rf $PKG
mkdir -p $TMP $PKG/etc/exports.d

# Add defaults file:
mkdir -p $PKG/etc/default
cat $CWD/nfs.default > $PKG/etc/default/nfs.new

# Add startup script:
mkdir -p $PKG/etc/rc.d
cat $CWD/rc.nfsd > $PKG/etc/rc.d/rc.nfsd.new
# Off by default, unless there's a previous version that's turned on:
chmod 644 $PKG/etc/rc.d/rc.nfsd.new

# Add /etc/exports:
cp -a $CWD/exports $PKG/etc/exports.new
chown root:root $PKG/etc/exports.new
chmod 644 $PKG/etc/exports.new

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

zcat $CWD/nfs-utils.lwrap.needs.lnsl.diff.gz | patch -p1 --verbose || exit 1

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 {} \+

# Fix compatibility on 32bit systems that has 64bit default time_t:
zcat $CWD/time64_compatibility_on_32bit_system.diff.gz | patch -p1 --verbose || exit 1

# Configure, build, and install:
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --with-statedir=/var/lib/nfs \
  --with-pluginpath=/usr/lib${LIBDIRSUFFIX}/libnfsidmap \
  --disable-static \
  --enable-mountconfig \
  --enable-nfsv4=yes \
  --enable-gss=yes \
  --enable-svcgss=yes \
  --enable-tirpc=yes \
  --program-prefix= \
  --program-suffix= \
  --build=$ARCH-slackware-linux || exit 1

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Add nfsmount.conf and man page:
cat ./utils/mount/nfsmount.conf > $PKG/etc/nfsmount.conf.new
mkdir -p $PKG/usr/man/man5
cat ./utils/mount/nfsmount.conf.man > $PKG/usr/man/man5/nfsmount.conf.5

# Set default protocol version 3:
sed -i "s/# Defaultvers=4/Defaultvers=3/g" $PKG/etc/nfsmount.conf.new

# These might be in use:
( cd $PKG/var/lib/nfs
  for config_file in etab rmtab state ; do
    mv ${config_file} ${config_file}.new
  done
)

# This should move to support /usr on NFS:
mkdir -p $PKG/sbin
mv $PKG/usr/sbin/rpc.statd $PKG/sbin
( cd $PKG/usr/sbin ; ln -sf ../../sbin/rpc.statd . )

# Make recovery directory. The location expected may be found in
# /proc/fs/nfsd/nfsv4recoverydir, so if that file exists we will get the
# location from there. If not, we'll use the usual directory path.
if [ -r /proc/fs/nfsd/nfsv4recoverydir ]; then
  NFSV4RECOVERYDIR="$(cat /proc/fs/nfsd/nfsv4recoverydir)"
else
  NFSV4RECOVERYDIR="/var/lib/nfs/v4recovery"
fi
mkdir -p ${PKG}${NFSV4RECOVERYDIR}

# Chown /var/lib/nfs so that rpc.statd runs as rpc:rpc:
chown -R rpc:rpc $PKG/var/lib/nfs

# Add database directory for nfsdcltrack:
mkdir -p $PKG/var/lib/nfs/nfsdcltrack
chown root:rpc $PKG/var/lib/nfs/nfsdcltrack
chmod 775 $PKG/var/lib/nfs/nfsdcltrack

# Create log directory:
mkdir -p $PKG/var/log/nfsd

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

mkdir -p $PKG/usr/doc/nfs-utils-$VERSION
cp -a \
  AUTHORS COPYING* INSTALL NEWS README* \
  $PKG/usr/doc/nfs-utils-$VERSION
mkdir -p $PKG/usr/doc/nfs-utils-$VERSION/statd
cp -a \
  utils/statd/COPYING utils/statd/COPYRIGHT utils/statd/TODO \
  $PKG/usr/doc/nfs-utils-$VERSION/statd

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog ]; then
  DOCSDIR=$(echo $PKG/usr/doc/*-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

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

# Build the package:
cd $PKG
/sbin/makepkg -l y -c n $TMP/nfs-utils-$VERSION-$ARCH-$BUILD.txz