#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2012, 2013, 2015, 2017, 2018, 2020, 2021  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.

# Slackware build script for util-linux

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

PKGNAM=util-linux
VERSION=${VERSION:-$(echo util-linux*.tar.xz | cut -d - -f 3  | rev | cut -f 3- -d . | rev)}
BUILD=${BUILD:-1}

ADJTIMEXVERS=1.29
SETSERIALVERS=2.17
ZIPTOOLVERS=1.4.0

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-util-linux

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP || exit 1
rm -rf util-linux-$VERSION
tar xvf $CWD/util-linux-$VERSION.tar.xz || exit 1
cd util-linux-$VERSION || 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 {} \+

# Choose correct options depending on whether PAM is installed:
if [ -L /lib${LIBDIRSUFFIX}/libpam.so.? ]; then
  LOGIN_OPTIONS=""
  # By default, don't use the util-linux version of /bin/su:
  SHIP_SU=${SHIP_SU:-NO}
  # Add /etc/pam.d config files:
  rm -rf $PKG/etc/pam.d
  mkdir -p $PKG/etc/pam.d
  for file in $CWD/pam.d/* ; do
    cp -a ${file} $PKG/etc/pam.d/
  done
  if [ "$SHIP_SU" = "YES" ]; then
    # Add su default file to ensure using ENV_SUPATH with 'su':
    mkdir -p $PKG/etc/default
    cp -a $CWD/su.default $PKG/etc/default/su.new
    chown root:root $PKG/etc/default/su.new
    chmod 644 $PKG/etc/default/su.new
    # Add su /etc/pam.d files:
    cp -a $CWD/pam.d-su/* $PKG/etc/pam.d/
  fi
  # Ensure correct perms/ownership on files in /etc/pam.d/:
  chown root:root $PKG/etc/pam.d/*
  chmod 644 $PKG/etc/pam.d/*
  # Don't clobber existing config files:
  find $PKG/etc/pam.d -type f -exec mv {} {}.new \;
else
  # Don't use the util-linux version of /bin/su.
  # It can't be built without PAM anyway.
  SHIP_SU=NO
  LOGIN_OPTIONS="--disable-login"
fi

# Changing the fdisk -l output (this was done prior to util-linux-ng) broke
# our installation scripts, so we have changed the name of partition type
# 83 back to "Linux swap":
zcat $CWD/util-linux.fdisk-no-solaris.diff.gz | patch -p1 --verbose || exit 1

# Revert to the behavior of earlier versions of fdisk which did not list the
# /dev/ram* devices in 'fdisk -l' output:
zcat $CWD/util-linux.do.not.list.ram.devices.diff.gz | patch -p1 --verbose || exit 1

# This just call the configure script with $1 either being 2 for python2
# or 3 for python3.
#
# The releasenotes say to use --runstatedir, but it doesn't work and the
# configure script fails. So we'll leave things using localstatedir, but
# check again later:
#
#   --runstatedir=/run
configure_with_python(){
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/util-linux-$VERSION \
  --disable-static \
  --enable-agetty \
  --enable-fdformat \
  --enable-kill \
  --disable-last \
  --enable-libmount-support-mtab \
  --enable-line \
  --enable-mesg \
  --enable-partx \
  --enable-pg \
  --disable-raw \
  --enable-rename \
  $LOGIN_OPTIONS \
  --enable-schedutils \
  --enable-wall \
  --enable-write \
  --enable-use-tty-group \
  --enable-libblkid \
  --enable-libmount \
  --enable-libuuid \
  --disable-uuidd \
  --with-python=$1 \
  --build=$ARCH-slackware-linux
}

CFLAGS="$SLKCFLAGS" \
  configure_with_python 2 || exit 1

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

# These need to be setuid root to work properly (only built for PAM):
if [ -r $PKG/usr/bin/chfn ]; then
  chmod 4711 $PKG/usr/bin/chfn
fi
if [ -r $PKG/usr/bin/chsh ]; then
  chmod 4711 $PKG/usr/bin/chsh
fi

# Build python3 bindings for libmount:
make clean
CFLAGS="$SLKCFLAGS" \
  configure_with_python 3 || exit 1
make $NUMJOBS \
  install-pylibmountexecLTLIBRARIES \
  install-pylibmountexecPYTHON \
  DESTDIR=$PKG || exit 1

# Remove all overlap with the shadow package, since --disable-login doesn't quite do that:
rm $PKG/sbin/nologin $PKG/usr/man/man8/nologin.8 $PKG/sbin/sulogin $PKG/usr/man/man8/sulogin.8

# If we aren't shipping su, remove the files:
if [ "$SHIP_SU" = "NO" ]; then
  rm -f $PKG/bin/su
  rm -f $PKG/usr/man/man1/su.1
  rm -f $PKG/usr/share/bash-completion/completions/runuser
  rm -f $PKG/usr/share/bash-completion/completions/su
fi

# Move the libblkid, libfdisk, libmount, libsmartcols, and
# libuuid libraries to /lib${LIBSUFFIX}:
mkdir -p $PKG/lib${LIBDIRSUFFIX}
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  mv libblkid.so.1* $PKG/lib${LIBDIRSUFFIX}
  mv libfdisk.so.1* $PKG/lib${LIBDIRSUFFIX}
  mv libmount.so.1* $PKG/lib${LIBDIRSUFFIX}
  mv libsmartcols.so.1* $PKG/lib${LIBDIRSUFFIX}
  mv libuuid.so.1* $PKG/lib${LIBDIRSUFFIX}
  rm -f libblkid.so libfdisk.so libmount.so libsmartcols.so libuuid.so
  ln -sf ../../lib${LIBDIRSUFFIX}/libblkid.so.1 libblkid.so
  ln -sf ../../lib${LIBDIRSUFFIX}/libfdisk.so.1 libfdisk.so
  ln -sf ../../lib${LIBDIRSUFFIX}/libmount.so.1 libmount.so
  ln -sf ../../lib${LIBDIRSUFFIX}/libsmartcols.so.1 libsmartcols.so
  ln -sf ../../lib${LIBDIRSUFFIX}/libuuid.so.1 libuuid.so
)

# Moving things around that have been in the same place
# for 15 years is, IMHO, not a wise idea AT ALL.
# If this had to be moved, some place out of /usr might
# have shown a grain of insight...
if [ -r $PKG/usr/sbin/fdformat ]; then
  mkdir -p $PKG/usr/bin
  mv $PKG/usr/sbin/fdformat $PKG/usr/bin/fdformat
  # Now since stuff will start looking in this new place,
  # we have no choice but to link these:
  ( cd $PKG/usr/sbin
    ln -sf ../bin/fdformat .
  )
fi

# Add the rc.setterm init script to set default terminal attributes:
mkdir -p $PKG/etc/rc.d
cp -a $CWD/rc.setterm $PKG/etc/rc.d/rc.setterm.new
chown root:root $PKG/etc/rc.d/rc.setterm.new
chmod 755 $PKG/etc/rc.d/rc.setterm.new

# ddate.{1,c} taken from https://github.com/bo0ts/ddate:
cp -a $CWD/ddate.? .
cc -O -o ddate ddate.c
cp -a ddate $PKG/usr/bin
cat ddate.1 > $PKG/usr/man/man1/ddate.1
chown root:root $PKG/usr/bin/ddate

# Build ziptool (install as jaztool to avoid conflict with libzip):
cd $TMP || exit 1
rm -rf ziptool-$ZIPTOOLVERS
tar xvf $CWD/ziptool-$ZIPTOOLVERS.tar.xz || exit 1
cd ziptool-$ZIPTOOLVERS || exit 1
zcat $CWD/ziptool-fix_build.patch.gz | patch -p1 || exit 1
mkdir scsi
cat $CWD/scsi_ioctl.h > scsi/scsi_ioctl.h
chown -R root:root .
make || exit 1
strip ziptool
cat ziptool > $PKG/sbin/jaztool
chmod 0755 $PKG/sbin/jaztool
mkdir -p $PKG/usr/doc/ziptool-$ZIPTOOLVERS
cp -a README $PKG/usr/doc/ziptool-$ZIPTOOLVERS
chmod 644 $PKG/usr/doc/ziptool-$ZIPTOOLVERS/*
cat ziptool.1.gz > $PKG/usr/man/man1/jaztool.1.gz

# Build bsdstrings
cd $TMP || exit 1
rm -rf bsdstrings
tar xvf $CWD/bsdstrings.tar.gz || exit 1
cd bsdstrings || exit 1
zcat $CWD/bsdstrings-util-linux_overflow.diff.gz | patch -p1 --verbose || exit 1
make || exit 1
strip strings
cat strings > $PKG/usr/bin/strings-BSD
chmod 0755 $PKG/usr/bin/strings-BSD
cat strings.1 | gzip -9c > $PKG/usr/man/man1/strings-BSD.1.gz

# Build adjtimex
cd $TMP || exit 1
rm -rf adjtimex-$ADJTIMEXVERS
tar xvf $CWD/adjtimex_${ADJTIMEXVERS}.orig.tar.gz || exit 1
cd adjtimex-$ADJTIMEXVERS || exit 1
chown -R root:root .
zcat $CWD/adjtimex_1.29-2.2.diff.gz | patch -p1 || exit 1
CFLAGS=-O2 ./configure --prefix=/usr || exit 1
make || exit 1
strip adjtimex
cat adjtimex > $PKG/sbin/adjtimex
chmod 0755 $PKG/sbin/adjtimex
cat adjtimex.8 | gzip -9c > $PKG/usr/man/man8/adjtimex.8.gz
mkdir -p $PKG/usr/doc/adjtimex-$ADJTIMEXVERS
cp -a COPYING COPYRIGHT README README.ru adjtimex.lsm \
  $PKG/usr/doc/adjtimex-$ADJTIMEXVERS

# Build setserial
cd $TMP || exit 1
rm -rf setserial-$SETSERIALVERS
tar xvf $CWD/setserial-$SETSERIALVERS.tar.gz || exit 1
cd setserial-$SETSERIALVERS || exit 1
chown -R root:root .
zcat $CWD/setserial-rc.serial.diff.gz | patch -E -p1 --verbose || exit 1
zcat $CWD/setserial-undef_TIOCGHAYESESP.diff.gz | patch -E -p1 --verbose || exit 1
# The original config.{guess,sub} do not work on x86_64
cp -p /usr/share/libtool/config/config.{guess,sub} .
./configure --prefix=/usr || exit 1
make || exit 1
strip setserial
cat setserial > $PKG/sbin/setserial
chmod 0755 $PKG/sbin/setserial
mkdir -p $PKG/etc/rc.d
cat rc.serial > $PKG/etc/rc.d/rc.serial.new
cat serial.conf > $PKG/etc/serial.conf.new
cat setserial.8 | gzip -9c > $PKG/usr/man/man8/setserial.8.gz

# These have always traditionally been available before /usr
# might be mounted:
( cd $PKG/usr/bin
  mv getopt setterm $PKG/bin
  cd $PKG/usr/bin
  ln -s ../../bin/getopt .
  ln -s ../../bin/setterm .
)

cd $TMP/util-linux-$VERSION # Go back home :)

# Now let's add some important symlinks :)
( cd $PKG/sbin
  ln -s ../bin/mount .
  ln -s ../bin/umount .
  #ln -s ziptool jaztool
  ln -s hwclock clock
  cd $PKG/usr/sbin
  ln -s ../../sbin/cfdisk .
  ln -s ../../sbin/ctrlaltdel .
  ln -s ../../sbin/sfdisk .
  cd $PKG/usr/bin
  ln -s ../sbin/readprofile .
  # tunelp was removed by upstream:
  #ln -s ../sbin/tunelp .
  ln -s ../../bin/more .
  cd $PKG/usr/man/man1
  #ln -s ziptool.1 jaztool.1
  cd $PKG/usr/man/man8
  ln -s hwclock.8 clock.8
)

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

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

# 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

# Compress info page and remove dir file
rm $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*

mkdir -p $PKG/usr/doc/util-linux-$VERSION
cp -a AUTHORS COPYING* DEPRECATED NEWS README* \
  Documentation/v${VERSION}-ReleaseNotes \
  Documentation/licenses/* Documentation/{TODO,*.txt} \
  $PKG/usr/doc/util-linux-$VERSION

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

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