#!/bin/bash

# Copyright 2005-2018  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=coreutils
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | cut -d - -f 2 | rev | cut -f 3- -d . | rev)}
BUILD=${BUILD:-3}

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4 -mtune=xscale"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "armel" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Don't use icecream:
PATH=$(echo $PATH | sed "s|/usr/libexec/icecc/bin||g" | tr -s : | sed "s/^://g" | sed "s/:$//g")

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP

rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.xz || exit 1
cd $PKGNAM-$VERSION || exit 1

# Fix chmod exit status:
touch -r NEWS NEWS.timestamp
touch -r src/chmod.c src/chmod.c.timestamp
touch -r tests/local.mk tests/local.mk.timestamp
zcat $CWD/e8b56ebd536e82b15542a00c888109471936bfda.patch.gz | patch -p1 --verbose || exit 1
touch -r NEWS.timestamp NEWS
touch -r src/chmod.c.timestamp src/chmod.c
touch -r tests/local.mk.timestamp tests/local.mk
rm -f NEWS.timestamp src/chmod.c.timestamp tests/local.mk.timestamp

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 {} \+

# Patch uname to correctly display CPU information:
zcat $CWD/$PKGNAM.uname.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1

# Revert change to ls quoting style introduced in coreutils-8.25:
zcat $CWD/no_ls_quoting.patch.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1

# Compilation with glibc version later than 2.3.2 needs the environment
# variable DEFAULT_POSIX2_VERSION set to 199209.
# Without that line, the coreutils will start complaining about 'obsolete'
# command switches, like "tail -20" will be considered obsolete.
# This behaviour breaks many other packages... the 'obsolete' parameters are
# too commonly used to disregard them.  Better to stick with the older more
# widely accepted standards until things begin to demand the new way.

FORCE_UNSAFE_CONFIGURE=1 \
CFLAGS="$SLKCFLAGS" \
DEFAULT_POSIX2_VERSION=199209 \
./configure \
  --prefix=/usr \
  --bindir=/bin \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --sysconfdir=/etc \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --enable-install-program=arch \
  --build=$ARCH-slackware-linux || exit 1

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

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

# This seems wrong, and it stomps on files in the ksh93 package, though I'm
# not sure the placement of those is correct, either...  The ksh93 package
# installs them as flat text files, while coreutils installs empty directories
# Oh well, this is what we've done for years, and nobody's complained...
rm -rf $PKG/usr/share/locale/*/LC_TIME

# Move "arch" to /bin
mv $PKG/usr/bin/arch $PKG/bin

# These are important enough that they should probably all go into /bin at this
# point...   Having some of them unavailable when /usr isn't mounted is just a
# source of unending bug reports for various third party applications.
# Time to end those reports.  :-)
mkdir -p $PKG/bin $PKG/usr/bin
( cd $PKG/usr/bin
  for file in ../../bin/* ; do
    ln --verbose -sf $file .
  done
)

# Add some defaults, although a very slack-like set of default options are built
# into /bin/ls now anyway:
mkdir -p $PKG/etc
zcat $CWD/DIR_COLORS.gz > $PKG/etc/DIR_COLORS.new

# Since dircolors no longer provides any default aliases these scripts
# will be needed for ls to act as expected:
mkdir -p $PKG/etc/profile.d
zcat $CWD/coreutils-dircolors.csh.gz > $PKG/etc/profile.d/coreutils-dircolors.csh
zcat $CWD/coreutils-dircolors.sh.gz > $PKG/etc/profile.d/coreutils-dircolors.sh
chmod 755 $PKG/etc/profile.d/*

# Remove things that are provided by other Slackware packages:
for dupe in hostname kill su uptime ; do
  rm -f $PKG/bin/${dupe} $PKG/usr/bin/${dupe} \
    $PKG/usr/sbin/${dupe} $PKG/usr/man/man?/${dupe}.* ;
done

# Add ginstall links (there's still a lot of stuff that needs this to compile):
( cd $PKG/bin ; ln -sf install ginstall )
( cd $PKG/usr/bin ; ln -sf ../../bin/ginstall ginstall )
( cd $PKG/usr/man/man1 ; ln -sf install.1 ginstall.1 )

# Compress and link manpages, if any:
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

rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*

mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a \
  AUTHORS COPYING* NEWS README* THANKS THANKS-to-translators TODO \
  $PKG/usr/doc/$PKGNAM-$VERSION

# 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 $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

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

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