#!/bin/bash

# Copyright 2008, 2009, 2010, 2015, 2016, 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.

# Modified 2012 by Eric Hameleers <alien at slackware.com> for ARM port.

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

PKGNAM=e2fsprogs
VERSION=${VERSION:-$(echo e2fsprogs*.tar.?z | cut -d - -f 2 | rev | cut -f 3- -d . | rev)}
BUILD=${BUILD:-1}

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

# Automatically determine the architecture we're building on:
MARCH=$( uname -m )
if [ -z "$ARCH" ]; then
  case "$MARCH" in
    i?86)    export ARCH=i586 ;;
    armv7hl) export ARCH=$MARCH ;;
    arm*)    export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *)       export ARCH=$MARCH ;;
  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 [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "armv7hl" ]; then
  SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-e2fsprogs

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf e2fsprogs-$VERSION
tar xvf $CWD/e2fsprogs-$VERSION.tar.?z || exit 1
cd e2fsprogs-$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 {} \+

# Do not use 64-bit by default on ext4, since some bootloaders cannot handle
# it yet.  But use "auto_64-bit_support = 1", which will enable 64-bit if the
# number of blocks for the file system requires the feature to be enabled.
zcat $CWD/e2fsprogs.no.64bit.by.default.diff.gz | patch -p1 --verbose || exit 1

# Disable libblkid and libuuid, as we'll be using the ones in u-l-ng
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix= \
  --libdir=/lib${LIBDIRSUFFIX} \
  --bindir=/usr/bin \
  --includedir=/usr/include \
  --datadir=/usr/share \
  --datarootdir=/usr/share \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/e2fsprogs-$VERSION \
  --enable-elf-shlibs \
  --disable-libblkid \
  --disable-libuuid \
  --disable-uuidd \
  --build=$TARGET || exit 1

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

# I guess Ted would rather not have this included, so we won't.
# ( cd misc 
#   make findsuper
#   cat findsuper > $PKG/sbin/findsuper
#   chmod 0755 $PKG/sbin/findsuper )

# Don't clobber an existing config file
mv $PKG/etc/mke2fs.conf $PKG/etc/mke2fs.conf.new

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

# Fix up package:
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}
mv $PKG/lib${LIBDIRSUFFIX}/pkgconfig $PKG/lib${LIBDIRSUFFIX}/*.so \
  $PKG/usr/lib${LIBDIRSUFFIX}
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  for i in *.so ; do 
    ln -sf /lib${LIBDIRSUFFIX}/$(readlink $i) $i ; 
  done
)

# Since fsck is now part of util-linux, let's prefer that version:
if [ -r $PKG/sbin/fsck ]; then
  mv $PKG/sbin/fsck $PKG/sbin/fsck-e2fsprogs
fi
if [ -r $PKG/usr/man/man8/fsck.8 ]; then
  mv $PKG/usr/man/man8/fsck.8 $PKG/usr/man/man8/fsck-e2fsprogs.8
fi

# Get rid of systemd cron.d cruft:
rm -rf $PKG/etc/cron.d

# findfs is intentionally left out here - we use the one in util-linux-ng
( cd $PKG/sbin
  rm -f \
    mkfs.ext2 mkfs.ext3 mkfs.ext4 mkfs.ext4dev \
    fsck.ext2 fsck.ext3 fsck.ext4dev e2label findfs
  ln -sf mke2fs mkfs.ext2
  ln -sf mke2fs mkfs.ext3
  ln -sf mke2fs mkfs.ext4
  ln -sf mke2fs mkfs.ext4dev
  ln -sf tune2fs e2label
  cat << EOF > fsck.ext2
#!/bin/bash
exec /sbin/e2fsck -C 0 \$*
EOF
  chmod 0755 fsck.ext2
  # Why won't symlinks work here?  --RW
  # Because $0 will always be "fsck.ext2" in that case.  --PJV
  # rworkman is correct, so ignore the previous two comments  :)  --PJV
  cp -a fsck.ext2 fsck.ext3
  cp -a fsck.ext2 fsck.ext4
  cp -a fsck.ext2 fsck.ext4dev
)
( cd $PKG/usr/man/man5
  ln -sf ext4.5 ext2.5
  ln -sf ext4.5 ext3.5
)
( cd $PKG/usr/man/man8
  rm -f fsck.ext2.8 fsck.ext3.8 mkfs.ext2.8 mkfs.ext3.8 \
    mkfs.ext4.8 mkfs.ext4dev.8
  ln -sf e2fsck.8 fsck.ext2.8
  ln -sf e2fsck.8 fsck.ext3.8
  ln -sf e2fsck.8 fsck.ext4.8
  ln -sf e2fsck.8 fsck.ext4dev.8
  ln -sf mke2fs.8 mkfs.ext2.8
  ln -sf mke2fs.8 mkfs.ext3.8
  ln -sf mke2fs.8 mkfs.ext4.8
  ln -sf mke2fs.8 mkfs.ext4dev.8
)

# Compress manual pages:
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

mkdir -p $PKG/usr/doc/e2fsprogs-$VERSION
cp -a \
  COPYING* INSTALL* NOTICE README* RELEASE-NOTES SHLIBS SUBMITTING-PATCHES \
  $PKG/usr/doc/e2fsprogs-$VERSION
cp -a ext2ed/COPYRIGHT $PKG/usr/doc/e2fsprogs-$VERSION/COPYRIGHT.ext2ed
cp -a ext2ed/README $PKG/usr/doc/e2fsprogs-$VERSION/README.ext2ed
cp -a lib/uuid/COPYING $PKG/usr/doc/e2fsprogs-$VERSION/COPYING.uuid
chmod 644 $PKG/usr/doc/e2fsprogs-$VERSION/*

# If RELEASE-NOTES is a symlink, fix that:
if [ -L $PKG/usr/doc/e2fsprogs-$VERSION/RELEASE-NOTES ]; then
  rm $PKG/usr/doc/e2fsprogs-$VERSION/RELEASE-NOTES
  cp -a $(readlink RELEASE-NOTES) $PKG/usr/doc/e2fsprogs-$VERSION/RELEASE-NOTES
  chmod 644 $PKG/usr/doc/e2fsprogs-$VERSION/RELEASE-NOTES
fi

# Trim RELEASE-NOTES to only include recent history:
if [ -r RELEASE-NOTES ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat RELEASE-NOTES | head -n 1000 > $DOCSDIR/RELEASE-NOTES
  touch -r RELEASE-NOTES $DOCSDIR/RELEASE-NOTES
fi

mkdir -p $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 $TMP/e2fsprogs-$VERSION-$ARCH-$BUILD.txz