#!/bin/bash

# Copyright 2008, 2009, 2010, 2016, 2018, 2019, 2022  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.

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

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

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

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

cd $TMP
tar xvf $CWD/texinfo-$VERSION.tar.xz || exit 1
cd texinfo-$VERSION || exit 1
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 {} \+

# The --disable-perl-xs below prevents some perl extensions from being replaced
# by C versions which have been known to choke over UTF-8 issues:
# NOTE (12/2022): Removed this option to get a2ps building again. Looks like
# Arch (at least) does not include this option either.

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/texinfo-$VERSION \
  --build=$ARCH-slackware-linux || exit 1

make $NUMJOBS || make || exit 1
# Don't run this - it falls over with perl-5.38.0:
#make update-po || exit 1
make install DESTDIR=$PKG || exit 1

gzip -9 $PKG/usr/info/*info*
gzip -9 $PKG/usr/man/man?/*

# Add update-info-dir script and manpage originally from Debian:
mkdir -p $PKG/usr/sbin
cp -a $CWD/update-info-dir.gz $PKG/usr/sbin
gzip -d $PKG/usr/sbin/update-info-dir.gz
chown root:root $PKG/usr/sbin/update-info-dir
chmod 755 $PKG/usr/sbin/update-info-dir
mkdir -p $PKG/usr/man/man8
cp -a $CWD/update-info-dir.8.gz $PKG/usr/man/man8
chown root:root $PKG/usr/man/man8/update-info-dir.8.gz
chmod 644 $PKG/usr/man/man8/update-info-dir.8.gz

# Eliminate stale /usr/info/dir:
rm -f $PKG/usr/info/dir

# Run update-info-dir to get a current /usr/info/dir, then install it into the
# package as .new:
sh $PKG/usr/sbin/update-info-dir
cp -a /usr/info/dir $PKG/usr/info/dir.new

mkdir -p $PKG/usr/doc/texinfo-$VERSION
cp -a \
  ABOUT-NLS AUTHORS COPYING* INSTALL INTRODUCTION NEWS README* TODO \
  $PKG/usr/doc/texinfo-$VERSION
chmod 644 $PKG/usr/doc/texinfo-$VERSION/*
chown -R root:root $PKG/usr/doc/texinfo-$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
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 $TMP/texinfo-$VERSION-$ARCH-$BUILD.txz