#!/bin/bash

# Slackware build script for <wise>

# Copyright 2023 Petar Petrov, slackalaxy@gmail.com
# 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)

PRGNAM=wise
VERSION=${VERSION:-2.4.1}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

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

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/${PRGNAM}_${VERSION}.orig.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

patch -p1 -i $CWD/patches/01_welcome-csh.patch
patch -p1 -i $CWD/patches/02_isnumber.patch
patch -p1 -i $CWD/patches/03_doc-nodycache.patch
patch -p1 -i $CWD/patches/04_wise2-pdflatex-update.patch
patch -p1 -i $CWD/patches/05_glib2.patch
patch -p1 -i $CWD/patches/06_getline.patch
patch -p1 -i $CWD/patches/07_ld--as-needed.patch
patch -p1 -i $CWD/patches/08_mayhem.patch
patch -p1 -i $CWD/patches/09_dnal-add-return-statement.patch
patch -p1 -i $CWD/patches/10_fix_path_to_data_files.patch
patch -p1 -i $CWD/patches/11_consistent_manual_dates.patch
patch -p1 -i $CWD/patches/spelling.patch
patch -p1 -i $CWD/patches/cross.patch

# This prevents some weird build breaks. Thanks to Urchlay. His explanation:
#
# The .c files that are in the tarball, were already built from the .dy
# files. However, some of them get patched, e.g. wisefile.c and wisefile.dy
# both have a modification time of the current time/date, which is why make
# thinks it needs to rebuild the wisefile.c. When make is run, it looks at
# the timestamps and decided wisefile.c is older than wisefile.dy (which it
# is, ever so slightly, assuming the filesystem's timestamp resolution is
# fine enough). What the solution does is force the timestamp on all the
# .dy files to be older than the generated .c files, so make won't think it
# needs to run dyc to generate the .c files.
find src -name \*.dy -print0 | xargs -0 touch -d '2000-01-01'

cd src
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
make all

mkdir -p $PKG/usr/bin
mkdir -p $PKG/usr/share/$PRGNAM

cd bin
for i in * ; do
	install -m 755 $i $PKG/usr/bin/$i
done
	
cd ../..
cp -a test_data wisecfg/* $PKG/usr/share/$PRGNAM

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  LICENSE README docs/{*.tex,*.eps,papers} \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE