#!/bin/bash

# Slackware build script for numpy3

# Copyright 2015-2021 Christoph Willing  Brisbane, Australia
# 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.

# Based with thanks on original numpy scripts by
# Aleksandar Samardzic <asamardzic@gmail.com> and Serban Udrea <S.Udrea@gsi.de>

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

PRGNAM=numpy3
SRCNAM=numpy
VERSION=${VERSION:-1.20.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

PYTHON_VERSIONS="3"

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

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

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

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xf $CWD/$SRCNAM-$VERSION.tar.gz
cd $SRCNAM-$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 {} \;

# You may want to force numpy to link against a special kind of ATLAS
#
ATLAS_SHARED="${ATLAS_SHARED:-yes}"
ATLAS_SHARED=$(echo "$ATLAS_SHARED"|cut -b 1|tr a-z A-Z)
ATLAS_NO_THREADS="${ATLAS_NO_THREADS:-no}"
ATLAS_NO_THREADS=$(echo "$ATLAS_NO_THREADS"|cut -b 1|tr a-z A-Z)

if [ "$ATLAS_SHARED" = "Y" ]; then
  if [ "$ATLAS_NO_THREADS" = "Y" ]; then
    echo -e "[atlas]\natlas_libs = satlas" >> site.cfg
    echo -e "lapack_libs = satlas\nlapack_atlas = satlas\n" >> site.cfg
  fi
else
  if [ "$ATLAS_NO_THREADS" = "Y" ]; then
    echo -e "[atlas]\natlas_libs = f77blas,cblas,atlas" >> site.cfg
    echo -e "lapack_libs = lapack\nlapack_atlas = lapack\n" >> site.cfg
  else
    echo -e "[atlas]\natlas_libs = ptf77blas,ptcblas,atlas" >> site.cfg
    echo -e "lapack_libs = ptlapack\nlapack_atlas = ptlapack\n" >> site.cfg
  fi
fi

NO_UMFPACK=${NO_UMFPACK:-yes}
case "$NO_UMFPACK" in
 [yY]|[yY][eE][sS]) NO_UMFPACK="y" ;;
                 *) NO_UMFPACK="" ;;
esac

if [ ! "$NO_UMFPACK" ]; then
  echo -e "[amd]\nlibrary_dirs = /usr/lib${LIBDIRSUFFIX}" >> site.cfg
  echo -e "include_dirs = /usr/include/amd\namd_libs = amd\n" >> site.cfg
  echo -e "[umfpack]\nlibrary_dirs = /usr/lib${LIBDIRSUFFIX}" >> site.cfg
  echo -e "include_dirs = /usr/include/umfpack\numfpack_libs = umfpack\n" \
          >> site.cfg
fi

DEBUG=${DEBUG:-no}
case "$DEBUG" in
 [yY]|[yY][eE][sS]) DEBUG="y" ;;
                 *) DEBUG="" ;;
esac

for v in $PYTHON_VERSIONS ; do
  if [ $(which python$v 2>/dev/null) ]; then
    if [ ! "$DEBUG" ]; then
      NPY_RELAXED_STRIDES_CHECKING=${NPY_RSC:-1} python$v setup.py install --root $PKG

      find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
      | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
    else
      NPY_RELAXED_STRIDES_CHECKING=${NPY_RSC:-1} python$v setup.py build --debug
      python$v setup.py install --root $PKG
    fi
  fi
done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a LICENSE.txt THANKS.txt INSTALL.rst.txt PKG-INFO \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
find $PKG/usr/doc -type f -exec chmod 0644 {} \;

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:-tgz}