#!/bin/bash

# Slackware build script for isomd5sum

# Written by B. Watson (yalhcru@gmail.com)
# Modified by Willy Sudiarto Raharjo <willysr@slackware-id.org>
# Modified again by B. Watson

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20180611 bkw: update for v1.2.3
# 20171214 bkw: update for v1.2.2
# 20170614 bkw: update for v1.2.1
# 20170302 bkw: use long-format github URL

PRGNAM=isomd5sum
VERSION=${VERSION:-1.2.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# The Makefile is smart enough to use lib or lib64 as appropriate,
# no LIBDIRSUFFIX needed here.

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.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 {} \;

sed -i \
  -e 's,/usr/share/man,/usr/man,' \
  -e 's/-Werror/ /' \
  -e "s,-O3,$SLKCFLAGS", \
  Makefile

# Build & install binaries, libs, and python2 support:
make -j1 \
  RPM_OPT_FLAGS="$SLKCFLAGS" \
  PYTHON=python2 \
  DESTDIR=$PKG \
  all install

# If python3 is installed, build support for it.
# Slack's python 2.x package has a python2-config command, but SBo's
# python 3.x doesn't have python3-config (only e.g. python3.3-config).
# The readlink/which stuff avoids hard-coding 3.3 in this script:
if python3 --version >/dev/null 2>&1; then
  make -j1 \
    RPM_OPT_FLAGS="$SLKCFLAGS" \
    PYTHON=$( readlink $( which python3 ) ) \
    DESTDIR=$PKG \
    clean all install-python
fi

# fix .pc file stupidity:
sed -i '/^\(libdir\|includedir\)/s,=.*usr,=/usr,' $PKG/usr/share/pkgconfig/$PRGNAM.pc
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

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README COPYING testpyisomd5sum.py $PKG/usr/doc/$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:-tgz}