#!/bin/sh

# Copyright 2008, 2009, 2012  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.

PKGNAM=x3270
VERSION=3.3
TARBVER=${TARBVER:-$(echo $PKGNAM-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
VERSION=$(echo $TARBVER | cut -f 1,2 -d .)
BUILD=${BUILD:-2}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i486 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

NUMJOBS=${NUMJOBS:-" -j7 "}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-x3270

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf x3270-$VERSION
tar xvf $CWD/x3270-$TARBVER.tar.?z* || exit 1
cd x3270-3.3 || 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 {} \;

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc/X11 \
  --build=$ARCH-slackware-linux

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

mv $PKG/etc/X11/x3270/ibm_hosts $PKG/etc/X11/x3270/ibm_hosts.new
find $PKG -name fonts.dir -exec rm {} \;
if [ -d $PKG/usr/lib$LIBDIRSUFFIX/X11/fonts/misc ]; then
  mkdir -p $PKG/usr/share/fonts
  mv $PKG/usr/lib$LIBDIRSUFFIX/X11/fonts/misc $PKG/usr/share/fonts
  rmdir $PKG/usr/lib$LIBDIRSUFFIX/X11/fonts/misc 2> /dev/null
  rmdir $PKG/usr/lib$LIBDIRSUFFIX/X11/fonts 2> /dev/null
  rmdir $PKG/usr/lib$LIBDIRSUFFIX/X11 2> /dev/null
  rmdir $PKG/usr/lib$LIBDIRSUFFIX 2> /dev/null
fi

mkdir -p $PKG/etc/X11/app-defaults
cat X3270.xad > $PKG/etc/X11/app-defaults/X3270

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

mkdir -p $PKG/usr/man/man{1,5}
for file in x3270-script.man x3270.man x3270if.man ; do
  cat $file | gzip -9c > $PKG/usr/man/man1/`basename $file .man`.1.gz
done
cat ibm_hosts.man | gzip -9c > $PKG/usr/man/man5/ibm_hosts.5.gz

mkdir -p $PKG/usr/doc/x3270-$TARBVER
cp -a \
  LICENSE README* Examples html \
  $PKG/usr/doc/x3270-$TARBVER

mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/x3270-$TARBVER-$ARCH-$BUILD.txz