#!/bin/bash

# Slackware build script for convertlit

# Written by B. Watson (yalhcru@gmail.com)

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

# The original name of this program was also a term for a part of female
# anatomy, not usually considered polite in mixed company. Upstream changed
# the package name, but not the actual executable. I've renamed the binary
# to convertlit to keep things SFW.

PRGNAM=convertlit
VERSION=${VERSION:-1.8}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

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

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

set -e

SRCVER="$( echo $VERSION | sed 's/\.//')"
SRCNAME="$PRGNAM${SRCVER}src"

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAME
mkdir -p $SRCNAME
cd $SRCNAME
unzip $CWD/$SRCNAME.zip
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 \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# use system-installed ltm
sed -i \
 -e 's,-I *\.\./libtommath[^ ]*/,,' \
 -e 's,\.\./libtommath[^ ]*/libtommath\.a,-ltommath,' \
 cl?t$SRCVER/Makefile

# update the help message to reflect the name change
sed -i '/^"/s,cl.t,'$PRGNAM,g cl?t$SRCVER/cl?t.c

make -C lib
make -C cl?t$SRCVER

mkdir -p $PKG/usr/bin
install -s -m0755 cl?t$SRCVER/cl?t $PKG/usr/bin/$PRGNAM

# handy wrapper script
install -m0755 $CWD/lit2epub $PKG/usr/bin

# man page borrowed from Debian
mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
sed 's,\r,,' cl?t$SRCVER/COPYING > $PKG/usr/doc/$PRGNAM-$VERSION/COPYING
sed '/^Build/,$d' README > $PKG/usr/doc/$PRGNAM-$VERSION/README
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}