#!/bin/bash

# Slackware build script for convertlit

# Written by B. Watson (urchlay@slackware.uk)

# 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.

# 20210926 bkw: BUILD=4
# - actually use SLKCFLAGS.
# - add man page for lit2epub.
# 20170131 bkw: BUILD=3, REQUIRES was ltm, now libtommath

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

PRGNAM=convertlit
VERSION=${VERSION:-1.8}
BUILD=${BUILD:-3}
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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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 /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -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

# 20210926 bkw: SLKCFLAGS weren't being used. Derp.
sed -i "s,-O[23],$SLKCFLAGS," */Makefile

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

# convertlit man page borrowed from Debian, lit2epub written by
# SlackBuild author.
mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz
gzip -9c < $CWD/lit2epub.1 > $PKG/usr/man/man1/lit2epub.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