#!/bin/sh

# Slackware build script for fbpdf

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

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

# Source tarball made from: git clone git://repo.or.cz/fbpdf.git

PRGNAM=fbpdf
VERSION=${VERSION:-20140822}
BUILD=${BUILD:-2}
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

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 {} \;

# This patch has been sent upstream. In my opinion, fbpdf is needlessly
# difficult to use without it.
# ...a year later, and upstream never responded to my email (not even to
# say "no"). It's staying here though.
[ "${PRISTINE:-no}" != "yes" ] && \
  patch -p1 < $CWD/navigation.diff

# mupdf API keeps changing

sed -i \
  -e 's,-lmupdf -lmujs,`pkg-config --libs mupdf`,' \
  -e 's,-lopenjpeg,-lopenjp2,' \
  Makefile

mkdir -p $PKG/usr/bin

# always build these two.
make ${PRGNAM}2 fbdjvu
install -s -m0755 ${PRGNAM}2 $PKG/usr/bin
install -s -m0755 fbdjvu $PKG/usr/bin

# autodetect mupdf, apply patch if needed.
if pkg-config --exists mupdf; then
  MUPDFVER="$( pkg-config --modversion mupdf 2>/dev/null | \
            sed 's,^[0-9]*\.\([0-9][0-9]*\).*,\1,' )"
  [ "$MUPDFVER" != "" -a "$MUPDFVER" -gt "6" ] &&
    patch -p1 < $CWD/mupdf-1.7a.diff
  make clean
  make $PRGNAM
  install -s -m0755 $PRGNAM $PKG/usr/bin
fi

# man page written for this build.
mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz
ln -s $PRGNAM.1.gz $PKG/usr/man/man1/${PRGNAM}2.1.gz
ln -s $PRGNAM.1.gz $PKG/usr/man/man1/fbdjvu.1.gz

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README $PKG/usr/doc/$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}