#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2017, 2018, 2019, 2021  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.

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

PKGNAM=xpdf
VERSION=4.03
PATCHLEVEL=
BUILD=${BUILD:-3}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-${VERSION}${PATCHLEVEL}-$ARCH-$BUILD.txz"
  exit 0
fi

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-xpdf

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf xpdf-$VERSION
tar xvf $CWD/xpdf-$VERSION.tar.?z || exit 1
cd xpdf-$VERSION || 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 {} \+

zcat $CWD/patches/xpdfrc.diff.gz | patch -p1 --verbose || exit 1

mkdir build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DCMAKE_INSTALL_MANDIR=/usr/man \
    -DCMAKE_BUILD_TYPE=Release \
    -DXPDFWIDGET_PRINTING=1 \
    -DSYSTEM_XPDFRC="/etc/xpdfrc" \
    .. || exit 1
  make $NUMJOBS || make || exit 1
  make install DESTDIR=$PKG || exit 1
cd ..

chmod 0755 $PKG/usr/bin/*
gzip -9 $PKG/usr/man/man?/*

# We'll use the versions of these from the poppler derived work (if they exist here):
for file in pdfinfo pdftops pdftoppm pdftohtml pdftotext pdfimages pdffonts ; do
  rm -f $PKG/usr/bin/${file}
  rm -f $PKG/usr/man/man1/${file}.1.gz
done

# Don't clobber /etc/xpdfrc
mkdir -p $PKG/etc
cat doc/sample-xpdfrc > $PKG/etc/xpdfrc
mv $PKG/etc/xpdfrc $PKG/etc/xpdfrc.new

# Add desktop menu entry and icon:
mkdir -p $PKG/usr/share/{applications,pixmaps}
cat $CWD/xpdf.desktop > $PKG/usr/share/applications/xpdf.desktop
cat $CWD/xpdfIcon.xpm > $PKG/usr/share/pixmaps/xpdfIcon.xpm

# Add additional language support:
for language in xpdf-arabic xpdf-chinese-simplified xpdf-chinese-traditional xpdf-cyrillic xpdf-greek xpdf-hebrew xpdf-japanese xpdf-korean xpdf-latin2 xpdf-thai xpdf-turkish ; do
  rm -rf ${language}
  tar xf $CWD/lang/${language}*.tar.?z
  ( cd ${language}
    echo "Patching for ${language}:"
    zcat $CWD/lang/${language}.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
    chown -R root:root .
    find . -type f -exec chmod 644 {} \+
    cat add-to-xpdfrc >> $PKG/etc/xpdfrc.new
    mkdir -p $PKG/usr/share/xpdf/$(echo ${language} | cut -f2- -d -)
    cp -a * $PKG/usr/share/xpdf/$(echo ${language} | cut -f2- -d -)
  ) || exit 1 
done

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

# Remove .orig files from the package:
find $PKG -name "*.orig" -exec rm "{}" \;

mkdir -p $PKG/usr/doc/xpdf-$VERSION
cp -a \
  ANNOUNCE CHANGES COPYING* INSTALL README \
  $PKG/usr/doc/xpdf-$VERSION
chmod 0644 $PKG/usr/doc/xpdf-$VERSION/*

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r CHANGES ]; then
  DOCSDIR=$(echo $PKG/usr/doc/*-$VERSION)
  cat CHANGES | tail -n 1000 > $DOCSDIR/CHANGES
  touch -r CHANGES $DOCSDIR/CHANGES
fi

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

# Build the package:
cd $PKG
/sbin/makepkg -l y -c n $TMP/xpdf-${VERSION}${PATCHLEVEL}-$ARCH-$BUILD.txz