#!/bin/bash
#  Copyright (C) 2010  Matías A. Fonzo, <selk@dragora.org>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

CWD=$(pwd)

TMP=${TMP:-/tmp/sources}
OUT=${OUT:-/tmp/packages}

V=9.00_libre
ARCH=${ARCH:-x86_64}
B=3

# Flags for the compiler:
DCFLAGS=${DCFLAGS:=-mtune=generic}

PKG=${TMP}/package-ghostscript

rm -rf $PKG
mkdir -p $PKG $OUT

echo "Uncompressing the tarball..."
rm -rf ${TMP}/ghostscript-${V}
lzip -cd ${CWD}/ghostscript-${V}.tar.lz | tar -xvf - -C $TMP

cd ${TMP}/ghostscript-${V}

# Set sane ownerships and permissions:
chown -R 0:0 .
find . ! -type l \
 \( -perm 2777 -o \
    -perm 777  -o \
    -perm 775  -o \
    -perm 711  -o \
    -perm 555  -o \
    -perm 511     \
 \) -exec chmod 755 {} + \
  -o \
 \( -perm 666 -o \
    -perm 664 -o \
    -perm 600 -o \
    -perm 444 -o \
    -perm 440 -o \
    -perm 400    \
 \) -exec chmod 644 {} +

# Use system libraries rather than local copies:
rm -rf jasper jpeg libpng tiff expat

# Compile with the system-installed jasper library (thanks to BLFS):
zcat ${CWD}/patches/ghostscript-8.71-system_jasper-1.patch.gz | \
 patch -p1 --verbose

# Build IJS:
pushd ijs
  chmod 755 autogen.sh
  CFLAGS="$DCFLAGS" \
  CXXFLAGS="$DCFLAGS" \
  ./autogen.sh \
   --prefix=/usr \
   --libdir=/usr/lib64 \
   --mandir=/usr/man \
   --localstatedir=/var \
   --disable-static \
   --enable-shared \
   --build=${ARCH}-dragora-linux-gnu
  make
  make install DESTDIR=$PKG
popd

CFLAGS="$DCFLAGS" \
CXXFLAGS="$DCFLAGS" \
./configure \
 --prefix=/usr \
 --libdir=/usr/lib64 \
 --sysconfdir=/etc \
 --localstatedir=/var \
 --mandir=/usr/man \
 --docdir=/usr/doc/ghostscript-${V} \
 --htmldir=/usr/doc/ghostscript-${V}/html \
 --disable-compile-inits \
 --enable-dynamic \
 --with-fontpath=/usr/share/fonts/X11/TTF:/usr/share/fonts/Type1:/usr/share/fonts \
 --with-ijs \
 --with-omni \
 --with-drivers=ALL \
 --with-system-libtiff \
 --build=${ARCH}-dragora-linux-gnu

make
make install soinstall DESTDIR=$PKG

# Strip binaries & libraries:
( cd $PKG
  find . -type f | xargs file | awk '/ELF/ && /executable/ || /shared object/' | \
   cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

# Unpack extra fonts:
( cd ${PKG}/usr/share/ghostscript
  tar -xf ${CWD}/fonts/ghostscript-fonts-std-8.11.tar.lz
  tar -xf ${CWD}/fonts/ghostscript-fonts-other-6.0.tar.lz
  chown -R 0:0 .
)

# Compress and link manpages:
( cd ${PKG}/usr/man
  find . -type f -exec gzip -9N '{}' +
  find . -type l | while read file ; do
    ln -sf $(readlink $file).gz ${file}.gz
    rm $file
  done
)

# Copy the documentation:
mkdir -p ${PKG}/usr/doc/ghostscript-${V}
cp -a LICENSE ${PKG}/usr/doc/ghostscript-${V}

# Move HTML documentation to the right location:
( cd ${PKG}/usr/share/ghostscript/${V/_libre/}
  mv doc ${PKG}/usr/doc/ghostscript-${V}/html
  # Make symlink compatibility:
  ln -s /usr/doc/ghostscript-${V}/html doc
)

# Copy the description files:
mkdir -p ${PKG}/description
cp ${CWD}/description/* ${PKG}/description

cd $PKG
makepkg -l ${OUT}/ghostscript-${V}-${ARCH}-${B}.tlz