#!/bin/bash
#  Copyright (C) 2010-2012  Matias 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=1_49_0
PKG_VER=${V//_/.}
ARCH=${ARCH:-i486}
B=2

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

# Parallel jobs for the compiler:
JOBS=${JOBS:=-j5}

# Get Python serie number:
PYTHON_VER=$(python -c 'import sys; print sys.version[:3]')

PKG=${TMP}/package-boost

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

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

cd boost_${V}

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

# Include MPI support:
echo "using mpi ;" >> tools/build/v2/user-config.jam

# Build and install JAM:
pushd tools/build/v2/engine
  chmod 755 build.sh
  CFLAGS="$DCFLAGS" ./build.sh cc
  install -m 0755 bin.linuxx86/bjam -D ${PKG}/usr/bin/bjam
popd

# Build and install BCP:
pushd tools/bcp
  ../build/v2/engine/bin.linuxx86/bjam  # Run bjam.
popd
install -m 0755 dist/bin/bcp -D ${PKG}/usr/bin/bcp

# And now, turn to build BOOST (-:
./tools/build/v2/engine/bin.linuxx86/bjam $JOBS \
 --prefix=/usr \
 --libdir=/usr/lib \
 --layout=system \
 --toolset=gcc \
 threading=multi \
 runtime-link=shared link=shared,static \
 variant=release \
 debug-symbols=off \
 cflags="$DCFLAGS" \
 -sZLIB_INCLUDE=/usr/include \
 -sZLIB_LIBPATH=/usr/lib \
 -sEXPAT_INCLUDE=/usr/include \
 -sEXPAT_LIBPATH=/usr/lib \
 -sPYTHON_ROOT=/usr \
 -sPYTHON_VERSION="$PYTHON_VER"

# Install BOOST:
install -d ${PKG}/usr/{lib,include}
./tools/build/v2/engine/bin.linuxx86/bjam \
 --prefix=${PKG}/usr \
 --libdir=${PKG}/usr/lib \
 --layout=system \
 --toolset=gcc \
 threading=multi \
 runtime-link=shared link=shared,static \
 variant=release \
 debug-symbols=off \
 cflags="$DCFLAGS" \
 -sZLIB_INCLUDE=/usr/include \
 -sZLIB_LIBPATH=/usr/lib \
 -sEXPAT_INCLUDE=/usr/include \
 -sEXPAT_LIBPATH=/usr/lib \
 -sPYTHON_ROOT=/usr \
 -sPYTHON_VERSION="$PYTHON_VER" \
 install

# Build and install "pyste" (the boost code generator for Python):
pushd libs/python/pyste/install
  python setup.py install --root=$PKG
popd

# 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
)
strip --strip-debug ${PKG}/usr/lib/*.a

# Copy the documentation:
mkdir -p ${PKG}/usr/doc/boost-${PKG_VER}
cp -a LICENSE* ${PKG}/usr/doc/boost-${PKG_VER}

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

cd $PKG
makepkg -l ${OUT}/boost-${PKG_VER}-${ARCH}-${B}.tlz