# $Id: PKGBUILD 143700 2015-10-11 19:15:19Z arojas $
# Maintainer (Arch): Evgeniy Alekseev <arcanis.arch at gmail dot com>
# Maintainer (Arch): Antonio Rojas <arojas@archlinux.org>
# Contributor (Arch): Daniel Wallace <danielwallace at gtmanfred dot com>
# Contributor (Arch): Thomas Dziedzic <gostrc at gmail dot com>
# Contributor (Arch): Osman Ugus <ugus11 at yahoo dot com>
# Contributor (Arch): Stefan Husmann <stefan-husmann at t-online dot de>
# Special thanks to Nareto for moving the compile from the .install to the PKGBUILD
# Maintainer: Omar Vega Ramos <ovruni@gnu.org.pe>
# Maintainer: André Silva <emulatorman@parabola.nu>

pkgname=sagemath
pkgver=6.9
pkgrel=1.parabola1
pkgdesc="Free Mathematics Software, free software replacement of Magma, Maple, Mathematica, and Matlab, without nonfree nauty recommendation"
arch=(i686 x86_64)
url="http://www.sagemath.org"
license=(GPL)
depends=(ipython2 atlas-lapack ppl mpfi palp brial singular libcliquer maxima-ecl gfan sympow tachyon python2-rpy2
  python2-matplotlib python2-scipy python2-sympy python2-networkx libgap gap flintqs lcalc lrcalc
  eclib gmp-ecm zn_poly gd python2-cvxopt pynac linbox gsl rubiks pari-galdata pari-seadata-small planarity rankwidth
  sage-data-combinatorial_designs sage-data-elliptic_curves sage-data-graphs sage-data-polytopes_db sage-data-conway_polynomials)
optdepends=('cython2: to compile cython code' 'jmol: 3D plots' 'sage-notebook: Browser-based (flask) notebook interface'
  'sagemath-doc: Documentation and inline help' 'ipython2-notebook: Jupyter notebook interface' 'mathjax: Jupyter notebook interface'
  'coin-or-cbc: COIN backend for numerical computations'
  'buckygen: for generating fullerene graphs' 'plantri: for generating some classes of graphs' 'benzene: for generating fusenes and benzenoids'
  'modular_decomposition: modular decomposition of graphs' 'ffmpeg: to export animations to video'
  'lrs: Algorithms for linear reverse search used in game theory and for computing volume of polytopes' 'imagemagick: to show animations'
  'coxeter3: Coxeter groups implementation' 'cryptominisat: SAT solver' 'arb: floating-point ball arithmetic')
makedepends=(cython2 boost ratpoints symmetrica fflas-ffpack python2-jinja coin-or-cbc
  mcqd coxeter3 cryptominisat arb modular_decomposition bliss-graphs) # libfes
conflicts=(sage-mathematics)
replaces=(sage-mathematics)
provides=(sage-mathematics)
source=("$pkgname-$pkgver.tar.gz::https://github.com/sagemath/sage/archive/$pkgver.tar.gz" 
# "http://www.sagemath.org/packages/upstream/pexpect/pexpect-2.0.tar.bz2" 
"http://mirrors.mit.edu/sage/spkg/upstream/pexpect/pexpect-2.0.tar.bz2" 'kernel.json'
'anal.h' 'package.patch' 'env.patch' 'paths.patch' 'clean.patch' 'skip-check.patch' 
'pexpect-env.patch' 'pexpect-del.patch' 'disable-fes.patch')
md5sums=('847ad447eaef17b2bc81bb4fae69c190'
         'd9a3e113ed147dcee8f89962a8dccd43'
         '4cee4f96bcd877587e7efc40c20adba7'
         'a906a180d198186a39820b0a2f9a9c63'
         '9ba81f717ffd4e20b8b2f2a318307488'
         '5ebdb6e6ac541f040a39f8d3fd9c8ee1'
         'fd8e3e07f5b7318e6a7200a3c64f5bc2'
         '23e972753be1e5d0f761a7f82a95cebf'
         '5947a420a0b1483f0cbc74c76895789b'
         'a83a3b1bc7fcb7cbf752a83a8311fc42'
         'f333939ea6c41377b66407c81016cee4'
         '4eb23a3c7363258bc9ba764d6e5512ba')

prepare(){
  cd sage-$pkgver

# Parabola-specific patches
# assume all optional packages are installed
  patch -p0 -i ../package.patch
# find L.h header
  sed -e 's|libLfunction|Lfunction|' -i src/sage/libs/lcalc/lcalc_sage.h
# don't try to link against libpng 1.2
  sed -e 's|png12|png|' -i src/module_list.py
# set env variables
  patch -p0 -i ../env.patch
# fix paths in python imports
  patch -p0 -i ../paths.patch
# don't try to remove installed files
  patch -p0 -i ../clean.patch
# skip checking build status
  patch -p0 -i ../skip-check.patch
# supress warning about GAP install dir
  sed -e "s|gapdir = os.path.join(SAGE_LOCAL, 'gap', 'latest')|gapdir = '/usr/lib/gap'|" -i src/sage/libs/gap/util.pyx 
# fix Cremona database detection
  sed -e "s|is_package_installed('database_cremona_ellcurve')|os.path.exists('/usr/share/sage/cremona/cremona.db')|" \
   -i src/sage/databases/cremona.py
# find bliss headers
  sed -e 's|graph.hh|bliss/graph.hh|' -i src/sage/graphs/bliss.pyx
# fix opening docs from Jupyter notebook
  sed -e "s|SageKernelSpec.identifier()|'SageMath'|g" -i src/sage/repl/ipython_kernel/kernel.py

# Upstream patches  
# fix build against libfes 0.2 http://trac.sagemath.org/ticket/15209
#  patch -p0 -i "$srcdir"/fes02.patch
# disable fes module, fails to compile
  patch -p0 -i ../disable-fes.patch

# use python2
  sed -e 's|#!/usr/bin/env python|#!/usr/bin/env python2|' -e 's|exec python|exec python2|' -i src/bin/*
  sed -e 's|cython %s %s|cython2 %s %s|' -e 's|python setup.py|python2 setup.py|' -i src/sage/misc/cython.py
  sed -e 's|exec ipython|exec ipython2|' -e 's|cygdb|cygdb2|' -i src/bin/sage
  sed -e "s|'cython'|'cython2'|" -i src/bin/sage-cython
  sed -e 's|python -c|python2 -c|' -i src/Makefile

# copy required private PARI header
  mkdir -p src/pari
  cp "$srcdir"/anal.h src/pari/anal.h

# remove developer interface
  rm -r src/sage/dev

  cd "$srcdir"/pexpect-2.0
# fix env in pexpect
  patch -p1 -i ../pexpect-env.patch
# hide exceptions in pexpect
  patch -p1 -i ../pexpect-del.patch
}


build() {
  cd sage-$pkgver/src

  export SAGE_LOCAL="/usr"
  export SAGE_SRC="$PWD"
  export CC=gcc

  make sage/libs/pari/auto_gen.pxi
  make sage/ext/interpreters/__init__.py

  python2 setup.py build

# build pexpect
  pushd "$srcdir"/pexpect-2.0
    python2 setup.py build
  popd
}

package() {
  cd sage-$pkgver/src

  export SAGE_ROOT="/usr"
  export SAGE_LOCAL="$SAGE_ROOT"
  export SAGE_SRC="$PWD"

  python2 setup.py install --root="$pkgdir" --optimize=1 --skip-build

  mkdir -p "$pkgdir"/usr/bin
  cp bin/sage "$pkgdir"/usr/bin
  for _i in arch-env banner cachegrind callgrind cleaner coverage coverageall CSI CSI-helper.py cython env eval grep grepdoc inline-fortran ipython \
    massif maxima.lisp native-execute notebook num-threads.py omega open preparse python rst2sws rst2txt run run-cython runtests startuptime.py \
    sws2rst valgrind version.sh
  do
    cp bin/sage-$_i "$pkgdir"/usr/bin
  done
  cp bin/math-readline "$pkgdir"/usr/bin
  
  mkdir -p "$pkgdir"/usr/share/sage
  cp -r ext "$pkgdir"/usr/share/sage
  
# Create SAGE_SRC, needed for the notebook
  mkdir "$pkgdir"/usr/share/sage/src

# Install Sage's own pexpect
  cd "$srcdir"/pexpect-2.0
  python2 setup.py install --root="$pkgdir" --optimize=1
  mkdir -p "$pkgdir"/usr/lib/sage/site-packages/
  mv "$pkgdir"/usr/lib/python2.7/site-packages/pexpect* "$pkgdir"/usr/lib/sage/site-packages/

# Install Jupyter kernel
  install -Dm644 "$srcdir"/kernel.json "$pkgdir"/usr/share/jupyter/kernels/sagemath/kernel.json
  cd "$pkgdir"/usr/share/jupyter/kernels/sagemath
  ln -s /usr/share/doc/sage/output/html/en doc
  ln -s /usr/share/sage/ext/notebook-ipython/logo.svg .
  ln -s /usr/share/sage/ext/notebook-ipython/logo-64x64.png .

  mkdir "$pkgdir"/usr/share/jupyter/nbextensions
  ln -s /usr/share/{jsmol,mathjax} "$pkgdir"/usr/share/jupyter/nbextensions
}