with import <nixpkgs> {};

let

  ufl      = import ./ufl.nix;
  fiat     = import ./fiat.nix;
  finat    = import ./finat.nix;
  tsfc     = import ./tsfc.nix;
  pyop2    = import ./pyop2.nix;
  petsc    = import ./petsc.nix;
  petsc4py = import ./petsc4py.nix;
  coffee   = import ./coffee.nix;

in

  python27Packages.buildPythonPackage rec {
    version = "a967a34c0f05d3dbfb9be05825777da40a6195dc";
    name = "firedrake-${version}";

    src = fetchFromGitHub {
      owner = "firedrakeproject";
      repo = "firedrake";
      rev = "${version}";
      sha256 = "1mf9vmmin51x2wgz8fdvbw27y6w41qg488f7c2hifx74jdr2ggfd";
    };

    buildInputs = [
      openmpi
      hdf5
      libspatialindex
      python27Packages.cython
      python27Packages.pytest_29
      python27Packages.pytest_xdist
      python27Packages.pylint
      petsc
    ];

    propagatedBuildInputs = [
      python27Packages.h5py
      python27Packages.six
      python27Packages.sympy
      python27Packages.psutil
      python27Packages.cachetools
      python27Packages.singledispatch
      python27Packages.ipython
      python27Packages.matplotlib
      ufl
      fiat
      finat
      tsfc
      pyop2
      petsc4py
      coffee
    ];

    patches = [ ./firedrake-setup.patch ];

    meta = {
      homepage = "http://www.firedrakeproject.org";
      description = "Firedrake is an automated system for the portable solution of partial differential equations using the finite element method (FEM).";
      license = licenses.gpl3;
    };
  }