From 2c7295ebe09d556f786b330eeadfbc2e187e6f02 Mon Sep 17 00:00:00 2001
From: Chris Ostrouchov <chris.ostrouchov@gmail.com>
Date: Tue, 11 Sep 2018 16:41:17 -0400
Subject: [PATCH] quantum-espresso: init at 6.3

---
 .../chemistry/quantum-espresso/default.nix    | 49 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  6 +++
 2 files changed, 55 insertions(+)
 create mode 100644 pkgs/applications/science/chemistry/quantum-espresso/default.nix

diff --git a/pkgs/applications/science/chemistry/quantum-espresso/default.nix b/pkgs/applications/science/chemistry/quantum-espresso/default.nix
new file mode 100644
index 00000000000..7a7f1b3596d
--- /dev/null
+++ b/pkgs/applications/science/chemistry/quantum-espresso/default.nix
@@ -0,0 +1,49 @@
+{ stdenv, fetchurl
+, gfortran, fftw, openblas
+, mpi ? null
+}:
+
+stdenv.mkDerivation rec {
+  version = "6.3";
+  name = "quantum-espresso-${version}";
+
+  src = fetchurl {
+    url = "https://gitlab.com/QEF/q-e/-/archive/qe-${version}/q-e-qe-${version}.tar.gz";
+    sha256 = "1738z3nhkzcrgnhnfg1r4lipbwvcrcprwhzjbjysnylmzbzwhrs0";
+  };
+
+  passthru = {
+    inherit mpi;
+  };
+
+  preConfigure = ''
+    patchShebangs configure
+  '';
+
+  # remove after 6.3 version:
+  # makefile needs to ignore install directory easier than applying patch
+  preInstall = ''
+    printf "\n.PHONY: install\n" >> Makefile
+  '';
+
+  buildInputs = [ fftw openblas gfortran ]
+    ++ (stdenv.lib.optionals (mpi != null) [ mpi ]);
+
+configureFlags = if (mpi != null) then [ "LD=${mpi}/bin/mpif90" ] else [ "LD=${gfortran}/bin/gfortran" ];
+
+  makeFlags = [ "all" ];
+
+  meta = with stdenv.lib; {
+    description = "Electronic-structure calculations and materials modeling at the nanoscale";
+    longDescription = ''
+        Quantum ESPRESSO is an integrated suite of Open-Source computer codes for
+        electronic-structure calculations and materials modeling at the
+        nanoscale. It is based on density-functional theory, plane waves, and
+        pseudopotentials.
+      '';
+    homepage = https://www.quantum-espresso.org/;
+    license = licenses.gpl2;
+    platforms = [ "x86_64-linux" ];
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 416ec54a231..af45c2ec462 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -20625,6 +20625,12 @@ with pkgs;
 
   pymol = callPackage ../applications/science/chemistry/pymol { };
 
+  quantum-espresso = callPackage ../applications/science/chemistry/quantum-espresso { };
+
+  quantum-espresso-mpi = callPackage ../applications/science/chemistry/quantum-espresso {
+     mpi = openmpi;
+  };
+
   ### SCIENCE/GEOMETRY
 
   drgeo = callPackage ../applications/science/geometry/drgeo {