From 38c37f473d2d0842d6bf37ff781c6d983917da95 Mon Sep 17 00:00:00 2001
From: Drew Risinger <drewrisinger@users.noreply.github.com>
Date: Mon, 27 Jan 2020 14:33:31 -0500
Subject: [PATCH] pythonPackages.osqp: init at 0.6.1

Oxford Splitting QP solver.
Dependency for cvxpy -> qiskit-aer.
---
 .../python-modules/osqp/default.nix           | 51 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 2 files changed, 53 insertions(+)
 create mode 100644 pkgs/development/python-modules/osqp/default.nix

diff --git a/pkgs/development/python-modules/osqp/default.nix b/pkgs/development/python-modules/osqp/default.nix
new file mode 100644
index 000000000000..237ad7a7a00a
--- /dev/null
+++ b/pkgs/development/python-modules/osqp/default.nix
@@ -0,0 +1,51 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, cmake
+, future
+, numpy
+  # check inputs
+, scipy
+, pytestCheckHook
+, mkl
+}:
+
+buildPythonPackage rec {
+  pname = "osqp";
+  version = "0.6.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "130frig5bznfacqp9jwbshmbqd2xw3ixdspsbkrwsvkdaab7kca7";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  dontUseCmakeConfigure = true;
+
+  propagatedBuildInputs = [
+    numpy
+    future
+  ];
+
+  checkInputs = [ scipy pytestCheckHook mkl ];
+  pythonImportsCheck = [ "osqp" ];
+  dontUseSetuptoolsCheck = true;  # running setup.py fails if false
+  preCheck = ''
+    export LD_LIBRARY_PATH=${lib.strings.makeLibraryPath [ mkl ]}:$LD_LIBRARY_PATH;
+  '';
+
+  meta = with lib; {
+    description = "The Operator Splitting QP Solver";
+    longDescription = ''
+      Numerical optimization package for solving problems in the form
+        minimize        0.5 x' P x + q' x
+        subject to      l <= A x <= u
+
+      where x in R^n is the optimization variable
+    '';
+    homepage = "https://osqp.org/";
+    downloadPage = "https://github.com/oxfordcontrol/osqp";
+    license = licenses.asl20;
+    maintainers = with lib.maintainers; [ drewrisinger ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 63cde6669fe8..8ee05ad69e69 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2985,6 +2985,8 @@ in {
 
   oscrypto = callPackage ../development/python-modules/oscrypto { };
 
+  osqp = callPackage ../development/python-modules/osqp { };
+
   oyaml = callPackage ../development/python-modules/oyaml { };
 
   pamela = callPackage ../development/python-modules/pamela { };