kind of working version of bindings #14

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "pybind11"]
-	path = pybind11
-	url = https://github.com/Pressio/pybind11.git

CMakeLists.txt

@@ -1,19 +1,29 @@
 
 cmake_minimum_required(VERSION 3.18.0)
 project(pressiodemoapps CXX)
-set (CMAKE_CXX_STANDARD 11)
+
+#=====================================================================
+# we need c++14
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+# test if compiler supports standard
+include(CheckCXXCompilerFlag)
+check_cxx_compiler_flag("-std=c++14" COMPILER_SUPPORT_CPP14)
+if(NOT COMPILER_SUPPORT_CPP14)
+  message(FATAL_ERROR "Compiler does not support -std=c++14. This is required.")
+endif()
 
 #=====================================================================
 # guard against in-source builds
 if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
   message(FATAL_ERROR "In-source builds are not allowed.
-    Please make a new directory (called a build directory) and run CMake from there.
-    You may need to remove CMakeCache.txt.")
+    Please make a new directory (e.g. build directory) and run CMake from there.")
 endif()
 
-#=====================================================================
-# check build type
+# default to release if build type is empty
 if (NOT CMAKE_BUILD_TYPE)
+  message(STATUS "${CMAKE_BUILD_TYPE} is not specified, defaulting to Release.")
   set(CMAKE_BUILD_TYPE "Release")
 endif()
 
@@ -26,27 +36,26 @@ if( NOT cmake_build_type_tolower STREQUAL "debug"
 endif()
 
 #=====================================================================
-# c++ standard
-#=====================================================================
-# commands to test if compiler supports standard
-include(CheckCXXCompilerFlag)
-check_cxx_compiler_flag("-std=c++11" COMPILER_SUPPORT_CPP11)
-if(NOT COMPILER_SUPPORT_CPP11)
-  message(FATAL_ERROR "Compiler does not support -std=c++11. This is required.")
-endif()
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS OFF)
+if(PRESSIODEMOAPPS_ENABLE_BINDINGS)
+  set(PYSRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/pysrc)
+  include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
+  add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/tpls/pybind11)
 
-#=====================================================================
-include_directories(
-  ${CMAKE_CURRENT_SOURCE_DIR}/include
-  ${CMAKE_CURRENT_SOURCE_DIR}/tpls/eigen/eigen3
-  ${CMAKE_CURRENT_SOURCE_DIR}/tpls/pressio/include)
+  set(modulename _pressiodemoappsimpl)
+  pybind11_add_module(${modulename} ${PYSRC_DIR}/main_binder.cc)
+  target_compile_definitions(${modulename} PRIVATE MODNAME=${modulename})
+  target_compile_definitions(${modulename} PRIVATE PRESSIODEMOAPPS_ENABLE_BINDINGS)
 
-#=====================================================================
-# tests are enabled if PRESSIODEMOAPPS_ENABLE_TESTS = ON
-if(PRESSIODEMOAPPS_ENABLE_TESTS)
-  enable_testing()
-  add_subdirectory(tests)
+else()
+
+  add_definitions(-DPRESSIODEMOAPPS_ENABLE_TPL_EIGEN=${PRESSIODEMOAPPS_ENABLE_TPL_EIGEN})
+  include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+    ${CMAKE_CURRENT_SOURCE_DIR}/tpls/eigen/eigen3
+    ${CMAKE_CURRENT_SOURCE_DIR}/tpls/pressio/include)
+
+  if(PRESSIODEMOAPPS_ENABLE_TESTS)
+    enable_testing()
+    add_subdirectory(testsCpp)
+  endif()
 endif()

DESCRIPTION.rst

@@ -0,0 +1,45 @@
+pressio-demoapps: Python bindings
+=================================
+
+This package provides Python bindings for the C++ library pressio-demoapps (website_).
+
+.. _website: https://pressio.github.io/pressio-demoapps
+
+
+Install
+-------
+
+You need a C++11-compliant compiler and then do:
+
+.. code-block:: bash
+
+  export CXX=<path-to-your-C++-compiler>
+  pip install pressio-demoapps
+
+
+You can double check that everything worked fine by doing:
+
+.. code-block:: python
+
+  import pressiodemoapps
+  print(pressiodemoapps.__version__)
+
+
+Running Demos/Tutorials
+-----------------------
+
+After installing the library, you can run the regression tests:
+
+TBD
+
+Documentation
+-------------
+
+TBD
+
+Citations
+---------
+
+If you use this package, please acknowledge our work-in-progress:
+
+TBD

include/advection.hpp

@@ -8,17 +8,20 @@
 #include "mesh.hpp"
 #include "weno.hpp"
 #include "./impl/advection1d/fluxes.hpp"
-
-#include "Eigen/Core"
-#include "Eigen/Sparse"
-#include "./impl/advection1d/eigen_linear.hpp"
+#include "./impl/advection1d/linear_adv_impl.hpp"
 
 namespace pressiodemoapps{
 
+#ifdef PRESSIODEMOAPPS_ENABLE_TPL_EIGEN
 template<class scalar_t, class mesh_t>
 using PeriodicLinearAdvection1dEigen =
-  pressiodemoapps::ad::impl::EigenLinearAdv<scalar_t, mesh_t>;
+  pressiodemoapps::ad::impl::LinearAdvT<
+  scalar_t, mesh_t,
+  Eigen::Matrix<scalar_t,-1,1>,
+  Eigen::Matrix<scalar_t,-1,1>,
+  Eigen::Matrix<scalar_t,-1,1>
+  >;
+#endif
 
 }
-
 #endif

include/euler.hpp

@@ -8,18 +8,20 @@
 #include "mesh.hpp"
 #include "weno.hpp"
 #include "./impl/eulerCommon/energy.hpp"
-
 #include "./impl/eulerCommon/fluxes.hpp"
 
+#include "./impl/euler2d/initial_condition.hpp"
+
+#ifdef PRESSIODEMOAPPS_ENABLE_TPL_EIGEN
 #include "Eigen/Core"
 #include "Eigen/Sparse"
 #include "./impl/euler1d/eigen_app.hpp"
-
-#include "./impl/euler2d/initial_condition.hpp"
 #include "./impl/euler2d/eigen_app.hpp"
+#endif
 
 namespace pressiodemoapps{
 
+#ifdef PRESSIODEMOAPPS_ENABLE_TPL_EIGEN
 template<class scalar_t, class mesh_t>
 using PeriodicEuler1dEigen =
   pressiodemoapps::ee::impl::EigenApp1d<scalar_t, mesh_t, 0>;
@@ -39,6 +41,7 @@ using Sedov2dEigen =
 template<class scalar_t, class mesh_t>
 using Riemann2dEigen =
   pressiodemoapps::ee::impl::EigenApp2d<scalar_t, mesh_t, 2>;
+#endif
 
 }