CMake builds seem properly integrated, sub and derivative are working…

…, need to get wheels built

CMakeLists.txt

@@ -77,6 +77,7 @@ endif()
 ### First check if the compiler supports C++11 or C++0x and enable the build flag
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 
 ######################################################################
 ########## HEADER DIRECTORIES
@@ -125,6 +126,44 @@ stator_test(symbolic_ad_test)
 ######################################################################
 ########## PYTHON INTERFACE
 ######################################################################
+
+# Build a Python extension module using pybind11
+#   pybindings_add_module(<module>)
+# Here <module> should be the fully qualified name for the module,
+# e.g. pybindings_add_module(foo.bar._baz)
+# <module> becomes the target name in case you wish to do something to it later
+# The source for the binding *must* be placed in src/pybindings/{relpath}/py{name}.cc
+# E.g. for module=foo.bar._baz -> src/pybindings/bar/py_baz.cc
+function(pybindings_add_module module)
+    set(target_name ${module})
+    string(REPLACE "." "/" modpath ${module})
+    string(REPLACE "." ";" modlist ${module})
+
+    # The module name is the last entry
+    list(GET modlist -1 modname)
+
+    # Remove everything that is not the root or the module name
+    #list(REMOVE_AT modlist 0)
+    list(REMOVE_AT modlist -1)
+
+    # Get the relative path
+    if(modlist)
+        string(REPLACE ";" "/" relpath "${modlist}")
+    else()
+        set(relpath "")
+    endif()
+
+    # Define the binding source file
+    set(sources pysrc/${relpath}/${modname}.cpp)
+
+    # Invoke pybind11 and set where the library should go, and what it is called
+    pybind11_add_module(${target_name} ${sources})
+    set(outdir ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${relpath})
+    set_target_properties(${target_name} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${outdir})
+    set_target_properties(${target_name} PROPERTIES OUTPUT_NAME ${modname})
+endfunction()
+
 add_subdirectory(extern/pybind11)
-pybind11_add_module(core pysrc/stator/core.cpp)
-target_include_directories(core PRIVATE ${PROJECT_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
+pybindings_add_module(stator.core)
+

build-wheels.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+DOCKER_IMAGE=quay.io/pypa/manylinux2014_x86_64
+PLAT=manylinux2014_x86_64
+docker run --rm -e PLAT=$PLAT -v `pwd`:/io $DOCKER_IMAGE $PRE_CMD /io/scripts/manylinux_entrypoint.sh
+ls wheelhouse/

pyproject.toml

@@ -3,6 +3,7 @@ requires = [
     "setuptools>=42",
     "wheel",
     "pybind11>=2.6.0",
+    "cmake>=3.13",
 ]
 
 build-backend = "setuptools.build_meta"

pysrc/stator/core.cpp

@@ -31,7 +31,7 @@ PYBIND11_MODULE(core, m)
 
   m.def("derivative", static_cast<sym::Expr (*)(const sym::Expr&, const sym::Expr&)>(&sym::derivative));
   m.def("simplify", static_cast<sym::Expr (*)(const sym::Expr&)>(&sym::simplify));
-  m.def("subs", static_cast<sym::Expr (*)(const sym::Expr&)>(&sym::simplify));
+  //m.def("sub", static_cast<sym::Expr (*)(const sym::Expr&, const sym::Expr&)>(&sym::sub));
 
   py::implicitly_convertible<int, sym::Expr>();
   py::implicitly_convertible<double, sym::Expr>();

scripts/manylinux_entrypoint.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+set -e -u -x
+
+function repair_wheel {
+    wheel="$1"
+    if ! auditwheel show "$wheel"; then
+        echo "Skipping non-platform wheel $wheel"
+    else
+        auditwheel repair "$wheel" --plat "$PLAT" -w /io/wheelhouse/
+    fi
+}
+
+
+# Install a system package required by our library
+yum install -y gtest-devel 
+
+# Compile wheels
+ls /opt/python/
+mkdir -p /io/wheelhouse
+for VER in cp39-cp39; do #cp36-cp36m cp37-cp37m cp38-cp38 
+    PYBIN=/opt/python/$VER/bin
+    "${PYBIN}/pip" install -r /io/dev-requirements.txt
+    "${PYBIN}/pip" wheel /io/ --no-deps -w /io/wheelhouse/
+done
+
+# Bundle external shared libraries into the wheels
+for whl in /io/wheelhouse/*.whl; do
+    #auditwheel repair "$whl"
+    repair_wheel "$whl"
+done
+
+# Install packages and test
+for VER in cp39-cp39; do #cp36-cp36m cp37-cp37m cp38-cp38 
+    PYBIN=/opt/python/$VER/bin
+    "${PYBIN}/pip" install stator --no-index -f /io/wheelhouse
+    #(cd "$HOME"; "${PYBIN}/nosetests" pymanylinuxdemo)
+done