Initial commit

.gitignore

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+build/
+*.so
+*.py[cod]
+*.egg-info

.gitmodules

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+[submodule "pybind11"]
+	path = pybind11
+	url = https://github.com/dean0x7d/pybind11.git
+	branch = cmake

CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8.12)
+project(pybind11_cmake_example)
+
+add_subdirectory(pybind11)
+
+pybind11_add_module(cmake_example src/main.cpp)

license.md

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+Copyright (c) 2016, Dean Moldovan
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

pybind11

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+Subproject commit 8c6b0b83332c8cb802391ffb08196fa4ebe1ebec

readme.md

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+## Building pybind11 modules with CMake
+
+An example of building a Python extension using [pybind11](https://github.com/pybind/pybind11) and CMake.
+This is useful for C++ codebases that already have an existing CMake-based build system.
+
+### Install
+
+1. Make sure CMake >= 2.8.12 is installed on your system
+2. Clone this repository
+3. `pip install ./pybind11_cmake_example`
+
+### Test
+
+```python
+import cmake_example
+cmake_example.add(1, 2)
+```

setup.py

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+import os
+import sys
+import platform
+import subprocess
+
+from setuptools import setup, Extension
+from setuptools.command.build_ext import build_ext
+from distutils.spawn import find_executable
+
+
+class CMakeExtension(Extension):
+    def __init__(self, name, sourcedir=''):
+        Extension.__init__(self, name, sources=[])
+        self.sourcedir = sourcedir
+
+
+class CMakeBuild(build_ext):
+    def run(self):
+        if find_executable('cmake') is None:
+            print("CMake must be installed to build this extension")
+            sys.exit(-1)
+
+        for ext in self.extensions:
+            build_dir = os.path.join(os.path.dirname(__file__), 'build', 'cmake')
+            if not os.path.exists(build_dir):
+                os.makedirs(build_dir)
+            cmake_dir = os.path.abspath(ext.sourcedir)
+
+            extpath = self.get_ext_fullpath(ext.name)
+            extfulldir = os.path.abspath(os.path.dirname(extpath))
+            cmake_args = ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extfulldir,
+                          '-DPYTHON_EXECUTABLE=' + sys.executable]
+            build_args = ['--config', 'Release']
+
+            if platform.system() == "Windows":
+                cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=' + extfulldir]
+                if sys.maxsize > 2**32:
+                    cmake_args += ['-A', 'x64']
+                build_args += ['--', '/m']
+            else:
+                build_args += ['--', '-j2']
+
+            subprocess.check_call(['cmake', cmake_dir] + cmake_args, cwd=build_dir)
+            subprocess.check_call(['cmake', '--build', '.'] + build_args, cwd=build_dir)
+
+setup(
+    name='cmake_example',
+    version='0.0.1',
+    author='Dean Moldovan',
+    author_email='dean0x7d@gmail.com',
+    description='A test project using pybind11 and CMake',
+    long_description='',
+    ext_modules=[CMakeExtension('cmake_example')],
+    cmdclass=dict(build_ext=CMakeBuild),
+    zip_safe=False,
+)

src/main.cpp

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+#include <pybind11/pybind11.h>
+namespace py = pybind11;
+
+int add(int i, int j) {
+    return i + j;
+}
+
+PYBIND11_PLUGIN(cmake_example) {
+    py::module m("cmake_example");
+
+    m.def("add", &add, "A function which adds two numbers");
+
+    return m.ptr();
+}