Initialize project with scikit-build

Author: zhanpon

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15...3.19)
+
+project(ngtpy VERSION "0.1.0")
+
+if(SKBUILD)
+  # Scikit-Build does not add your site-packages to the search path
+  # automatically, so we need to add it _or_ the pybind11 specific directory
+  # here.
+  execute_process(
+    COMMAND "${PYTHON_EXECUTABLE}" -c
+            "import pybind11; print(pybind11.get_cmake_dir())"
+    OUTPUT_VARIABLE _tmp_dir
+    OUTPUT_STRIP_TRAILING_WHITESPACE COMMAND_ECHO STDOUT)
+  list(APPEND CMAKE_PREFIX_PATH "${_tmp_dir}")
+endif()
+
+
+add_subdirectory(extern/NGT EXCLUDE_FROM_ALL)
+
+find_package(pybind11 CONFIG REQUIRED)
+pybind11_add_module(_ngtpy MODULE src/ngtpy/_ngtpy.cpp)
+
+find_package(OpenMP REQUIRED)
+target_link_libraries(_ngtpy PUBLIC OpenMP::OpenMP_CXX)
+
+target_link_libraries(_ngtpy PUBLIC ngtstatic)
+target_include_directories(_ngtpy PUBLIC extern/NGT/lib PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/extern/NGT/lib)
+
+install(TARGETS _ngtpy DESTINATION .)

MANIFEST.in

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+include LICENSE README.md pyproject.toml setup.py CMakeLists.txt
+recursive-include src *
+recursive-include extern/NGT *

pyproject.toml

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+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel",
+    "pybind11>=2.9.0",
+    "cmake>=3.22",
+    "scikit-build>=0.13",
+]
+
+build-backend = "setuptools.build_meta"
+
+[tool.isort]
+profile = "black"

setup.py

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+import sys
+
+try:
+    from skbuild import setup
+except ImportError:
+    print(
+        "Please update pip, you need pip 10 or greater,\n"
+        " or you need to install the PEP 518 requirements in pyproject.toml yourself",
+        file=sys.stderr,
+    )
+    raise
+
+from setuptools import find_packages
+
+setup(
+    name="ngtpy",
+    version="0.1.0",
+    description="ngt python",
+    author="Yahoo! JAPAN research",
+    packages=find_packages(where="src"),
+    package_dir={"": "src"},
+    cmake_install_dir="src/ngtpy",
+    include_package_data=True,
+    extras_require={"test": ["pytest"]},
+    python_requires=">=3.7",
+    install_requires=["numpy"],
+)

src/ngtpy/__init__.py

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+from ._ngtpy import *