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feat(template): Added pybind11 as an option for build system #163

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merged 34 commits into from
Aug 9, 2023

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ayeankit
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@ayeankit ayeankit commented Aug 3, 2023

Pull Request description

Fixes #70

  1. Activate option in TUI to pybind11
  2. Adding documentation about pybind11
  3. Adding pybind11 as a build-system:
  4. Creating a pybind11-pyproject.toml
  5. Created cmake file for pybind11.
  6. Editing post_gen_project.py
  7. Creating a smoke test (build-system.sh)
  8. Editing cookicutter.json
  9. Added pybind11 in Readme.md

How to test these changes

  • ...

Pull Request checklists

This PR is a:

  • bug-fix
  • new feature
  • maintenance

About this PR:

  • it includes tests.
  • the tests are executed on CI.
  • the tests generate log file(s) (path).
  • pre-commit hooks were executed locally.
  • this PR requires a project documentation update.

Author's checklist:

  • I have reviewed the changes and it contains no misspelling.
  • The code is well commented, especially in the parts that contain more complexity.
  • New and old tests passed locally.

Additional information

Reviewer's checklist

Copy and paste this template for your review's note:

## Reviewer's Checklist

- [ ] I managed to reproduce the problem locally from the `main` branch
- [ ] I managed to test the new changes locally
- [ ] I confirm that the issues mentioned were fixed/resolved .

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I am not super familiar with pybind11
but maybe it would be necessary to have an extra setup.py file
ref: https://github.com/pybind/python_example/blob/master/setup.py

@@ -4,6 +4,6 @@ namespace py = pybind11;

PYBIND11_MODULE(skcdemo, m) {
m.def("hello", [](){
py::print("Hello, scikit-build-core!");
py::print("Hello !!!");
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maybe you should change the name of the file to something more generic than skcdemo
maybe example.cpp ... or as it uses pybind11 .. maybe pybind11.cpp ..

@@ -55,6 +55,14 @@ elif command -v maturin &> /dev/null; then
pip install -e .
elif [ "$(pip list|grep -c scikit_build_core)" -ne "0" ]; then
pip install -e .
elif [ "$(pip list|grep -c pybind11)" -ne "0" ]; then
# Assuming you are inside the root of the CMake source directory
mkdir build
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ideally you should run just pip install -e . and it should run cmake under the hook

Discussions = "{{ cookiecutter.project_url }}/discussions"
Changelog = "{{ cookiecutter.project_url }}/releases"

[tool.hatch.version]
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I don't think it needs hatch session here

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Great work, thanks, @ayeankit! Some comments below -

docs/guide.md Outdated
@@ -334,7 +334,21 @@ packages. SciCookie support the following:
build requirements. With its capabilities, it facilitates cross-platform
builds using CMake and effortless integration with C/C++ libraries, making
it a valuable asset for research software engineers.


- [**Pybind11**](https://pybind11.readthedocs.io/en/stable/): It's build system designed
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Should we call it something like setuptools + pybind11 to be more clear, given that pybind11 itself is not a backend?

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Or atleast using "setuptools + pybind11" in all the user-facing locations, and just "pybind11" in the internals of scicookie.

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Or atleast using "setuptools + pybind11" in all the user-facing locations, and just "pybind11" in the internals of scicookie.

that makes sense to me.

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@ayeankit ayeankit Aug 4, 2023

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Or atleast using "setuptools + pybind11" in all the user-facing locations, and just "pybind11" in the internals of scicookie.

that makes sense to me.

Wouldn't that be confusing since we are using setuptools as default build-sytem?

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not really ... setuptools is the default option because it was the first one historically, but a lot of people want to kill that. That is why a bunch of project are looking for new alternatives.
but for c/c++ code setuptools is still a great option.
so specifying setuptools + pybind11 makes a lot of sense, because it is clear about its structure.


install(TARGETS pybind11 DESTINATION .)

{%- endif %}
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Suggested change
{%- endif %}
{%- endif %}

m.def("hello", [](){
py::print("Hello, pybind11!");
});
}
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Suggested change
}
}

Comment on lines 7 to 16
name="OSL Python package",
author="{{cookiecutter.author_full_name}}",
author_email="{{cookiecutter.author_email}}",
url="https://{{ cookiecutter.project_slug }}.com",
description="A test project using pybind11",
long_description="",
#extras_require={"test": "pytest"},
# Currently, build_ext only provides an optional "highest supported C++
# level" feature, but in the future it may provide more features.
python_requires=">=3.7",
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@xmnlab xmnlab changed the title Feat(template): Added pybind11 as an option for build system feat(template): Added pybind11 as an option for build system Aug 4, 2023
@@ -1,3 +1,4 @@
{% if cookiecutter.build_system == "scikit-build-core" -%}
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where are you declaring this variable? SKBUILD_PROJECT_NAME

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it doesn't look correct to resuse the name sk... for both build system
also the first two lines seem to be duplicated .. probably you could move it to some first lines in order to reuse that for both build system


namespace py = pybind11;

PYBIND11_MODULE(skcdemo, m) {
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skcdemo can be called maybe pybinddemo?

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Some comments below that might push you in the right direction for fixing the CI error 🙂

@@ -115,6 +115,9 @@ build:
hatch build
{%- elif cookiecutter.build_system == "maturin" %}
maturin build
{%- elif cookiecutter.build_system == "pybind11" %}
pybind11 build
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Are you sure this command exists?

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I think you can use something like python3 -m build https://packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/#packaging-your-project

ensure you have build as a dependency in pyproject.toml/build-system


find_package(pybind11 CONFIG REQUIRED)

pybind11_add_module(_core MODULE src/main.cpp)
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I think the src should not be here? Or it should be src/<package_name>/main.cpp?

@@ -0,0 +1,121 @@
[build-system]
requires = ["setuptools>=42", "wheel", "pybind11~=2.6.1"]
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IIRC, editable install with pyproject.toml support was first supported with setuptools version 65. Could you please check and confirm?

@@ -0,0 +1,23 @@
from __future__ import annotations
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We are not adding type annotations anywhere in this file. What purpose is this import serving then?

@@ -55,6 +55,9 @@ elif command -v maturin &> /dev/null; then
pip install -e .
elif [ "$(pip list|grep -c scikit_build_core)" -ne "0" ]; then
pip install -e .
elif [ "$(pip list|grep -c pybind11)" -ne "0" ]; then
# Assuming you are inside the root of the CMake source directory
pip install -e .
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Yes! This -e would not work with pyproject.toml and setuptools<65, IIRC.

ext_modules = [
Pybind11Extension(
"{{ cookiecutter.project_slug }}._core",
["src/main.cpp"],
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You should take a look at the path here again.

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this is an interesting discussion .. but I think we can have this discussion after we merge this PR
I am also checking this discussion with Leah (pyOpenSci) to see if there is already something recommended by pyOpenSci

@@ -55,6 +55,9 @@ elif command -v maturin &> /dev/null; then
pip install -e .
elif [ "$(pip list|grep -c scikit_build_core)" -ne "0" ]; then
pip install -e .
elif [ "$(pip list|grep -c pybind11)" -ne "0" ]; then
# Assuming you are inside the root of the CMake source directory
pip install .
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This should still be -e

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in my last PR I removed -e from everywhere, so we will be sure to test the package correctly (as much as possible). my main concern is about testing this extension files .. so we would ensure to test if that is in the package .. maybe the test is not good enough yet ... but at least it is a first step

src/scicookie/{{cookiecutter.project_slug}}/Makefile Outdated Show resolved Hide resolved
Comment on lines +310 to +311
build_system_dir = PROJECT_DIRECTORY / "build-system"
src_system_dir = PROJECT_DIRECTORY/ "src"
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I think PROJECT_DIRECTORY automatically checks for flat or src layout?

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I think it for main.cpp which should be in src directory like this.
your_project/
|-- setup.py
|-- pyproject.toml
|-- src/
| |-- main.cpp
| |-- other_cpp_files.cpp
| |-- your_module_name_here.cpp
| |-- your_module_name_here.h
|-- your_package/
| |-- init.py
| |-- your_module_name_here.py
|-- tests/
| |-- test_your_module_name_here.py
|-- README.md
|-- LICENSE

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this is an interesting discussion ... maybe we can return to this discussion to check how we should proceed not just for this build-system but maybe for all build-systems.
also maybe in our repo, maybe we could have this files in folders called by the programming language (cpp, rust, etc)

@ayeankit
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ayeankit commented Aug 9, 2023

Hey @xmnlab , All test cases passed !!, I have changed pybind11 to setuptools + pybind11 in user-facing locations as suggested by Saransh. Can you please review PR?

tests/smoke/base.sh Outdated Show resolved Hide resolved
Co-authored-by: Ivan Ogasawara <[email protected]>
@@ -115,6 +115,9 @@ build:
hatch build
{%- elif cookiecutter.build_system == "maturin" %}
maturin build
{%- elif cookiecutter.build_system == "pybind11" %}
python -m pip install build
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you are installing build here, but it is already defined by pyproject in the build section: https://github.com/osl-incubator/scicookie/pull/163/files#diff-ffc1694c12f08f07de37e5816475fd014df381d8fc20a600597559c8072b61fdR2

this step here is to build the package, not to install a dependency for building

@Saransh-cpp and I already told you what the command you should try here
because in another words, you are not doing what it should do, it should create a package in this step

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thanks for working on that @Saransh-cpp
the only missing point (in my opinion) is this issue: https://github.com/osl-incubator/scicookie/pull/163/files#r1289103642

@ayeankit
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ayeankit commented Aug 9, 2023

hey @xmnlab , I did the required changes, and added "build>=0.10.0", in dependency in pyproject.toml for pybind11. Can you please review it again?

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thanks for working on that @ayeankit !

lgtm!

the only thing that is not working well is the version, as you can see in the logs:

creating osl-python-package-0.0.0
creating osl-python-package-0.0.0/src
creating osl-python-package-0.0.0/src/osl_python_package
creating osl-python-package-0.0.0/src/osl_python_package.egg-info
creating osl-python-package-0.0.0/tests
copying files to osl-python-package-0.0.0...
copying LICENSE -> osl-python-package-0.0.0
copying README.md -> osl-python-package-0.0.0
copying pyproject.toml -> osl-python-package-0.0.0
copying setup.py -> osl-python-package-0.0.0
copying src/main.cpp -> osl-python-package-0.0.0/src
copying src/osl_python_package/__init__.py -> osl-python-package-0.0.0/src/osl_python_package
copying src/osl_python_package/osl_python_package.py -> osl-python-package-0.0.0/src/osl_python_package
copying src/osl_python_package.egg-info/PKG-INFO -> osl-python-package-0.0.0/src/osl_python_package.egg-info
copying src/osl_python_package.egg-info/SOURCES.txt -> osl-python-package-0.0.0/src/osl_python_package.egg-info
copying src/osl_python_package.egg-info/dependency_links.txt -> osl-python-package-0.0.0/src/osl_python_package.egg-info
copying src/osl_python_package.egg-info/requires.txt -> osl-python-package-0.0.0/src/osl_python_package.egg-info
copying src/osl_python_package.egg-info/top_level.txt -> osl-python-package-0.0.0/src/osl_python_package.egg-info
copying tests/test_osl_python_package.py -> osl-python-package-0.0.0/tests

but we can address this issue in a follow-up.

@xmnlab xmnlab merged commit b3d59cd into osl-incubator:main Aug 9, 2023
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Add support for pybind11 build-system (setuptools + pybind11)
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