xeus-cookiecutter

Overview

This cookiecutter can be used to generate xeus-based Jupyter kernels. This cookiecutter has been used to generate xeus-lua and xeus-wren.

Features

• Unit Tests:

  • Kernel is tested via jupyter-kernel-tests.

• Continuous Integration with Github Actions:

  • Tests run on ubuntu, mac, win and emscripten
  • Fast installation of dependencies via micromamba

• Documentation:

  • Ready to use sphinx-based included.
  • Compatible to run on readthedocs.

• Modern CMake

• WASM build:

  • Includes a wasm target which can be used to build a jupyterlite-kernel for your kernel similar to jupyterlite xeus-lua.

Usage

Install the cookiecutter package with conda

conda install cookiecutter -c conda-forge

or pip

python -m pip install cookiecutter

Once cookiecutter is available on your system, run the xeus-cookiecutter:

cookiecutter https://github.com/jupyter-xeus/xeus-cookiecutter

Conda-Forge

To release your kernel on conda-forge, you create a conda forge recipe. Examples for conda forge recipes for xeus-based kernels can be found here.

• https://github.com/conda-forge/xeus-lua-feedstock/
• https://github.com/conda-forge/xeus-wren-feedstock/
• https://github.com/conda-forge/xeus-python-feedstock/

Cookiecutter Variables Explanation

Variables

Variables Name	Default Value	Meaning
full_name	John Doe	Name of the author. Used in copyright sections.
email	john@doe.de	Email of the author.
github_user_name	JohnDoe	Github user / organization name
language	mylang	name of your language. Ie "lua", "R", "python", etc.
language_mimetype	text/x-mylangrc	Mimetype of the programing language. Used in the kernel.json file.
language_file_extension	mylang	File extension of the programing language. Used in the kernel.json file.
language_version	1.0.0	Version of the language. Used in the kernel.json file.
with_wasm	no	Include code to build your kernel for wasm with emscripten. Not every kernel / language can be compiled to wasm code.
with_debugger	no	Include code for the debugger to support the debugger protocol. This is only a placeholder for future releases. Atm this option is only used in the kernel.json file.
project_name	xeus-mylang	The name of the project. This is used everywhere.
kernel_name	xmylang	The name of the kernel itself.
package_name	xeus-mylang	The name of the package.
library_name	xeus-mylang	The name of the shared/static library.
binary_name	xmylang	Name of ther binary.
conda_package_name	xeus-mylang	The name of the conda package for this package. This is used in the environment.yml which is used for mybinder support. This only becomes useful once the package is released on conda-forge (this has to be done by hand).
cmake_package_name	xeus-mylang	Name of the cmake package
readthedocs_package_name	xeus-mylang	Name of the package on readthedocs. (The package has to be activated on readthedocs by hand).
github_project_name	xeus-mylang	The name of the root folder / the name of the project on github
branch_name	main	The default branch name
cpp_root_folder	xeus-mylang	The name of the C++ root include folder.
config_file_name	xeus_mylang_config	Name of the *.hpp config file in the include folder.
cpp_namespace	xeus_mylang	Name of the C++ namespace used for this project.
cpp_macro_prefix	XEUS_MYLANG	Prefix for macros used in C++ for this project.
cmake_var_prefix	XEUS_MYLANG	Prefix for CMake variables used in CMake for this project.
cpp_standard	17	Which C++ standard shall be used. At the moment one can choose between 14 and 17.
open_source_license	BSD 3-Clause License	Which license shall be attached to your project.