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I have a few C++ extensions for a python library.

Previously, this library was shipped using setup.py and one could recompile via python setup.py build_ext --inplace if only the C++ files changed.

Since I had to change the build system to manage more complex dependencies, I switched over to pyproject.toml + scicit-build-core + CMake.

Unfortunately I cannot find any way of how to recompile the changed files in this new setup. At the moment I have to always call pip install . which goes through the whole python dependency management and compiles everything.

TLDR: What is the equivalent of make in this setup?

pip install --no-deps . gets rid of the python dependencies part, but it still recompiles all cpp files, even if they were not changed.

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    I'm not too famaliar with your build system, but --no-deps flag should do what you want. ie, pip install --no-deps .. It will compile everything in your library, but won't bother installing any of your libraries dependencies. Commented Jun 29 at 12:48
  • Thanks for the suggestion. I updated the question, because --no-deps only solves part of the problem. Commented Jun 30 at 14:47
  • There are many build back-ends (non-exhaustive list), find the one that works for you. There is no definitive answer to your question. Commented Jun 30 at 18:37

1 Answer 1

Reset to default
2

Option 1:

  1. Create a build directory:
    mkdir -p build && cd build

  2. Configure CMake once:

    cmake .. -DCMAKE_BUILD_TYPE=Debug

  3. Build incrementally:

    cmake --build . --config Debug -j$(nproc)

  4. Install locally (without reinstalling via pip):

    cmake --install . --prefix ../install

    Option 2:
    1. Install the CLI tool:
    pip install scikit-build-core[pyproject]
    2. Run an in-place build:
    python -m scikit_build_core.build --wheel --no-isolation

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1 Comment

Option 2 throws an error, but option 1 works. Thank you!

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