Conda based development: rebuild instructions

[Nils Bruin]

I tried a conda-based install because I wanted to try some development on a machine with questionable rerequisites. Indeed, conda provided all prereqs very smoothly. On

https://doc.sagemath.org/html/en/installation/conda.html

the use of pip is advertised as superior to "make" and it has the following advice: After editing any Cython files, rebuild the Sage library using:

$ pip install --no-build-isolation --config-settings editable_mode=compat -v -v --editable src

with a tiny change to a file that didn't change any signatures, this triggered what looked to me like a full rebuild of the library. I don't think that's a reasonable alternative to make. I don't mind a pip-based work flow, but it needs better tools to figure out a minimal recompile.

[Dima Pasechnik]

A meson build should be able to do a minimal rebuild. It's hard to figure out what went wrong without a reasonable log.

(I can say that I do see very quick rebuilds on a non-conda setup using meson build of Sage)

Dima

 

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[Tobia...@gmx.de]

The docs for conda are outdated (there is already a PR in the pipeline fixing this). Please use meson following https://doc.sagemath.org/html/en/installation/meson.html