Editable installs now respect the value of wheel.install-dir

[psalvaggio]

Attempting to fix: #866

I'm passing down wheel.install-dir to the editable redirect script and appending it to DIR so that rebuilds happen in the correct path. This worked for me in a local testing environment, but I'm not familiar with this codebase, so I don't know if this is an optimal solution.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 83.98%. Comparing base (8cbd92f) to head (ff924db).
Report is 40 commits behind head on main.

Files with missing lines	Patch %	Lines
src/scikit_build_core/build/wheel.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #867      +/-   ##
==========================================
+ Coverage   83.91%   83.98%   +0.07%     
==========================================
  Files          74       74              
  Lines        4363     4372       +9     
==========================================
+ Hits         3661     3672      +11     
+ Misses        702      700       -2     

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[LecrisUT]

Looks great, thanks for the effort. Just some minor comments. I was looking a bit on if we have a relevant place to slot in the tests for this, but I couldn't find much, so I will help write the tests later.

[henryiii]

FYI,

scikit-build-core/src/scikit_build_core/settings/skbuild_model.py

Line 170 in 8cbd92f

install_dir: str = ""

can't be None, I think you are introducing a None with the or.

Edit: this was written yesterday, I think you already fixed it.

[psalvaggio]

Thanks for the help in adding that error check and a test!

[henryiii]

Thanks for working on this! After I finish debugging pypa/cibuildwheel#1975, I'll probably try to make a release.