Update .gitignore to remove *.cmake

[ianhbell]

I am building a package that includes geos as a dependency, with compilation targeting Python, and builds happening with scikit-build-core. I had a mysterious build failure for missing files in the cmake folder inside the build folder when built with pipx run build, and tracked down the problem to the fact that the build runs a git clean and doesn't copy over files that are ignored by .gitignore. Fixing that (as in this PR), allowed that part of the build to work properly. I think this change is harmless since there are already .cmake files in the repo so they should probably not be in the .gitignore anyhow.

[dbaston]

I think this change is harmless since there are already .cmake files in the repo so they should probably not be in the .gitignore anyhow.

I see this was initially added in dd1be73 to support in-tree builds. I'm OK with the proposed change - I feel like the expectation is that if you do an in-tree build, you're going to end up with bunch of garbage in your tree, and the solution is to not build in your tree.

[ianhbell]

I think this change is harmless since there are already .cmake files in the repo so they should probably not be in the .gitignore anyhow.

I see this was initially added in dd1be73 to support in-tree builds. I'm OK with the proposed change - I feel like the expectation is that if you do an in-tree build, you're going to end up with bunch of garbage in your tree, and the solution is to not build in your tree.

Yeah, out-of-source is just so much cleaner, thanks for the context

[mwtoews]

Thanks @dbaston for the context of the change. In-source builds are not a normal method of building, so this item shouldn't be here. For reference, recommended .gitignore items for CMake projects is here.

And thanks again @ianhbell for the helpful PR!