fix: support --no-isolation with build[uv]

[henryiii]

Fixing #1887. I didn't special case chained short flags, like -xn or -nx, maybe we should?

[joerick]

It looks to me like you're just disabling uv support when --no-isolation is passed. Is this a misconfiguration then? As in "you can't specify build[uv] and --no-isolation, if you need --no-isolation you must use build"?

[henryiii]

We still install everything via uv when build[uv] is set. It means “use build and uv”. The problem is that with no isolation, build itself isn’t using uv because it doesn’t install anything or make and environment. That’s why it errors on that flag.

[joerick]

Ah, got it. Understood!

[henryiii]

If I add a utility for this, it will clash with #1873, so let's do this as a quick fix, and then write a utility later that tries to be smarter for combined flags.

[henryiii]

I think we could release after this. Would like to get b3 out!

[mayeut]

I didn't special case chained short flags, like -xn or -nx, maybe we should?

I don't think it's necessary but a note / caution shall be added in the docs then.

[mayeut]

I think we could release after this. Would like to get b3 out!

I cancelled Travis CI to get some time for manylinux. CentOS 7 reached End-Of-Life so mirrors shall be updated on manylinux2014. IMHO, we should wait for the new images before the release.