'tuist cache' fails when there are targets without sources

[voidless]

What problem or need do you have?

'tuist cache' fails when there are targets without sources that return non zero result

I use .macos targets in my iOS project for supplementary tools (eg: swiftlint, periphery) because tuist doesn't support aggregate targets #3388
So when I run tuist cache it tries to build them too and fails (it also runs very slowly for some of them, and they don't produce a cacheable result)
This forces me to provide a list of all normal iOS targets if I want to cache them all

Potential solution

1. Introduce --platform param to tuist cache (eg: tuist cache --platform iOS)
2. Only cache targets that have source code files

macOS version

14.4.1

Tuist version

4.13.0

Xcode version

15.3.0

[pepicrft]

Hi @voidless 👋🏼
Would you mind including a small project where we can reproduce the issue? We can then use that as a fixture to prevent regressions in the future.

[voidless]

Sure, here is a minimal project with the issue: https://github.com/voidless/tuist_cache_issue

[pepicrft]

Thanks @voidless. We'll try to prioritize it.

[pepicrft]

I slept over this one, and I propose that we tackle this issue over adding the functionality described in this issue because having to have targets with no sources is a solution for a limitation that's becoming a problem on its own (this reminds me of JavaScript 😝). So, I'll close this one to continue discussing that other issue. We won't need something like this once we have support for aggregate targets because cache will only compile targets with sources.