Question: Can I use carthage as a dependency?

[mitsuse]

Hi,

I'm creating the formula for a tool written in Swift. Can I use carthage as a dependency in formula? If it is unavailable, I want to know the reason.

The tools depends on carthage in build time. More specifically, the formula executes carthage bootstrap to checkout dependencies and build them. Some formulae for tools in Swift exist, but they aren't using carthage in build time. So there is no example about carthage as a dependency.

In a pull-request (but it was not merged), the formula depends on carthage, but was commented as follow:

Instead of using carthage checkout this should explicitly stage any needed dependencies into buildpath as resources; v8.rb gives an example.

Thanks.

[MikeMcQuaid]

You can use it as the dependency but Carthage should not be the tool that does the checkout as we cannot cache in that case.