578c935bcf
We're seeing type errors when building formulae that use something like `xcodebuild ..., "-arch", Hardware::CPU.arch`, since `CPU.arch` is a symbol. We've been addressing these issues by calling `#to_s` on the value but there was some talk about simply expanding the type signatures to accommodate anything that will be cast to a `String`. There's maybe still an argument to be made for doing string conversion in formulae but expanding the type signatures will resolve a number of existing type errors if we simply want to rely on implicit type casting. Past that, this also updates the type signature for `BuildError` to align with the `#system` signature changes, as we receive a type error otherwise.
Library
This directory contains all the code run by the official brew command in Homebrew and all formulae (package descriptions) in taps (repositories containing formulae) in Taps subdirectories.