Support Pathnames in $LOAD_PATH

[glacials]

This allows $LOAD_PATH to contain Pathname objects in addition to strings. Previously Pathnames would break any attempt to precompile assets because of an undefined match method.

[kou]

Your suggestion is reasonable but we should use #to_path instead of #to_s for the case.
Could you fix it?

[glacials]

We can't call to_path on strings, so we'd need to have a condition to check for Pathnames and call to_path on them while letting strings through normally.

This would be fine if to_path were more appropriate than to_s, but they're literally the exact same method, so there would be no advantage to using to_path here (any gained semantic clarity would be fogged up by the additional type check imo).

That said, I can still change this if you'd like me to.

[kou]

In your use case, I agree with using #to_path is no advantage. Because you just need to care about String and Pathname.

But gettext gem is a library that is used by more users. They may put a path object that responds to #to_path to $LOAD_PATH. For example, we can put Dir object to $LOAD_PATH. Because Dir#to_path exists.

Because of the above reason, I prefer to use #to_path rather than #to_s.

It is better that using path.respond_to?(:to_path) rather than path.is_a?(Pathname) for checking whether we should call #to_path or not.

If you agree with my opinion, could you use #to_path?

[glacials]

That's a really good point! I hadn't thought of that. Here's the change.

[kou]

Thanks!!!
I've merged your pull request. :-)