Add option to "flatten" when recursing

[devmattrick]

It'd be great to have some sort of way to "flatten" a requireDir call so all modules are on the same level. I imagine either adding a flatten option or allowing users to specify recurse: 'flatten' in the options object.

[stephenlacy]

This would have an undesirable effect if two directories have the same name in a nested structure

test
├── one
│   └── two
└── two
    └── two

Would be flattened to:

test: {
  one: fn,
  two: fn
}

Thus omitting two entire folders. The only other option is to convert to an array, that would have an entire different API and use case.

[devmattrick]

Perhaps there can be namespacing such as one/two/module.js?

[yocontra]

You can do this with userland modules like lodash, don't think its something we want to support with an option.