Upcoming fs.realPath() returns real casing of path

[bpasero]

FYI it seems that the new node.js 6 fs.realPath implementation uses a native method from lib uv and I verified that this returns the proper casing of a path on Mac and Windows!

So it seems the workaround for having to go through all parent directories to find their proper casing is no longer needed.

Refs: https://github.com/libuv/libuv/blob/v1.x/ChangeLog#L311

[weinand]

@bpasero great, thanks for letting me know!

[orangemocha]

What is your dependency on fs.realPath? We are considering some changes in core that would normalize the keys of the module loader cache (require.cache) to lowercase on Windows.

[weinand]

@orangemocha node-debug warns the user if he has specified a file path in a configuration file that doesn't uses the same character case as the file on disk.
In that case node.js breakpoints are not hit even on a case insensitive file system.
Currently we have our own implementation of fs.realPath() that walks the folder hierarchy.

[orangemocha]

Ok, it doesn't seem like the require.cache changes would affect you then.

FYI, we are also trying to restore fs.realPath old behavior when it comes to network shares mapped to drive letters: nodejs/node#7559 (comment)