bug#28483: [PATCH] Fix copy-directory creating missing directory

[Aaron Jensen]

On September 17, 2017 at 12:48:54 PM, Philipp Stephani
(p.stephani2@gmail.com(mailto:p.stephani2@gmail.com)) wrote:

> This would reintroduce the security hole that 
> e22794867d878d53675fcc91d2ef1ad2494a2ff2 fixed.

Indeed, sorry about that. I’m attempting to patch the downstream
library that led me to this issue:
https://github.com/syl20bnr/spacemacs/pull/9600

> Paul, maybe you want to add some comments to the places where you introduced 
> `directory-name-p' so that people don't attempt to revert these changes?

I’m not sure what Emac’s principles are on it, but perhaps an error
pointing to this change when attempting to copy to a non-existing
directory would help people in the future as well since this is a
change in behavior to an existing function w/o a deprecation.

Thanks,

Aaron