bug#47799: 28.0.50; Default `project-files' implementation doesn't work with quoted filenames

[Dmitry Gutov]

Hi Philipp,

On 15.04.2021 16:43, Philipp Stephani wrote:
> emacs -Q -batch -l project -eval '(print (project-files (quote (transient . 
> "/:/"))))'
>
> ("find: ‘/:/’: No such file or directory
> ")
>
> Note that the error message is listed as a file.
>
> 1. `project-files' should unquote local filenames before passing them to
>     `find'.
>
> 2. `project-files' should check for errors returned from `find'.

Would you like to propose a patch?

I don't really understand the file quoting feature.

Is project--files-in-directory supposed to unquote? Should 
project--vc-list-files do that as well?

Does read-directory-name return quoted names when needed? Can 
locate-dominating-file return one?