bug#12357: 24.2; list-load-path-shadow should ignore .dir-locals.el

[Johan Claesson]

I did not think about that kind of shadowing.  I agree that would also
be nice to have reported.  But i think it is a different thing.  Also
it could be that the user wants the lower dir-locals file to shadow the
higher one.  But i guess no user wants one lisp file to shadow another
in the load-path.  

Maybe a separate command could search for dir-local files shadowing
other dir-local files for a given directory or list of directories.
(I could submit such a function.)

I usually run list-load-path-shadows in the same go as compiling my
elisp directory and just like it is nice to have no compiler warnings it
is nice to have no shadow warnings.

Regards,

/Johan


Glenn Morris <rgm@gnu.org> writes:

> Johan Claesson wrote:
>
>> A minor suggestion for shadow.el.  list-load-path-shadows will detect
>> if there are two lisp files with the same name in the load-path.  Such
>> a clash could cause problems for normal lisp files.  But i think it is
>> normal to have multiple .dir-locals.el files spread across the
>> load-path.  In order to avoid false warnings list-load-path-shadows
>> could ignore the special file name .dir-locals.el.
>
> I think you are right, but if any one given directory has more than one
> dir-locals file above it in the directory tree, then the "lowest" one
> does indeed shadow all the "higher" ones. So it might be good to still
> report such cases?