bug#61449: 30.0.50; diff-hl-dired: Consider adding a cookie to diff-hl-dired overlay

[Dmitry Gutov <dgutov@yandex.ru>]

Hi again!

On 13/02/2023 13:19, Ramesh Nedunchezian wrote:
> - `diff-hl-dired-cookie` :: This is added by me, and contains the vc
>    state.
> - `diff-hl` :: This is added by `diff-hl-dired`, and `t` isn't much
>    useful for the task I have hand.
> - `before-string` :: This is added by `diff-hl-dired`, and the vc
>    state is avaiable as a face property.
> 
>    If I have to get to that property, this is the kind of manoeuvre I
>    need to do
> 
>      (->> x
>           (memq 'before-string)
>           cadr
>           (get-text-property 0 'display)
>           car
>           (-filter 'facep)
>           car)
> 
> If you add a cookie, I can do whatever with it.
> 
> Mind you ... I am not saying the relevant information is /not/ there;
> I am only saying that it is buried too deep, and not readily accessible.

Thank you for the extra clarification.

I've added a new overlay property 'diff-hl-dired-type' in 
https://github.com/dgutov/diff-hl/commit/d20f16bf5eadd66e775f215e800f25caddae8cb5.

It the same as you asked, I think, except with a different name.

Due to the version bump, it should be out soon in diff-hl 1.9.2.