Re: Resetting paths

> 
> While I worked on parts of the system that deals with the cached
> lstat() information, I needed a way to debug that, so I hacked
> ls-files -t option to show entries marked as "always matches the
> index" with lowercase tag letters.  This was primarily debugging
> aid hack.
> 
> Then I committed the whole thing with "git commit -a" by
> mistake.  In order to rewind the HEAD to pre-commit state, I can
> say "git reset --soft HEAD^", but after doing that, now I want
> to unupdate the index so that ls-files.c matches the pre-commit
> HEAD.
> 
> 
> Have people found themselves in similar need like this?  This
> could take different forms.
> 

>  * you did "git update-index" on a wrong path.  This is my
>    example and the above voodoo is a recipe for recovery.
> 
>  * you did "git add" on a wrong path and you want to remove it.
>    This is easier than the above:
> 
> 	git update-index --force-remove path
> 
>  * you did the above recovery from "git add" on a wrong path,
>    and you want to add it again.  The same voodoo would work in
>    this case as well.
> 
> 	git ls-tree HEAD path | git update-index --index-info
> 
> We could add "git reset path..." to reduce typing for the above,
> but I am wondering if it is worth it.
>