Re: [PATCH] ls-files.c: add --only-object-name option

>
>
> On Mon, Jun 06 2022, ZheNing Hu via GitGitGadget wrote:
>
> > From: ZheNing Hu <adlternative@gmail.com>
> >
> > `git ls-files --stage` default output format is:
> >
> > [<tag> ]<mode> <object> <stage> <file>
> >
> > sometime we want to find a path's corresponding objectname,
> > we will parse the output and extract objectname from it
> > again and again.
> >
> > So introduce a new option `--only-object-name` which can only
> > output objectname when giving `--stage` or `--resolve-undo`.
> >
> > Signed-off-by: ZheNing Hu <adlternative@gmail.com>
> > ---
> >     ls-files.c: add --only-object-name option
> >
> >     Something we want to extract objectname from git ls-files --stage, but
> >     git ls-file don't support something like --format=%(objectname) (which
> >     git ls-tree have implemented)
> >
> >     So now add a new option --only-object-name which can only output
> >     objectname.
> >
> >     (Maybe we should add something like git ls-files --format ?)
>
> Yes I think that would be very useful, especially if we could see if
> some of the code could be shared (maybe not).
>

> > +check_resolve_undo_only_object_name() {
> > +     msg=$1
> > +     shift
> > +     while case $# in
> > +     0)      break ;;
> > +     1|2|3)  die "Bug in check-resolve-undo test" ;;
>
> Use the "BUG"  helper in thaht case.
> > +     esac
> > +     do
> > +             path=$1
> > +             shift
> > +             for stage in 1 2 3
> > +             do
> > +                     sha1=$1
> > +                     shift
> > +                     case "$sha1" in
> > +                     '') continue ;;
> > +                     esac
> > +                     sha1=$(git rev-parse --verify "$sha1")
>
> missing && here when invoking "git".
>