Re: [PATCH] grep: use grep_opt->repo instead of explict repo argument

[Stefan Beller <sbeller@google.com>]

On Sun, Nov 18, 2018 at 8:38 AM Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
>
> This command is probably the first one that operates on a repository
> other than the_repository, in f9ee2fcdfa (grep: recurse in-process
> using 'struct repository' - 2017-08-02). An explicit 'struct
> repository *' was added in that commit to pass around the repository
> that we're supposed to grep from.
>
> Since 38bbc2ea39 (grep.c: remove implicit dependency on the_index -
> 2018-09-21). 'struct grep_opt *' carries in itself a repository
> parameter for grepping. We should now be able to reuse grep_opt to
> hold the submodule repo instead of a separate argument, which is just
> room for mistakes.

That makes sense. Assuming we did not make a mistake yet, the
test suite would not need changes (further assuming we do test for it,
but we do as we have explicit submodule grep tests).

>
> While at there, use the right reference instead of the_repository and
> the_index in this code. I was a bit careless in my attempt to kick
> the_repository / the_index out of library code. It's normally safe to
> just stick the_repository / the_index in bultin/ code, but it's not
> the case for grep.

Reviewed-by: Stefan Beller <sbeller@google.com>

> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>