Re: [PATCH v4 0/3] diff: add pathspec support to --no-index

> From: Jacob Keller <jacob.keller@gmail.com>
>
> This series adds support for using pathspecs to limit the comparison when
> using git diff --no-index. This is similar to how you can limit what is
> included with pathspecs when comparing inside a repository.
>
> This version uses only one set of pathspecs and instead uses some logic to
> skip past the root of each directory tree being scanned. This avoids needing
> to parse pathspecs multiple times, and is overall a simpler approach.
> ...
> I tried a couple of different methods for skipping past the leading portion
> of a path, including skip_prefix. Ultimately just the index to skip to
> seemed like the simplest solution. I like that it means we only need a
> single pathspec array now, and that we no longer have to worry about
> changing prefix_path_gently.