Re: [PATCH v3] diff-lib: honor override_submodule_config flag bit

[Eric Sunshine <sunshine@sunshineco.com>]

On Wed, Jun 14, 2023 at 12:37 PM Josip Sokcevic <sokcevic@google.com> wrote:
> When `diff.ignoreSubmodules = all` is set and submodule commits are
> manually staged (e.g. via `git-update-index`), `git-commit` should
> record the commit  with updated submodules.
>
> `index_differs_from` is called from `prepare_to_commit` with flags set to
> `override_submodule_config = 1`. `index_differs_from` then merges the
> default diff flags and passed flags.
>
> When `diff.ignoreSubmodules` is set to "all", `flags` ends up having
> both `override_submodule_config` and `ignore_submodules` set to 1. This
> results in `git-commit` ignoring staged commits.
>
> This patch restores original `flags.ignore_submodule` if
> `flags.override_submodule_config` is set.
>
> Signed-off-by: Josip Sokcevic <sokcevic@google.com>

Looking much better. Just a minor (nitpicky) style comment...

> diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
> @@ -1179,4 +1179,27 @@ test_expect_success 'submodule update --recursive skip submodules with strategy=
> +add_submodule_commit_and_validate () {
> +       HASH=$(git rev-parse HEAD) &&
> +       git update-index --add --cacheinfo 160000,$HASH,sub &&
> +       git commit -m "create submodule" &&
> +       echo "160000 commit $HASH       sub" > expect &&

Drop the space after the redirection operator:

    echo "160000 commit $HASH       sub" >expect &&

> +       git ls-tree HEAD -- sub >actual &&

This one correctly omits whitespace after the redirection operator.

> +       test_cmp expect actual
> +}