Re: [PATCH 1/3] sparse-checkout: take care of "--end-of-options" in set/add/check-rules

>
> 93851746 (parse-options: decouple "--end-of-options" and "--",
> 2023-12-06) updated the world order to make callers of parse-options
> that set PARSE_OPT_KEEP_UNKNOWN_OPT responsible for deciding what to
> do with "--end-of-options" they may see after parse_options() returns.
>
> This unfortunately broke "sparse-checkout set/add", and from this
> invocation,
>
>   "git sparse-checkout [add|set] --[no-]cone --end-of-options pattern..."
>
> we now see "--end-of-options" listed in .git/info/sparse-checkout as if
> it is one of the path patterns.
>
> A breakage that results from the same cause exists in the check-rules
> subcommand, but check-rules has a few other problems that need to be
> corrected before it can fully work with --end-of-options safely,
> which will be addressed later.
>
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
>  builtin/sparse-checkout.c          | 3 +++
>  parse-options.c                    | 8 ++++++++
>  parse-options.h                    | 2 ++
>  t/t1090-sparse-checkout-scope.sh   | 8 ++++++++
>  t/t1091-sparse-checkout-builtin.sh | 2 +-
>  5 files changed, 22 insertions(+), 1 deletion(-)
>
> diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
> index 5c8ffb1f75..8f55127202 100644
> --- a/builtin/sparse-checkout.c
> +++ b/builtin/sparse-checkout.c
> @@ -779,6 +779,7 @@ static int sparse_checkout_add(int argc, const char **argv, const char *prefix)
>                              builtin_sparse_checkout_add_options,
>                              builtin_sparse_checkout_add_usage,
>                              PARSE_OPT_KEEP_UNKNOWN_OPT);
> +       parse_opt_skip_end_of_options(&argc, &argv);
>
>         sanitize_paths(argc, argv, prefix, add_opts.skip_checks);
>
> @@ -826,6 +827,7 @@ static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
>                              builtin_sparse_checkout_set_options,
>                              builtin_sparse_checkout_set_usage,
>                              PARSE_OPT_KEEP_UNKNOWN_OPT);
> +       parse_opt_skip_end_of_options(&argc, &argv);
>
>         if (update_modes(&set_opts.cone_mode, &set_opts.sparse_index))
>                 return 1;
> @@ -998,6 +1000,7 @@ static int sparse_checkout_check_rules(int argc, const char **argv, const char *
>                              builtin_sparse_checkout_check_rules_options,
>                              builtin_sparse_checkout_check_rules_usage,
>                              PARSE_OPT_KEEP_UNKNOWN_OPT);
> +       parse_opt_skip_end_of_options(&argc, &argv);
>
>         if (check_rules_opts.rules_file && check_rules_opts.cone_mode < 0)
>                 check_rules_opts.cone_mode = 1;
> diff --git a/parse-options.c b/parse-options.c
> index d50962062e..fe265bbf68 100644
> --- a/parse-options.c
> +++ b/parse-options.c
> @@ -1321,3 +1321,11 @@ void die_for_incompatible_opt4(int opt1, const char *opt1_name,
>                 break;
>         }
>  }
> +
> +void parse_opt_skip_end_of_options(int *argc, const char ***argv)
> +{
> +       if (*argc && !strcmp(**argv, "--end-of-options")) {
> +               (*argc)--;
> +               (*argv)++;
> +       }
> +}
> diff --git a/parse-options.h b/parse-options.h
> index bd62e20268..0d3354d4a8 100644
> --- a/parse-options.h
> +++ b/parse-options.h
> @@ -498,6 +498,8 @@ int parse_opt_passthru_argv(const struct option *, const char *, int);
>  /* value is enum branch_track* */
>  int parse_opt_tracking_mode(const struct option *, const char *, int);
>
> +void parse_opt_skip_end_of_options(int *argc, const char ***argv);
> +
>  #define OPT__VERBOSE(var, h)  OPT_COUNTUP('v', "verbose", (var), (h))
>  #define OPT__QUIET(var, h)    OPT_COUNTUP('q', "quiet",   (var), (h))
>  #define OPT__VERBOSITY(var) { \
> diff --git a/t/t1090-sparse-checkout-scope.sh b/t/t1090-sparse-checkout-scope.sh
> index 3a14218b24..5b96716235 100755
> --- a/t/t1090-sparse-checkout-scope.sh
> +++ b/t/t1090-sparse-checkout-scope.sh
> @@ -57,6 +57,14 @@ test_expect_success 'return to full checkout of main' '
>  test_expect_success 'skip-worktree on files outside sparse patterns' '
>         git sparse-checkout disable &&
>         git sparse-checkout set --no-cone "a*" &&
> +       cat .git/info/sparse-checkout >wo-eoo &&
> +
> +       git sparse-checkout disable &&
> +       git sparse-checkout set --no-cone --end-of-options "a*" &&
> +       cat .git/info/sparse-checkout >w-eoo &&
> +
> +       test_cmp wo-eoo w-eoo &&
> +
>         git checkout-index --all --ignore-skip-worktree-bits &&
>
>         git ls-files -t >output &&
> diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh
> index f67611da28..e33a6ed1b4 100755
> --- a/t/t1091-sparse-checkout-builtin.sh
> +++ b/t/t1091-sparse-checkout-builtin.sh
> @@ -334,7 +334,7 @@ test_expect_success 'cone mode: set with nested folders' '
>
>  test_expect_success 'cone mode: add independent path' '
>         git -C repo sparse-checkout set deep/deeper1 &&
> -       git -C repo sparse-checkout add folder1 &&
> +       git -C repo sparse-checkout add --end-of-options folder1 &&
>         cat >expect <<-\EOF &&
>         /*
>         !/*/
> --
> 2.43.0-174-g055bb6e996