[PATCH v3 04/32] submodule--helper: remove unused "list" helper

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Remove the "submodule--helper list" sub-command, which hasn't been
used by git-submodule.sh since 2964d6e5e1e (submodule: port subcommand
'set-branch' from shell to C, 2020-06-02).

There was a test added in 2b56bb7a87a (submodule helper list: respect
correct path prefix, 2016-02-24) which relied on it, but the right
thing to do here is to delete that test as well.

That test was regression testing the "list" subcommand itself. We're
not getting anything useful from the "list | cut -f2" invocation that
we couldn't get from "foreach 'echo $sm_path'".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/submodule--helper.c | 40 -------------------------------------
 t/t7400-submodule-basic.sh  | 25 -----------------------
 2 files changed, 65 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index fc4d2779da6..24a305151d1 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -266,45 +266,6 @@ static char *get_up_path(const char *path)
 	return strbuf_detach(&sb, NULL);
 }
 
-static int module_list(int argc, const char **argv, const char *prefix)
-{
-	int i;
-	struct pathspec pathspec;
-	struct module_list list = MODULE_LIST_INIT;
-
-	struct option module_list_options[] = {
-		OPT_STRING(0, "prefix", &prefix,
-			   N_("path"),
-			   N_("alternative anchor for relative paths")),
-		OPT_END()
-	};
-
-	const char *const git_submodule_helper_usage[] = {
-		N_("git submodule--helper list [--prefix=<path>] [<path>...]"),
-		NULL
-	};
-
-	argc = parse_options(argc, argv, prefix, module_list_options,
-			     git_submodule_helper_usage, 0);
-
-	if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
-		return 1;
-
-	for (i = 0; i < list.nr; i++) {
-		const struct cache_entry *ce = list.entries[i];
-
-		if (ce_stage(ce))
-			printf("%06o %s U\t", ce->ce_mode,
-			       oid_to_hex(null_oid()));
-		else
-			printf("%06o %s %d\t", ce->ce_mode,
-			       oid_to_hex(&ce->oid), ce_stage(ce));
-
-		fprintf(stdout, "%s\n", ce->name);
-	}
-	return 0;
-}
-
 static void for_each_listed_submodule(const struct module_list *list,
 				      each_submodule_fn fn, void *cb_data)
 {
@@ -3343,7 +3304,6 @@ struct cmd_struct {
 };
 
 static struct cmd_struct commands[] = {
-	{"list", module_list, 0},
 	{"clone", module_clone, SUPPORT_SUPER_PREFIX},
 	{"add", module_add, 0},
 	{"update", module_update, SUPPORT_SUPER_PREFIX},
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 6a77d817a82..b50db3f1031 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -1255,31 +1255,6 @@ test_expect_success 'submodule add clone shallow submodule' '
 	)
 '
 
-test_expect_success 'submodule helper list is not confused by common prefixes' '
-	mkdir -p dir1/b &&
-	(
-		cd dir1/b &&
-		git init &&
-		echo hi >testfile2 &&
-		git add . &&
-		git commit -m "test1"
-	) &&
-	mkdir -p dir2/b &&
-	(
-		cd dir2/b &&
-		git init &&
-		echo hello >testfile1 &&
-		git add .  &&
-		git commit -m "test2"
-	) &&
-	git submodule add /dir1/b dir1/b &&
-	git submodule add /dir2/b dir2/b &&
-	git commit -m "first submodule commit" &&
-	git submodule--helper list dir1/b | cut -f 2 >actual &&
-	echo "dir1/b" >expect &&
-	test_cmp expect actual
-'
-
 test_expect_success 'setup superproject with submodules' '
 	git init sub1 &&
 	test_commit -C sub1 test &&
-- 
2.37.2.1279.g64dec4e13cf