Have the cmd_submodule__helper() use the OPT_SUBCOMMAND() API
introduced in fa83cc834da (parse-options: add support for parsing
subcommands, 2022-08-19).
This is only a marginal reduction in line count, but once we start
unifying this with a yet-to-be-added "builtin/submodule.c" it'll be
much easier to reason about those changes, as they'll both use
OPT_SUBCOMMAND().
We don't need to worry about "argv[0]" being NULL in the die() because
we'd have errored out in parse_options() as we're not using
"PARSE_OPT_SUBCOMMAND_OPTIONAL".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/submodule--helper.c | 78 ++++++++++++++++++-------------------
git.c | 2 +-
2 files changed, 39 insertions(+), 41 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 2012ad31d7f..0bc25dcf5ae 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -3350,47 +3350,45 @@ static int module_add(int argc, const char **argv, const char *prefix)
return ret;
}
-#define SUPPORT_SUPER_PREFIX (1<<0)
-
-struct cmd_struct {
- const char *cmd;
- int (*fn)(int, const char **, const char *);
- unsigned option;
-};
-
-static struct cmd_struct commands[] = {
- {"clone", module_clone, SUPPORT_SUPER_PREFIX},
- {"add", module_add, 0},
- {"update", module_update, SUPPORT_SUPER_PREFIX},
- {"foreach", module_foreach, SUPPORT_SUPER_PREFIX},
- {"init", module_init, 0},
- {"status", module_status, SUPPORT_SUPER_PREFIX},
- {"sync", module_sync, SUPPORT_SUPER_PREFIX},
- {"deinit", module_deinit, 0},
- {"summary", module_summary, 0},
- {"push-check", push_check, 0},
- {"absorbgitdirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
- {"set-url", module_set_url, 0},
- {"set-branch", module_set_branch, 0},
- {"create-branch", module_create_branch, 0},
-};
-
int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
{
- int i;
- if (argc < 2 || !strcmp(argv[1], "-h"))
- usage("git submodule--helper <command>");
-
- for (i = 0; i < ARRAY_SIZE(commands); i++) {
- if (!strcmp(argv[1], commands[i].cmd)) {
- if (get_super_prefix() &&
- !(commands[i].option & SUPPORT_SUPER_PREFIX))
- die(_("%s doesn't support --super-prefix"),
- commands[i].cmd);
- return commands[i].fn(argc - 1, argv + 1, prefix);
- }
- }
+ const char *cmd = argv[0];
+ const char *subcmd;
+ parse_opt_subcommand_fn *fn = NULL;
+ const char *const usage[] = {
+ N_("git submodule--helper <command>"),
+ NULL
+ };
+ struct option options[] = {
+ OPT_SUBCOMMAND("clone", &fn, module_clone),
+ OPT_SUBCOMMAND("add", &fn, module_add),
+ OPT_SUBCOMMAND("update", &fn, module_update),
+ OPT_SUBCOMMAND("foreach", &fn, module_foreach),
+ OPT_SUBCOMMAND("init", &fn, module_init),
+ OPT_SUBCOMMAND("status", &fn, module_status),
+ OPT_SUBCOMMAND("sync", &fn, module_sync),
+ OPT_SUBCOMMAND("deinit", &fn, module_deinit),
+ OPT_SUBCOMMAND("summary", &fn, module_summary),
+ OPT_SUBCOMMAND("push-check", &fn, push_check),
+ OPT_SUBCOMMAND("absorbgitdirs", &fn, absorb_git_dirs),
+ OPT_SUBCOMMAND("set-url", &fn, module_set_url),
+ OPT_SUBCOMMAND("set-branch", &fn, module_set_branch),
+ OPT_SUBCOMMAND("create-branch", &fn, module_create_branch),
+ OPT_END()
+ };
+ argc = parse_options(argc, argv, prefix, options, usage, 0);
+ subcmd = argv[0];
+
+ if (strcmp(subcmd, "clone") && strcmp(subcmd, "update") &&
+ strcmp(subcmd, "foreach") && strcmp(subcmd, "status") &&
+ strcmp(subcmd, "sync") && strcmp(subcmd, "absorbgitdirs") &&
+ get_super_prefix())
+ /*
+ * xstrfmt() rather than "%s %s" to keep the translated
+ * string identical to git.c's.
+ */
+ die(_("%s doesn't support --super-prefix"),
+ xstrfmt("'%s %s'", cmd, subcmd));
- die(_("'%s' is not a valid submodule--helper "
- "subcommand"), argv[1]);
+ return fn(argc, argv, prefix);
}
diff --git a/git.c b/git.c
index ee7758dcb0e..fb69e605912 100644
--- a/git.c
+++ b/git.c
@@ -610,7 +610,7 @@ static struct cmd_struct commands[] = {
{ "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE },
{ "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
{ "stripspace", cmd_stripspace },
- { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT },
+ { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX },
{ "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE },
{ "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
{ "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG },
--
2.38.0.1280.g8136eb6fab2
