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submodule--helper: use OPT_SUBCOMMAND() API

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Have the cmd_submodule__helper() use the OPT_SUBCOMMAND() API
introduced in fa83cc834d (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@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2022-11-08 15:10:40 +01:00 committed by Taylor Blau
parent 1b6e2001c7
commit 69d94464e1
2 changed files with 38 additions and 40 deletions
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76
builtin/submodule--helper.c
View File

@ -3351,47 +3351,45 @@ cleanup:
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>");
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];
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);
}
}
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);
}

2
git.c
View File

@ -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 },