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builtin/reflog.c: let parse-options parse subcommands

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'git reflog' parses its subcommands with a couple of if-else if
statements.  parse-options has just learned to parse subcommands, so
let's use that facility instead, with the benefits of shorter code,
and listing subcommands for Bash completion.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2022-08-19 18:04:07 +02:00 committed by Junio C Hamano
parent 54ef7676ba
commit 729b97332b
1 changed files with 11 additions and 30 deletions
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41
builtin/reflog.c
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@ -404,40 +404,21 @@ static int cmd_reflog_exists(int argc, const char **argv, const char *prefix)
int cmd_reflog(int argc, const char **argv, const char *prefix)
{
parse_opt_subcommand_fn *fn = NULL;
struct option options[] = {
OPT_SUBCOMMAND("show", &fn, cmd_reflog_show),
OPT_SUBCOMMAND("expire", &fn, cmd_reflog_expire),
OPT_SUBCOMMAND("delete", &fn, cmd_reflog_delete),
OPT_SUBCOMMAND("exists", &fn, cmd_reflog_exists),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, reflog_usage,
PARSE_OPT_SUBCOMMAND_OPTIONAL |
PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0 |
PARSE_OPT_KEEP_UNKNOWN_OPT |
PARSE_OPT_NO_INTERNAL_HELP);
/*
* With "git reflog" we default to showing it. !argc is
* impossible with PARSE_OPT_KEEP_ARGV0.
*/
if (argc == 1)
goto log_reflog;
if (!strcmp(argv[1], "-h"))
usage_with_options(reflog_usage, options);
else if (*argv[1] == '-')
goto log_reflog;
if (!strcmp(argv[1], "show"))
return cmd_reflog_show(argc - 1, argv + 1, prefix);
else if (!strcmp(argv[1], "expire"))
return cmd_reflog_expire(argc - 1, argv + 1, prefix);
else if (!strcmp(argv[1], "delete"))
return cmd_reflog_delete(argc - 1, argv + 1, prefix);
else if (!strcmp(argv[1], "exists"))
return cmd_reflog_exists(argc - 1, argv + 1, prefix);
/*
* Fall-through for e.g. "git reflog -1", "git reflog master",
* as well as the plain "git reflog" above goto above.
*/
log_reflog:
return cmd_log_reflog(argc, argv, prefix);
PARSE_OPT_KEEP_UNKNOWN_OPT);
if (fn)
return fn(argc - 1, argv + 1, prefix);
else
return cmd_log_reflog(argc, argv, prefix);
}