diff-parseopt: convert -O

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Nguyễn Thái Ngọc Duy committed Mar 24, 2019 at 15:20 UTC f731814b3a5eec699b73bbb72ff07de66aea100d
1 file changed +3 -20
diff.c
+3 -20
@@ -4617,22 +4617,6 @@ static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *va
4617 return 1;
4618 }
4619
4620 -static inline int short_opt(char opt, const char **argv,
4621 - const char **optarg)
4622 -{
4623 - const char *arg = argv[0];
4624 - if (arg[0] != '-' || arg[1] != opt)
4625 - return 0;
4626 - if (arg[2] != '\0') {
4627 - *optarg = arg + 2;
4628 - return 1;
4629 - }
4630 - if (!argv[1])
4631 - die("Option '%c' requires a value", opt);
4632 - *optarg = argv[1];
4633 - return 2;
4634 -}
4635 -
4620 int parse_long_opt(const char *opt, const char **argv,
4621 const char **optarg)
4622 {
@@ -5397,6 +5381,8 @@ static void prep_parse_options(struct diff_options *options)
5381 OPT_BIT_F(0, "pickaxe-regex", &options->pickaxe_opts,
5382 N_("treat <string> in -S as extended POSIX regular expression"),
5383 DIFF_PICKAXE_REGEX, PARSE_OPT_NONEG),
5384 + OPT_FILENAME('O', NULL, &options->orderfile,
5385 + N_("control the order in which files appear in the output")),
5386 { OPTION_CALLBACK, 0, "output", options, N_("<file>"),
5387 N_("Output to a specific file"),
5388 PARSE_OPT_NONEG, NULL, 0, diff_opt_output },
@@ -5449,10 +5435,7 @@ int diff_opt_parse(struct diff_options *options,
5435 }
5436
5437 /* misc options */
5452 - else if ((argcount = short_opt('O', av, &optarg))) {
5453 - options->orderfile = prefix_filename(prefix, optarg);
5454 - return argcount;
5455 - } else if (skip_prefix(arg, "--find-object=", &arg))
5438 + else if (skip_prefix(arg, "--find-object=", &arg))
5439 return parse_objfind_opt(options, arg);
5440 else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
5441 int offending = parse_diff_filter_opt(optarg, options);