avoid using skip_prefix as a boolean
[git/git.git] / parse-options.c
CommitLineData
4a59fd13
PH
1#include "git-compat-util.h"
2#include "parse-options.h"
26141b5b 3#include "cache.h"
269defdf 4#include "commit.h"
73e9da01 5#include "color.h"
c0821965 6#include "utf8.h"
4a59fd13 7
47e9cd28
TR
8static int parse_options_usage(struct parse_opt_ctx_t *ctx,
9 const char * const *usagestr,
9c7304e3 10 const struct option *opts, int err);
41064ebc 11
4a59fd13
PH
12#define OPT_SHORT 1
13#define OPT_UNSET 2
14
1f275b7c 15int optbug(const struct option *opt, const char *reason)
1e5ce570
JN
16{
17 if (opt->long_name)
18 return error("BUG: option '%s' %s", opt->long_name, reason);
19 return error("BUG: switch '%c' %s", opt->short_name, reason);
20}
21
1cc6985c
PH
22static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
23 int flags, const char **arg)
24{
25 if (p->opt) {
26 *arg = p->opt;
27 p->opt = NULL;
28 } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) {
29 *arg = (const char *)opt->defval;
d5d745f9 30 } else if (p->argc > 1) {
1cc6985c
PH
31 p->argc--;
32 *arg = *++p->argv;
33 } else
34 return opterror(opt, "requires a value", flags);
35 return 0;
36}
37
df217ed6
SB
38static void fix_filename(const char *prefix, const char **file)
39{
40 if (!file || !*file || !prefix || is_absolute_path(*file)
41 || !strcmp("-", *file))
42 return;
43 *file = xstrdup(prefix_filename(prefix, strlen(prefix), *file));
44}
45
11588263
JH
46static int opt_command_mode_error(const struct option *opt,
47 const struct option *all_opts,
48 int flags)
49{
50 const struct option *that;
51 struct strbuf message = STRBUF_INIT;
52 struct strbuf that_name = STRBUF_INIT;
53
54 /*
55 * Find the other option that was used to set the variable
56 * already, and report that this is not compatible with it.
57 */
58 for (that = all_opts; that->type != OPTION_END; that++) {
59 if (that == opt ||
60 that->type != OPTION_CMDMODE ||
61 that->value != opt->value ||
62 that->defval != *(int *)opt->value)
63 continue;
64
65 if (that->long_name)
66 strbuf_addf(&that_name, "--%s", that->long_name);
67 else
68 strbuf_addf(&that_name, "-%c", that->short_name);
69 strbuf_addf(&message, ": incompatible with %s", that_name.buf);
70 strbuf_release(&that_name);
71 opterror(opt, message.buf, flags);
72 strbuf_release(&message);
73 return -1;
74 }
75 return opterror(opt, ": incompatible with something else", flags);
76}
77
7e7bbcb4 78static int get_value(struct parse_opt_ctx_t *p,
11588263
JH
79 const struct option *opt,
80 const struct option *all_opts,
81 int flags)
4a59fd13 82{
ffe659f9 83 const char *s, *arg;
db7244bd 84 const int unset = flags & OPT_UNSET;
df217ed6 85 int err;
4a59fd13 86
db7244bd 87 if (unset && p->opt)
4a59fd13 88 return opterror(opt, "takes no value", flags);
db7244bd
PH
89 if (unset && (opt->flags & PARSE_OPT_NONEG))
90 return opterror(opt, "isn't available", flags);
c1f4ec9e
SB
91 if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG))
92 return opterror(opt, "takes no value", flags);
db7244bd 93
db7244bd 94 switch (opt->type) {
b0b3a8b6
JN
95 case OPTION_LOWLEVEL_CALLBACK:
96 return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset);
97
db7244bd
PH
98 case OPTION_BIT:
99 if (unset)
100 *(int *)opt->value &= ~opt->defval;
4a59fd13 101 else
db7244bd
PH
102 *(int *)opt->value |= opt->defval;
103 return 0;
104
2f4b97f9
RS
105 case OPTION_NEGBIT:
106 if (unset)
107 *(int *)opt->value |= opt->defval;
108 else
109 *(int *)opt->value &= ~opt->defval;
110 return 0;
111
b04ba2bb 112 case OPTION_COUNTUP:
db7244bd
PH
113 *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
114 return 0;
115
116 case OPTION_SET_INT:
117 *(int *)opt->value = unset ? 0 : opt->defval;
118 return 0;
119
11588263
JH
120 case OPTION_CMDMODE:
121 /*
122 * Giving the same mode option twice, although is unnecessary,
123 * is not a grave error, so let it pass.
124 */
125 if (*(int *)opt->value && *(int *)opt->value != opt->defval)
126 return opt_command_mode_error(opt, all_opts, flags);
127 *(int *)opt->value = opt->defval;
128 return 0;
129
4a59fd13 130 case OPTION_STRING:
1cc6985c 131 if (unset)
db7244bd 132 *(const char **)opt->value = NULL;
1cc6985c 133 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
ffe659f9 134 *(const char **)opt->value = (const char *)opt->defval;
1cc6985c
PH
135 else
136 return get_arg(p, opt, flags, (const char **)opt->value);
4a59fd13
PH
137 return 0;
138
df217ed6
SB
139 case OPTION_FILENAME:
140 err = 0;
141 if (unset)
142 *(const char **)opt->value = NULL;
143 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
144 *(const char **)opt->value = (const char *)opt->defval;
145 else
146 err = get_arg(p, opt, flags, (const char **)opt->value);
147
148 if (!err)
149 fix_filename(p->prefix, (const char **)opt->value);
150 return err;
151
ffe659f9 152 case OPTION_CALLBACK:
db7244bd 153 if (unset)
07fe54db 154 return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
db7244bd 155 if (opt->flags & PARSE_OPT_NOARG)
07fe54db 156 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
c43a2483 157 if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
07fe54db 158 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
1cc6985c
PH
159 if (get_arg(p, opt, flags, &arg))
160 return -1;
161 return (*opt->callback)(opt, arg, 0) ? (-1) : 0;
ffe659f9 162
4a59fd13 163 case OPTION_INTEGER:
db7244bd 164 if (unset) {
4a59fd13
PH
165 *(int *)opt->value = 0;
166 return 0;
167 }
c43a2483 168 if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
ffe659f9
PH
169 *(int *)opt->value = opt->defval;
170 return 0;
171 }
1cc6985c
PH
172 if (get_arg(p, opt, flags, &arg))
173 return -1;
174 *(int *)opt->value = strtol(arg, (char **)&s, 10);
4a59fd13
PH
175 if (*s)
176 return opterror(opt, "expects a numerical value", flags);
177 return 0;
178
179 default:
180 die("should not happen, someone must be hit on the forehead");
181 }
182}
183
7e7bbcb4 184static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
4a59fd13 185{
11588263 186 const struct option *all_opts = options;
e0319ff5
RS
187 const struct option *numopt = NULL;
188
4a59fd13
PH
189 for (; options->type != OPTION_END; options++) {
190 if (options->short_name == *p->opt) {
191 p->opt = p->opt[1] ? p->opt + 1 : NULL;
11588263 192 return get_value(p, options, all_opts, OPT_SHORT);
4a59fd13 193 }
e0319ff5
RS
194
195 /*
196 * Handle the numerical option later, explicit one-digit
197 * options take precedence over it.
198 */
199 if (options->type == OPTION_NUMBER)
200 numopt = options;
201 }
202 if (numopt && isdigit(*p->opt)) {
203 size_t len = 1;
204 char *arg;
205 int rc;
206
207 while (isdigit(p->opt[len]))
208 len++;
209 arg = xmemdupz(p->opt, len);
210 p->opt = p->opt[len] ? p->opt + len : NULL;
211 rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
212 free(arg);
213 return rc;
4a59fd13 214 }
07fe54db 215 return -2;
4a59fd13
PH
216}
217
7e7bbcb4 218static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
4a59fd13
PH
219 const struct option *options)
220{
11588263 221 const struct option *all_opts = options;
2c5495f7 222 const char *arg_end = strchrnul(arg, '=');
243e0614
JS
223 const struct option *abbrev_option = NULL, *ambiguous_option = NULL;
224 int abbrev_flags = 0, ambiguous_flags = 0;
7f275b91 225
4a59fd13 226 for (; options->type != OPTION_END; options++) {
0f1930c5
RS
227 const char *rest, *long_name = options->long_name;
228 int flags = 0, opt_flags = 0;
4a59fd13 229
0f1930c5 230 if (!long_name)
4a59fd13
PH
231 continue;
232
0f1930c5
RS
233again:
234 rest = skip_prefix(arg, long_name);
580d5bff
PH
235 if (options->type == OPTION_ARGUMENT) {
236 if (!rest)
237 continue;
238 if (*rest == '=')
239 return opterror(options, "takes no value", flags);
240 if (*rest)
241 continue;
242 p->out[p->cpidx++] = arg - 2;
243 return 0;
244 }
4a59fd13 245 if (!rest) {
7f275b91 246 /* abbreviated? */
0f1930c5 247 if (!strncmp(long_name, arg, arg_end - arg)) {
7f275b91 248is_abbreviated:
243e0614
JS
249 if (abbrev_option) {
250 /*
251 * If this is abbreviated, it is
252 * ambiguous. So when there is no
253 * exact match later, we need to
254 * error out.
255 */
256 ambiguous_option = abbrev_option;
257 ambiguous_flags = abbrev_flags;
258 }
7f275b91
JS
259 if (!(flags & OPT_UNSET) && *arg_end)
260 p->opt = arg_end + 1;
261 abbrev_option = options;
0f1930c5 262 abbrev_flags = flags ^ opt_flags;
7f275b91
JS
263 continue;
264 }
6bbfd1fa
AS
265 /* negation allowed? */
266 if (options->flags & PARSE_OPT_NONEG)
267 continue;
7f275b91 268 /* negated and abbreviated very much? */
59556548 269 if (starts_with("no-", arg)) {
7f275b91
JS
270 flags |= OPT_UNSET;
271 goto is_abbreviated;
272 }
273 /* negated? */
59556548
CC
274 if (!starts_with(arg, "no-")) {
275 if (starts_with(long_name, "no-")) {
0f1930c5
RS
276 long_name += 3;
277 opt_flags |= OPT_UNSET;
278 goto again;
279 }
4a59fd13 280 continue;
0f1930c5 281 }
4a59fd13 282 flags |= OPT_UNSET;
0f1930c5 283 rest = skip_prefix(arg + 3, long_name);
7f275b91 284 /* abbreviated and negated? */
59556548 285 if (!rest && starts_with(long_name, arg + 3))
7f275b91 286 goto is_abbreviated;
4a59fd13
PH
287 if (!rest)
288 continue;
289 }
290 if (*rest) {
291 if (*rest != '=')
292 continue;
293 p->opt = rest + 1;
294 }
11588263 295 return get_value(p, options, all_opts, flags ^ opt_flags);
4a59fd13 296 }
243e0614
JS
297
298 if (ambiguous_option)
299 return error("Ambiguous option: %s "
300 "(could be --%s%s or --%s%s)",
301 arg,
302 (ambiguous_flags & OPT_UNSET) ? "no-" : "",
303 ambiguous_option->long_name,
304 (abbrev_flags & OPT_UNSET) ? "no-" : "",
305 abbrev_option->long_name);
7f275b91 306 if (abbrev_option)
11588263 307 return get_value(p, abbrev_option, all_opts, abbrev_flags);
07fe54db 308 return -2;
4a59fd13
PH
309}
310
51a9949e
RS
311static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
312 const struct option *options)
313{
11588263
JH
314 const struct option *all_opts = options;
315
51a9949e
RS
316 for (; options->type != OPTION_END; options++) {
317 if (!(options->flags & PARSE_OPT_NODASH))
318 continue;
51a9949e 319 if (options->short_name == arg[0] && arg[1] == '\0')
11588263 320 return get_value(p, options, all_opts, OPT_SHORT);
51a9949e
RS
321 }
322 return -2;
323}
324
1121a878 325static void check_typos(const char *arg, const struct option *options)
3a9f0f41
PH
326{
327 if (strlen(arg) < 3)
328 return;
329
59556548 330 if (starts_with(arg, "no-")) {
3a9f0f41
PH
331 error ("did you mean `--%s` (with two dashes ?)", arg);
332 exit(129);
333 }
334
335 for (; options->type != OPTION_END; options++) {
336 if (!options->long_name)
337 continue;
59556548 338 if (starts_with(options->long_name, arg)) {
3a9f0f41
PH
339 error ("did you mean `--%s` (with two dashes ?)", arg);
340 exit(129);
341 }
342 }
343}
344
cb9d398c
PH
345static void parse_options_check(const struct option *opts)
346{
347 int err = 0;
348
349 for (; opts->type != OPTION_END; opts++) {
350 if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) &&
1e5ce570
JN
351 (opts->flags & PARSE_OPT_OPTARG))
352 err |= optbug(opts, "uses incompatible flags "
353 "LASTARG_DEFAULT and OPTARG");
a02dd4ff
JN
354 if (opts->flags & PARSE_OPT_NODASH &&
355 ((opts->flags & PARSE_OPT_OPTARG) ||
356 !(opts->flags & PARSE_OPT_NOARG) ||
357 !(opts->flags & PARSE_OPT_NONEG) ||
358 opts->long_name))
359 err |= optbug(opts, "uses feature "
360 "not supported for dashless options");
5c400ed2 361 switch (opts->type) {
b04ba2bb 362 case OPTION_COUNTUP:
5c400ed2
JN
363 case OPTION_BIT:
364 case OPTION_NEGBIT:
365 case OPTION_SET_INT:
5c400ed2
JN
366 case OPTION_NUMBER:
367 if ((opts->flags & PARSE_OPT_OPTARG) ||
368 !(opts->flags & PARSE_OPT_NOARG))
369 err |= optbug(opts, "should not accept an argument");
370 default:
371 ; /* ok. (usually accepts an argument) */
372 }
b6c2a0d4
JH
373 if (opts->argh &&
374 strcspn(opts->argh, " _") != strlen(opts->argh))
375 err |= optbug(opts, "multi-word argh should use dash to separate words");
cb9d398c 376 }
cb9d398c 377 if (err)
1e5ce570 378 exit(128);
cb9d398c
PH
379}
380
7e7bbcb4 381void parse_options_start(struct parse_opt_ctx_t *ctx,
37782920 382 int argc, const char **argv, const char *prefix,
9ca1169f 383 const struct option *options, int flags)
7e7bbcb4
PH
384{
385 memset(ctx, 0, sizeof(*ctx));
386 ctx->argc = argc - 1;
387 ctx->argv = argv + 1;
388 ctx->out = argv;
37782920 389 ctx->prefix = prefix;
a32a4eaa 390 ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);
7e7bbcb4 391 ctx->flags = flags;
0d260f9a
RS
392 if ((flags & PARSE_OPT_KEEP_UNKNOWN) &&
393 (flags & PARSE_OPT_STOP_AT_NON_OPTION))
394 die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together");
9ca1169f 395 parse_options_check(options);
7e7bbcb4
PH
396}
397
47e9cd28
TR
398static int usage_with_options_internal(struct parse_opt_ctx_t *,
399 const char * const *,
9c7304e3 400 const struct option *, int, int);
dd3bf0f4 401
ff43ec3e
PH
402int parse_options_step(struct parse_opt_ctx_t *ctx,
403 const struct option *options,
404 const char * const usagestr[])
4a59fd13 405{
b92891f9
RS
406 int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
407
26141b5b
PH
408 /* we must reset ->opt, unknown short option leave it dangling */
409 ctx->opt = NULL;
410
ff43ec3e
PH
411 for (; ctx->argc; ctx->argc--, ctx->argv++) {
412 const char *arg = ctx->argv[0];
4a59fd13
PH
413
414 if (*arg != '-' || !arg[1]) {
51a9949e
RS
415 if (parse_nodash_opt(ctx, arg, options) == 0)
416 continue;
ff43ec3e 417 if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
979240fe 418 return PARSE_OPT_NON_OPTION;
ff43ec3e 419 ctx->out[ctx->cpidx++] = ctx->argv[0];
4a59fd13
PH
420 continue;
421 }
422
423 if (arg[1] != '-') {
ff43ec3e 424 ctx->opt = arg + 1;
b92891f9 425 if (internal_help && *ctx->opt == 'h')
47e9cd28 426 return parse_options_usage(ctx, usagestr, options, 0);
07fe54db
PH
427 switch (parse_short_opt(ctx, options)) {
428 case -1:
47e9cd28 429 return parse_options_usage(ctx, usagestr, options, 1);
07fe54db 430 case -2:
38916c5b
RS
431 if (ctx->opt)
432 check_typos(arg + 1, options);
b5ce3a54 433 goto unknown;
07fe54db 434 }
ff43ec3e 435 if (ctx->opt)
3a9f0f41 436 check_typos(arg + 1, options);
ff43ec3e 437 while (ctx->opt) {
b92891f9 438 if (internal_help && *ctx->opt == 'h')
47e9cd28 439 return parse_options_usage(ctx, usagestr, options, 0);
07fe54db
PH
440 switch (parse_short_opt(ctx, options)) {
441 case -1:
47e9cd28 442 return parse_options_usage(ctx, usagestr, options, 1);
07fe54db 443 case -2:
26141b5b
PH
444 /* fake a short option thing to hide the fact that we may have
445 * started to parse aggregated stuff
446 *
447 * This is leaky, too bad.
448 */
449 ctx->argv[0] = xstrdup(ctx->opt - 1);
450 *(char *)ctx->argv[0] = '-';
b5ce3a54 451 goto unknown;
07fe54db 452 }
3a9f0f41 453 }
4a59fd13
PH
454 continue;
455 }
456
457 if (!arg[2]) { /* "--" */
ff43ec3e
PH
458 if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {
459 ctx->argc--;
460 ctx->argv++;
4a59fd13
PH
461 }
462 break;
463 }
464
b92891f9 465 if (internal_help && !strcmp(arg + 2, "help-all"))
47e9cd28 466 return usage_with_options_internal(ctx, usagestr, options, 1, 0);
b92891f9 467 if (internal_help && !strcmp(arg + 2, "help"))
47e9cd28 468 return parse_options_usage(ctx, usagestr, options, 0);
07fe54db
PH
469 switch (parse_long_opt(ctx, arg + 2, options)) {
470 case -1:
47e9cd28 471 return parse_options_usage(ctx, usagestr, options, 1);
07fe54db 472 case -2:
b5ce3a54 473 goto unknown;
07fe54db 474 }
b5ce3a54
RS
475 continue;
476unknown:
477 if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
478 return PARSE_OPT_UNKNOWN;
479 ctx->out[ctx->cpidx++] = ctx->argv[0];
480 ctx->opt = NULL;
ff43ec3e
PH
481 }
482 return PARSE_OPT_DONE;
483}
484
485int parse_options_end(struct parse_opt_ctx_t *ctx)
486{
487 memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
488 ctx->out[ctx->cpidx + ctx->argc] = NULL;
489 return ctx->cpidx + ctx->argc;
490}
491
37782920
SB
492int parse_options(int argc, const char **argv, const char *prefix,
493 const struct option *options, const char * const usagestr[],
494 int flags)
ff43ec3e
PH
495{
496 struct parse_opt_ctx_t ctx;
497
9ca1169f 498 parse_options_start(&ctx, argc, argv, prefix, options, flags);
ff43ec3e
PH
499 switch (parse_options_step(&ctx, options, usagestr)) {
500 case PARSE_OPT_HELP:
501 exit(129);
979240fe 502 case PARSE_OPT_NON_OPTION:
ff43ec3e
PH
503 case PARSE_OPT_DONE:
504 break;
505 default: /* PARSE_OPT_UNKNOWN */
07fe54db
PH
506 if (ctx.argv[0][1] == '-') {
507 error("unknown option `%s'", ctx.argv[0] + 2);
b141a478 508 } else if (isascii(*ctx.opt)) {
07fe54db 509 error("unknown switch `%c'", *ctx.opt);
b141a478
EFL
510 } else {
511 error("unknown non-ascii option in string: `%s'",
512 ctx.argv[0]);
07fe54db
PH
513 }
514 usage_with_options(usagestr, options);
4a59fd13
PH
515 }
516
76759c7d 517 precompose_argv(argc, argv);
7e7bbcb4 518 return parse_options_end(&ctx);
4a59fd13 519}
d7a38c54 520
9c7304e3 521static int usage_argh(const struct option *opts, FILE *outfile)
29f25d49
SB
522{
523 const char *s;
34aec9f5 524 int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh;
29f25d49
SB
525 if (opts->flags & PARSE_OPT_OPTARG)
526 if (opts->long_name)
527 s = literal ? "[=%s]" : "[=<%s>]";
528 else
529 s = literal ? "[%s]" : "[<%s>]";
530 else
531 s = literal ? " %s" : " <%s>";
c0821965 532 return utf8_fprintf(outfile, s, opts->argh ? _(opts->argh) : _("..."));
29f25d49
SB
533}
534
d7a38c54
PH
535#define USAGE_OPTS_WIDTH 24
536#define USAGE_GAP 2
537
47e9cd28
TR
538static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
539 const char * const *usagestr,
540 const struct option *opts, int full, int err)
d7a38c54 541{
9c7304e3
GS
542 FILE *outfile = err ? stderr : stdout;
543
49b61802
RS
544 if (!usagestr)
545 return PARSE_OPT_HELP;
546
47e9cd28
TR
547 if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
548 fprintf(outfile, "cat <<\\EOF\n");
549
54e6dc7d 550 fprintf_ln(outfile, _("usage: %s"), _(*usagestr++));
f389c808 551 while (*usagestr && **usagestr)
54e6dc7d
NTND
552 /* TRANSLATORS: the colon here should align with the
553 one in "usage: %s" translation */
554 fprintf_ln(outfile, _(" or: %s"), _(*usagestr++));
44d86e91 555 while (*usagestr) {
54e6dc7d
NTND
556 if (**usagestr)
557 fprintf_ln(outfile, _(" %s"), _(*usagestr));
558 else
559 putchar('\n');
44d86e91
JK
560 usagestr++;
561 }
d7a38c54
PH
562
563 if (opts->type != OPTION_GROUP)
9c7304e3 564 fputc('\n', outfile);
d7a38c54
PH
565
566 for (; opts->type != OPTION_END; opts++) {
567 size_t pos;
568 int pad;
569
570 if (opts->type == OPTION_GROUP) {
9c7304e3 571 fputc('\n', outfile);
d7a38c54 572 if (*opts->help)
54e6dc7d 573 fprintf(outfile, "%s\n", _(opts->help));
d7a38c54
PH
574 continue;
575 }
dd3bf0f4
PH
576 if (!full && (opts->flags & PARSE_OPT_HIDDEN))
577 continue;
d7a38c54 578
9c7304e3 579 pos = fprintf(outfile, " ");
cbb08c2e 580 if (opts->short_name) {
51a9949e 581 if (opts->flags & PARSE_OPT_NODASH)
9c7304e3 582 pos += fprintf(outfile, "%c", opts->short_name);
51a9949e 583 else
9c7304e3 584 pos += fprintf(outfile, "-%c", opts->short_name);
51a9949e 585 }
d7a38c54 586 if (opts->long_name && opts->short_name)
9c7304e3 587 pos += fprintf(outfile, ", ");
d7a38c54 588 if (opts->long_name)
cbb08c2e 589 pos += fprintf(outfile, "--%s", opts->long_name);
e0319ff5 590 if (opts->type == OPTION_NUMBER)
c0821965 591 pos += utf8_fprintf(outfile, _("-NUM"));
d7a38c54 592
b57c68a6
JN
593 if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) ||
594 !(opts->flags & PARSE_OPT_NOARG))
9c7304e3 595 pos += usage_argh(opts, outfile);
d7a38c54 596
f389c808
AR
597 if (pos <= USAGE_OPTS_WIDTH)
598 pad = USAGE_OPTS_WIDTH - pos;
d7a38c54 599 else {
9c7304e3 600 fputc('\n', outfile);
d7a38c54
PH
601 pad = USAGE_OPTS_WIDTH;
602 }
54e6dc7d 603 fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help));
d7a38c54 604 }
9c7304e3 605 fputc('\n', outfile);
f389c808 606
47e9cd28
TR
607 if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
608 fputs("EOF\n", outfile);
609
ee68b87a 610 return PARSE_OPT_HELP;
d7a38c54 611}
0ce865b1 612
c2e86add 613void NORETURN usage_with_options(const char * const *usagestr,
ff43ec3e 614 const struct option *opts)
dd3bf0f4 615{
47e9cd28 616 usage_with_options_internal(NULL, usagestr, opts, 0, 1);
ff43ec3e 617 exit(129);
dd3bf0f4
PH
618}
619
c2e86add 620void NORETURN usage_msg_opt(const char *msg,
451bb210
CC
621 const char * const *usagestr,
622 const struct option *options)
623{
624 fprintf(stderr, "%s\n\n", msg);
625 usage_with_options(usagestr, options);
626}
627
47e9cd28
TR
628static int parse_options_usage(struct parse_opt_ctx_t *ctx,
629 const char * const *usagestr,
9c7304e3 630 const struct option *opts, int err)
ee68b87a 631{
47e9cd28 632 return usage_with_options_internal(ctx, usagestr, opts, 0, err);
ee68b87a
PH
633}
634
a469a101
JK
635#undef opterror
636int opterror(const struct option *opt, const char *reason, int flags)
637{
638 if (flags & OPT_SHORT)
639 return error("switch `%c' %s", opt->short_name, reason);
640 if (flags & OPT_UNSET)
641 return error("option `no-%s' %s", opt->long_name, reason);
642 return error("option `%s' %s", opt->long_name, reason);
643}