Git 2.13
[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
PH
7
8#define OPT_SHORT 1
9#define OPT_UNSET 2
10
1f275b7c 11int optbug(const struct option *opt, const char *reason)
1e5ce570 12{
af465af8
JH
13 if (opt->long_name) {
14 if (opt->short_name)
15 return error("BUG: switch '%c' (--%s) %s",
16 opt->short_name, opt->long_name, reason);
1e5ce570 17 return error("BUG: option '%s' %s", opt->long_name, reason);
af465af8 18 }
1e5ce570
JN
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;
e4da43b1 43 *file = prefix_filename(prefix, *file);
df217ed6
SB
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:
e0070e8b
PB
113 if (*(int *)opt->value < 0)
114 *(int *)opt->value = 0;
db7244bd
PH
115 *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
116 return 0;
117
118 case OPTION_SET_INT:
119 *(int *)opt->value = unset ? 0 : opt->defval;
120 return 0;
121
11588263
JH
122 case OPTION_CMDMODE:
123 /*
124 * Giving the same mode option twice, although is unnecessary,
125 * is not a grave error, so let it pass.
126 */
127 if (*(int *)opt->value && *(int *)opt->value != opt->defval)
128 return opt_command_mode_error(opt, all_opts, flags);
129 *(int *)opt->value = opt->defval;
130 return 0;
131
4a59fd13 132 case OPTION_STRING:
1cc6985c 133 if (unset)
db7244bd 134 *(const char **)opt->value = NULL;
1cc6985c 135 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
ffe659f9 136 *(const char **)opt->value = (const char *)opt->defval;
1cc6985c
PH
137 else
138 return get_arg(p, opt, flags, (const char **)opt->value);
4a59fd13
PH
139 return 0;
140
df217ed6
SB
141 case OPTION_FILENAME:
142 err = 0;
143 if (unset)
144 *(const char **)opt->value = NULL;
145 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
146 *(const char **)opt->value = (const char *)opt->defval;
147 else
148 err = get_arg(p, opt, flags, (const char **)opt->value);
149
150 if (!err)
151 fix_filename(p->prefix, (const char **)opt->value);
152 return err;
153
ffe659f9 154 case OPTION_CALLBACK:
db7244bd 155 if (unset)
07fe54db 156 return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
db7244bd 157 if (opt->flags & PARSE_OPT_NOARG)
07fe54db 158 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
c43a2483 159 if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
07fe54db 160 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
1cc6985c
PH
161 if (get_arg(p, opt, flags, &arg))
162 return -1;
163 return (*opt->callback)(opt, arg, 0) ? (-1) : 0;
ffe659f9 164
4a59fd13 165 case OPTION_INTEGER:
db7244bd 166 if (unset) {
4a59fd13
PH
167 *(int *)opt->value = 0;
168 return 0;
169 }
c43a2483 170 if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
ffe659f9
PH
171 *(int *)opt->value = opt->defval;
172 return 0;
173 }
1cc6985c
PH
174 if (get_arg(p, opt, flags, &arg))
175 return -1;
176 *(int *)opt->value = strtol(arg, (char **)&s, 10);
4a59fd13
PH
177 if (*s)
178 return opterror(opt, "expects a numerical value", flags);
179 return 0;
180
2a514ed8
CB
181 case OPTION_MAGNITUDE:
182 if (unset) {
183 *(unsigned long *)opt->value = 0;
184 return 0;
185 }
186 if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
187 *(unsigned long *)opt->value = opt->defval;
188 return 0;
189 }
190 if (get_arg(p, opt, flags, &arg))
191 return -1;
192 if (!git_parse_ulong(arg, opt->value))
193 return opterror(opt,
194 "expects a non-negative integer value with an optional k/m/g suffix",
195 flags);
196 return 0;
197
4a59fd13
PH
198 default:
199 die("should not happen, someone must be hit on the forehead");
200 }
201}
202
7e7bbcb4 203static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
4a59fd13 204{
11588263 205 const struct option *all_opts = options;
e0319ff5
RS
206 const struct option *numopt = NULL;
207
4a59fd13
PH
208 for (; options->type != OPTION_END; options++) {
209 if (options->short_name == *p->opt) {
210 p->opt = p->opt[1] ? p->opt + 1 : NULL;
11588263 211 return get_value(p, options, all_opts, OPT_SHORT);
4a59fd13 212 }
e0319ff5
RS
213
214 /*
215 * Handle the numerical option later, explicit one-digit
216 * options take precedence over it.
217 */
218 if (options->type == OPTION_NUMBER)
219 numopt = options;
220 }
221 if (numopt && isdigit(*p->opt)) {
222 size_t len = 1;
223 char *arg;
224 int rc;
225
226 while (isdigit(p->opt[len]))
227 len++;
228 arg = xmemdupz(p->opt, len);
229 p->opt = p->opt[len] ? p->opt + len : NULL;
230 rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
231 free(arg);
232 return rc;
4a59fd13 233 }
07fe54db 234 return -2;
4a59fd13
PH
235}
236
7e7bbcb4 237static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
4a59fd13
PH
238 const struct option *options)
239{
11588263 240 const struct option *all_opts = options;
2c5495f7 241 const char *arg_end = strchrnul(arg, '=');
243e0614
JS
242 const struct option *abbrev_option = NULL, *ambiguous_option = NULL;
243 int abbrev_flags = 0, ambiguous_flags = 0;
7f275b91 244
4a59fd13 245 for (; options->type != OPTION_END; options++) {
0f1930c5
RS
246 const char *rest, *long_name = options->long_name;
247 int flags = 0, opt_flags = 0;
4a59fd13 248
0f1930c5 249 if (!long_name)
4a59fd13
PH
250 continue;
251
0f1930c5 252again:
cf4fff57
JK
253 if (!skip_prefix(arg, long_name, &rest))
254 rest = NULL;
580d5bff
PH
255 if (options->type == OPTION_ARGUMENT) {
256 if (!rest)
257 continue;
258 if (*rest == '=')
259 return opterror(options, "takes no value", flags);
260 if (*rest)
261 continue;
262 p->out[p->cpidx++] = arg - 2;
263 return 0;
264 }
4a59fd13 265 if (!rest) {
7f275b91 266 /* abbreviated? */
0f1930c5 267 if (!strncmp(long_name, arg, arg_end - arg)) {
7f275b91 268is_abbreviated:
243e0614
JS
269 if (abbrev_option) {
270 /*
271 * If this is abbreviated, it is
272 * ambiguous. So when there is no
273 * exact match later, we need to
274 * error out.
275 */
276 ambiguous_option = abbrev_option;
277 ambiguous_flags = abbrev_flags;
278 }
7f275b91
JS
279 if (!(flags & OPT_UNSET) && *arg_end)
280 p->opt = arg_end + 1;
281 abbrev_option = options;
0f1930c5 282 abbrev_flags = flags ^ opt_flags;
7f275b91
JS
283 continue;
284 }
6bbfd1fa
AS
285 /* negation allowed? */
286 if (options->flags & PARSE_OPT_NONEG)
287 continue;
7f275b91 288 /* negated and abbreviated very much? */
59556548 289 if (starts_with("no-", arg)) {
7f275b91
JS
290 flags |= OPT_UNSET;
291 goto is_abbreviated;
292 }
293 /* negated? */
59556548
CC
294 if (!starts_with(arg, "no-")) {
295 if (starts_with(long_name, "no-")) {
0f1930c5
RS
296 long_name += 3;
297 opt_flags |= OPT_UNSET;
298 goto again;
299 }
4a59fd13 300 continue;
0f1930c5 301 }
4a59fd13 302 flags |= OPT_UNSET;
cf4fff57
JK
303 if (!skip_prefix(arg + 3, long_name, &rest)) {
304 /* abbreviated and negated? */
305 if (starts_with(long_name, arg + 3))
306 goto is_abbreviated;
307 else
308 continue;
309 }
4a59fd13
PH
310 }
311 if (*rest) {
312 if (*rest != '=')
313 continue;
314 p->opt = rest + 1;
315 }
11588263 316 return get_value(p, options, all_opts, flags ^ opt_flags);
4a59fd13 317 }
243e0614
JS
318
319 if (ambiguous_option)
320 return error("Ambiguous option: %s "
321 "(could be --%s%s or --%s%s)",
322 arg,
323 (ambiguous_flags & OPT_UNSET) ? "no-" : "",
324 ambiguous_option->long_name,
325 (abbrev_flags & OPT_UNSET) ? "no-" : "",
326 abbrev_option->long_name);
7f275b91 327 if (abbrev_option)
11588263 328 return get_value(p, abbrev_option, all_opts, abbrev_flags);
07fe54db 329 return -2;
4a59fd13
PH
330}
331
51a9949e
RS
332static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
333 const struct option *options)
334{
11588263
JH
335 const struct option *all_opts = options;
336
51a9949e
RS
337 for (; options->type != OPTION_END; options++) {
338 if (!(options->flags & PARSE_OPT_NODASH))
339 continue;
51a9949e 340 if (options->short_name == arg[0] && arg[1] == '\0')
11588263 341 return get_value(p, options, all_opts, OPT_SHORT);
51a9949e
RS
342 }
343 return -2;
344}
345
1121a878 346static void check_typos(const char *arg, const struct option *options)
3a9f0f41
PH
347{
348 if (strlen(arg) < 3)
349 return;
350
59556548 351 if (starts_with(arg, "no-")) {
3a9f0f41
PH
352 error ("did you mean `--%s` (with two dashes ?)", arg);
353 exit(129);
354 }
355
356 for (; options->type != OPTION_END; options++) {
357 if (!options->long_name)
358 continue;
59556548 359 if (starts_with(options->long_name, arg)) {
3a9f0f41
PH
360 error ("did you mean `--%s` (with two dashes ?)", arg);
361 exit(129);
362 }
363 }
364}
365
cb9d398c
PH
366static void parse_options_check(const struct option *opts)
367{
368 int err = 0;
af465af8 369 char short_opts[128];
cb9d398c 370
af465af8 371 memset(short_opts, '\0', sizeof(short_opts));
cb9d398c
PH
372 for (; opts->type != OPTION_END; opts++) {
373 if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) &&
1e5ce570
JN
374 (opts->flags & PARSE_OPT_OPTARG))
375 err |= optbug(opts, "uses incompatible flags "
376 "LASTARG_DEFAULT and OPTARG");
af465af8
JH
377 if (opts->short_name) {
378 if (0x7F <= opts->short_name)
379 err |= optbug(opts, "invalid short name");
380 else if (short_opts[opts->short_name]++)
381 err |= optbug(opts, "short name already used");
382 }
a02dd4ff
JN
383 if (opts->flags & PARSE_OPT_NODASH &&
384 ((opts->flags & PARSE_OPT_OPTARG) ||
385 !(opts->flags & PARSE_OPT_NOARG) ||
386 !(opts->flags & PARSE_OPT_NONEG) ||
387 opts->long_name))
388 err |= optbug(opts, "uses feature "
389 "not supported for dashless options");
5c400ed2 390 switch (opts->type) {
b04ba2bb 391 case OPTION_COUNTUP:
5c400ed2
JN
392 case OPTION_BIT:
393 case OPTION_NEGBIT:
394 case OPTION_SET_INT:
5c400ed2
JN
395 case OPTION_NUMBER:
396 if ((opts->flags & PARSE_OPT_OPTARG) ||
397 !(opts->flags & PARSE_OPT_NOARG))
398 err |= optbug(opts, "should not accept an argument");
399 default:
400 ; /* ok. (usually accepts an argument) */
401 }
b6c2a0d4
JH
402 if (opts->argh &&
403 strcspn(opts->argh, " _") != strlen(opts->argh))
404 err |= optbug(opts, "multi-word argh should use dash to separate words");
cb9d398c 405 }
cb9d398c 406 if (err)
1e5ce570 407 exit(128);
cb9d398c
PH
408}
409
7e7bbcb4 410void parse_options_start(struct parse_opt_ctx_t *ctx,
37782920 411 int argc, const char **argv, const char *prefix,
9ca1169f 412 const struct option *options, int flags)
7e7bbcb4
PH
413{
414 memset(ctx, 0, sizeof(*ctx));
5ad0d3d5 415 ctx->argc = ctx->total = argc - 1;
7e7bbcb4
PH
416 ctx->argv = argv + 1;
417 ctx->out = argv;
37782920 418 ctx->prefix = prefix;
a32a4eaa 419 ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);
7e7bbcb4 420 ctx->flags = flags;
0d260f9a
RS
421 if ((flags & PARSE_OPT_KEEP_UNKNOWN) &&
422 (flags & PARSE_OPT_STOP_AT_NON_OPTION))
423 die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together");
9ca1169f 424 parse_options_check(options);
7e7bbcb4
PH
425}
426
47e9cd28
TR
427static int usage_with_options_internal(struct parse_opt_ctx_t *,
428 const char * const *,
9c7304e3 429 const struct option *, int, int);
dd3bf0f4 430
ff43ec3e
PH
431int parse_options_step(struct parse_opt_ctx_t *ctx,
432 const struct option *options,
433 const char * const usagestr[])
4a59fd13 434{
b92891f9 435 int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
ac20ff6d 436 int err = 0;
b92891f9 437
26141b5b
PH
438 /* we must reset ->opt, unknown short option leave it dangling */
439 ctx->opt = NULL;
440
ff43ec3e
PH
441 for (; ctx->argc; ctx->argc--, ctx->argv++) {
442 const char *arg = ctx->argv[0];
4a59fd13
PH
443
444 if (*arg != '-' || !arg[1]) {
51a9949e
RS
445 if (parse_nodash_opt(ctx, arg, options) == 0)
446 continue;
ff43ec3e 447 if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
979240fe 448 return PARSE_OPT_NON_OPTION;
ff43ec3e 449 ctx->out[ctx->cpidx++] = ctx->argv[0];
4a59fd13
PH
450 continue;
451 }
452
5ad0d3d5
RS
453 /* lone -h asks for help */
454 if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h"))
455 goto show_usage;
456
4a59fd13 457 if (arg[1] != '-') {
ff43ec3e 458 ctx->opt = arg + 1;
07fe54db
PH
459 switch (parse_short_opt(ctx, options)) {
460 case -1:
ac20ff6d 461 goto show_usage_error;
07fe54db 462 case -2:
38916c5b
RS
463 if (ctx->opt)
464 check_typos(arg + 1, options);
5ad0d3d5
RS
465 if (internal_help && *ctx->opt == 'h')
466 goto show_usage;
b5ce3a54 467 goto unknown;
07fe54db 468 }
ff43ec3e 469 if (ctx->opt)
3a9f0f41 470 check_typos(arg + 1, options);
ff43ec3e 471 while (ctx->opt) {
07fe54db
PH
472 switch (parse_short_opt(ctx, options)) {
473 case -1:
ac20ff6d 474 goto show_usage_error;
07fe54db 475 case -2:
5ad0d3d5
RS
476 if (internal_help && *ctx->opt == 'h')
477 goto show_usage;
478
26141b5b
PH
479 /* fake a short option thing to hide the fact that we may have
480 * started to parse aggregated stuff
481 *
482 * This is leaky, too bad.
483 */
484 ctx->argv[0] = xstrdup(ctx->opt - 1);
485 *(char *)ctx->argv[0] = '-';
b5ce3a54 486 goto unknown;
07fe54db 487 }
3a9f0f41 488 }
4a59fd13
PH
489 continue;
490 }
491
492 if (!arg[2]) { /* "--" */
ff43ec3e
PH
493 if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {
494 ctx->argc--;
495 ctx->argv++;
4a59fd13
PH
496 }
497 break;
498 }
499
b92891f9 500 if (internal_help && !strcmp(arg + 2, "help-all"))
47e9cd28 501 return usage_with_options_internal(ctx, usagestr, options, 1, 0);
b92891f9 502 if (internal_help && !strcmp(arg + 2, "help"))
ac20ff6d 503 goto show_usage;
07fe54db
PH
504 switch (parse_long_opt(ctx, arg + 2, options)) {
505 case -1:
ac20ff6d 506 goto show_usage_error;
07fe54db 507 case -2:
b5ce3a54 508 goto unknown;
07fe54db 509 }
b5ce3a54
RS
510 continue;
511unknown:
512 if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
513 return PARSE_OPT_UNKNOWN;
514 ctx->out[ctx->cpidx++] = ctx->argv[0];
515 ctx->opt = NULL;
ff43ec3e
PH
516 }
517 return PARSE_OPT_DONE;
ac20ff6d
RS
518
519 show_usage_error:
520 err = 1;
521 show_usage:
d3d1f8c4 522 return usage_with_options_internal(ctx, usagestr, options, 0, err);
ff43ec3e
PH
523}
524
525int parse_options_end(struct parse_opt_ctx_t *ctx)
526{
527 memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
528 ctx->out[ctx->cpidx + ctx->argc] = NULL;
529 return ctx->cpidx + ctx->argc;
530}
531
37782920
SB
532int parse_options(int argc, const char **argv, const char *prefix,
533 const struct option *options, const char * const usagestr[],
534 int flags)
ff43ec3e
PH
535{
536 struct parse_opt_ctx_t ctx;
537
9ca1169f 538 parse_options_start(&ctx, argc, argv, prefix, options, flags);
ff43ec3e
PH
539 switch (parse_options_step(&ctx, options, usagestr)) {
540 case PARSE_OPT_HELP:
541 exit(129);
979240fe 542 case PARSE_OPT_NON_OPTION:
ff43ec3e
PH
543 case PARSE_OPT_DONE:
544 break;
545 default: /* PARSE_OPT_UNKNOWN */
07fe54db
PH
546 if (ctx.argv[0][1] == '-') {
547 error("unknown option `%s'", ctx.argv[0] + 2);
b141a478 548 } else if (isascii(*ctx.opt)) {
07fe54db 549 error("unknown switch `%c'", *ctx.opt);
b141a478
EFL
550 } else {
551 error("unknown non-ascii option in string: `%s'",
552 ctx.argv[0]);
07fe54db
PH
553 }
554 usage_with_options(usagestr, options);
4a59fd13
PH
555 }
556
76759c7d 557 precompose_argv(argc, argv);
7e7bbcb4 558 return parse_options_end(&ctx);
4a59fd13 559}
d7a38c54 560
9c7304e3 561static int usage_argh(const struct option *opts, FILE *outfile)
29f25d49
SB
562{
563 const char *s;
34aec9f5 564 int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh;
29f25d49
SB
565 if (opts->flags & PARSE_OPT_OPTARG)
566 if (opts->long_name)
567 s = literal ? "[=%s]" : "[=<%s>]";
568 else
569 s = literal ? "[%s]" : "[<%s>]";
570 else
571 s = literal ? " %s" : " <%s>";
c0821965 572 return utf8_fprintf(outfile, s, opts->argh ? _(opts->argh) : _("..."));
29f25d49
SB
573}
574
d7a38c54
PH
575#define USAGE_OPTS_WIDTH 24
576#define USAGE_GAP 2
577
47e9cd28
TR
578static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
579 const char * const *usagestr,
580 const struct option *opts, int full, int err)
d7a38c54 581{
9c7304e3
GS
582 FILE *outfile = err ? stderr : stdout;
583
49b61802
RS
584 if (!usagestr)
585 return PARSE_OPT_HELP;
586
47e9cd28
TR
587 if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
588 fprintf(outfile, "cat <<\\EOF\n");
589
54e6dc7d 590 fprintf_ln(outfile, _("usage: %s"), _(*usagestr++));
f389c808 591 while (*usagestr && **usagestr)
54e6dc7d
NTND
592 /* TRANSLATORS: the colon here should align with the
593 one in "usage: %s" translation */
594 fprintf_ln(outfile, _(" or: %s"), _(*usagestr++));
44d86e91 595 while (*usagestr) {
54e6dc7d
NTND
596 if (**usagestr)
597 fprintf_ln(outfile, _(" %s"), _(*usagestr));
598 else
599 putchar('\n');
44d86e91
JK
600 usagestr++;
601 }
d7a38c54
PH
602
603 if (opts->type != OPTION_GROUP)
9c7304e3 604 fputc('\n', outfile);
d7a38c54
PH
605
606 for (; opts->type != OPTION_END; opts++) {
607 size_t pos;
608 int pad;
609
610 if (opts->type == OPTION_GROUP) {
9c7304e3 611 fputc('\n', outfile);
d7a38c54 612 if (*opts->help)
54e6dc7d 613 fprintf(outfile, "%s\n", _(opts->help));
d7a38c54
PH
614 continue;
615 }
dd3bf0f4
PH
616 if (!full && (opts->flags & PARSE_OPT_HIDDEN))
617 continue;
d7a38c54 618
9c7304e3 619 pos = fprintf(outfile, " ");
cbb08c2e 620 if (opts->short_name) {
51a9949e 621 if (opts->flags & PARSE_OPT_NODASH)
9c7304e3 622 pos += fprintf(outfile, "%c", opts->short_name);
51a9949e 623 else
9c7304e3 624 pos += fprintf(outfile, "-%c", opts->short_name);
51a9949e 625 }
d7a38c54 626 if (opts->long_name && opts->short_name)
9c7304e3 627 pos += fprintf(outfile, ", ");
d7a38c54 628 if (opts->long_name)
cbb08c2e 629 pos += fprintf(outfile, "--%s", opts->long_name);
e0319ff5 630 if (opts->type == OPTION_NUMBER)
c0821965 631 pos += utf8_fprintf(outfile, _("-NUM"));
d7a38c54 632
b57c68a6
JN
633 if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) ||
634 !(opts->flags & PARSE_OPT_NOARG))
9c7304e3 635 pos += usage_argh(opts, outfile);
d7a38c54 636
f389c808
AR
637 if (pos <= USAGE_OPTS_WIDTH)
638 pad = USAGE_OPTS_WIDTH - pos;
d7a38c54 639 else {
9c7304e3 640 fputc('\n', outfile);
d7a38c54
PH
641 pad = USAGE_OPTS_WIDTH;
642 }
54e6dc7d 643 fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help));
d7a38c54 644 }
9c7304e3 645 fputc('\n', outfile);
f389c808 646
47e9cd28
TR
647 if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
648 fputs("EOF\n", outfile);
649
ee68b87a 650 return PARSE_OPT_HELP;
d7a38c54 651}
0ce865b1 652
c2e86add 653void NORETURN usage_with_options(const char * const *usagestr,
ff43ec3e 654 const struct option *opts)
dd3bf0f4 655{
47e9cd28 656 usage_with_options_internal(NULL, usagestr, opts, 0, 1);
ff43ec3e 657 exit(129);
dd3bf0f4
PH
658}
659
c2e86add 660void NORETURN usage_msg_opt(const char *msg,
451bb210
CC
661 const char * const *usagestr,
662 const struct option *options)
663{
87433261 664 fprintf(stderr, "fatal: %s\n\n", msg);
451bb210
CC
665 usage_with_options(usagestr, options);
666}
667
a469a101
JK
668#undef opterror
669int opterror(const struct option *opt, const char *reason, int flags)
670{
671 if (flags & OPT_SHORT)
672 return error("switch `%c' %s", opt->short_name, reason);
673 if (flags & OPT_UNSET)
674 return error("option `no-%s' %s", opt->long_name, reason);
675 return error("option `%s' %s", opt->long_name, reason);
676}