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Commit | Line | Data |
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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" |
4a59fd13 | 6 | |
47e9cd28 TR |
7 | static int parse_options_usage(struct parse_opt_ctx_t *ctx, |
8 | const char * const *usagestr, | |
9c7304e3 | 9 | const struct option *opts, int err); |
41064ebc | 10 | |
4a59fd13 PH |
11 | #define OPT_SHORT 1 |
12 | #define OPT_UNSET 2 | |
13 | ||
1f275b7c | 14 | int optbug(const struct option *opt, const char *reason) |
1e5ce570 JN |
15 | { |
16 | if (opt->long_name) | |
17 | return error("BUG: option '%s' %s", opt->long_name, reason); | |
18 | return error("BUG: switch '%c' %s", opt->short_name, reason); | |
19 | } | |
20 | ||
1f275b7c | 21 | int opterror(const struct option *opt, const char *reason, int flags) |
4a59fd13 PH |
22 | { |
23 | if (flags & OPT_SHORT) | |
24 | return error("switch `%c' %s", opt->short_name, reason); | |
25 | if (flags & OPT_UNSET) | |
26 | return error("option `no-%s' %s", opt->long_name, reason); | |
27 | return error("option `%s' %s", opt->long_name, reason); | |
28 | } | |
29 | ||
1cc6985c PH |
30 | static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt, |
31 | int flags, const char **arg) | |
32 | { | |
33 | if (p->opt) { | |
34 | *arg = p->opt; | |
35 | p->opt = NULL; | |
36 | } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) { | |
37 | *arg = (const char *)opt->defval; | |
d5d745f9 | 38 | } else if (p->argc > 1) { |
1cc6985c PH |
39 | p->argc--; |
40 | *arg = *++p->argv; | |
41 | } else | |
42 | return opterror(opt, "requires a value", flags); | |
43 | return 0; | |
44 | } | |
45 | ||
df217ed6 SB |
46 | static void fix_filename(const char *prefix, const char **file) |
47 | { | |
48 | if (!file || !*file || !prefix || is_absolute_path(*file) | |
49 | || !strcmp("-", *file)) | |
50 | return; | |
51 | *file = xstrdup(prefix_filename(prefix, strlen(prefix), *file)); | |
52 | } | |
53 | ||
7e7bbcb4 | 54 | static int get_value(struct parse_opt_ctx_t *p, |
1cc6985c | 55 | const struct option *opt, int flags) |
4a59fd13 | 56 | { |
ffe659f9 | 57 | const char *s, *arg; |
db7244bd | 58 | const int unset = flags & OPT_UNSET; |
df217ed6 | 59 | int err; |
4a59fd13 | 60 | |
db7244bd | 61 | if (unset && p->opt) |
4a59fd13 | 62 | return opterror(opt, "takes no value", flags); |
db7244bd PH |
63 | if (unset && (opt->flags & PARSE_OPT_NONEG)) |
64 | return opterror(opt, "isn't available", flags); | |
c1f4ec9e SB |
65 | if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG)) |
66 | return opterror(opt, "takes no value", flags); | |
db7244bd | 67 | |
db7244bd | 68 | switch (opt->type) { |
b0b3a8b6 JN |
69 | case OPTION_LOWLEVEL_CALLBACK: |
70 | return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset); | |
71 | ||
db7244bd PH |
72 | case OPTION_BIT: |
73 | if (unset) | |
74 | *(int *)opt->value &= ~opt->defval; | |
4a59fd13 | 75 | else |
db7244bd PH |
76 | *(int *)opt->value |= opt->defval; |
77 | return 0; | |
78 | ||
2f4b97f9 RS |
79 | case OPTION_NEGBIT: |
80 | if (unset) | |
81 | *(int *)opt->value |= opt->defval; | |
82 | else | |
83 | *(int *)opt->value &= ~opt->defval; | |
84 | return 0; | |
85 | ||
db7244bd PH |
86 | case OPTION_BOOLEAN: |
87 | *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; | |
88 | return 0; | |
89 | ||
90 | case OPTION_SET_INT: | |
91 | *(int *)opt->value = unset ? 0 : opt->defval; | |
92 | return 0; | |
93 | ||
94 | case OPTION_SET_PTR: | |
95 | *(void **)opt->value = unset ? NULL : (void *)opt->defval; | |
4a59fd13 PH |
96 | return 0; |
97 | ||
98 | case OPTION_STRING: | |
1cc6985c | 99 | if (unset) |
db7244bd | 100 | *(const char **)opt->value = NULL; |
1cc6985c | 101 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
ffe659f9 | 102 | *(const char **)opt->value = (const char *)opt->defval; |
1cc6985c PH |
103 | else |
104 | return get_arg(p, opt, flags, (const char **)opt->value); | |
4a59fd13 PH |
105 | return 0; |
106 | ||
df217ed6 SB |
107 | case OPTION_FILENAME: |
108 | err = 0; | |
109 | if (unset) | |
110 | *(const char **)opt->value = NULL; | |
111 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
112 | *(const char **)opt->value = (const char *)opt->defval; | |
113 | else | |
114 | err = get_arg(p, opt, flags, (const char **)opt->value); | |
115 | ||
116 | if (!err) | |
117 | fix_filename(p->prefix, (const char **)opt->value); | |
118 | return err; | |
119 | ||
ffe659f9 | 120 | case OPTION_CALLBACK: |
db7244bd | 121 | if (unset) |
07fe54db | 122 | return (*opt->callback)(opt, NULL, 1) ? (-1) : 0; |
db7244bd | 123 | if (opt->flags & PARSE_OPT_NOARG) |
07fe54db | 124 | return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; |
c43a2483 | 125 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
07fe54db | 126 | return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; |
1cc6985c PH |
127 | if (get_arg(p, opt, flags, &arg)) |
128 | return -1; | |
129 | return (*opt->callback)(opt, arg, 0) ? (-1) : 0; | |
ffe659f9 | 130 | |
4a59fd13 | 131 | case OPTION_INTEGER: |
db7244bd | 132 | if (unset) { |
4a59fd13 PH |
133 | *(int *)opt->value = 0; |
134 | return 0; | |
135 | } | |
c43a2483 | 136 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { |
ffe659f9 PH |
137 | *(int *)opt->value = opt->defval; |
138 | return 0; | |
139 | } | |
1cc6985c PH |
140 | if (get_arg(p, opt, flags, &arg)) |
141 | return -1; | |
142 | *(int *)opt->value = strtol(arg, (char **)&s, 10); | |
4a59fd13 PH |
143 | if (*s) |
144 | return opterror(opt, "expects a numerical value", flags); | |
145 | return 0; | |
146 | ||
147 | default: | |
148 | die("should not happen, someone must be hit on the forehead"); | |
149 | } | |
150 | } | |
151 | ||
7e7bbcb4 | 152 | static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options) |
4a59fd13 | 153 | { |
e0319ff5 RS |
154 | const struct option *numopt = NULL; |
155 | ||
4a59fd13 PH |
156 | for (; options->type != OPTION_END; options++) { |
157 | if (options->short_name == *p->opt) { | |
158 | p->opt = p->opt[1] ? p->opt + 1 : NULL; | |
159 | return get_value(p, options, OPT_SHORT); | |
160 | } | |
e0319ff5 RS |
161 | |
162 | /* | |
163 | * Handle the numerical option later, explicit one-digit | |
164 | * options take precedence over it. | |
165 | */ | |
166 | if (options->type == OPTION_NUMBER) | |
167 | numopt = options; | |
168 | } | |
169 | if (numopt && isdigit(*p->opt)) { | |
170 | size_t len = 1; | |
171 | char *arg; | |
172 | int rc; | |
173 | ||
174 | while (isdigit(p->opt[len])) | |
175 | len++; | |
176 | arg = xmemdupz(p->opt, len); | |
177 | p->opt = p->opt[len] ? p->opt + len : NULL; | |
178 | rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; | |
179 | free(arg); | |
180 | return rc; | |
4a59fd13 | 181 | } |
07fe54db | 182 | return -2; |
4a59fd13 PH |
183 | } |
184 | ||
7e7bbcb4 | 185 | static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg, |
4a59fd13 PH |
186 | const struct option *options) |
187 | { | |
7f275b91 | 188 | const char *arg_end = strchr(arg, '='); |
243e0614 JS |
189 | const struct option *abbrev_option = NULL, *ambiguous_option = NULL; |
190 | int abbrev_flags = 0, ambiguous_flags = 0; | |
7f275b91 JS |
191 | |
192 | if (!arg_end) | |
193 | arg_end = arg + strlen(arg); | |
194 | ||
4a59fd13 PH |
195 | for (; options->type != OPTION_END; options++) { |
196 | const char *rest; | |
197 | int flags = 0; | |
198 | ||
199 | if (!options->long_name) | |
200 | continue; | |
201 | ||
202 | rest = skip_prefix(arg, options->long_name); | |
580d5bff PH |
203 | if (options->type == OPTION_ARGUMENT) { |
204 | if (!rest) | |
205 | continue; | |
206 | if (*rest == '=') | |
207 | return opterror(options, "takes no value", flags); | |
208 | if (*rest) | |
209 | continue; | |
210 | p->out[p->cpidx++] = arg - 2; | |
211 | return 0; | |
212 | } | |
4a59fd13 | 213 | if (!rest) { |
7f275b91 JS |
214 | /* abbreviated? */ |
215 | if (!strncmp(options->long_name, arg, arg_end - arg)) { | |
216 | is_abbreviated: | |
243e0614 JS |
217 | if (abbrev_option) { |
218 | /* | |
219 | * If this is abbreviated, it is | |
220 | * ambiguous. So when there is no | |
221 | * exact match later, we need to | |
222 | * error out. | |
223 | */ | |
224 | ambiguous_option = abbrev_option; | |
225 | ambiguous_flags = abbrev_flags; | |
226 | } | |
7f275b91 JS |
227 | if (!(flags & OPT_UNSET) && *arg_end) |
228 | p->opt = arg_end + 1; | |
229 | abbrev_option = options; | |
230 | abbrev_flags = flags; | |
231 | continue; | |
232 | } | |
6bbfd1fa AS |
233 | /* negation allowed? */ |
234 | if (options->flags & PARSE_OPT_NONEG) | |
235 | continue; | |
7f275b91 JS |
236 | /* negated and abbreviated very much? */ |
237 | if (!prefixcmp("no-", arg)) { | |
238 | flags |= OPT_UNSET; | |
239 | goto is_abbreviated; | |
240 | } | |
241 | /* negated? */ | |
4a59fd13 PH |
242 | if (strncmp(arg, "no-", 3)) |
243 | continue; | |
244 | flags |= OPT_UNSET; | |
245 | rest = skip_prefix(arg + 3, options->long_name); | |
7f275b91 JS |
246 | /* abbreviated and negated? */ |
247 | if (!rest && !prefixcmp(options->long_name, arg + 3)) | |
248 | goto is_abbreviated; | |
4a59fd13 PH |
249 | if (!rest) |
250 | continue; | |
251 | } | |
252 | if (*rest) { | |
253 | if (*rest != '=') | |
254 | continue; | |
255 | p->opt = rest + 1; | |
256 | } | |
257 | return get_value(p, options, flags); | |
258 | } | |
243e0614 JS |
259 | |
260 | if (ambiguous_option) | |
261 | return error("Ambiguous option: %s " | |
262 | "(could be --%s%s or --%s%s)", | |
263 | arg, | |
264 | (ambiguous_flags & OPT_UNSET) ? "no-" : "", | |
265 | ambiguous_option->long_name, | |
266 | (abbrev_flags & OPT_UNSET) ? "no-" : "", | |
267 | abbrev_option->long_name); | |
7f275b91 JS |
268 | if (abbrev_option) |
269 | return get_value(p, abbrev_option, abbrev_flags); | |
07fe54db | 270 | return -2; |
4a59fd13 PH |
271 | } |
272 | ||
51a9949e RS |
273 | static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, |
274 | const struct option *options) | |
275 | { | |
276 | for (; options->type != OPTION_END; options++) { | |
277 | if (!(options->flags & PARSE_OPT_NODASH)) | |
278 | continue; | |
51a9949e RS |
279 | if (options->short_name == arg[0] && arg[1] == '\0') |
280 | return get_value(p, options, OPT_SHORT); | |
281 | } | |
282 | return -2; | |
283 | } | |
284 | ||
1121a878 | 285 | static void check_typos(const char *arg, const struct option *options) |
3a9f0f41 PH |
286 | { |
287 | if (strlen(arg) < 3) | |
288 | return; | |
289 | ||
290 | if (!prefixcmp(arg, "no-")) { | |
291 | error ("did you mean `--%s` (with two dashes ?)", arg); | |
292 | exit(129); | |
293 | } | |
294 | ||
295 | for (; options->type != OPTION_END; options++) { | |
296 | if (!options->long_name) | |
297 | continue; | |
298 | if (!prefixcmp(options->long_name, arg)) { | |
299 | error ("did you mean `--%s` (with two dashes ?)", arg); | |
300 | exit(129); | |
301 | } | |
302 | } | |
303 | } | |
304 | ||
cb9d398c PH |
305 | static void parse_options_check(const struct option *opts) |
306 | { | |
307 | int err = 0; | |
308 | ||
309 | for (; opts->type != OPTION_END; opts++) { | |
310 | if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && | |
1e5ce570 JN |
311 | (opts->flags & PARSE_OPT_OPTARG)) |
312 | err |= optbug(opts, "uses incompatible flags " | |
313 | "LASTARG_DEFAULT and OPTARG"); | |
a02dd4ff JN |
314 | if (opts->flags & PARSE_OPT_NODASH && |
315 | ((opts->flags & PARSE_OPT_OPTARG) || | |
316 | !(opts->flags & PARSE_OPT_NOARG) || | |
317 | !(opts->flags & PARSE_OPT_NONEG) || | |
318 | opts->long_name)) | |
319 | err |= optbug(opts, "uses feature " | |
320 | "not supported for dashless options"); | |
5c400ed2 JN |
321 | switch (opts->type) { |
322 | case OPTION_BOOLEAN: | |
323 | case OPTION_BIT: | |
324 | case OPTION_NEGBIT: | |
325 | case OPTION_SET_INT: | |
326 | case OPTION_SET_PTR: | |
327 | case OPTION_NUMBER: | |
328 | if ((opts->flags & PARSE_OPT_OPTARG) || | |
329 | !(opts->flags & PARSE_OPT_NOARG)) | |
330 | err |= optbug(opts, "should not accept an argument"); | |
331 | default: | |
332 | ; /* ok. (usually accepts an argument) */ | |
333 | } | |
cb9d398c | 334 | } |
cb9d398c | 335 | if (err) |
1e5ce570 | 336 | exit(128); |
cb9d398c PH |
337 | } |
338 | ||
7e7bbcb4 | 339 | void parse_options_start(struct parse_opt_ctx_t *ctx, |
37782920 | 340 | int argc, const char **argv, const char *prefix, |
9ca1169f | 341 | const struct option *options, int flags) |
7e7bbcb4 PH |
342 | { |
343 | memset(ctx, 0, sizeof(*ctx)); | |
344 | ctx->argc = argc - 1; | |
345 | ctx->argv = argv + 1; | |
346 | ctx->out = argv; | |
37782920 | 347 | ctx->prefix = prefix; |
a32a4eaa | 348 | ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); |
7e7bbcb4 | 349 | ctx->flags = flags; |
0d260f9a RS |
350 | if ((flags & PARSE_OPT_KEEP_UNKNOWN) && |
351 | (flags & PARSE_OPT_STOP_AT_NON_OPTION)) | |
352 | die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); | |
9ca1169f | 353 | parse_options_check(options); |
7e7bbcb4 PH |
354 | } |
355 | ||
47e9cd28 TR |
356 | static int usage_with_options_internal(struct parse_opt_ctx_t *, |
357 | const char * const *, | |
9c7304e3 | 358 | const struct option *, int, int); |
dd3bf0f4 | 359 | |
ff43ec3e PH |
360 | int parse_options_step(struct parse_opt_ctx_t *ctx, |
361 | const struct option *options, | |
362 | const char * const usagestr[]) | |
4a59fd13 | 363 | { |
b92891f9 RS |
364 | int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); |
365 | ||
26141b5b PH |
366 | /* we must reset ->opt, unknown short option leave it dangling */ |
367 | ctx->opt = NULL; | |
368 | ||
ff43ec3e PH |
369 | for (; ctx->argc; ctx->argc--, ctx->argv++) { |
370 | const char *arg = ctx->argv[0]; | |
4a59fd13 PH |
371 | |
372 | if (*arg != '-' || !arg[1]) { | |
51a9949e RS |
373 | if (parse_nodash_opt(ctx, arg, options) == 0) |
374 | continue; | |
ff43ec3e | 375 | if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) |
979240fe | 376 | return PARSE_OPT_NON_OPTION; |
ff43ec3e | 377 | ctx->out[ctx->cpidx++] = ctx->argv[0]; |
4a59fd13 PH |
378 | continue; |
379 | } | |
380 | ||
381 | if (arg[1] != '-') { | |
ff43ec3e | 382 | ctx->opt = arg + 1; |
b92891f9 | 383 | if (internal_help && *ctx->opt == 'h') |
47e9cd28 | 384 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
385 | switch (parse_short_opt(ctx, options)) { |
386 | case -1: | |
47e9cd28 | 387 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 388 | case -2: |
b5ce3a54 | 389 | goto unknown; |
07fe54db | 390 | } |
ff43ec3e | 391 | if (ctx->opt) |
3a9f0f41 | 392 | check_typos(arg + 1, options); |
ff43ec3e | 393 | while (ctx->opt) { |
b92891f9 | 394 | if (internal_help && *ctx->opt == 'h') |
47e9cd28 | 395 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
396 | switch (parse_short_opt(ctx, options)) { |
397 | case -1: | |
47e9cd28 | 398 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 399 | case -2: |
26141b5b PH |
400 | /* fake a short option thing to hide the fact that we may have |
401 | * started to parse aggregated stuff | |
402 | * | |
403 | * This is leaky, too bad. | |
404 | */ | |
405 | ctx->argv[0] = xstrdup(ctx->opt - 1); | |
406 | *(char *)ctx->argv[0] = '-'; | |
b5ce3a54 | 407 | goto unknown; |
07fe54db | 408 | } |
3a9f0f41 | 409 | } |
4a59fd13 PH |
410 | continue; |
411 | } | |
412 | ||
413 | if (!arg[2]) { /* "--" */ | |
ff43ec3e PH |
414 | if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { |
415 | ctx->argc--; | |
416 | ctx->argv++; | |
4a59fd13 PH |
417 | } |
418 | break; | |
419 | } | |
420 | ||
b92891f9 | 421 | if (internal_help && !strcmp(arg + 2, "help-all")) |
47e9cd28 | 422 | return usage_with_options_internal(ctx, usagestr, options, 1, 0); |
b92891f9 | 423 | if (internal_help && !strcmp(arg + 2, "help")) |
47e9cd28 | 424 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
425 | switch (parse_long_opt(ctx, arg + 2, options)) { |
426 | case -1: | |
47e9cd28 | 427 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 428 | case -2: |
b5ce3a54 | 429 | goto unknown; |
07fe54db | 430 | } |
b5ce3a54 RS |
431 | continue; |
432 | unknown: | |
433 | if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) | |
434 | return PARSE_OPT_UNKNOWN; | |
435 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
436 | ctx->opt = NULL; | |
ff43ec3e PH |
437 | } |
438 | return PARSE_OPT_DONE; | |
439 | } | |
440 | ||
441 | int parse_options_end(struct parse_opt_ctx_t *ctx) | |
442 | { | |
443 | memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out)); | |
444 | ctx->out[ctx->cpidx + ctx->argc] = NULL; | |
445 | return ctx->cpidx + ctx->argc; | |
446 | } | |
447 | ||
37782920 SB |
448 | int parse_options(int argc, const char **argv, const char *prefix, |
449 | const struct option *options, const char * const usagestr[], | |
450 | int flags) | |
ff43ec3e PH |
451 | { |
452 | struct parse_opt_ctx_t ctx; | |
453 | ||
9ca1169f | 454 | parse_options_start(&ctx, argc, argv, prefix, options, flags); |
ff43ec3e PH |
455 | switch (parse_options_step(&ctx, options, usagestr)) { |
456 | case PARSE_OPT_HELP: | |
457 | exit(129); | |
979240fe | 458 | case PARSE_OPT_NON_OPTION: |
ff43ec3e PH |
459 | case PARSE_OPT_DONE: |
460 | break; | |
461 | default: /* PARSE_OPT_UNKNOWN */ | |
07fe54db PH |
462 | if (ctx.argv[0][1] == '-') { |
463 | error("unknown option `%s'", ctx.argv[0] + 2); | |
464 | } else { | |
465 | error("unknown switch `%c'", *ctx.opt); | |
466 | } | |
467 | usage_with_options(usagestr, options); | |
4a59fd13 PH |
468 | } |
469 | ||
7e7bbcb4 | 470 | return parse_options_end(&ctx); |
4a59fd13 | 471 | } |
d7a38c54 | 472 | |
9c7304e3 | 473 | static int usage_argh(const struct option *opts, FILE *outfile) |
29f25d49 SB |
474 | { |
475 | const char *s; | |
34aec9f5 | 476 | int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh; |
29f25d49 SB |
477 | if (opts->flags & PARSE_OPT_OPTARG) |
478 | if (opts->long_name) | |
479 | s = literal ? "[=%s]" : "[=<%s>]"; | |
480 | else | |
481 | s = literal ? "[%s]" : "[<%s>]"; | |
482 | else | |
483 | s = literal ? " %s" : " <%s>"; | |
9c7304e3 | 484 | return fprintf(outfile, s, opts->argh ? opts->argh : "..."); |
29f25d49 SB |
485 | } |
486 | ||
d7a38c54 PH |
487 | #define USAGE_OPTS_WIDTH 24 |
488 | #define USAGE_GAP 2 | |
489 | ||
47e9cd28 TR |
490 | static int usage_with_options_internal(struct parse_opt_ctx_t *ctx, |
491 | const char * const *usagestr, | |
492 | const struct option *opts, int full, int err) | |
d7a38c54 | 493 | { |
9c7304e3 GS |
494 | FILE *outfile = err ? stderr : stdout; |
495 | ||
49b61802 RS |
496 | if (!usagestr) |
497 | return PARSE_OPT_HELP; | |
498 | ||
47e9cd28 TR |
499 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
500 | fprintf(outfile, "cat <<\\EOF\n"); | |
501 | ||
9c7304e3 | 502 | fprintf(outfile, "usage: %s\n", *usagestr++); |
f389c808 | 503 | while (*usagestr && **usagestr) |
9c7304e3 | 504 | fprintf(outfile, " or: %s\n", *usagestr++); |
44d86e91 | 505 | while (*usagestr) { |
9c7304e3 | 506 | fprintf(outfile, "%s%s\n", |
44d86e91 JK |
507 | **usagestr ? " " : "", |
508 | *usagestr); | |
509 | usagestr++; | |
510 | } | |
d7a38c54 PH |
511 | |
512 | if (opts->type != OPTION_GROUP) | |
9c7304e3 | 513 | fputc('\n', outfile); |
d7a38c54 PH |
514 | |
515 | for (; opts->type != OPTION_END; opts++) { | |
516 | size_t pos; | |
517 | int pad; | |
518 | ||
519 | if (opts->type == OPTION_GROUP) { | |
9c7304e3 | 520 | fputc('\n', outfile); |
d7a38c54 | 521 | if (*opts->help) |
9c7304e3 | 522 | fprintf(outfile, "%s\n", opts->help); |
d7a38c54 PH |
523 | continue; |
524 | } | |
dd3bf0f4 PH |
525 | if (!full && (opts->flags & PARSE_OPT_HIDDEN)) |
526 | continue; | |
d7a38c54 | 527 | |
9c7304e3 | 528 | pos = fprintf(outfile, " "); |
86b5efb2 | 529 | if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) { |
51a9949e | 530 | if (opts->flags & PARSE_OPT_NODASH) |
9c7304e3 | 531 | pos += fprintf(outfile, "%c", opts->short_name); |
51a9949e | 532 | else |
9c7304e3 | 533 | pos += fprintf(outfile, "-%c", opts->short_name); |
51a9949e | 534 | } |
d7a38c54 | 535 | if (opts->long_name && opts->short_name) |
9c7304e3 | 536 | pos += fprintf(outfile, ", "); |
d7a38c54 | 537 | if (opts->long_name) |
9c7304e3 | 538 | pos += fprintf(outfile, "--%s%s", |
86b5efb2 JS |
539 | (opts->flags & PARSE_OPT_NEGHELP) ? "no-" : "", |
540 | opts->long_name); | |
e0319ff5 | 541 | if (opts->type == OPTION_NUMBER) |
9c7304e3 | 542 | pos += fprintf(outfile, "-NUM"); |
d7a38c54 | 543 | |
b57c68a6 JN |
544 | if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
545 | !(opts->flags & PARSE_OPT_NOARG)) | |
9c7304e3 | 546 | pos += usage_argh(opts, outfile); |
d7a38c54 | 547 | |
f389c808 AR |
548 | if (pos <= USAGE_OPTS_WIDTH) |
549 | pad = USAGE_OPTS_WIDTH - pos; | |
d7a38c54 | 550 | else { |
9c7304e3 | 551 | fputc('\n', outfile); |
d7a38c54 PH |
552 | pad = USAGE_OPTS_WIDTH; |
553 | } | |
9c7304e3 | 554 | fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", opts->help); |
d7a38c54 | 555 | } |
9c7304e3 | 556 | fputc('\n', outfile); |
f389c808 | 557 | |
47e9cd28 TR |
558 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
559 | fputs("EOF\n", outfile); | |
560 | ||
ee68b87a | 561 | return PARSE_OPT_HELP; |
d7a38c54 | 562 | } |
0ce865b1 | 563 | |
c2e86add | 564 | void NORETURN usage_with_options(const char * const *usagestr, |
ff43ec3e | 565 | const struct option *opts) |
dd3bf0f4 | 566 | { |
47e9cd28 | 567 | usage_with_options_internal(NULL, usagestr, opts, 0, 1); |
ff43ec3e | 568 | exit(129); |
dd3bf0f4 PH |
569 | } |
570 | ||
c2e86add | 571 | void NORETURN usage_msg_opt(const char *msg, |
451bb210 CC |
572 | const char * const *usagestr, |
573 | const struct option *options) | |
574 | { | |
575 | fprintf(stderr, "%s\n\n", msg); | |
576 | usage_with_options(usagestr, options); | |
577 | } | |
578 | ||
47e9cd28 TR |
579 | static int parse_options_usage(struct parse_opt_ctx_t *ctx, |
580 | const char * const *usagestr, | |
9c7304e3 | 581 | const struct option *opts, int err) |
ee68b87a | 582 | { |
47e9cd28 | 583 | return usage_with_options_internal(ctx, usagestr, opts, 0, err); |
ee68b87a PH |
584 | } |
585 |