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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 | ||
b04ba2bb | 86 | case OPTION_COUNTUP: |
db7244bd PH |
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 | 195 | for (; options->type != OPTION_END; options++) { |
0f1930c5 RS |
196 | const char *rest, *long_name = options->long_name; |
197 | int flags = 0, opt_flags = 0; | |
4a59fd13 | 198 | |
0f1930c5 | 199 | if (!long_name) |
4a59fd13 PH |
200 | continue; |
201 | ||
0f1930c5 RS |
202 | again: |
203 | rest = skip_prefix(arg, long_name); | |
580d5bff PH |
204 | if (options->type == OPTION_ARGUMENT) { |
205 | if (!rest) | |
206 | continue; | |
207 | if (*rest == '=') | |
208 | return opterror(options, "takes no value", flags); | |
209 | if (*rest) | |
210 | continue; | |
211 | p->out[p->cpidx++] = arg - 2; | |
212 | return 0; | |
213 | } | |
4a59fd13 | 214 | if (!rest) { |
7f275b91 | 215 | /* abbreviated? */ |
0f1930c5 | 216 | if (!strncmp(long_name, arg, arg_end - arg)) { |
7f275b91 | 217 | is_abbreviated: |
243e0614 JS |
218 | if (abbrev_option) { |
219 | /* | |
220 | * If this is abbreviated, it is | |
221 | * ambiguous. So when there is no | |
222 | * exact match later, we need to | |
223 | * error out. | |
224 | */ | |
225 | ambiguous_option = abbrev_option; | |
226 | ambiguous_flags = abbrev_flags; | |
227 | } | |
7f275b91 JS |
228 | if (!(flags & OPT_UNSET) && *arg_end) |
229 | p->opt = arg_end + 1; | |
230 | abbrev_option = options; | |
0f1930c5 | 231 | abbrev_flags = flags ^ opt_flags; |
7f275b91 JS |
232 | continue; |
233 | } | |
6bbfd1fa AS |
234 | /* negation allowed? */ |
235 | if (options->flags & PARSE_OPT_NONEG) | |
236 | continue; | |
7f275b91 JS |
237 | /* negated and abbreviated very much? */ |
238 | if (!prefixcmp("no-", arg)) { | |
239 | flags |= OPT_UNSET; | |
240 | goto is_abbreviated; | |
241 | } | |
242 | /* negated? */ | |
0f1930c5 RS |
243 | if (prefixcmp(arg, "no-")) { |
244 | if (!prefixcmp(long_name, "no-")) { | |
245 | long_name += 3; | |
246 | opt_flags |= OPT_UNSET; | |
247 | goto again; | |
248 | } | |
4a59fd13 | 249 | continue; |
0f1930c5 | 250 | } |
4a59fd13 | 251 | flags |= OPT_UNSET; |
0f1930c5 | 252 | rest = skip_prefix(arg + 3, long_name); |
7f275b91 | 253 | /* abbreviated and negated? */ |
0f1930c5 | 254 | if (!rest && !prefixcmp(long_name, arg + 3)) |
7f275b91 | 255 | goto is_abbreviated; |
4a59fd13 PH |
256 | if (!rest) |
257 | continue; | |
258 | } | |
259 | if (*rest) { | |
260 | if (*rest != '=') | |
261 | continue; | |
262 | p->opt = rest + 1; | |
263 | } | |
0f1930c5 | 264 | return get_value(p, options, flags ^ opt_flags); |
4a59fd13 | 265 | } |
243e0614 JS |
266 | |
267 | if (ambiguous_option) | |
268 | return error("Ambiguous option: %s " | |
269 | "(could be --%s%s or --%s%s)", | |
270 | arg, | |
271 | (ambiguous_flags & OPT_UNSET) ? "no-" : "", | |
272 | ambiguous_option->long_name, | |
273 | (abbrev_flags & OPT_UNSET) ? "no-" : "", | |
274 | abbrev_option->long_name); | |
7f275b91 JS |
275 | if (abbrev_option) |
276 | return get_value(p, abbrev_option, abbrev_flags); | |
07fe54db | 277 | return -2; |
4a59fd13 PH |
278 | } |
279 | ||
51a9949e RS |
280 | static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, |
281 | const struct option *options) | |
282 | { | |
283 | for (; options->type != OPTION_END; options++) { | |
284 | if (!(options->flags & PARSE_OPT_NODASH)) | |
285 | continue; | |
51a9949e RS |
286 | if (options->short_name == arg[0] && arg[1] == '\0') |
287 | return get_value(p, options, OPT_SHORT); | |
288 | } | |
289 | return -2; | |
290 | } | |
291 | ||
1121a878 | 292 | static void check_typos(const char *arg, const struct option *options) |
3a9f0f41 PH |
293 | { |
294 | if (strlen(arg) < 3) | |
295 | return; | |
296 | ||
297 | if (!prefixcmp(arg, "no-")) { | |
298 | error ("did you mean `--%s` (with two dashes ?)", arg); | |
299 | exit(129); | |
300 | } | |
301 | ||
302 | for (; options->type != OPTION_END; options++) { | |
303 | if (!options->long_name) | |
304 | continue; | |
305 | if (!prefixcmp(options->long_name, arg)) { | |
306 | error ("did you mean `--%s` (with two dashes ?)", arg); | |
307 | exit(129); | |
308 | } | |
309 | } | |
310 | } | |
311 | ||
cb9d398c PH |
312 | static void parse_options_check(const struct option *opts) |
313 | { | |
314 | int err = 0; | |
315 | ||
316 | for (; opts->type != OPTION_END; opts++) { | |
317 | if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && | |
1e5ce570 JN |
318 | (opts->flags & PARSE_OPT_OPTARG)) |
319 | err |= optbug(opts, "uses incompatible flags " | |
320 | "LASTARG_DEFAULT and OPTARG"); | |
a02dd4ff JN |
321 | if (opts->flags & PARSE_OPT_NODASH && |
322 | ((opts->flags & PARSE_OPT_OPTARG) || | |
323 | !(opts->flags & PARSE_OPT_NOARG) || | |
324 | !(opts->flags & PARSE_OPT_NONEG) || | |
325 | opts->long_name)) | |
326 | err |= optbug(opts, "uses feature " | |
327 | "not supported for dashless options"); | |
5c400ed2 | 328 | switch (opts->type) { |
b04ba2bb | 329 | case OPTION_COUNTUP: |
5c400ed2 JN |
330 | case OPTION_BIT: |
331 | case OPTION_NEGBIT: | |
332 | case OPTION_SET_INT: | |
333 | case OPTION_SET_PTR: | |
334 | case OPTION_NUMBER: | |
335 | if ((opts->flags & PARSE_OPT_OPTARG) || | |
336 | !(opts->flags & PARSE_OPT_NOARG)) | |
337 | err |= optbug(opts, "should not accept an argument"); | |
338 | default: | |
339 | ; /* ok. (usually accepts an argument) */ | |
340 | } | |
cb9d398c | 341 | } |
cb9d398c | 342 | if (err) |
1e5ce570 | 343 | exit(128); |
cb9d398c PH |
344 | } |
345 | ||
7e7bbcb4 | 346 | void parse_options_start(struct parse_opt_ctx_t *ctx, |
37782920 | 347 | int argc, const char **argv, const char *prefix, |
9ca1169f | 348 | const struct option *options, int flags) |
7e7bbcb4 PH |
349 | { |
350 | memset(ctx, 0, sizeof(*ctx)); | |
351 | ctx->argc = argc - 1; | |
352 | ctx->argv = argv + 1; | |
353 | ctx->out = argv; | |
37782920 | 354 | ctx->prefix = prefix; |
a32a4eaa | 355 | ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); |
7e7bbcb4 | 356 | ctx->flags = flags; |
0d260f9a RS |
357 | if ((flags & PARSE_OPT_KEEP_UNKNOWN) && |
358 | (flags & PARSE_OPT_STOP_AT_NON_OPTION)) | |
359 | die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); | |
9ca1169f | 360 | parse_options_check(options); |
7e7bbcb4 PH |
361 | } |
362 | ||
47e9cd28 TR |
363 | static int usage_with_options_internal(struct parse_opt_ctx_t *, |
364 | const char * const *, | |
9c7304e3 | 365 | const struct option *, int, int); |
dd3bf0f4 | 366 | |
ff43ec3e PH |
367 | int parse_options_step(struct parse_opt_ctx_t *ctx, |
368 | const struct option *options, | |
369 | const char * const usagestr[]) | |
4a59fd13 | 370 | { |
b92891f9 RS |
371 | int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); |
372 | ||
26141b5b PH |
373 | /* we must reset ->opt, unknown short option leave it dangling */ |
374 | ctx->opt = NULL; | |
375 | ||
ff43ec3e PH |
376 | for (; ctx->argc; ctx->argc--, ctx->argv++) { |
377 | const char *arg = ctx->argv[0]; | |
4a59fd13 PH |
378 | |
379 | if (*arg != '-' || !arg[1]) { | |
51a9949e RS |
380 | if (parse_nodash_opt(ctx, arg, options) == 0) |
381 | continue; | |
ff43ec3e | 382 | if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) |
979240fe | 383 | return PARSE_OPT_NON_OPTION; |
ff43ec3e | 384 | ctx->out[ctx->cpidx++] = ctx->argv[0]; |
4a59fd13 PH |
385 | continue; |
386 | } | |
387 | ||
388 | if (arg[1] != '-') { | |
ff43ec3e | 389 | ctx->opt = arg + 1; |
b92891f9 | 390 | if (internal_help && *ctx->opt == 'h') |
47e9cd28 | 391 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
392 | switch (parse_short_opt(ctx, options)) { |
393 | case -1: | |
47e9cd28 | 394 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 395 | case -2: |
38916c5b RS |
396 | if (ctx->opt) |
397 | check_typos(arg + 1, options); | |
b5ce3a54 | 398 | goto unknown; |
07fe54db | 399 | } |
ff43ec3e | 400 | if (ctx->opt) |
3a9f0f41 | 401 | check_typos(arg + 1, options); |
ff43ec3e | 402 | while (ctx->opt) { |
b92891f9 | 403 | if (internal_help && *ctx->opt == 'h') |
47e9cd28 | 404 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
405 | switch (parse_short_opt(ctx, options)) { |
406 | case -1: | |
47e9cd28 | 407 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 408 | case -2: |
26141b5b PH |
409 | /* fake a short option thing to hide the fact that we may have |
410 | * started to parse aggregated stuff | |
411 | * | |
412 | * This is leaky, too bad. | |
413 | */ | |
414 | ctx->argv[0] = xstrdup(ctx->opt - 1); | |
415 | *(char *)ctx->argv[0] = '-'; | |
b5ce3a54 | 416 | goto unknown; |
07fe54db | 417 | } |
3a9f0f41 | 418 | } |
4a59fd13 PH |
419 | continue; |
420 | } | |
421 | ||
422 | if (!arg[2]) { /* "--" */ | |
ff43ec3e PH |
423 | if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { |
424 | ctx->argc--; | |
425 | ctx->argv++; | |
4a59fd13 PH |
426 | } |
427 | break; | |
428 | } | |
429 | ||
b92891f9 | 430 | if (internal_help && !strcmp(arg + 2, "help-all")) |
47e9cd28 | 431 | return usage_with_options_internal(ctx, usagestr, options, 1, 0); |
b92891f9 | 432 | if (internal_help && !strcmp(arg + 2, "help")) |
47e9cd28 | 433 | return parse_options_usage(ctx, usagestr, options, 0); |
07fe54db PH |
434 | switch (parse_long_opt(ctx, arg + 2, options)) { |
435 | case -1: | |
47e9cd28 | 436 | return parse_options_usage(ctx, usagestr, options, 1); |
07fe54db | 437 | case -2: |
b5ce3a54 | 438 | goto unknown; |
07fe54db | 439 | } |
b5ce3a54 RS |
440 | continue; |
441 | unknown: | |
442 | if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) | |
443 | return PARSE_OPT_UNKNOWN; | |
444 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
445 | ctx->opt = NULL; | |
ff43ec3e PH |
446 | } |
447 | return PARSE_OPT_DONE; | |
448 | } | |
449 | ||
450 | int parse_options_end(struct parse_opt_ctx_t *ctx) | |
451 | { | |
452 | memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out)); | |
453 | ctx->out[ctx->cpidx + ctx->argc] = NULL; | |
454 | return ctx->cpidx + ctx->argc; | |
455 | } | |
456 | ||
37782920 SB |
457 | int parse_options(int argc, const char **argv, const char *prefix, |
458 | const struct option *options, const char * const usagestr[], | |
459 | int flags) | |
ff43ec3e PH |
460 | { |
461 | struct parse_opt_ctx_t ctx; | |
462 | ||
9ca1169f | 463 | parse_options_start(&ctx, argc, argv, prefix, options, flags); |
ff43ec3e PH |
464 | switch (parse_options_step(&ctx, options, usagestr)) { |
465 | case PARSE_OPT_HELP: | |
466 | exit(129); | |
979240fe | 467 | case PARSE_OPT_NON_OPTION: |
ff43ec3e PH |
468 | case PARSE_OPT_DONE: |
469 | break; | |
470 | default: /* PARSE_OPT_UNKNOWN */ | |
07fe54db PH |
471 | if (ctx.argv[0][1] == '-') { |
472 | error("unknown option `%s'", ctx.argv[0] + 2); | |
473 | } else { | |
474 | error("unknown switch `%c'", *ctx.opt); | |
475 | } | |
476 | usage_with_options(usagestr, options); | |
4a59fd13 PH |
477 | } |
478 | ||
7e7bbcb4 | 479 | return parse_options_end(&ctx); |
4a59fd13 | 480 | } |
d7a38c54 | 481 | |
9c7304e3 | 482 | static int usage_argh(const struct option *opts, FILE *outfile) |
29f25d49 SB |
483 | { |
484 | const char *s; | |
34aec9f5 | 485 | int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh; |
29f25d49 SB |
486 | if (opts->flags & PARSE_OPT_OPTARG) |
487 | if (opts->long_name) | |
488 | s = literal ? "[=%s]" : "[=<%s>]"; | |
489 | else | |
490 | s = literal ? "[%s]" : "[<%s>]"; | |
491 | else | |
492 | s = literal ? " %s" : " <%s>"; | |
9c7304e3 | 493 | return fprintf(outfile, s, opts->argh ? opts->argh : "..."); |
29f25d49 SB |
494 | } |
495 | ||
d7a38c54 PH |
496 | #define USAGE_OPTS_WIDTH 24 |
497 | #define USAGE_GAP 2 | |
498 | ||
47e9cd28 TR |
499 | static int usage_with_options_internal(struct parse_opt_ctx_t *ctx, |
500 | const char * const *usagestr, | |
501 | const struct option *opts, int full, int err) | |
d7a38c54 | 502 | { |
9c7304e3 GS |
503 | FILE *outfile = err ? stderr : stdout; |
504 | ||
49b61802 RS |
505 | if (!usagestr) |
506 | return PARSE_OPT_HELP; | |
507 | ||
47e9cd28 TR |
508 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
509 | fprintf(outfile, "cat <<\\EOF\n"); | |
510 | ||
9c7304e3 | 511 | fprintf(outfile, "usage: %s\n", *usagestr++); |
f389c808 | 512 | while (*usagestr && **usagestr) |
9c7304e3 | 513 | fprintf(outfile, " or: %s\n", *usagestr++); |
44d86e91 | 514 | while (*usagestr) { |
9c7304e3 | 515 | fprintf(outfile, "%s%s\n", |
44d86e91 JK |
516 | **usagestr ? " " : "", |
517 | *usagestr); | |
518 | usagestr++; | |
519 | } | |
d7a38c54 PH |
520 | |
521 | if (opts->type != OPTION_GROUP) | |
9c7304e3 | 522 | fputc('\n', outfile); |
d7a38c54 PH |
523 | |
524 | for (; opts->type != OPTION_END; opts++) { | |
525 | size_t pos; | |
526 | int pad; | |
527 | ||
528 | if (opts->type == OPTION_GROUP) { | |
9c7304e3 | 529 | fputc('\n', outfile); |
d7a38c54 | 530 | if (*opts->help) |
9c7304e3 | 531 | fprintf(outfile, "%s\n", opts->help); |
d7a38c54 PH |
532 | continue; |
533 | } | |
dd3bf0f4 PH |
534 | if (!full && (opts->flags & PARSE_OPT_HIDDEN)) |
535 | continue; | |
d7a38c54 | 536 | |
9c7304e3 | 537 | pos = fprintf(outfile, " "); |
cbb08c2e | 538 | if (opts->short_name) { |
51a9949e | 539 | if (opts->flags & PARSE_OPT_NODASH) |
9c7304e3 | 540 | pos += fprintf(outfile, "%c", opts->short_name); |
51a9949e | 541 | else |
9c7304e3 | 542 | pos += fprintf(outfile, "-%c", opts->short_name); |
51a9949e | 543 | } |
d7a38c54 | 544 | if (opts->long_name && opts->short_name) |
9c7304e3 | 545 | pos += fprintf(outfile, ", "); |
d7a38c54 | 546 | if (opts->long_name) |
cbb08c2e | 547 | pos += fprintf(outfile, "--%s", opts->long_name); |
e0319ff5 | 548 | if (opts->type == OPTION_NUMBER) |
9c7304e3 | 549 | pos += fprintf(outfile, "-NUM"); |
d7a38c54 | 550 | |
b57c68a6 JN |
551 | if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
552 | !(opts->flags & PARSE_OPT_NOARG)) | |
9c7304e3 | 553 | pos += usage_argh(opts, outfile); |
d7a38c54 | 554 | |
f389c808 AR |
555 | if (pos <= USAGE_OPTS_WIDTH) |
556 | pad = USAGE_OPTS_WIDTH - pos; | |
d7a38c54 | 557 | else { |
9c7304e3 | 558 | fputc('\n', outfile); |
d7a38c54 PH |
559 | pad = USAGE_OPTS_WIDTH; |
560 | } | |
9c7304e3 | 561 | fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", opts->help); |
d7a38c54 | 562 | } |
9c7304e3 | 563 | fputc('\n', outfile); |
f389c808 | 564 | |
47e9cd28 TR |
565 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
566 | fputs("EOF\n", outfile); | |
567 | ||
ee68b87a | 568 | return PARSE_OPT_HELP; |
d7a38c54 | 569 | } |
0ce865b1 | 570 | |
c2e86add | 571 | void NORETURN usage_with_options(const char * const *usagestr, |
ff43ec3e | 572 | const struct option *opts) |
dd3bf0f4 | 573 | { |
47e9cd28 | 574 | usage_with_options_internal(NULL, usagestr, opts, 0, 1); |
ff43ec3e | 575 | exit(129); |
dd3bf0f4 PH |
576 | } |
577 | ||
c2e86add | 578 | void NORETURN usage_msg_opt(const char *msg, |
451bb210 CC |
579 | const char * const *usagestr, |
580 | const struct option *options) | |
581 | { | |
582 | fprintf(stderr, "%s\n\n", msg); | |
583 | usage_with_options(usagestr, options); | |
584 | } | |
585 | ||
47e9cd28 TR |
586 | static int parse_options_usage(struct parse_opt_ctx_t *ctx, |
587 | const char * const *usagestr, | |
9c7304e3 | 588 | const struct option *opts, int err) |
ee68b87a | 589 | { |
47e9cd28 | 590 | return usage_with_options_internal(ctx, usagestr, opts, 0, err); |
ee68b87a PH |
591 | } |
592 |