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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" |
b2141fc1 | 4 | #include "config.h" |
269defdf | 5 | #include "commit.h" |
73e9da01 | 6 | #include "color.h" |
c0821965 | 7 | #include "utf8.h" |
4a59fd13 | 8 | |
b02e7d5d JS |
9 | static int disallow_abbreviated_options; |
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 | 15 | { |
af465af8 JH |
16 | if (opt->long_name) { |
17 | if (opt->short_name) | |
18 | return error("BUG: switch '%c' (--%s) %s", | |
19 | opt->short_name, opt->long_name, reason); | |
1e5ce570 | 20 | return error("BUG: option '%s' %s", opt->long_name, reason); |
af465af8 | 21 | } |
1e5ce570 JN |
22 | return error("BUG: switch '%c' %s", opt->short_name, reason); |
23 | } | |
24 | ||
f41179f1 NTND |
25 | static enum parse_opt_result get_arg(struct parse_opt_ctx_t *p, |
26 | const struct option *opt, | |
27 | int flags, const char **arg) | |
1cc6985c PH |
28 | { |
29 | if (p->opt) { | |
30 | *arg = p->opt; | |
31 | p->opt = NULL; | |
32 | } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) { | |
33 | *arg = (const char *)opt->defval; | |
d5d745f9 | 34 | } else if (p->argc > 1) { |
1cc6985c PH |
35 | p->argc--; |
36 | *arg = *++p->argv; | |
37 | } else | |
9440b831 | 38 | return error(_("%s requires a value"), optname(opt, flags)); |
1cc6985c PH |
39 | return 0; |
40 | } | |
41 | ||
df217ed6 SB |
42 | static void fix_filename(const char *prefix, const char **file) |
43 | { | |
44 | if (!file || !*file || !prefix || is_absolute_path(*file) | |
45 | || !strcmp("-", *file)) | |
46 | return; | |
e4da43b1 | 47 | *file = prefix_filename(prefix, *file); |
df217ed6 SB |
48 | } |
49 | ||
f41179f1 NTND |
50 | static enum parse_opt_result opt_command_mode_error( |
51 | const struct option *opt, | |
52 | const struct option *all_opts, | |
53 | int flags) | |
11588263 JH |
54 | { |
55 | const struct option *that; | |
11588263 JH |
56 | struct strbuf that_name = STRBUF_INIT; |
57 | ||
58 | /* | |
59 | * Find the other option that was used to set the variable | |
60 | * already, and report that this is not compatible with it. | |
61 | */ | |
62 | for (that = all_opts; that->type != OPTION_END; that++) { | |
63 | if (that == opt || | |
bc8620b4 | 64 | !(that->flags & PARSE_OPT_CMDMODE) || |
11588263 JH |
65 | that->value != opt->value || |
66 | that->defval != *(int *)opt->value) | |
67 | continue; | |
68 | ||
69 | if (that->long_name) | |
70 | strbuf_addf(&that_name, "--%s", that->long_name); | |
71 | else | |
72 | strbuf_addf(&that_name, "-%c", that->short_name); | |
9440b831 NTND |
73 | error(_("%s is incompatible with %s"), |
74 | optname(opt, flags), that_name.buf); | |
11588263 | 75 | strbuf_release(&that_name); |
f41179f1 | 76 | return PARSE_OPT_ERROR; |
11588263 | 77 | } |
9440b831 NTND |
78 | return error(_("%s : incompatible with something else"), |
79 | optname(opt, flags)); | |
11588263 JH |
80 | } |
81 | ||
f41179f1 NTND |
82 | static enum parse_opt_result get_value(struct parse_opt_ctx_t *p, |
83 | const struct option *opt, | |
84 | const struct option *all_opts, | |
85 | int flags) | |
4a59fd13 | 86 | { |
ffe659f9 | 87 | const char *s, *arg; |
db7244bd | 88 | const int unset = flags & OPT_UNSET; |
df217ed6 | 89 | int err; |
4a59fd13 | 90 | |
db7244bd | 91 | if (unset && p->opt) |
9440b831 | 92 | return error(_("%s takes no value"), optname(opt, flags)); |
db7244bd | 93 | if (unset && (opt->flags & PARSE_OPT_NONEG)) |
9440b831 | 94 | return error(_("%s isn't available"), optname(opt, flags)); |
c1f4ec9e | 95 | if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG)) |
9440b831 | 96 | return error(_("%s takes no value"), optname(opt, flags)); |
db7244bd | 97 | |
bc8620b4 PB |
98 | /* |
99 | * Giving the same mode option twice, although unnecessary, | |
100 | * is not a grave error, so let it pass. | |
101 | */ | |
102 | if ((opt->flags & PARSE_OPT_CMDMODE) && | |
103 | *(int *)opt->value && *(int *)opt->value != opt->defval) | |
104 | return opt_command_mode_error(opt, all_opts, flags); | |
105 | ||
db7244bd | 106 | switch (opt->type) { |
b0b3a8b6 | 107 | case OPTION_LOWLEVEL_CALLBACK: |
3ebbe289 | 108 | return opt->ll_callback(p, opt, NULL, unset); |
b0b3a8b6 | 109 | |
db7244bd PH |
110 | case OPTION_BIT: |
111 | if (unset) | |
112 | *(int *)opt->value &= ~opt->defval; | |
4a59fd13 | 113 | else |
db7244bd PH |
114 | *(int *)opt->value |= opt->defval; |
115 | return 0; | |
116 | ||
2f4b97f9 RS |
117 | case OPTION_NEGBIT: |
118 | if (unset) | |
119 | *(int *)opt->value |= opt->defval; | |
120 | else | |
121 | *(int *)opt->value &= ~opt->defval; | |
122 | return 0; | |
123 | ||
f62470c6 NTND |
124 | case OPTION_BITOP: |
125 | if (unset) | |
126 | BUG("BITOP can't have unset form"); | |
127 | *(int *)opt->value &= ~opt->extra; | |
128 | *(int *)opt->value |= opt->defval; | |
129 | return 0; | |
130 | ||
b04ba2bb | 131 | case OPTION_COUNTUP: |
e0070e8b PB |
132 | if (*(int *)opt->value < 0) |
133 | *(int *)opt->value = 0; | |
db7244bd PH |
134 | *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; |
135 | return 0; | |
136 | ||
137 | case OPTION_SET_INT: | |
138 | *(int *)opt->value = unset ? 0 : opt->defval; | |
139 | return 0; | |
140 | ||
4a59fd13 | 141 | case OPTION_STRING: |
1cc6985c | 142 | if (unset) |
db7244bd | 143 | *(const char **)opt->value = NULL; |
1cc6985c | 144 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
ffe659f9 | 145 | *(const char **)opt->value = (const char *)opt->defval; |
1cc6985c PH |
146 | else |
147 | return get_arg(p, opt, flags, (const char **)opt->value); | |
4a59fd13 PH |
148 | return 0; |
149 | ||
df217ed6 SB |
150 | case OPTION_FILENAME: |
151 | err = 0; | |
152 | if (unset) | |
153 | *(const char **)opt->value = NULL; | |
154 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
155 | *(const char **)opt->value = (const char *)opt->defval; | |
156 | else | |
157 | err = get_arg(p, opt, flags, (const char **)opt->value); | |
158 | ||
159 | if (!err) | |
160 | fix_filename(p->prefix, (const char **)opt->value); | |
161 | return err; | |
162 | ||
ffe659f9 | 163 | case OPTION_CALLBACK: |
3ebbe289 NTND |
164 | { |
165 | const char *p_arg = NULL; | |
166 | int p_unset; | |
167 | ||
db7244bd | 168 | if (unset) |
3ebbe289 NTND |
169 | p_unset = 1; |
170 | else if (opt->flags & PARSE_OPT_NOARG) | |
171 | p_unset = 0; | |
172 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
173 | p_unset = 0; | |
174 | else if (get_arg(p, opt, flags, &arg)) | |
1cc6985c | 175 | return -1; |
3ebbe289 NTND |
176 | else { |
177 | p_unset = 0; | |
178 | p_arg = arg; | |
179 | } | |
180 | if (opt->callback) | |
181 | return (*opt->callback)(opt, p_arg, p_unset) ? (-1) : 0; | |
182 | else | |
183 | return (*opt->ll_callback)(p, opt, p_arg, p_unset); | |
184 | } | |
4a59fd13 | 185 | case OPTION_INTEGER: |
db7244bd | 186 | if (unset) { |
4a59fd13 PH |
187 | *(int *)opt->value = 0; |
188 | return 0; | |
189 | } | |
c43a2483 | 190 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { |
ffe659f9 PH |
191 | *(int *)opt->value = opt->defval; |
192 | return 0; | |
193 | } | |
1cc6985c PH |
194 | if (get_arg(p, opt, flags, &arg)) |
195 | return -1; | |
f7e68a08 NTND |
196 | if (!*arg) |
197 | return error(_("%s expects a numerical value"), | |
198 | optname(opt, flags)); | |
1cc6985c | 199 | *(int *)opt->value = strtol(arg, (char **)&s, 10); |
4a59fd13 | 200 | if (*s) |
9440b831 NTND |
201 | return error(_("%s expects a numerical value"), |
202 | optname(opt, flags)); | |
4a59fd13 PH |
203 | return 0; |
204 | ||
2a514ed8 CB |
205 | case OPTION_MAGNITUDE: |
206 | if (unset) { | |
207 | *(unsigned long *)opt->value = 0; | |
208 | return 0; | |
209 | } | |
210 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { | |
211 | *(unsigned long *)opt->value = opt->defval; | |
212 | return 0; | |
213 | } | |
214 | if (get_arg(p, opt, flags, &arg)) | |
215 | return -1; | |
216 | if (!git_parse_ulong(arg, opt->value)) | |
9440b831 NTND |
217 | return error(_("%s expects a non-negative integer value" |
218 | " with an optional k/m/g suffix"), | |
219 | optname(opt, flags)); | |
2a514ed8 CB |
220 | return 0; |
221 | ||
4a59fd13 | 222 | default: |
48a5499e | 223 | BUG("opt->type %d should not happen", opt->type); |
4a59fd13 PH |
224 | } |
225 | } | |
226 | ||
f41179f1 NTND |
227 | static enum parse_opt_result parse_short_opt(struct parse_opt_ctx_t *p, |
228 | const struct option *options) | |
4a59fd13 | 229 | { |
11588263 | 230 | const struct option *all_opts = options; |
e0319ff5 RS |
231 | const struct option *numopt = NULL; |
232 | ||
4a59fd13 PH |
233 | for (; options->type != OPTION_END; options++) { |
234 | if (options->short_name == *p->opt) { | |
235 | p->opt = p->opt[1] ? p->opt + 1 : NULL; | |
11588263 | 236 | return get_value(p, options, all_opts, OPT_SHORT); |
4a59fd13 | 237 | } |
e0319ff5 RS |
238 | |
239 | /* | |
240 | * Handle the numerical option later, explicit one-digit | |
241 | * options take precedence over it. | |
242 | */ | |
243 | if (options->type == OPTION_NUMBER) | |
244 | numopt = options; | |
245 | } | |
246 | if (numopt && isdigit(*p->opt)) { | |
247 | size_t len = 1; | |
248 | char *arg; | |
249 | int rc; | |
250 | ||
251 | while (isdigit(p->opt[len])) | |
252 | len++; | |
253 | arg = xmemdupz(p->opt, len); | |
254 | p->opt = p->opt[len] ? p->opt + len : NULL; | |
3ebbe289 NTND |
255 | if (numopt->callback) |
256 | rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; | |
257 | else | |
258 | rc = (*numopt->ll_callback)(p, numopt, arg, 0); | |
e0319ff5 RS |
259 | free(arg); |
260 | return rc; | |
4a59fd13 | 261 | } |
f41179f1 | 262 | return PARSE_OPT_UNKNOWN; |
4a59fd13 PH |
263 | } |
264 | ||
5c387428 NTND |
265 | static int has_string(const char *it, const char **array) |
266 | { | |
267 | while (*array) | |
268 | if (!strcmp(it, *(array++))) | |
269 | return 1; | |
270 | return 0; | |
271 | } | |
272 | ||
273 | static int is_alias(struct parse_opt_ctx_t *ctx, | |
274 | const struct option *one_opt, | |
275 | const struct option *another_opt) | |
276 | { | |
277 | const char **group; | |
278 | ||
279 | if (!ctx->alias_groups) | |
280 | return 0; | |
281 | ||
282 | if (!one_opt->long_name || !another_opt->long_name) | |
283 | return 0; | |
284 | ||
285 | for (group = ctx->alias_groups; *group; group += 3) { | |
286 | /* it and other are from the same family? */ | |
287 | if (has_string(one_opt->long_name, group) && | |
288 | has_string(another_opt->long_name, group)) | |
289 | return 1; | |
290 | } | |
291 | return 0; | |
292 | } | |
293 | ||
f41179f1 NTND |
294 | static enum parse_opt_result parse_long_opt( |
295 | struct parse_opt_ctx_t *p, const char *arg, | |
296 | const struct option *options) | |
4a59fd13 | 297 | { |
11588263 | 298 | const struct option *all_opts = options; |
2c5495f7 | 299 | const char *arg_end = strchrnul(arg, '='); |
243e0614 JS |
300 | const struct option *abbrev_option = NULL, *ambiguous_option = NULL; |
301 | int abbrev_flags = 0, ambiguous_flags = 0; | |
7f275b91 | 302 | |
4a59fd13 | 303 | for (; options->type != OPTION_END; options++) { |
0f1930c5 RS |
304 | const char *rest, *long_name = options->long_name; |
305 | int flags = 0, opt_flags = 0; | |
4a59fd13 | 306 | |
0f1930c5 | 307 | if (!long_name) |
4a59fd13 PH |
308 | continue; |
309 | ||
0f1930c5 | 310 | again: |
cf4fff57 JK |
311 | if (!skip_prefix(arg, long_name, &rest)) |
312 | rest = NULL; | |
580d5bff PH |
313 | if (options->type == OPTION_ARGUMENT) { |
314 | if (!rest) | |
315 | continue; | |
316 | if (*rest == '=') | |
9440b831 NTND |
317 | return error(_("%s takes no value"), |
318 | optname(options, flags)); | |
580d5bff PH |
319 | if (*rest) |
320 | continue; | |
1a85b49b JS |
321 | if (options->value) |
322 | *(int *)options->value = options->defval; | |
580d5bff | 323 | p->out[p->cpidx++] = arg - 2; |
f41179f1 | 324 | return PARSE_OPT_DONE; |
580d5bff | 325 | } |
4a59fd13 | 326 | if (!rest) { |
7f275b91 | 327 | /* abbreviated? */ |
baa4adc6 NTND |
328 | if (!(p->flags & PARSE_OPT_KEEP_UNKNOWN) && |
329 | !strncmp(long_name, arg, arg_end - arg)) { | |
7f275b91 | 330 | is_abbreviated: |
5c387428 NTND |
331 | if (abbrev_option && |
332 | !is_alias(p, abbrev_option, options)) { | |
243e0614 JS |
333 | /* |
334 | * If this is abbreviated, it is | |
335 | * ambiguous. So when there is no | |
336 | * exact match later, we need to | |
337 | * error out. | |
338 | */ | |
339 | ambiguous_option = abbrev_option; | |
340 | ambiguous_flags = abbrev_flags; | |
341 | } | |
7f275b91 JS |
342 | if (!(flags & OPT_UNSET) && *arg_end) |
343 | p->opt = arg_end + 1; | |
344 | abbrev_option = options; | |
0f1930c5 | 345 | abbrev_flags = flags ^ opt_flags; |
7f275b91 JS |
346 | continue; |
347 | } | |
6bbfd1fa AS |
348 | /* negation allowed? */ |
349 | if (options->flags & PARSE_OPT_NONEG) | |
350 | continue; | |
7f275b91 | 351 | /* negated and abbreviated very much? */ |
59556548 | 352 | if (starts_with("no-", arg)) { |
7f275b91 JS |
353 | flags |= OPT_UNSET; |
354 | goto is_abbreviated; | |
355 | } | |
356 | /* negated? */ | |
59556548 | 357 | if (!starts_with(arg, "no-")) { |
145136a9 | 358 | if (skip_prefix(long_name, "no-", &long_name)) { |
0f1930c5 RS |
359 | opt_flags |= OPT_UNSET; |
360 | goto again; | |
361 | } | |
4a59fd13 | 362 | continue; |
0f1930c5 | 363 | } |
4a59fd13 | 364 | flags |= OPT_UNSET; |
cf4fff57 JK |
365 | if (!skip_prefix(arg + 3, long_name, &rest)) { |
366 | /* abbreviated and negated? */ | |
367 | if (starts_with(long_name, arg + 3)) | |
368 | goto is_abbreviated; | |
369 | else | |
370 | continue; | |
371 | } | |
4a59fd13 PH |
372 | } |
373 | if (*rest) { | |
374 | if (*rest != '=') | |
375 | continue; | |
376 | p->opt = rest + 1; | |
377 | } | |
11588263 | 378 | return get_value(p, options, all_opts, flags ^ opt_flags); |
4a59fd13 | 379 | } |
243e0614 | 380 | |
b02e7d5d JS |
381 | if (disallow_abbreviated_options && (ambiguous_option || abbrev_option)) |
382 | die("disallowed abbreviated or ambiguous option '%.*s'", | |
383 | (int)(arg_end - arg), arg); | |
384 | ||
3bb0923f | 385 | if (ambiguous_option) { |
89003426 NTND |
386 | error(_("ambiguous option: %s " |
387 | "(could be --%s%s or --%s%s)"), | |
243e0614 JS |
388 | arg, |
389 | (ambiguous_flags & OPT_UNSET) ? "no-" : "", | |
390 | ambiguous_option->long_name, | |
391 | (abbrev_flags & OPT_UNSET) ? "no-" : "", | |
392 | abbrev_option->long_name); | |
f41179f1 | 393 | return PARSE_OPT_HELP; |
3bb0923f | 394 | } |
7f275b91 | 395 | if (abbrev_option) |
11588263 | 396 | return get_value(p, abbrev_option, all_opts, abbrev_flags); |
f41179f1 | 397 | return PARSE_OPT_UNKNOWN; |
4a59fd13 PH |
398 | } |
399 | ||
51a9949e RS |
400 | static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, |
401 | const struct option *options) | |
402 | { | |
11588263 JH |
403 | const struct option *all_opts = options; |
404 | ||
51a9949e RS |
405 | for (; options->type != OPTION_END; options++) { |
406 | if (!(options->flags & PARSE_OPT_NODASH)) | |
407 | continue; | |
51a9949e | 408 | if (options->short_name == arg[0] && arg[1] == '\0') |
11588263 | 409 | return get_value(p, options, all_opts, OPT_SHORT); |
51a9949e RS |
410 | } |
411 | return -2; | |
412 | } | |
413 | ||
1121a878 | 414 | static void check_typos(const char *arg, const struct option *options) |
3a9f0f41 PH |
415 | { |
416 | if (strlen(arg) < 3) | |
417 | return; | |
418 | ||
59556548 | 419 | if (starts_with(arg, "no-")) { |
395518cf | 420 | error(_("did you mean `--%s` (with two dashes)?"), arg); |
3a9f0f41 PH |
421 | exit(129); |
422 | } | |
423 | ||
424 | for (; options->type != OPTION_END; options++) { | |
425 | if (!options->long_name) | |
426 | continue; | |
59556548 | 427 | if (starts_with(options->long_name, arg)) { |
395518cf | 428 | error(_("did you mean `--%s` (with two dashes)?"), arg); |
3a9f0f41 PH |
429 | exit(129); |
430 | } | |
431 | } | |
432 | } | |
433 | ||
cb9d398c PH |
434 | static void parse_options_check(const struct option *opts) |
435 | { | |
436 | int err = 0; | |
af465af8 | 437 | char short_opts[128]; |
cb9d398c | 438 | |
af465af8 | 439 | memset(short_opts, '\0', sizeof(short_opts)); |
cb9d398c PH |
440 | for (; opts->type != OPTION_END; opts++) { |
441 | if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && | |
1e5ce570 JN |
442 | (opts->flags & PARSE_OPT_OPTARG)) |
443 | err |= optbug(opts, "uses incompatible flags " | |
444 | "LASTARG_DEFAULT and OPTARG"); | |
af465af8 JH |
445 | if (opts->short_name) { |
446 | if (0x7F <= opts->short_name) | |
447 | err |= optbug(opts, "invalid short name"); | |
448 | else if (short_opts[opts->short_name]++) | |
449 | err |= optbug(opts, "short name already used"); | |
450 | } | |
a02dd4ff JN |
451 | if (opts->flags & PARSE_OPT_NODASH && |
452 | ((opts->flags & PARSE_OPT_OPTARG) || | |
453 | !(opts->flags & PARSE_OPT_NOARG) || | |
454 | !(opts->flags & PARSE_OPT_NONEG) || | |
455 | opts->long_name)) | |
456 | err |= optbug(opts, "uses feature " | |
457 | "not supported for dashless options"); | |
5c400ed2 | 458 | switch (opts->type) { |
b04ba2bb | 459 | case OPTION_COUNTUP: |
5c400ed2 JN |
460 | case OPTION_BIT: |
461 | case OPTION_NEGBIT: | |
462 | case OPTION_SET_INT: | |
5c400ed2 JN |
463 | case OPTION_NUMBER: |
464 | if ((opts->flags & PARSE_OPT_OPTARG) || | |
465 | !(opts->flags & PARSE_OPT_NOARG)) | |
466 | err |= optbug(opts, "should not accept an argument"); | |
bf3ff338 NTND |
467 | break; |
468 | case OPTION_CALLBACK: | |
3ebbe289 NTND |
469 | if (!opts->callback && !opts->ll_callback) |
470 | BUG("OPTION_CALLBACK needs one callback"); | |
471 | if (opts->callback && opts->ll_callback) | |
472 | BUG("OPTION_CALLBACK can't have two callbacks"); | |
bf3ff338 NTND |
473 | break; |
474 | case OPTION_LOWLEVEL_CALLBACK: | |
475 | if (!opts->ll_callback) | |
476 | BUG("OPTION_LOWLEVEL_CALLBACK needs a callback"); | |
477 | if (opts->callback) | |
478 | BUG("OPTION_LOWLEVEL_CALLBACK needs no high level callback"); | |
479 | break; | |
5c387428 NTND |
480 | case OPTION_ALIAS: |
481 | BUG("OPT_ALIAS() should not remain at this point. " | |
482 | "Are you using parse_options_step() directly?\n" | |
483 | "That case is not supported yet."); | |
5c400ed2 JN |
484 | default: |
485 | ; /* ok. (usually accepts an argument) */ | |
486 | } | |
b6c2a0d4 JH |
487 | if (opts->argh && |
488 | strcspn(opts->argh, " _") != strlen(opts->argh)) | |
489 | err |= optbug(opts, "multi-word argh should use dash to separate words"); | |
cb9d398c | 490 | } |
cb9d398c | 491 | if (err) |
1e5ce570 | 492 | exit(128); |
cb9d398c PH |
493 | } |
494 | ||
5c387428 NTND |
495 | static void parse_options_start_1(struct parse_opt_ctx_t *ctx, |
496 | int argc, const char **argv, const char *prefix, | |
497 | const struct option *options, int flags) | |
7e7bbcb4 | 498 | { |
202fbb33 NTND |
499 | ctx->argc = argc; |
500 | ctx->argv = argv; | |
501 | if (!(flags & PARSE_OPT_ONE_SHOT)) { | |
502 | ctx->argc--; | |
503 | ctx->argv++; | |
504 | } | |
505 | ctx->total = ctx->argc; | |
506 | ctx->out = argv; | |
37782920 | 507 | ctx->prefix = prefix; |
a32a4eaa | 508 | ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); |
7e7bbcb4 | 509 | ctx->flags = flags; |
0d260f9a | 510 | if ((flags & PARSE_OPT_KEEP_UNKNOWN) && |
202fbb33 NTND |
511 | (flags & PARSE_OPT_STOP_AT_NON_OPTION) && |
512 | !(flags & PARSE_OPT_ONE_SHOT)) | |
48a5499e | 513 | BUG("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); |
202fbb33 NTND |
514 | if ((flags & PARSE_OPT_ONE_SHOT) && |
515 | (flags & PARSE_OPT_KEEP_ARGV0)) | |
516 | BUG("Can't keep argv0 if you don't have it"); | |
9ca1169f | 517 | parse_options_check(options); |
7e7bbcb4 PH |
518 | } |
519 | ||
5c387428 NTND |
520 | void parse_options_start(struct parse_opt_ctx_t *ctx, |
521 | int argc, const char **argv, const char *prefix, | |
522 | const struct option *options, int flags) | |
523 | { | |
524 | memset(ctx, 0, sizeof(*ctx)); | |
525 | parse_options_start_1(ctx, argc, argv, prefix, options, flags); | |
526 | } | |
527 | ||
b221b5ab NTND |
528 | static void show_negated_gitcomp(const struct option *opts, int nr_noopts) |
529 | { | |
530 | int printed_dashdash = 0; | |
531 | ||
532 | for (; opts->type != OPTION_END; opts++) { | |
533 | int has_unset_form = 0; | |
534 | const char *name; | |
535 | ||
536 | if (!opts->long_name) | |
537 | continue; | |
538 | if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) | |
539 | continue; | |
540 | if (opts->flags & PARSE_OPT_NONEG) | |
541 | continue; | |
542 | ||
543 | switch (opts->type) { | |
544 | case OPTION_STRING: | |
545 | case OPTION_FILENAME: | |
546 | case OPTION_INTEGER: | |
547 | case OPTION_MAGNITUDE: | |
548 | case OPTION_CALLBACK: | |
549 | case OPTION_BIT: | |
550 | case OPTION_NEGBIT: | |
551 | case OPTION_COUNTUP: | |
552 | case OPTION_SET_INT: | |
553 | has_unset_form = 1; | |
554 | break; | |
555 | default: | |
556 | break; | |
557 | } | |
558 | if (!has_unset_form) | |
559 | continue; | |
560 | ||
561 | if (skip_prefix(opts->long_name, "no-", &name)) { | |
562 | if (nr_noopts < 0) | |
563 | printf(" --%s", name); | |
564 | } else if (nr_noopts >= 0) { | |
565 | if (nr_noopts && !printed_dashdash) { | |
566 | printf(" --"); | |
567 | printed_dashdash = 1; | |
568 | } | |
569 | printf(" --no-%s", opts->long_name); | |
570 | nr_noopts++; | |
571 | } | |
572 | } | |
573 | } | |
574 | ||
5205749d | 575 | static int show_gitcomp(const struct option *opts) |
b9d7f4b4 | 576 | { |
b221b5ab NTND |
577 | const struct option *original_opts = opts; |
578 | int nr_noopts = 0; | |
579 | ||
b9d7f4b4 NTND |
580 | for (; opts->type != OPTION_END; opts++) { |
581 | const char *suffix = ""; | |
582 | ||
583 | if (!opts->long_name) | |
584 | continue; | |
585 | if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) | |
586 | continue; | |
587 | ||
588 | switch (opts->type) { | |
589 | case OPTION_GROUP: | |
590 | continue; | |
591 | case OPTION_STRING: | |
592 | case OPTION_FILENAME: | |
593 | case OPTION_INTEGER: | |
594 | case OPTION_MAGNITUDE: | |
595 | case OPTION_CALLBACK: | |
596 | if (opts->flags & PARSE_OPT_NOARG) | |
597 | break; | |
598 | if (opts->flags & PARSE_OPT_OPTARG) | |
599 | break; | |
600 | if (opts->flags & PARSE_OPT_LASTARG_DEFAULT) | |
601 | break; | |
602 | suffix = "="; | |
603 | break; | |
604 | default: | |
605 | break; | |
606 | } | |
ebc4a04e NTND |
607 | if (opts->flags & PARSE_OPT_COMP_ARG) |
608 | suffix = "="; | |
b221b5ab NTND |
609 | if (starts_with(opts->long_name, "no-")) |
610 | nr_noopts++; | |
b9d7f4b4 NTND |
611 | printf(" --%s%s", opts->long_name, suffix); |
612 | } | |
b221b5ab NTND |
613 | show_negated_gitcomp(original_opts, -1); |
614 | show_negated_gitcomp(original_opts, nr_noopts); | |
b9d7f4b4 | 615 | fputc('\n', stdout); |
a92ec7ef | 616 | return PARSE_OPT_COMPLETE; |
b9d7f4b4 NTND |
617 | } |
618 | ||
5c387428 NTND |
619 | /* |
620 | * Scan and may produce a new option[] array, which should be used | |
621 | * instead of the original 'options'. | |
622 | * | |
15beaaa3 | 623 | * Right now this is only used to preprocess and substitute |
5c387428 NTND |
624 | * OPTION_ALIAS. |
625 | */ | |
626 | static struct option *preprocess_options(struct parse_opt_ctx_t *ctx, | |
627 | const struct option *options) | |
628 | { | |
629 | struct option *newopt; | |
630 | int i, nr, alias; | |
631 | int nr_aliases = 0; | |
632 | ||
633 | for (nr = 0; options[nr].type != OPTION_END; nr++) { | |
634 | if (options[nr].type == OPTION_ALIAS) | |
635 | nr_aliases++; | |
636 | } | |
637 | ||
638 | if (!nr_aliases) | |
639 | return NULL; | |
640 | ||
641 | ALLOC_ARRAY(newopt, nr + 1); | |
642 | COPY_ARRAY(newopt, options, nr + 1); | |
643 | ||
644 | /* each alias has two string pointers and NULL */ | |
645 | CALLOC_ARRAY(ctx->alias_groups, 3 * (nr_aliases + 1)); | |
646 | ||
647 | for (alias = 0, i = 0; i < nr; i++) { | |
648 | int short_name; | |
649 | const char *long_name; | |
650 | const char *source; | |
7c280589 | 651 | struct strbuf help = STRBUF_INIT; |
5c387428 NTND |
652 | int j; |
653 | ||
654 | if (newopt[i].type != OPTION_ALIAS) | |
655 | continue; | |
656 | ||
657 | short_name = newopt[i].short_name; | |
658 | long_name = newopt[i].long_name; | |
659 | source = newopt[i].value; | |
660 | ||
661 | if (!long_name) | |
662 | BUG("An alias must have long option name"); | |
7c280589 | 663 | strbuf_addf(&help, _("alias of --%s"), source); |
5c387428 NTND |
664 | |
665 | for (j = 0; j < nr; j++) { | |
666 | const char *name = options[j].long_name; | |
667 | ||
668 | if (!name || strcmp(name, source)) | |
669 | continue; | |
670 | ||
671 | if (options[j].type == OPTION_ALIAS) | |
672 | BUG("No please. Nested aliases are not supported."); | |
673 | ||
5c387428 NTND |
674 | memcpy(newopt + i, options + j, sizeof(*newopt)); |
675 | newopt[i].short_name = short_name; | |
676 | newopt[i].long_name = long_name; | |
7c280589 | 677 | newopt[i].help = strbuf_detach(&help, NULL); |
5c387428 NTND |
678 | break; |
679 | } | |
680 | ||
681 | if (j == nr) | |
682 | BUG("could not find source option '%s' of alias '%s'", | |
683 | source, newopt[i].long_name); | |
684 | ctx->alias_groups[alias * 3 + 0] = newopt[i].long_name; | |
685 | ctx->alias_groups[alias * 3 + 1] = options[j].long_name; | |
686 | ctx->alias_groups[alias * 3 + 2] = NULL; | |
687 | alias++; | |
688 | } | |
689 | ||
690 | return newopt; | |
691 | } | |
692 | ||
47e9cd28 TR |
693 | static int usage_with_options_internal(struct parse_opt_ctx_t *, |
694 | const char * const *, | |
9c7304e3 | 695 | const struct option *, int, int); |
dd3bf0f4 | 696 | |
ff43ec3e PH |
697 | int parse_options_step(struct parse_opt_ctx_t *ctx, |
698 | const struct option *options, | |
699 | const char * const usagestr[]) | |
4a59fd13 | 700 | { |
b92891f9 RS |
701 | int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); |
702 | ||
26141b5b PH |
703 | /* we must reset ->opt, unknown short option leave it dangling */ |
704 | ctx->opt = NULL; | |
705 | ||
ff43ec3e PH |
706 | for (; ctx->argc; ctx->argc--, ctx->argv++) { |
707 | const char *arg = ctx->argv[0]; | |
4a59fd13 | 708 | |
202fbb33 NTND |
709 | if (ctx->flags & PARSE_OPT_ONE_SHOT && |
710 | ctx->argc != ctx->total) | |
711 | break; | |
712 | ||
4a59fd13 | 713 | if (*arg != '-' || !arg[1]) { |
51a9949e RS |
714 | if (parse_nodash_opt(ctx, arg, options) == 0) |
715 | continue; | |
ff43ec3e | 716 | if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) |
979240fe | 717 | return PARSE_OPT_NON_OPTION; |
ff43ec3e | 718 | ctx->out[ctx->cpidx++] = ctx->argv[0]; |
4a59fd13 PH |
719 | continue; |
720 | } | |
721 | ||
5ad0d3d5 RS |
722 | /* lone -h asks for help */ |
723 | if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h")) | |
724 | goto show_usage; | |
725 | ||
b9d7f4b4 NTND |
726 | /* lone --git-completion-helper is asked by git-completion.bash */ |
727 | if (ctx->total == 1 && !strcmp(arg + 1, "-git-completion-helper")) | |
5205749d | 728 | return show_gitcomp(options); |
b9d7f4b4 | 729 | |
4a59fd13 | 730 | if (arg[1] != '-') { |
ff43ec3e | 731 | ctx->opt = arg + 1; |
07fe54db | 732 | switch (parse_short_opt(ctx, options)) { |
f41179f1 | 733 | case PARSE_OPT_ERROR: |
3bb0923f | 734 | return PARSE_OPT_ERROR; |
f41179f1 | 735 | case PARSE_OPT_UNKNOWN: |
38916c5b RS |
736 | if (ctx->opt) |
737 | check_typos(arg + 1, options); | |
5ad0d3d5 RS |
738 | if (internal_help && *ctx->opt == 'h') |
739 | goto show_usage; | |
b5ce3a54 | 740 | goto unknown; |
f41179f1 NTND |
741 | case PARSE_OPT_NON_OPTION: |
742 | case PARSE_OPT_HELP: | |
743 | case PARSE_OPT_COMPLETE: | |
744 | BUG("parse_short_opt() cannot return these"); | |
745 | case PARSE_OPT_DONE: | |
746 | break; | |
07fe54db | 747 | } |
ff43ec3e | 748 | if (ctx->opt) |
3a9f0f41 | 749 | check_typos(arg + 1, options); |
ff43ec3e | 750 | while (ctx->opt) { |
07fe54db | 751 | switch (parse_short_opt(ctx, options)) { |
f41179f1 | 752 | case PARSE_OPT_ERROR: |
3bb0923f | 753 | return PARSE_OPT_ERROR; |
f41179f1 | 754 | case PARSE_OPT_UNKNOWN: |
5ad0d3d5 RS |
755 | if (internal_help && *ctx->opt == 'h') |
756 | goto show_usage; | |
757 | ||
26141b5b PH |
758 | /* fake a short option thing to hide the fact that we may have |
759 | * started to parse aggregated stuff | |
760 | * | |
761 | * This is leaky, too bad. | |
762 | */ | |
763 | ctx->argv[0] = xstrdup(ctx->opt - 1); | |
764 | *(char *)ctx->argv[0] = '-'; | |
b5ce3a54 | 765 | goto unknown; |
f41179f1 NTND |
766 | case PARSE_OPT_NON_OPTION: |
767 | case PARSE_OPT_COMPLETE: | |
768 | case PARSE_OPT_HELP: | |
769 | BUG("parse_short_opt() cannot return these"); | |
770 | case PARSE_OPT_DONE: | |
771 | break; | |
07fe54db | 772 | } |
3a9f0f41 | 773 | } |
4a59fd13 PH |
774 | continue; |
775 | } | |
776 | ||
51b4594b JK |
777 | if (!arg[2] /* "--" */ || |
778 | !strcmp(arg + 2, "end-of-options")) { | |
ff43ec3e PH |
779 | if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { |
780 | ctx->argc--; | |
781 | ctx->argv++; | |
4a59fd13 PH |
782 | } |
783 | break; | |
784 | } | |
785 | ||
b92891f9 | 786 | if (internal_help && !strcmp(arg + 2, "help-all")) |
47e9cd28 | 787 | return usage_with_options_internal(ctx, usagestr, options, 1, 0); |
b92891f9 | 788 | if (internal_help && !strcmp(arg + 2, "help")) |
ac20ff6d | 789 | goto show_usage; |
07fe54db | 790 | switch (parse_long_opt(ctx, arg + 2, options)) { |
f41179f1 | 791 | case PARSE_OPT_ERROR: |
3bb0923f | 792 | return PARSE_OPT_ERROR; |
f41179f1 | 793 | case PARSE_OPT_UNKNOWN: |
b5ce3a54 | 794 | goto unknown; |
f41179f1 | 795 | case PARSE_OPT_HELP: |
3bb0923f | 796 | goto show_usage; |
f41179f1 NTND |
797 | case PARSE_OPT_NON_OPTION: |
798 | case PARSE_OPT_COMPLETE: | |
799 | BUG("parse_long_opt() cannot return these"); | |
800 | case PARSE_OPT_DONE: | |
801 | break; | |
07fe54db | 802 | } |
b5ce3a54 RS |
803 | continue; |
804 | unknown: | |
202fbb33 NTND |
805 | if (ctx->flags & PARSE_OPT_ONE_SHOT) |
806 | break; | |
b5ce3a54 RS |
807 | if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) |
808 | return PARSE_OPT_UNKNOWN; | |
809 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
810 | ctx->opt = NULL; | |
ff43ec3e PH |
811 | } |
812 | return PARSE_OPT_DONE; | |
ac20ff6d | 813 | |
ac20ff6d | 814 | show_usage: |
3bb0923f | 815 | return usage_with_options_internal(ctx, usagestr, options, 0, 0); |
ff43ec3e PH |
816 | } |
817 | ||
818 | int parse_options_end(struct parse_opt_ctx_t *ctx) | |
819 | { | |
202fbb33 NTND |
820 | if (ctx->flags & PARSE_OPT_ONE_SHOT) |
821 | return ctx->total - ctx->argc; | |
822 | ||
f919ffeb | 823 | MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc); |
ff43ec3e PH |
824 | ctx->out[ctx->cpidx + ctx->argc] = NULL; |
825 | return ctx->cpidx + ctx->argc; | |
826 | } | |
827 | ||
37782920 SB |
828 | int parse_options(int argc, const char **argv, const char *prefix, |
829 | const struct option *options, const char * const usagestr[], | |
830 | int flags) | |
ff43ec3e PH |
831 | { |
832 | struct parse_opt_ctx_t ctx; | |
5c387428 | 833 | struct option *real_options; |
ff43ec3e | 834 | |
b02e7d5d JS |
835 | disallow_abbreviated_options = |
836 | git_env_bool("GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS", 0); | |
837 | ||
5c387428 NTND |
838 | memset(&ctx, 0, sizeof(ctx)); |
839 | real_options = preprocess_options(&ctx, options); | |
840 | if (real_options) | |
841 | options = real_options; | |
842 | parse_options_start_1(&ctx, argc, argv, prefix, options, flags); | |
ff43ec3e PH |
843 | switch (parse_options_step(&ctx, options, usagestr)) { |
844 | case PARSE_OPT_HELP: | |
3bb0923f | 845 | case PARSE_OPT_ERROR: |
ff43ec3e | 846 | exit(129); |
a92ec7ef NTND |
847 | case PARSE_OPT_COMPLETE: |
848 | exit(0); | |
979240fe | 849 | case PARSE_OPT_NON_OPTION: |
ff43ec3e PH |
850 | case PARSE_OPT_DONE: |
851 | break; | |
852 | default: /* PARSE_OPT_UNKNOWN */ | |
07fe54db | 853 | if (ctx.argv[0][1] == '-') { |
89003426 | 854 | error(_("unknown option `%s'"), ctx.argv[0] + 2); |
b141a478 | 855 | } else if (isascii(*ctx.opt)) { |
89003426 | 856 | error(_("unknown switch `%c'"), *ctx.opt); |
b141a478 | 857 | } else { |
89003426 | 858 | error(_("unknown non-ascii option in string: `%s'"), |
b141a478 | 859 | ctx.argv[0]); |
07fe54db PH |
860 | } |
861 | usage_with_options(usagestr, options); | |
4a59fd13 PH |
862 | } |
863 | ||
76759c7d | 864 | precompose_argv(argc, argv); |
5c387428 NTND |
865 | free(real_options); |
866 | free(ctx.alias_groups); | |
7e7bbcb4 | 867 | return parse_options_end(&ctx); |
4a59fd13 | 868 | } |
d7a38c54 | 869 | |
9c7304e3 | 870 | static int usage_argh(const struct option *opts, FILE *outfile) |
29f25d49 SB |
871 | { |
872 | const char *s; | |
5f0df44c RS |
873 | int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
874 | !opts->argh || !!strpbrk(opts->argh, "()<>[]|"); | |
29f25d49 SB |
875 | if (opts->flags & PARSE_OPT_OPTARG) |
876 | if (opts->long_name) | |
877 | s = literal ? "[=%s]" : "[=<%s>]"; | |
878 | else | |
879 | s = literal ? "[%s]" : "[<%s>]"; | |
880 | else | |
881 | s = literal ? " %s" : " <%s>"; | |
c0821965 | 882 | return utf8_fprintf(outfile, s, opts->argh ? _(opts->argh) : _("...")); |
29f25d49 SB |
883 | } |
884 | ||
d7a38c54 PH |
885 | #define USAGE_OPTS_WIDTH 24 |
886 | #define USAGE_GAP 2 | |
887 | ||
47e9cd28 TR |
888 | static int usage_with_options_internal(struct parse_opt_ctx_t *ctx, |
889 | const char * const *usagestr, | |
890 | const struct option *opts, int full, int err) | |
d7a38c54 | 891 | { |
9c7304e3 | 892 | FILE *outfile = err ? stderr : stdout; |
a6304fa4 | 893 | int need_newline; |
9c7304e3 | 894 | |
49b61802 RS |
895 | if (!usagestr) |
896 | return PARSE_OPT_HELP; | |
897 | ||
47e9cd28 TR |
898 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
899 | fprintf(outfile, "cat <<\\EOF\n"); | |
900 | ||
54e6dc7d | 901 | fprintf_ln(outfile, _("usage: %s"), _(*usagestr++)); |
f389c808 | 902 | while (*usagestr && **usagestr) |
66f5f6dc ÆAB |
903 | /* |
904 | * TRANSLATORS: the colon here should align with the | |
905 | * one in "usage: %s" translation. | |
906 | */ | |
54e6dc7d | 907 | fprintf_ln(outfile, _(" or: %s"), _(*usagestr++)); |
44d86e91 | 908 | while (*usagestr) { |
54e6dc7d NTND |
909 | if (**usagestr) |
910 | fprintf_ln(outfile, _(" %s"), _(*usagestr)); | |
911 | else | |
1a9bf1e1 | 912 | fputc('\n', outfile); |
44d86e91 JK |
913 | usagestr++; |
914 | } | |
d7a38c54 | 915 | |
a6304fa4 | 916 | need_newline = 1; |
d7a38c54 PH |
917 | |
918 | for (; opts->type != OPTION_END; opts++) { | |
919 | size_t pos; | |
920 | int pad; | |
921 | ||
922 | if (opts->type == OPTION_GROUP) { | |
9c7304e3 | 923 | fputc('\n', outfile); |
a6304fa4 | 924 | need_newline = 0; |
d7a38c54 | 925 | if (*opts->help) |
54e6dc7d | 926 | fprintf(outfile, "%s\n", _(opts->help)); |
d7a38c54 PH |
927 | continue; |
928 | } | |
dd3bf0f4 PH |
929 | if (!full && (opts->flags & PARSE_OPT_HIDDEN)) |
930 | continue; | |
d7a38c54 | 931 | |
a6304fa4 BC |
932 | if (need_newline) { |
933 | fputc('\n', outfile); | |
934 | need_newline = 0; | |
935 | } | |
936 | ||
9c7304e3 | 937 | pos = fprintf(outfile, " "); |
cbb08c2e | 938 | if (opts->short_name) { |
51a9949e | 939 | if (opts->flags & PARSE_OPT_NODASH) |
9c7304e3 | 940 | pos += fprintf(outfile, "%c", opts->short_name); |
51a9949e | 941 | else |
9c7304e3 | 942 | pos += fprintf(outfile, "-%c", opts->short_name); |
51a9949e | 943 | } |
d7a38c54 | 944 | if (opts->long_name && opts->short_name) |
9c7304e3 | 945 | pos += fprintf(outfile, ", "); |
d7a38c54 | 946 | if (opts->long_name) |
cbb08c2e | 947 | pos += fprintf(outfile, "--%s", opts->long_name); |
e0319ff5 | 948 | if (opts->type == OPTION_NUMBER) |
c0821965 | 949 | pos += utf8_fprintf(outfile, _("-NUM")); |
d7a38c54 | 950 | |
b57c68a6 JN |
951 | if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
952 | !(opts->flags & PARSE_OPT_NOARG)) | |
9c7304e3 | 953 | pos += usage_argh(opts, outfile); |
d7a38c54 | 954 | |
f389c808 AR |
955 | if (pos <= USAGE_OPTS_WIDTH) |
956 | pad = USAGE_OPTS_WIDTH - pos; | |
d7a38c54 | 957 | else { |
9c7304e3 | 958 | fputc('\n', outfile); |
d7a38c54 PH |
959 | pad = USAGE_OPTS_WIDTH; |
960 | } | |
5c387428 NTND |
961 | if (opts->type == OPTION_ALIAS) { |
962 | fprintf(outfile, "%*s", pad + USAGE_GAP, ""); | |
963 | fprintf_ln(outfile, _("alias of --%s"), | |
964 | (const char *)opts->value); | |
965 | continue; | |
966 | } | |
54e6dc7d | 967 | fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help)); |
d7a38c54 | 968 | } |
9c7304e3 | 969 | fputc('\n', outfile); |
f389c808 | 970 | |
47e9cd28 TR |
971 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
972 | fputs("EOF\n", outfile); | |
973 | ||
ee68b87a | 974 | return PARSE_OPT_HELP; |
d7a38c54 | 975 | } |
0ce865b1 | 976 | |
c2e86add | 977 | void NORETURN usage_with_options(const char * const *usagestr, |
ff43ec3e | 978 | const struct option *opts) |
dd3bf0f4 | 979 | { |
47e9cd28 | 980 | usage_with_options_internal(NULL, usagestr, opts, 0, 1); |
ff43ec3e | 981 | exit(129); |
dd3bf0f4 PH |
982 | } |
983 | ||
c2e86add | 984 | void NORETURN usage_msg_opt(const char *msg, |
451bb210 CC |
985 | const char * const *usagestr, |
986 | const struct option *options) | |
987 | { | |
87433261 | 988 | fprintf(stderr, "fatal: %s\n\n", msg); |
451bb210 CC |
989 | usage_with_options(usagestr, options); |
990 | } | |
991 | ||
9440b831 | 992 | const char *optname(const struct option *opt, int flags) |
a469a101 | 993 | { |
9440b831 NTND |
994 | static struct strbuf sb = STRBUF_INIT; |
995 | ||
996 | strbuf_reset(&sb); | |
a469a101 | 997 | if (flags & OPT_SHORT) |
9440b831 NTND |
998 | strbuf_addf(&sb, "switch `%c'", opt->short_name); |
999 | else if (flags & OPT_UNSET) | |
1000 | strbuf_addf(&sb, "option `no-%s'", opt->long_name); | |
1001 | else | |
1002 | strbuf_addf(&sb, "option `%s'", opt->long_name); | |
1003 | ||
1004 | return sb.buf; | |
a469a101 | 1005 | } |