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Commit | Line | Data |
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4a59fd13 PH |
1 | #include "git-compat-util.h" |
2 | #include "parse-options.h" | |
0b027f6c | 3 | #include "abspath.h" |
b1bda751 | 4 | #include "parse.h" |
269defdf | 5 | #include "commit.h" |
73e9da01 | 6 | #include "color.h" |
f394e093 | 7 | #include "gettext.h" |
d4a4f929 | 8 | #include "strbuf.h" |
b1bda751 | 9 | #include "string-list.h" |
c0821965 | 10 | #include "utf8.h" |
4a59fd13 | 11 | |
b02e7d5d JS |
12 | static int disallow_abbreviated_options; |
13 | ||
d3428345 ÆAB |
14 | enum opt_parsed { |
15 | OPT_LONG = 0, | |
16 | OPT_SHORT = 1<<0, | |
17 | OPT_UNSET = 1<<1, | |
18 | }; | |
4a59fd13 | 19 | |
53ca5694 | 20 | static void optbug(const struct option *opt, const char *reason) |
1e5ce570 | 21 | { |
53ca5694 ÆAB |
22 | if (opt->long_name && opt->short_name) |
23 | bug("switch '%c' (--%s) %s", opt->short_name, | |
24 | opt->long_name, reason); | |
25 | else if (opt->long_name) | |
26 | bug("option '%s' %s", opt->long_name, reason); | |
27 | else | |
28 | bug("switch '%c' %s", opt->short_name, reason); | |
1e5ce570 JN |
29 | } |
30 | ||
d3428345 | 31 | static const char *optname(const struct option *opt, enum opt_parsed flags) |
3c2047a7 ÆAB |
32 | { |
33 | static struct strbuf sb = STRBUF_INIT; | |
34 | ||
35 | strbuf_reset(&sb); | |
36 | if (flags & OPT_SHORT) | |
37 | strbuf_addf(&sb, "switch `%c'", opt->short_name); | |
38 | else if (flags & OPT_UNSET) | |
39 | strbuf_addf(&sb, "option `no-%s'", opt->long_name); | |
d3428345 | 40 | else if (flags == OPT_LONG) |
3c2047a7 | 41 | strbuf_addf(&sb, "option `%s'", opt->long_name); |
d3428345 ÆAB |
42 | else |
43 | BUG("optname() got unknown flags %d", flags); | |
3c2047a7 ÆAB |
44 | |
45 | return sb.buf; | |
46 | } | |
47 | ||
f41179f1 NTND |
48 | static enum parse_opt_result get_arg(struct parse_opt_ctx_t *p, |
49 | const struct option *opt, | |
d3428345 | 50 | enum opt_parsed flags, const char **arg) |
1cc6985c PH |
51 | { |
52 | if (p->opt) { | |
53 | *arg = p->opt; | |
54 | p->opt = NULL; | |
55 | } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) { | |
56 | *arg = (const char *)opt->defval; | |
d5d745f9 | 57 | } else if (p->argc > 1) { |
1cc6985c PH |
58 | p->argc--; |
59 | *arg = *++p->argv; | |
60 | } else | |
9440b831 | 61 | return error(_("%s requires a value"), optname(opt, flags)); |
1cc6985c PH |
62 | return 0; |
63 | } | |
64 | ||
7ce4088a | 65 | static void fix_filename(const char *prefix, char **file) |
df217ed6 | 66 | { |
7ce4088a JK |
67 | if (!file || !*file) |
68 | ; /* leave as NULL */ | |
7ce4088a | 69 | else |
0bbe1031 | 70 | *file = prefix_filename_except_for_dash(prefix, *file); |
df217ed6 SB |
71 | } |
72 | ||
0025dde7 RS |
73 | static enum parse_opt_result do_get_value(struct parse_opt_ctx_t *p, |
74 | const struct option *opt, | |
75 | enum opt_parsed flags, | |
76 | const char **argp) | |
4a59fd13 | 77 | { |
ffe659f9 | 78 | const char *s, *arg; |
db7244bd | 79 | const int unset = flags & OPT_UNSET; |
df217ed6 | 80 | int err; |
4a59fd13 | 81 | |
db7244bd | 82 | if (unset && p->opt) |
9440b831 | 83 | return error(_("%s takes no value"), optname(opt, flags)); |
db7244bd | 84 | if (unset && (opt->flags & PARSE_OPT_NONEG)) |
9440b831 | 85 | return error(_("%s isn't available"), optname(opt, flags)); |
c1f4ec9e | 86 | if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG)) |
9440b831 | 87 | return error(_("%s takes no value"), optname(opt, flags)); |
db7244bd | 88 | |
db7244bd | 89 | switch (opt->type) { |
b0b3a8b6 | 90 | case OPTION_LOWLEVEL_CALLBACK: |
3ebbe289 | 91 | return opt->ll_callback(p, opt, NULL, unset); |
b0b3a8b6 | 92 | |
db7244bd PH |
93 | case OPTION_BIT: |
94 | if (unset) | |
95 | *(int *)opt->value &= ~opt->defval; | |
4a59fd13 | 96 | else |
db7244bd PH |
97 | *(int *)opt->value |= opt->defval; |
98 | return 0; | |
99 | ||
2f4b97f9 RS |
100 | case OPTION_NEGBIT: |
101 | if (unset) | |
102 | *(int *)opt->value |= opt->defval; | |
103 | else | |
104 | *(int *)opt->value &= ~opt->defval; | |
105 | return 0; | |
106 | ||
f62470c6 NTND |
107 | case OPTION_BITOP: |
108 | if (unset) | |
109 | BUG("BITOP can't have unset form"); | |
110 | *(int *)opt->value &= ~opt->extra; | |
111 | *(int *)opt->value |= opt->defval; | |
112 | return 0; | |
113 | ||
b04ba2bb | 114 | case OPTION_COUNTUP: |
e0070e8b PB |
115 | if (*(int *)opt->value < 0) |
116 | *(int *)opt->value = 0; | |
db7244bd PH |
117 | *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; |
118 | return 0; | |
119 | ||
120 | case OPTION_SET_INT: | |
121 | *(int *)opt->value = unset ? 0 : opt->defval; | |
122 | return 0; | |
123 | ||
4a59fd13 | 124 | case OPTION_STRING: |
1cc6985c | 125 | if (unset) |
db7244bd | 126 | *(const char **)opt->value = NULL; |
1cc6985c | 127 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
ffe659f9 | 128 | *(const char **)opt->value = (const char *)opt->defval; |
1cc6985c PH |
129 | else |
130 | return get_arg(p, opt, flags, (const char **)opt->value); | |
4a59fd13 PH |
131 | return 0; |
132 | ||
df217ed6 SB |
133 | case OPTION_FILENAME: |
134 | err = 0; | |
135 | if (unset) | |
136 | *(const char **)opt->value = NULL; | |
137 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
138 | *(const char **)opt->value = (const char *)opt->defval; | |
139 | else | |
140 | err = get_arg(p, opt, flags, (const char **)opt->value); | |
141 | ||
142 | if (!err) | |
7ce4088a | 143 | fix_filename(p->prefix, (char **)opt->value); |
df217ed6 SB |
144 | return err; |
145 | ||
ffe659f9 | 146 | case OPTION_CALLBACK: |
3ebbe289 NTND |
147 | { |
148 | const char *p_arg = NULL; | |
149 | int p_unset; | |
150 | ||
db7244bd | 151 | if (unset) |
3ebbe289 NTND |
152 | p_unset = 1; |
153 | else if (opt->flags & PARSE_OPT_NOARG) | |
154 | p_unset = 0; | |
155 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
156 | p_unset = 0; | |
157 | else if (get_arg(p, opt, flags, &arg)) | |
1cc6985c | 158 | return -1; |
3ebbe289 NTND |
159 | else { |
160 | p_unset = 0; | |
161 | p_arg = arg; | |
162 | } | |
0025dde7 RS |
163 | if (opt->flags & PARSE_OPT_CMDMODE) |
164 | *argp = p_arg; | |
3ebbe289 NTND |
165 | if (opt->callback) |
166 | return (*opt->callback)(opt, p_arg, p_unset) ? (-1) : 0; | |
167 | else | |
168 | return (*opt->ll_callback)(p, opt, p_arg, p_unset); | |
169 | } | |
4a59fd13 | 170 | case OPTION_INTEGER: |
db7244bd | 171 | if (unset) { |
4a59fd13 PH |
172 | *(int *)opt->value = 0; |
173 | return 0; | |
174 | } | |
c43a2483 | 175 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { |
ffe659f9 PH |
176 | *(int *)opt->value = opt->defval; |
177 | return 0; | |
178 | } | |
1cc6985c PH |
179 | if (get_arg(p, opt, flags, &arg)) |
180 | return -1; | |
f7e68a08 NTND |
181 | if (!*arg) |
182 | return error(_("%s expects a numerical value"), | |
183 | optname(opt, flags)); | |
1cc6985c | 184 | *(int *)opt->value = strtol(arg, (char **)&s, 10); |
4a59fd13 | 185 | if (*s) |
9440b831 NTND |
186 | return error(_("%s expects a numerical value"), |
187 | optname(opt, flags)); | |
4a59fd13 PH |
188 | return 0; |
189 | ||
2a514ed8 CB |
190 | case OPTION_MAGNITUDE: |
191 | if (unset) { | |
192 | *(unsigned long *)opt->value = 0; | |
193 | return 0; | |
194 | } | |
195 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { | |
196 | *(unsigned long *)opt->value = opt->defval; | |
197 | return 0; | |
198 | } | |
199 | if (get_arg(p, opt, flags, &arg)) | |
200 | return -1; | |
201 | if (!git_parse_ulong(arg, opt->value)) | |
9440b831 NTND |
202 | return error(_("%s expects a non-negative integer value" |
203 | " with an optional k/m/g suffix"), | |
204 | optname(opt, flags)); | |
2a514ed8 CB |
205 | return 0; |
206 | ||
4a59fd13 | 207 | default: |
48a5499e | 208 | BUG("opt->type %d should not happen", opt->type); |
4a59fd13 PH |
209 | } |
210 | } | |
211 | ||
0025dde7 RS |
212 | struct parse_opt_cmdmode_list { |
213 | int value, *value_ptr; | |
214 | const struct option *opt; | |
215 | const char *arg; | |
216 | enum opt_parsed flags; | |
217 | struct parse_opt_cmdmode_list *next; | |
218 | }; | |
219 | ||
220 | static void build_cmdmode_list(struct parse_opt_ctx_t *ctx, | |
221 | const struct option *opts) | |
222 | { | |
223 | ctx->cmdmode_list = NULL; | |
224 | ||
225 | for (; opts->type != OPTION_END; opts++) { | |
226 | struct parse_opt_cmdmode_list *elem = ctx->cmdmode_list; | |
227 | int *value_ptr = opts->value; | |
228 | ||
229 | if (!(opts->flags & PARSE_OPT_CMDMODE) || !value_ptr) | |
230 | continue; | |
231 | ||
232 | while (elem && elem->value_ptr != value_ptr) | |
233 | elem = elem->next; | |
234 | if (elem) | |
235 | continue; | |
236 | ||
237 | CALLOC_ARRAY(elem, 1); | |
238 | elem->value_ptr = value_ptr; | |
239 | elem->value = *value_ptr; | |
240 | elem->next = ctx->cmdmode_list; | |
241 | ctx->cmdmode_list = elem; | |
242 | } | |
243 | } | |
244 | ||
245 | static char *optnamearg(const struct option *opt, const char *arg, | |
246 | enum opt_parsed flags) | |
247 | { | |
248 | if (flags & OPT_SHORT) | |
249 | return xstrfmt("-%c%s", opt->short_name, arg ? arg : ""); | |
250 | return xstrfmt("--%s%s%s%s", flags & OPT_UNSET ? "no-" : "", | |
251 | opt->long_name, arg ? "=" : "", arg ? arg : ""); | |
252 | } | |
253 | ||
254 | static enum parse_opt_result get_value(struct parse_opt_ctx_t *p, | |
255 | const struct option *opt, | |
256 | enum opt_parsed flags) | |
257 | { | |
258 | const char *arg = NULL; | |
259 | enum parse_opt_result result = do_get_value(p, opt, flags, &arg); | |
260 | struct parse_opt_cmdmode_list *elem = p->cmdmode_list; | |
261 | char *opt_name, *other_opt_name; | |
262 | ||
263 | for (; elem; elem = elem->next) { | |
264 | if (*elem->value_ptr == elem->value) | |
265 | continue; | |
266 | ||
267 | if (elem->opt && | |
268 | (elem->opt->flags | opt->flags) & PARSE_OPT_CMDMODE) | |
269 | break; | |
270 | ||
271 | elem->opt = opt; | |
272 | elem->arg = arg; | |
273 | elem->flags = flags; | |
274 | elem->value = *elem->value_ptr; | |
275 | } | |
276 | ||
277 | if (result || !elem) | |
278 | return result; | |
279 | ||
280 | opt_name = optnamearg(opt, arg, flags); | |
281 | other_opt_name = optnamearg(elem->opt, elem->arg, elem->flags); | |
282 | error(_("%s is incompatible with %s"), opt_name, other_opt_name); | |
283 | free(opt_name); | |
284 | free(other_opt_name); | |
285 | return -1; | |
286 | } | |
287 | ||
f41179f1 NTND |
288 | static enum parse_opt_result parse_short_opt(struct parse_opt_ctx_t *p, |
289 | const struct option *options) | |
4a59fd13 | 290 | { |
e0319ff5 RS |
291 | const struct option *numopt = NULL; |
292 | ||
4a59fd13 PH |
293 | for (; options->type != OPTION_END; options++) { |
294 | if (options->short_name == *p->opt) { | |
295 | p->opt = p->opt[1] ? p->opt + 1 : NULL; | |
0025dde7 | 296 | return get_value(p, options, OPT_SHORT); |
4a59fd13 | 297 | } |
e0319ff5 RS |
298 | |
299 | /* | |
300 | * Handle the numerical option later, explicit one-digit | |
301 | * options take precedence over it. | |
302 | */ | |
303 | if (options->type == OPTION_NUMBER) | |
304 | numopt = options; | |
305 | } | |
306 | if (numopt && isdigit(*p->opt)) { | |
307 | size_t len = 1; | |
308 | char *arg; | |
309 | int rc; | |
310 | ||
311 | while (isdigit(p->opt[len])) | |
312 | len++; | |
313 | arg = xmemdupz(p->opt, len); | |
314 | p->opt = p->opt[len] ? p->opt + len : NULL; | |
3ebbe289 NTND |
315 | if (numopt->callback) |
316 | rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; | |
317 | else | |
318 | rc = (*numopt->ll_callback)(p, numopt, arg, 0); | |
e0319ff5 RS |
319 | free(arg); |
320 | return rc; | |
4a59fd13 | 321 | } |
f41179f1 | 322 | return PARSE_OPT_UNKNOWN; |
4a59fd13 PH |
323 | } |
324 | ||
5c387428 NTND |
325 | static int has_string(const char *it, const char **array) |
326 | { | |
327 | while (*array) | |
328 | if (!strcmp(it, *(array++))) | |
329 | return 1; | |
330 | return 0; | |
331 | } | |
332 | ||
333 | static int is_alias(struct parse_opt_ctx_t *ctx, | |
334 | const struct option *one_opt, | |
335 | const struct option *another_opt) | |
336 | { | |
337 | const char **group; | |
338 | ||
339 | if (!ctx->alias_groups) | |
340 | return 0; | |
341 | ||
342 | if (!one_opt->long_name || !another_opt->long_name) | |
343 | return 0; | |
344 | ||
345 | for (group = ctx->alias_groups; *group; group += 3) { | |
346 | /* it and other are from the same family? */ | |
347 | if (has_string(one_opt->long_name, group) && | |
348 | has_string(another_opt->long_name, group)) | |
349 | return 1; | |
350 | } | |
351 | return 0; | |
352 | } | |
353 | ||
f41179f1 NTND |
354 | static enum parse_opt_result parse_long_opt( |
355 | struct parse_opt_ctx_t *p, const char *arg, | |
356 | const struct option *options) | |
4a59fd13 | 357 | { |
2c5495f7 | 358 | const char *arg_end = strchrnul(arg, '='); |
243e0614 | 359 | const struct option *abbrev_option = NULL, *ambiguous_option = NULL; |
d3428345 | 360 | enum opt_parsed abbrev_flags = OPT_LONG, ambiguous_flags = OPT_LONG; |
5825268d | 361 | int allow_abbrev = !(p->flags & PARSE_OPT_KEEP_UNKNOWN_OPT); |
7f275b91 | 362 | |
4a59fd13 | 363 | for (; options->type != OPTION_END; options++) { |
0f1930c5 | 364 | const char *rest, *long_name = options->long_name; |
d3428345 | 365 | enum opt_parsed flags = OPT_LONG, opt_flags = OPT_LONG; |
4a59fd13 | 366 | |
fa83cc83 SG |
367 | if (options->type == OPTION_SUBCOMMAND) |
368 | continue; | |
0f1930c5 | 369 | if (!long_name) |
4a59fd13 PH |
370 | continue; |
371 | ||
0f1930c5 | 372 | again: |
cf4fff57 JK |
373 | if (!skip_prefix(arg, long_name, &rest)) |
374 | rest = NULL; | |
4a59fd13 | 375 | if (!rest) { |
7f275b91 | 376 | /* abbreviated? */ |
5825268d | 377 | if (allow_abbrev && |
baa4adc6 | 378 | !strncmp(long_name, arg, arg_end - arg)) { |
7f275b91 | 379 | is_abbreviated: |
5c387428 NTND |
380 | if (abbrev_option && |
381 | !is_alias(p, abbrev_option, options)) { | |
243e0614 JS |
382 | /* |
383 | * If this is abbreviated, it is | |
384 | * ambiguous. So when there is no | |
385 | * exact match later, we need to | |
386 | * error out. | |
387 | */ | |
388 | ambiguous_option = abbrev_option; | |
389 | ambiguous_flags = abbrev_flags; | |
390 | } | |
7f275b91 JS |
391 | if (!(flags & OPT_UNSET) && *arg_end) |
392 | p->opt = arg_end + 1; | |
393 | abbrev_option = options; | |
0f1930c5 | 394 | abbrev_flags = flags ^ opt_flags; |
7f275b91 JS |
395 | continue; |
396 | } | |
6bbfd1fa AS |
397 | /* negation allowed? */ |
398 | if (options->flags & PARSE_OPT_NONEG) | |
399 | continue; | |
7f275b91 | 400 | /* negated and abbreviated very much? */ |
5825268d | 401 | if (allow_abbrev && starts_with("no-", arg)) { |
7f275b91 JS |
402 | flags |= OPT_UNSET; |
403 | goto is_abbreviated; | |
404 | } | |
405 | /* negated? */ | |
59556548 | 406 | if (!starts_with(arg, "no-")) { |
145136a9 | 407 | if (skip_prefix(long_name, "no-", &long_name)) { |
0f1930c5 RS |
408 | opt_flags |= OPT_UNSET; |
409 | goto again; | |
410 | } | |
4a59fd13 | 411 | continue; |
0f1930c5 | 412 | } |
4a59fd13 | 413 | flags |= OPT_UNSET; |
cf4fff57 JK |
414 | if (!skip_prefix(arg + 3, long_name, &rest)) { |
415 | /* abbreviated and negated? */ | |
5825268d RS |
416 | if (allow_abbrev && |
417 | starts_with(long_name, arg + 3)) | |
cf4fff57 JK |
418 | goto is_abbreviated; |
419 | else | |
420 | continue; | |
421 | } | |
4a59fd13 PH |
422 | } |
423 | if (*rest) { | |
424 | if (*rest != '=') | |
425 | continue; | |
426 | p->opt = rest + 1; | |
427 | } | |
0025dde7 | 428 | return get_value(p, options, flags ^ opt_flags); |
4a59fd13 | 429 | } |
243e0614 | 430 | |
b02e7d5d JS |
431 | if (disallow_abbreviated_options && (ambiguous_option || abbrev_option)) |
432 | die("disallowed abbreviated or ambiguous option '%.*s'", | |
433 | (int)(arg_end - arg), arg); | |
434 | ||
3bb0923f | 435 | if (ambiguous_option) { |
89003426 NTND |
436 | error(_("ambiguous option: %s " |
437 | "(could be --%s%s or --%s%s)"), | |
243e0614 JS |
438 | arg, |
439 | (ambiguous_flags & OPT_UNSET) ? "no-" : "", | |
440 | ambiguous_option->long_name, | |
441 | (abbrev_flags & OPT_UNSET) ? "no-" : "", | |
442 | abbrev_option->long_name); | |
f41179f1 | 443 | return PARSE_OPT_HELP; |
3bb0923f | 444 | } |
7f275b91 | 445 | if (abbrev_option) |
0025dde7 | 446 | return get_value(p, abbrev_option, abbrev_flags); |
f41179f1 | 447 | return PARSE_OPT_UNKNOWN; |
4a59fd13 PH |
448 | } |
449 | ||
68611f51 ÆAB |
450 | static enum parse_opt_result parse_nodash_opt(struct parse_opt_ctx_t *p, |
451 | const char *arg, | |
452 | const struct option *options) | |
51a9949e RS |
453 | { |
454 | for (; options->type != OPTION_END; options++) { | |
455 | if (!(options->flags & PARSE_OPT_NODASH)) | |
456 | continue; | |
51a9949e | 457 | if (options->short_name == arg[0] && arg[1] == '\0') |
0025dde7 | 458 | return get_value(p, options, OPT_SHORT); |
51a9949e | 459 | } |
68611f51 | 460 | return PARSE_OPT_ERROR; |
51a9949e RS |
461 | } |
462 | ||
fa83cc83 SG |
463 | static enum parse_opt_result parse_subcommand(const char *arg, |
464 | const struct option *options) | |
465 | { | |
466 | for (; options->type != OPTION_END; options++) | |
467 | if (options->type == OPTION_SUBCOMMAND && | |
468 | !strcmp(options->long_name, arg)) { | |
469 | *(parse_opt_subcommand_fn **)options->value = options->subcommand_fn; | |
470 | return PARSE_OPT_SUBCOMMAND; | |
471 | } | |
472 | ||
473 | return PARSE_OPT_UNKNOWN; | |
474 | } | |
475 | ||
1121a878 | 476 | static void check_typos(const char *arg, const struct option *options) |
3a9f0f41 PH |
477 | { |
478 | if (strlen(arg) < 3) | |
479 | return; | |
480 | ||
59556548 | 481 | if (starts_with(arg, "no-")) { |
395518cf | 482 | error(_("did you mean `--%s` (with two dashes)?"), arg); |
3a9f0f41 PH |
483 | exit(129); |
484 | } | |
485 | ||
486 | for (; options->type != OPTION_END; options++) { | |
487 | if (!options->long_name) | |
488 | continue; | |
59556548 | 489 | if (starts_with(options->long_name, arg)) { |
395518cf | 490 | error(_("did you mean `--%s` (with two dashes)?"), arg); |
3a9f0f41 PH |
491 | exit(129); |
492 | } | |
493 | } | |
494 | } | |
495 | ||
cb9d398c PH |
496 | static void parse_options_check(const struct option *opts) |
497 | { | |
af465af8 | 498 | char short_opts[128]; |
fa83cc83 | 499 | void *subcommand_value = NULL; |
cb9d398c | 500 | |
af465af8 | 501 | memset(short_opts, '\0', sizeof(short_opts)); |
cb9d398c PH |
502 | for (; opts->type != OPTION_END; opts++) { |
503 | if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && | |
1e5ce570 | 504 | (opts->flags & PARSE_OPT_OPTARG)) |
53ca5694 ÆAB |
505 | optbug(opts, "uses incompatible flags " |
506 | "LASTARG_DEFAULT and OPTARG"); | |
af465af8 JH |
507 | if (opts->short_name) { |
508 | if (0x7F <= opts->short_name) | |
53ca5694 | 509 | optbug(opts, "invalid short name"); |
af465af8 | 510 | else if (short_opts[opts->short_name]++) |
53ca5694 | 511 | optbug(opts, "short name already used"); |
af465af8 | 512 | } |
a02dd4ff JN |
513 | if (opts->flags & PARSE_OPT_NODASH && |
514 | ((opts->flags & PARSE_OPT_OPTARG) || | |
515 | !(opts->flags & PARSE_OPT_NOARG) || | |
516 | !(opts->flags & PARSE_OPT_NONEG) || | |
517 | opts->long_name)) | |
53ca5694 ÆAB |
518 | optbug(opts, "uses feature " |
519 | "not supported for dashless options"); | |
3284b938 RS |
520 | if (opts->type == OPTION_SET_INT && !opts->defval && |
521 | opts->long_name && !(opts->flags & PARSE_OPT_NONEG)) | |
522 | optbug(opts, "OPTION_SET_INT 0 should not be negatable"); | |
5c400ed2 | 523 | switch (opts->type) { |
b04ba2bb | 524 | case OPTION_COUNTUP: |
5c400ed2 JN |
525 | case OPTION_BIT: |
526 | case OPTION_NEGBIT: | |
527 | case OPTION_SET_INT: | |
5c400ed2 JN |
528 | case OPTION_NUMBER: |
529 | if ((opts->flags & PARSE_OPT_OPTARG) || | |
530 | !(opts->flags & PARSE_OPT_NOARG)) | |
53ca5694 | 531 | optbug(opts, "should not accept an argument"); |
bf3ff338 NTND |
532 | break; |
533 | case OPTION_CALLBACK: | |
3ebbe289 | 534 | if (!opts->callback && !opts->ll_callback) |
5b2f5d92 ÆAB |
535 | optbug(opts, "OPTION_CALLBACK needs one callback"); |
536 | else if (opts->callback && opts->ll_callback) | |
537 | optbug(opts, "OPTION_CALLBACK can't have two callbacks"); | |
bf3ff338 NTND |
538 | break; |
539 | case OPTION_LOWLEVEL_CALLBACK: | |
540 | if (!opts->ll_callback) | |
5b2f5d92 | 541 | optbug(opts, "OPTION_LOWLEVEL_CALLBACK needs a callback"); |
bf3ff338 | 542 | if (opts->callback) |
5b2f5d92 | 543 | optbug(opts, "OPTION_LOWLEVEL_CALLBACK needs no high level callback"); |
bf3ff338 | 544 | break; |
5c387428 | 545 | case OPTION_ALIAS: |
5b2f5d92 ÆAB |
546 | optbug(opts, "OPT_ALIAS() should not remain at this point. " |
547 | "Are you using parse_options_step() directly?\n" | |
548 | "That case is not supported yet."); | |
549 | break; | |
fa83cc83 SG |
550 | case OPTION_SUBCOMMAND: |
551 | if (!opts->value || !opts->subcommand_fn) | |
552 | optbug(opts, "OPTION_SUBCOMMAND needs a value and a subcommand function"); | |
553 | if (!subcommand_value) | |
554 | subcommand_value = opts->value; | |
555 | else if (subcommand_value != opts->value) | |
556 | optbug(opts, "all OPTION_SUBCOMMANDs need the same value"); | |
557 | break; | |
5c400ed2 JN |
558 | default: |
559 | ; /* ok. (usually accepts an argument) */ | |
560 | } | |
b6c2a0d4 JH |
561 | if (opts->argh && |
562 | strcspn(opts->argh, " _") != strlen(opts->argh)) | |
53ca5694 | 563 | optbug(opts, "multi-word argh should use dash to separate words"); |
cb9d398c | 564 | } |
53ca5694 | 565 | BUG_if_bug("invalid 'struct option'"); |
cb9d398c PH |
566 | } |
567 | ||
fa83cc83 SG |
568 | static int has_subcommands(const struct option *options) |
569 | { | |
570 | for (; options->type != OPTION_END; options++) | |
571 | if (options->type == OPTION_SUBCOMMAND) | |
572 | return 1; | |
573 | return 0; | |
574 | } | |
575 | ||
5c387428 NTND |
576 | static void parse_options_start_1(struct parse_opt_ctx_t *ctx, |
577 | int argc, const char **argv, const char *prefix, | |
3f9ab7cc ÆAB |
578 | const struct option *options, |
579 | enum parse_opt_flags flags) | |
7e7bbcb4 | 580 | { |
202fbb33 NTND |
581 | ctx->argc = argc; |
582 | ctx->argv = argv; | |
583 | if (!(flags & PARSE_OPT_ONE_SHOT)) { | |
584 | ctx->argc--; | |
585 | ctx->argv++; | |
586 | } | |
587 | ctx->total = ctx->argc; | |
588 | ctx->out = argv; | |
37782920 | 589 | ctx->prefix = prefix; |
a32a4eaa | 590 | ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); |
7e7bbcb4 | 591 | ctx->flags = flags; |
fa83cc83 SG |
592 | ctx->has_subcommands = has_subcommands(options); |
593 | if (!ctx->has_subcommands && (flags & PARSE_OPT_SUBCOMMAND_OPTIONAL)) | |
594 | BUG("Using PARSE_OPT_SUBCOMMAND_OPTIONAL without subcommands"); | |
595 | if (ctx->has_subcommands) { | |
596 | if (flags & PARSE_OPT_STOP_AT_NON_OPTION) | |
597 | BUG("subcommands are incompatible with PARSE_OPT_STOP_AT_NON_OPTION"); | |
598 | if (!(flags & PARSE_OPT_SUBCOMMAND_OPTIONAL)) { | |
599 | if (flags & PARSE_OPT_KEEP_UNKNOWN_OPT) | |
600 | BUG("subcommands are incompatible with PARSE_OPT_KEEP_UNKNOWN_OPT unless in combination with PARSE_OPT_SUBCOMMAND_OPTIONAL"); | |
601 | if (flags & PARSE_OPT_KEEP_DASHDASH) | |
602 | BUG("subcommands are incompatible with PARSE_OPT_KEEP_DASHDASH unless in combination with PARSE_OPT_SUBCOMMAND_OPTIONAL"); | |
603 | } | |
604 | } | |
99d86d60 | 605 | if ((flags & PARSE_OPT_KEEP_UNKNOWN_OPT) && |
202fbb33 NTND |
606 | (flags & PARSE_OPT_STOP_AT_NON_OPTION) && |
607 | !(flags & PARSE_OPT_ONE_SHOT)) | |
48a5499e | 608 | BUG("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); |
202fbb33 NTND |
609 | if ((flags & PARSE_OPT_ONE_SHOT) && |
610 | (flags & PARSE_OPT_KEEP_ARGV0)) | |
611 | BUG("Can't keep argv0 if you don't have it"); | |
9ca1169f | 612 | parse_options_check(options); |
0025dde7 | 613 | build_cmdmode_list(ctx, options); |
7e7bbcb4 PH |
614 | } |
615 | ||
5c387428 NTND |
616 | void parse_options_start(struct parse_opt_ctx_t *ctx, |
617 | int argc, const char **argv, const char *prefix, | |
3f9ab7cc ÆAB |
618 | const struct option *options, |
619 | enum parse_opt_flags flags) | |
5c387428 NTND |
620 | { |
621 | memset(ctx, 0, sizeof(*ctx)); | |
622 | parse_options_start_1(ctx, argc, argv, prefix, options, flags); | |
623 | } | |
624 | ||
a0abe5e3 RZ |
625 | static void show_negated_gitcomp(const struct option *opts, int show_all, |
626 | int nr_noopts) | |
b221b5ab NTND |
627 | { |
628 | int printed_dashdash = 0; | |
629 | ||
630 | for (; opts->type != OPTION_END; opts++) { | |
631 | int has_unset_form = 0; | |
632 | const char *name; | |
633 | ||
634 | if (!opts->long_name) | |
635 | continue; | |
a0abe5e3 RZ |
636 | if (!show_all && |
637 | (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE))) | |
b221b5ab NTND |
638 | continue; |
639 | if (opts->flags & PARSE_OPT_NONEG) | |
640 | continue; | |
641 | ||
642 | switch (opts->type) { | |
643 | case OPTION_STRING: | |
644 | case OPTION_FILENAME: | |
645 | case OPTION_INTEGER: | |
646 | case OPTION_MAGNITUDE: | |
647 | case OPTION_CALLBACK: | |
648 | case OPTION_BIT: | |
649 | case OPTION_NEGBIT: | |
650 | case OPTION_COUNTUP: | |
651 | case OPTION_SET_INT: | |
652 | has_unset_form = 1; | |
653 | break; | |
654 | default: | |
655 | break; | |
656 | } | |
657 | if (!has_unset_form) | |
658 | continue; | |
659 | ||
660 | if (skip_prefix(opts->long_name, "no-", &name)) { | |
661 | if (nr_noopts < 0) | |
662 | printf(" --%s", name); | |
663 | } else if (nr_noopts >= 0) { | |
664 | if (nr_noopts && !printed_dashdash) { | |
665 | printf(" --"); | |
666 | printed_dashdash = 1; | |
667 | } | |
668 | printf(" --no-%s", opts->long_name); | |
669 | nr_noopts++; | |
670 | } | |
671 | } | |
672 | } | |
673 | ||
a0abe5e3 | 674 | static int show_gitcomp(const struct option *opts, int show_all) |
b9d7f4b4 | 675 | { |
b221b5ab NTND |
676 | const struct option *original_opts = opts; |
677 | int nr_noopts = 0; | |
678 | ||
b9d7f4b4 | 679 | for (; opts->type != OPTION_END; opts++) { |
fa83cc83 | 680 | const char *prefix = "--"; |
b9d7f4b4 NTND |
681 | const char *suffix = ""; |
682 | ||
683 | if (!opts->long_name) | |
684 | continue; | |
a0abe5e3 | 685 | if (!show_all && |
ca2d62b7 | 686 | (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE | PARSE_OPT_FROM_ALIAS))) |
b9d7f4b4 NTND |
687 | continue; |
688 | ||
689 | switch (opts->type) { | |
fa83cc83 SG |
690 | case OPTION_SUBCOMMAND: |
691 | prefix = ""; | |
692 | break; | |
b9d7f4b4 NTND |
693 | case OPTION_GROUP: |
694 | continue; | |
695 | case OPTION_STRING: | |
696 | case OPTION_FILENAME: | |
697 | case OPTION_INTEGER: | |
698 | case OPTION_MAGNITUDE: | |
699 | case OPTION_CALLBACK: | |
700 | if (opts->flags & PARSE_OPT_NOARG) | |
701 | break; | |
702 | if (opts->flags & PARSE_OPT_OPTARG) | |
703 | break; | |
704 | if (opts->flags & PARSE_OPT_LASTARG_DEFAULT) | |
705 | break; | |
706 | suffix = "="; | |
707 | break; | |
708 | default: | |
709 | break; | |
710 | } | |
ebc4a04e NTND |
711 | if (opts->flags & PARSE_OPT_COMP_ARG) |
712 | suffix = "="; | |
b221b5ab NTND |
713 | if (starts_with(opts->long_name, "no-")) |
714 | nr_noopts++; | |
fa83cc83 SG |
715 | printf("%s%s%s%s", opts == original_opts ? "" : " ", |
716 | prefix, opts->long_name, suffix); | |
b9d7f4b4 | 717 | } |
a0abe5e3 RZ |
718 | show_negated_gitcomp(original_opts, show_all, -1); |
719 | show_negated_gitcomp(original_opts, show_all, nr_noopts); | |
b9d7f4b4 | 720 | fputc('\n', stdout); |
a92ec7ef | 721 | return PARSE_OPT_COMPLETE; |
b9d7f4b4 NTND |
722 | } |
723 | ||
5c387428 NTND |
724 | /* |
725 | * Scan and may produce a new option[] array, which should be used | |
726 | * instead of the original 'options'. | |
727 | * | |
15beaaa3 | 728 | * Right now this is only used to preprocess and substitute |
5c387428 | 729 | * OPTION_ALIAS. |
64cc539f AH |
730 | * |
731 | * The returned options should be freed using free_preprocessed_options. | |
5c387428 NTND |
732 | */ |
733 | static struct option *preprocess_options(struct parse_opt_ctx_t *ctx, | |
734 | const struct option *options) | |
735 | { | |
736 | struct option *newopt; | |
737 | int i, nr, alias; | |
738 | int nr_aliases = 0; | |
739 | ||
740 | for (nr = 0; options[nr].type != OPTION_END; nr++) { | |
741 | if (options[nr].type == OPTION_ALIAS) | |
742 | nr_aliases++; | |
743 | } | |
744 | ||
745 | if (!nr_aliases) | |
746 | return NULL; | |
747 | ||
6e578410 | 748 | DUP_ARRAY(newopt, options, nr + 1); |
5c387428 NTND |
749 | |
750 | /* each alias has two string pointers and NULL */ | |
751 | CALLOC_ARRAY(ctx->alias_groups, 3 * (nr_aliases + 1)); | |
752 | ||
753 | for (alias = 0, i = 0; i < nr; i++) { | |
754 | int short_name; | |
755 | const char *long_name; | |
756 | const char *source; | |
7c280589 | 757 | struct strbuf help = STRBUF_INIT; |
5c387428 NTND |
758 | int j; |
759 | ||
760 | if (newopt[i].type != OPTION_ALIAS) | |
761 | continue; | |
762 | ||
763 | short_name = newopt[i].short_name; | |
764 | long_name = newopt[i].long_name; | |
765 | source = newopt[i].value; | |
766 | ||
767 | if (!long_name) | |
768 | BUG("An alias must have long option name"); | |
7c280589 | 769 | strbuf_addf(&help, _("alias of --%s"), source); |
5c387428 NTND |
770 | |
771 | for (j = 0; j < nr; j++) { | |
772 | const char *name = options[j].long_name; | |
773 | ||
774 | if (!name || strcmp(name, source)) | |
775 | continue; | |
776 | ||
777 | if (options[j].type == OPTION_ALIAS) | |
778 | BUG("No please. Nested aliases are not supported."); | |
779 | ||
5c387428 NTND |
780 | memcpy(newopt + i, options + j, sizeof(*newopt)); |
781 | newopt[i].short_name = short_name; | |
782 | newopt[i].long_name = long_name; | |
7c280589 | 783 | newopt[i].help = strbuf_detach(&help, NULL); |
64cc539f | 784 | newopt[i].flags |= PARSE_OPT_FROM_ALIAS; |
5c387428 NTND |
785 | break; |
786 | } | |
787 | ||
788 | if (j == nr) | |
789 | BUG("could not find source option '%s' of alias '%s'", | |
790 | source, newopt[i].long_name); | |
791 | ctx->alias_groups[alias * 3 + 0] = newopt[i].long_name; | |
792 | ctx->alias_groups[alias * 3 + 1] = options[j].long_name; | |
793 | ctx->alias_groups[alias * 3 + 2] = NULL; | |
794 | alias++; | |
795 | } | |
796 | ||
797 | return newopt; | |
798 | } | |
799 | ||
64cc539f AH |
800 | static void free_preprocessed_options(struct option *options) |
801 | { | |
802 | int i; | |
803 | ||
804 | if (!options) | |
805 | return; | |
806 | ||
807 | for (i = 0; options[i].type != OPTION_END; i++) { | |
808 | if (options[i].flags & PARSE_OPT_FROM_ALIAS) | |
809 | free((void *)options[i].help); | |
810 | } | |
811 | free(options); | |
812 | } | |
813 | ||
352e7613 ÆAB |
814 | static enum parse_opt_result usage_with_options_internal(struct parse_opt_ctx_t *, |
815 | const char * const *, | |
816 | const struct option *, | |
817 | int, int); | |
dd3bf0f4 | 818 | |
352e7613 ÆAB |
819 | enum parse_opt_result parse_options_step(struct parse_opt_ctx_t *ctx, |
820 | const struct option *options, | |
821 | const char * const usagestr[]) | |
4a59fd13 | 822 | { |
b92891f9 RS |
823 | int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); |
824 | ||
26141b5b PH |
825 | /* we must reset ->opt, unknown short option leave it dangling */ |
826 | ctx->opt = NULL; | |
827 | ||
ff43ec3e PH |
828 | for (; ctx->argc; ctx->argc--, ctx->argv++) { |
829 | const char *arg = ctx->argv[0]; | |
4a59fd13 | 830 | |
202fbb33 NTND |
831 | if (ctx->flags & PARSE_OPT_ONE_SHOT && |
832 | ctx->argc != ctx->total) | |
833 | break; | |
834 | ||
4a59fd13 | 835 | if (*arg != '-' || !arg[1]) { |
51a9949e RS |
836 | if (parse_nodash_opt(ctx, arg, options) == 0) |
837 | continue; | |
fa83cc83 SG |
838 | if (!ctx->has_subcommands) { |
839 | if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) | |
840 | return PARSE_OPT_NON_OPTION; | |
841 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
842 | continue; | |
843 | } | |
844 | switch (parse_subcommand(arg, options)) { | |
845 | case PARSE_OPT_SUBCOMMAND: | |
846 | return PARSE_OPT_SUBCOMMAND; | |
847 | case PARSE_OPT_UNKNOWN: | |
848 | if (ctx->flags & PARSE_OPT_SUBCOMMAND_OPTIONAL) | |
849 | /* | |
850 | * arg is neither a short or long | |
851 | * option nor a subcommand. Since | |
852 | * this command has a default | |
853 | * operation mode, we have to treat | |
854 | * this arg and all remaining args | |
855 | * as args meant to that default | |
856 | * operation mode. | |
857 | * So we are done parsing. | |
858 | */ | |
859 | return PARSE_OPT_DONE; | |
860 | error(_("unknown subcommand: `%s'"), arg); | |
861 | usage_with_options(usagestr, options); | |
862 | case PARSE_OPT_COMPLETE: | |
863 | case PARSE_OPT_HELP: | |
864 | case PARSE_OPT_ERROR: | |
865 | case PARSE_OPT_DONE: | |
866 | case PARSE_OPT_NON_OPTION: | |
867 | /* Impossible. */ | |
868 | BUG("parse_subcommand() cannot return these"); | |
869 | } | |
4a59fd13 PH |
870 | } |
871 | ||
5ad0d3d5 RS |
872 | /* lone -h asks for help */ |
873 | if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h")) | |
874 | goto show_usage; | |
875 | ||
a0abe5e3 RZ |
876 | /* |
877 | * lone --git-completion-helper and --git-completion-helper-all | |
878 | * are asked by git-completion.bash | |
879 | */ | |
880 | if (ctx->total == 1 && !strcmp(arg, "--git-completion-helper")) | |
881 | return show_gitcomp(options, 0); | |
882 | if (ctx->total == 1 && !strcmp(arg, "--git-completion-helper-all")) | |
883 | return show_gitcomp(options, 1); | |
b9d7f4b4 | 884 | |
4a59fd13 | 885 | if (arg[1] != '-') { |
ff43ec3e | 886 | ctx->opt = arg + 1; |
07fe54db | 887 | switch (parse_short_opt(ctx, options)) { |
f41179f1 | 888 | case PARSE_OPT_ERROR: |
3bb0923f | 889 | return PARSE_OPT_ERROR; |
f41179f1 | 890 | case PARSE_OPT_UNKNOWN: |
38916c5b RS |
891 | if (ctx->opt) |
892 | check_typos(arg + 1, options); | |
5ad0d3d5 RS |
893 | if (internal_help && *ctx->opt == 'h') |
894 | goto show_usage; | |
b5ce3a54 | 895 | goto unknown; |
f41179f1 | 896 | case PARSE_OPT_NON_OPTION: |
fa83cc83 | 897 | case PARSE_OPT_SUBCOMMAND: |
f41179f1 NTND |
898 | case PARSE_OPT_HELP: |
899 | case PARSE_OPT_COMPLETE: | |
900 | BUG("parse_short_opt() cannot return these"); | |
901 | case PARSE_OPT_DONE: | |
902 | break; | |
07fe54db | 903 | } |
ff43ec3e | 904 | if (ctx->opt) |
3a9f0f41 | 905 | check_typos(arg + 1, options); |
ff43ec3e | 906 | while (ctx->opt) { |
07fe54db | 907 | switch (parse_short_opt(ctx, options)) { |
f41179f1 | 908 | case PARSE_OPT_ERROR: |
3bb0923f | 909 | return PARSE_OPT_ERROR; |
f41179f1 | 910 | case PARSE_OPT_UNKNOWN: |
5ad0d3d5 RS |
911 | if (internal_help && *ctx->opt == 'h') |
912 | goto show_usage; | |
913 | ||
26141b5b PH |
914 | /* fake a short option thing to hide the fact that we may have |
915 | * started to parse aggregated stuff | |
916 | * | |
917 | * This is leaky, too bad. | |
918 | */ | |
919 | ctx->argv[0] = xstrdup(ctx->opt - 1); | |
920 | *(char *)ctx->argv[0] = '-'; | |
b5ce3a54 | 921 | goto unknown; |
f41179f1 | 922 | case PARSE_OPT_NON_OPTION: |
fa83cc83 | 923 | case PARSE_OPT_SUBCOMMAND: |
f41179f1 NTND |
924 | case PARSE_OPT_COMPLETE: |
925 | case PARSE_OPT_HELP: | |
926 | BUG("parse_short_opt() cannot return these"); | |
927 | case PARSE_OPT_DONE: | |
928 | break; | |
07fe54db | 929 | } |
3a9f0f41 | 930 | } |
4a59fd13 PH |
931 | continue; |
932 | } | |
933 | ||
51b4594b JK |
934 | if (!arg[2] /* "--" */ || |
935 | !strcmp(arg + 2, "end-of-options")) { | |
ff43ec3e PH |
936 | if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { |
937 | ctx->argc--; | |
938 | ctx->argv++; | |
4a59fd13 PH |
939 | } |
940 | break; | |
941 | } | |
942 | ||
b92891f9 | 943 | if (internal_help && !strcmp(arg + 2, "help-all")) |
47e9cd28 | 944 | return usage_with_options_internal(ctx, usagestr, options, 1, 0); |
b92891f9 | 945 | if (internal_help && !strcmp(arg + 2, "help")) |
ac20ff6d | 946 | goto show_usage; |
07fe54db | 947 | switch (parse_long_opt(ctx, arg + 2, options)) { |
f41179f1 | 948 | case PARSE_OPT_ERROR: |
3bb0923f | 949 | return PARSE_OPT_ERROR; |
f41179f1 | 950 | case PARSE_OPT_UNKNOWN: |
b5ce3a54 | 951 | goto unknown; |
f41179f1 | 952 | case PARSE_OPT_HELP: |
3bb0923f | 953 | goto show_usage; |
f41179f1 | 954 | case PARSE_OPT_NON_OPTION: |
fa83cc83 | 955 | case PARSE_OPT_SUBCOMMAND: |
f41179f1 NTND |
956 | case PARSE_OPT_COMPLETE: |
957 | BUG("parse_long_opt() cannot return these"); | |
958 | case PARSE_OPT_DONE: | |
959 | break; | |
07fe54db | 960 | } |
b5ce3a54 RS |
961 | continue; |
962 | unknown: | |
202fbb33 NTND |
963 | if (ctx->flags & PARSE_OPT_ONE_SHOT) |
964 | break; | |
fa83cc83 SG |
965 | if (ctx->has_subcommands && |
966 | (ctx->flags & PARSE_OPT_SUBCOMMAND_OPTIONAL) && | |
967 | (ctx->flags & PARSE_OPT_KEEP_UNKNOWN_OPT)) { | |
968 | /* | |
969 | * Found an unknown option given to a command with | |
970 | * subcommands that has a default operation mode: | |
971 | * we treat this option and all remaining args as | |
972 | * arguments meant to that default operation mode. | |
973 | * So we are done parsing. | |
974 | */ | |
975 | return PARSE_OPT_DONE; | |
976 | } | |
99d86d60 | 977 | if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN_OPT)) |
b5ce3a54 RS |
978 | return PARSE_OPT_UNKNOWN; |
979 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
980 | ctx->opt = NULL; | |
ff43ec3e PH |
981 | } |
982 | return PARSE_OPT_DONE; | |
ac20ff6d | 983 | |
ac20ff6d | 984 | show_usage: |
3bb0923f | 985 | return usage_with_options_internal(ctx, usagestr, options, 0, 0); |
ff43ec3e PH |
986 | } |
987 | ||
988 | int parse_options_end(struct parse_opt_ctx_t *ctx) | |
989 | { | |
202fbb33 NTND |
990 | if (ctx->flags & PARSE_OPT_ONE_SHOT) |
991 | return ctx->total - ctx->argc; | |
992 | ||
f919ffeb | 993 | MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc); |
ff43ec3e PH |
994 | ctx->out[ctx->cpidx + ctx->argc] = NULL; |
995 | return ctx->cpidx + ctx->argc; | |
996 | } | |
997 | ||
06a199f3 ÆAB |
998 | int parse_options(int argc, const char **argv, |
999 | const char *prefix, | |
1000 | const struct option *options, | |
1001 | const char * const usagestr[], | |
1002 | enum parse_opt_flags flags) | |
ff43ec3e PH |
1003 | { |
1004 | struct parse_opt_ctx_t ctx; | |
5c387428 | 1005 | struct option *real_options; |
ff43ec3e | 1006 | |
b02e7d5d JS |
1007 | disallow_abbreviated_options = |
1008 | git_env_bool("GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS", 0); | |
1009 | ||
5c387428 NTND |
1010 | memset(&ctx, 0, sizeof(ctx)); |
1011 | real_options = preprocess_options(&ctx, options); | |
1012 | if (real_options) | |
1013 | options = real_options; | |
1014 | parse_options_start_1(&ctx, argc, argv, prefix, options, flags); | |
ff43ec3e PH |
1015 | switch (parse_options_step(&ctx, options, usagestr)) { |
1016 | case PARSE_OPT_HELP: | |
3bb0923f | 1017 | case PARSE_OPT_ERROR: |
ff43ec3e | 1018 | exit(129); |
a92ec7ef NTND |
1019 | case PARSE_OPT_COMPLETE: |
1020 | exit(0); | |
979240fe | 1021 | case PARSE_OPT_NON_OPTION: |
fa83cc83 SG |
1022 | case PARSE_OPT_SUBCOMMAND: |
1023 | break; | |
ff43ec3e | 1024 | case PARSE_OPT_DONE: |
fa83cc83 SG |
1025 | if (ctx.has_subcommands && |
1026 | !(flags & PARSE_OPT_SUBCOMMAND_OPTIONAL)) { | |
1027 | error(_("need a subcommand")); | |
1028 | usage_with_options(usagestr, options); | |
1029 | } | |
ff43ec3e | 1030 | break; |
1b887353 | 1031 | case PARSE_OPT_UNKNOWN: |
07fe54db | 1032 | if (ctx.argv[0][1] == '-') { |
89003426 | 1033 | error(_("unknown option `%s'"), ctx.argv[0] + 2); |
b141a478 | 1034 | } else if (isascii(*ctx.opt)) { |
89003426 | 1035 | error(_("unknown switch `%c'"), *ctx.opt); |
b141a478 | 1036 | } else { |
89003426 | 1037 | error(_("unknown non-ascii option in string: `%s'"), |
b141a478 | 1038 | ctx.argv[0]); |
07fe54db PH |
1039 | } |
1040 | usage_with_options(usagestr, options); | |
4a59fd13 PH |
1041 | } |
1042 | ||
5c327502 | 1043 | precompose_argv_prefix(argc, argv, NULL); |
64cc539f | 1044 | free_preprocessed_options(real_options); |
5c387428 | 1045 | free(ctx.alias_groups); |
0025dde7 RS |
1046 | for (struct parse_opt_cmdmode_list *elem = ctx.cmdmode_list; elem;) { |
1047 | struct parse_opt_cmdmode_list *next = elem->next; | |
1048 | free(elem); | |
1049 | elem = next; | |
1050 | } | |
7e7bbcb4 | 1051 | return parse_options_end(&ctx); |
4a59fd13 | 1052 | } |
d7a38c54 | 1053 | |
9c7304e3 | 1054 | static int usage_argh(const struct option *opts, FILE *outfile) |
29f25d49 SB |
1055 | { |
1056 | const char *s; | |
5f0df44c RS |
1057 | int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
1058 | !opts->argh || !!strpbrk(opts->argh, "()<>[]|"); | |
29f25d49 SB |
1059 | if (opts->flags & PARSE_OPT_OPTARG) |
1060 | if (opts->long_name) | |
1061 | s = literal ? "[=%s]" : "[=<%s>]"; | |
1062 | else | |
1063 | s = literal ? "[%s]" : "[<%s>]"; | |
1064 | else | |
1065 | s = literal ? " %s" : " <%s>"; | |
c0821965 | 1066 | return utf8_fprintf(outfile, s, opts->argh ? _(opts->argh) : _("...")); |
29f25d49 SB |
1067 | } |
1068 | ||
652a6b15 RS |
1069 | static int usage_indent(FILE *outfile) |
1070 | { | |
1071 | return fprintf(outfile, " "); | |
1072 | } | |
1073 | ||
311c8ff1 | 1074 | #define USAGE_OPTS_WIDTH 26 |
d7a38c54 | 1075 | |
652a6b15 RS |
1076 | static void usage_padding(FILE *outfile, size_t pos) |
1077 | { | |
311c8ff1 RS |
1078 | if (pos < USAGE_OPTS_WIDTH) |
1079 | fprintf(outfile, "%*s", USAGE_OPTS_WIDTH - (int)pos, ""); | |
1080 | else | |
1081 | fprintf(outfile, "\n%*s", USAGE_OPTS_WIDTH, ""); | |
652a6b15 RS |
1082 | } |
1083 | ||
2a409a1d RS |
1084 | static const struct option *find_option_by_long_name(const struct option *opts, |
1085 | const char *long_name) | |
1086 | { | |
1087 | for (; opts->type != OPTION_END; opts++) { | |
1088 | if (opts->long_name && !strcmp(opts->long_name, long_name)) | |
1089 | return opts; | |
1090 | } | |
1091 | return NULL; | |
1092 | } | |
d7a38c54 | 1093 | |
352e7613 ÆAB |
1094 | static enum parse_opt_result usage_with_options_internal(struct parse_opt_ctx_t *ctx, |
1095 | const char * const *usagestr, | |
1096 | const struct option *opts, | |
1097 | int full, int err) | |
d7a38c54 | 1098 | { |
2a409a1d | 1099 | const struct option *all_opts = opts; |
9c7304e3 | 1100 | FILE *outfile = err ? stderr : stdout; |
a6304fa4 | 1101 | int need_newline; |
9c7304e3 | 1102 | |
4631cfc2 ÆAB |
1103 | const char *usage_prefix = _("usage: %s"); |
1104 | /* | |
1105 | * The translation could be anything, but we can count on | |
1106 | * msgfmt(1)'s --check option to have asserted that "%s" is in | |
1107 | * the translation. So compute the length of the "usage: " | |
1108 | * part. We are assuming that the translator wasn't overly | |
1109 | * clever and used e.g. "%1$s" instead of "%s", there's only | |
1110 | * one "%s" in "usage_prefix" above, so there's no reason to | |
1111 | * do so even with a RTL language. | |
1112 | */ | |
1113 | size_t usage_len = strlen(usage_prefix) - strlen("%s"); | |
1114 | /* | |
1115 | * TRANSLATORS: the colon here should align with the | |
1116 | * one in "usage: %s" translation. | |
1117 | */ | |
1118 | const char *or_prefix = _(" or: %s"); | |
1119 | /* | |
1120 | * TRANSLATORS: You should only need to translate this format | |
1121 | * string if your language is a RTL language (e.g. Arabic, | |
1122 | * Hebrew etc.), not if it's a LTR language (e.g. German, | |
1123 | * Russian, Chinese etc.). | |
1124 | * | |
1125 | * When a translated usage string has an embedded "\n" it's | |
1126 | * because options have wrapped to the next line. The line | |
1127 | * after the "\n" will then be padded to align with the | |
1128 | * command name, such as N_("git cmd [opt]\n<8 | |
1129 | * spaces>[opt2]"), where the 8 spaces are the same length as | |
1130 | * "git cmd ". | |
1131 | * | |
1132 | * This format string prints out that already-translated | |
1133 | * line. The "%*s" is whitespace padding to account for the | |
1134 | * padding at the start of the line that we add in this | |
1135 | * function. The "%s" is a line in the (hopefully already | |
1136 | * translated) N_() usage string, which contained embedded | |
1137 | * newlines before we split it up. | |
1138 | */ | |
1139 | const char *usage_continued = _("%*s%s"); | |
1140 | const char *prefix = usage_prefix; | |
1141 | int saw_empty_line = 0; | |
1142 | ||
49b61802 RS |
1143 | if (!usagestr) |
1144 | return PARSE_OPT_HELP; | |
1145 | ||
47e9cd28 TR |
1146 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
1147 | fprintf(outfile, "cat <<\\EOF\n"); | |
1148 | ||
44d86e91 | 1149 | while (*usagestr) { |
4631cfc2 ÆAB |
1150 | const char *str = _(*usagestr++); |
1151 | struct string_list list = STRING_LIST_INIT_DUP; | |
1152 | unsigned int j; | |
1153 | ||
1154 | if (!saw_empty_line && !*str) | |
1155 | saw_empty_line = 1; | |
1156 | ||
1157 | string_list_split(&list, str, '\n', -1); | |
1158 | for (j = 0; j < list.nr; j++) { | |
1159 | const char *line = list.items[j].string; | |
1160 | ||
1161 | if (saw_empty_line && *line) | |
1162 | fprintf_ln(outfile, _(" %s"), line); | |
1163 | else if (saw_empty_line) | |
1164 | fputc('\n', outfile); | |
1165 | else if (!j) | |
1166 | fprintf_ln(outfile, prefix, line); | |
1167 | else | |
1168 | fprintf_ln(outfile, usage_continued, | |
1169 | (int)usage_len, "", line); | |
1170 | } | |
1171 | string_list_clear(&list, 0); | |
1172 | ||
1173 | prefix = or_prefix; | |
44d86e91 | 1174 | } |
d7a38c54 | 1175 | |
a6304fa4 | 1176 | need_newline = 1; |
d7a38c54 PH |
1177 | |
1178 | for (; opts->type != OPTION_END; opts++) { | |
1179 | size_t pos; | |
448abbba | 1180 | const char *cp, *np; |
2a409a1d | 1181 | const char *positive_name = NULL; |
d7a38c54 | 1182 | |
fa83cc83 SG |
1183 | if (opts->type == OPTION_SUBCOMMAND) |
1184 | continue; | |
d7a38c54 | 1185 | if (opts->type == OPTION_GROUP) { |
9c7304e3 | 1186 | fputc('\n', outfile); |
a6304fa4 | 1187 | need_newline = 0; |
d7a38c54 | 1188 | if (*opts->help) |
54e6dc7d | 1189 | fprintf(outfile, "%s\n", _(opts->help)); |
d7a38c54 PH |
1190 | continue; |
1191 | } | |
dd3bf0f4 PH |
1192 | if (!full && (opts->flags & PARSE_OPT_HIDDEN)) |
1193 | continue; | |
d7a38c54 | 1194 | |
a6304fa4 BC |
1195 | if (need_newline) { |
1196 | fputc('\n', outfile); | |
1197 | need_newline = 0; | |
1198 | } | |
1199 | ||
652a6b15 | 1200 | pos = usage_indent(outfile); |
cbb08c2e | 1201 | if (opts->short_name) { |
51a9949e | 1202 | if (opts->flags & PARSE_OPT_NODASH) |
9c7304e3 | 1203 | pos += fprintf(outfile, "%c", opts->short_name); |
51a9949e | 1204 | else |
9c7304e3 | 1205 | pos += fprintf(outfile, "-%c", opts->short_name); |
51a9949e | 1206 | } |
d7a38c54 | 1207 | if (opts->long_name && opts->short_name) |
9c7304e3 | 1208 | pos += fprintf(outfile, ", "); |
e8e5d294 RS |
1209 | if (opts->long_name) { |
1210 | const char *long_name = opts->long_name; | |
2a409a1d RS |
1211 | if ((opts->flags & PARSE_OPT_NONEG) || |
1212 | skip_prefix(long_name, "no-", &positive_name)) | |
e8e5d294 RS |
1213 | pos += fprintf(outfile, "--%s", long_name); |
1214 | else | |
1215 | pos += fprintf(outfile, "--[no-]%s", long_name); | |
1216 | } | |
1217 | ||
e0319ff5 | 1218 | if (opts->type == OPTION_NUMBER) |
c0821965 | 1219 | pos += utf8_fprintf(outfile, _("-NUM")); |
d7a38c54 | 1220 | |
b57c68a6 JN |
1221 | if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
1222 | !(opts->flags & PARSE_OPT_NOARG)) | |
9c7304e3 | 1223 | pos += usage_argh(opts, outfile); |
d7a38c54 | 1224 | |
5c387428 | 1225 | if (opts->type == OPTION_ALIAS) { |
652a6b15 | 1226 | usage_padding(outfile, pos); |
5c387428 NTND |
1227 | fprintf_ln(outfile, _("alias of --%s"), |
1228 | (const char *)opts->value); | |
1229 | continue; | |
1230 | } | |
448abbba | 1231 | |
cd52d9e9 | 1232 | for (cp = opts->help ? _(opts->help) : ""; *cp; cp = np) { |
448abbba | 1233 | np = strchrnul(cp, '\n'); |
448abbba JH |
1234 | if (*np) |
1235 | np++; | |
cd52d9e9 RS |
1236 | usage_padding(outfile, pos); |
1237 | fwrite(cp, 1, np - cp, outfile); | |
652a6b15 | 1238 | pos = 0; |
448abbba | 1239 | } |
cd52d9e9 | 1240 | fputc('\n', outfile); |
2a409a1d RS |
1241 | |
1242 | if (positive_name) { | |
1243 | if (find_option_by_long_name(all_opts, positive_name)) | |
1244 | continue; | |
1245 | pos = usage_indent(outfile); | |
1246 | pos += fprintf(outfile, "--%s", positive_name); | |
1247 | usage_padding(outfile, pos); | |
1248 | fprintf_ln(outfile, _("opposite of --no-%s"), | |
1249 | positive_name); | |
448abbba | 1250 | } |
d7a38c54 | 1251 | } |
9c7304e3 | 1252 | fputc('\n', outfile); |
f389c808 | 1253 | |
47e9cd28 TR |
1254 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
1255 | fputs("EOF\n", outfile); | |
1256 | ||
ee68b87a | 1257 | return PARSE_OPT_HELP; |
d7a38c54 | 1258 | } |
0ce865b1 | 1259 | |
c2e86add | 1260 | void NORETURN usage_with_options(const char * const *usagestr, |
ff43ec3e | 1261 | const struct option *opts) |
dd3bf0f4 | 1262 | { |
47e9cd28 | 1263 | usage_with_options_internal(NULL, usagestr, opts, 0, 1); |
ff43ec3e | 1264 | exit(129); |
dd3bf0f4 PH |
1265 | } |
1266 | ||
c2e86add | 1267 | void NORETURN usage_msg_opt(const char *msg, |
451bb210 CC |
1268 | const char * const *usagestr, |
1269 | const struct option *options) | |
1270 | { | |
e081a7c3 | 1271 | die_message("%s\n", msg); /* The extra \n is intentional */ |
451bb210 CC |
1272 | usage_with_options(usagestr, options); |
1273 | } | |
fa476be8 ÆAB |
1274 | |
1275 | void NORETURN usage_msg_optf(const char * const fmt, | |
1276 | const char * const *usagestr, | |
1277 | const struct option *options, ...) | |
1278 | { | |
1279 | struct strbuf msg = STRBUF_INIT; | |
1280 | va_list ap; | |
1281 | va_start(ap, options); | |
1282 | strbuf_vaddf(&msg, fmt, ap); | |
1283 | va_end(ap); | |
1284 | ||
1285 | usage_msg_opt(msg.buf, usagestr, options); | |
1286 | } | |
d21d5ddf | 1287 | |
a699367b JNA |
1288 | void die_for_incompatible_opt4(int opt1, const char *opt1_name, |
1289 | int opt2, const char *opt2_name, | |
1290 | int opt3, const char *opt3_name, | |
1291 | int opt4, const char *opt4_name) | |
1292 | { | |
1293 | int count = 0; | |
1294 | const char *options[4]; | |
1295 | ||
1296 | if (opt1) | |
1297 | options[count++] = opt1_name; | |
1298 | if (opt2) | |
1299 | options[count++] = opt2_name; | |
1300 | if (opt3) | |
1301 | options[count++] = opt3_name; | |
1302 | if (opt4) | |
1303 | options[count++] = opt4_name; | |
1304 | switch (count) { | |
1305 | case 4: | |
1306 | die(_("options '%s', '%s', '%s', and '%s' cannot be used together"), | |
1307 | opt1_name, opt2_name, opt3_name, opt4_name); | |
1308 | break; | |
1309 | case 3: | |
1310 | die(_("options '%s', '%s', and '%s' cannot be used together"), | |
1311 | options[0], options[1], options[2]); | |
1312 | break; | |
1313 | case 2: | |
1314 | die(_("options '%s' and '%s' cannot be used together"), | |
1315 | options[0], options[1]); | |
1316 | break; | |
1317 | default: | |
1318 | break; | |
1319 | } | |
1320 | } |