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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 PH |
8 | |
9 | #define OPT_SHORT 1 | |
10 | #define OPT_UNSET 2 | |
11 | ||
1f275b7c | 12 | int optbug(const struct option *opt, const char *reason) |
1e5ce570 | 13 | { |
af465af8 JH |
14 | if (opt->long_name) { |
15 | if (opt->short_name) | |
16 | return error("BUG: switch '%c' (--%s) %s", | |
17 | opt->short_name, opt->long_name, reason); | |
1e5ce570 | 18 | return error("BUG: option '%s' %s", opt->long_name, reason); |
af465af8 | 19 | } |
1e5ce570 JN |
20 | return error("BUG: switch '%c' %s", opt->short_name, reason); |
21 | } | |
22 | ||
1cc6985c PH |
23 | static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt, |
24 | int flags, const char **arg) | |
25 | { | |
26 | if (p->opt) { | |
27 | *arg = p->opt; | |
28 | p->opt = NULL; | |
29 | } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) { | |
30 | *arg = (const char *)opt->defval; | |
d5d745f9 | 31 | } else if (p->argc > 1) { |
1cc6985c PH |
32 | p->argc--; |
33 | *arg = *++p->argv; | |
34 | } else | |
35 | return opterror(opt, "requires a value", flags); | |
36 | return 0; | |
37 | } | |
38 | ||
df217ed6 SB |
39 | static void fix_filename(const char *prefix, const char **file) |
40 | { | |
41 | if (!file || !*file || !prefix || is_absolute_path(*file) | |
42 | || !strcmp("-", *file)) | |
43 | return; | |
e4da43b1 | 44 | *file = prefix_filename(prefix, *file); |
df217ed6 SB |
45 | } |
46 | ||
11588263 JH |
47 | static int opt_command_mode_error(const struct option *opt, |
48 | const struct option *all_opts, | |
49 | int flags) | |
50 | { | |
51 | const struct option *that; | |
52 | struct strbuf message = STRBUF_INIT; | |
53 | struct strbuf that_name = STRBUF_INIT; | |
54 | ||
55 | /* | |
56 | * Find the other option that was used to set the variable | |
57 | * already, and report that this is not compatible with it. | |
58 | */ | |
59 | for (that = all_opts; that->type != OPTION_END; that++) { | |
60 | if (that == opt || | |
61 | that->type != OPTION_CMDMODE || | |
62 | that->value != opt->value || | |
63 | that->defval != *(int *)opt->value) | |
64 | continue; | |
65 | ||
66 | if (that->long_name) | |
67 | strbuf_addf(&that_name, "--%s", that->long_name); | |
68 | else | |
69 | strbuf_addf(&that_name, "-%c", that->short_name); | |
70 | strbuf_addf(&message, ": incompatible with %s", that_name.buf); | |
71 | strbuf_release(&that_name); | |
72 | opterror(opt, message.buf, flags); | |
73 | strbuf_release(&message); | |
74 | return -1; | |
75 | } | |
76 | return opterror(opt, ": incompatible with something else", flags); | |
77 | } | |
78 | ||
7e7bbcb4 | 79 | static int get_value(struct parse_opt_ctx_t *p, |
11588263 JH |
80 | const struct option *opt, |
81 | const struct option *all_opts, | |
82 | int flags) | |
4a59fd13 | 83 | { |
ffe659f9 | 84 | const char *s, *arg; |
db7244bd | 85 | const int unset = flags & OPT_UNSET; |
df217ed6 | 86 | int err; |
4a59fd13 | 87 | |
db7244bd | 88 | if (unset && p->opt) |
4a59fd13 | 89 | return opterror(opt, "takes no value", flags); |
db7244bd PH |
90 | if (unset && (opt->flags & PARSE_OPT_NONEG)) |
91 | return opterror(opt, "isn't available", flags); | |
c1f4ec9e SB |
92 | if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG)) |
93 | return opterror(opt, "takes no value", flags); | |
db7244bd | 94 | |
db7244bd | 95 | switch (opt->type) { |
b0b3a8b6 JN |
96 | case OPTION_LOWLEVEL_CALLBACK: |
97 | return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset); | |
98 | ||
db7244bd PH |
99 | case OPTION_BIT: |
100 | if (unset) | |
101 | *(int *)opt->value &= ~opt->defval; | |
4a59fd13 | 102 | else |
db7244bd PH |
103 | *(int *)opt->value |= opt->defval; |
104 | return 0; | |
105 | ||
2f4b97f9 RS |
106 | case OPTION_NEGBIT: |
107 | if (unset) | |
108 | *(int *)opt->value |= opt->defval; | |
109 | else | |
110 | *(int *)opt->value &= ~opt->defval; | |
111 | return 0; | |
112 | ||
b04ba2bb | 113 | case OPTION_COUNTUP: |
e0070e8b PB |
114 | if (*(int *)opt->value < 0) |
115 | *(int *)opt->value = 0; | |
db7244bd PH |
116 | *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; |
117 | return 0; | |
118 | ||
119 | case OPTION_SET_INT: | |
120 | *(int *)opt->value = unset ? 0 : opt->defval; | |
121 | return 0; | |
122 | ||
11588263 JH |
123 | case OPTION_CMDMODE: |
124 | /* | |
125 | * Giving the same mode option twice, although is unnecessary, | |
126 | * is not a grave error, so let it pass. | |
127 | */ | |
128 | if (*(int *)opt->value && *(int *)opt->value != opt->defval) | |
129 | return opt_command_mode_error(opt, all_opts, flags); | |
130 | *(int *)opt->value = opt->defval; | |
131 | return 0; | |
132 | ||
4a59fd13 | 133 | case OPTION_STRING: |
1cc6985c | 134 | if (unset) |
db7244bd | 135 | *(const char **)opt->value = NULL; |
1cc6985c | 136 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
ffe659f9 | 137 | *(const char **)opt->value = (const char *)opt->defval; |
1cc6985c PH |
138 | else |
139 | return get_arg(p, opt, flags, (const char **)opt->value); | |
4a59fd13 PH |
140 | return 0; |
141 | ||
df217ed6 SB |
142 | case OPTION_FILENAME: |
143 | err = 0; | |
144 | if (unset) | |
145 | *(const char **)opt->value = NULL; | |
146 | else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) | |
147 | *(const char **)opt->value = (const char *)opt->defval; | |
148 | else | |
149 | err = get_arg(p, opt, flags, (const char **)opt->value); | |
150 | ||
151 | if (!err) | |
152 | fix_filename(p->prefix, (const char **)opt->value); | |
153 | return err; | |
154 | ||
ffe659f9 | 155 | case OPTION_CALLBACK: |
db7244bd | 156 | if (unset) |
07fe54db | 157 | return (*opt->callback)(opt, NULL, 1) ? (-1) : 0; |
db7244bd | 158 | if (opt->flags & PARSE_OPT_NOARG) |
07fe54db | 159 | return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; |
c43a2483 | 160 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) |
07fe54db | 161 | return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; |
1cc6985c PH |
162 | if (get_arg(p, opt, flags, &arg)) |
163 | return -1; | |
164 | return (*opt->callback)(opt, arg, 0) ? (-1) : 0; | |
ffe659f9 | 165 | |
4a59fd13 | 166 | case OPTION_INTEGER: |
db7244bd | 167 | if (unset) { |
4a59fd13 PH |
168 | *(int *)opt->value = 0; |
169 | return 0; | |
170 | } | |
c43a2483 | 171 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { |
ffe659f9 PH |
172 | *(int *)opt->value = opt->defval; |
173 | return 0; | |
174 | } | |
1cc6985c PH |
175 | if (get_arg(p, opt, flags, &arg)) |
176 | return -1; | |
177 | *(int *)opt->value = strtol(arg, (char **)&s, 10); | |
4a59fd13 PH |
178 | if (*s) |
179 | return opterror(opt, "expects a numerical value", flags); | |
180 | return 0; | |
181 | ||
2a514ed8 CB |
182 | case OPTION_MAGNITUDE: |
183 | if (unset) { | |
184 | *(unsigned long *)opt->value = 0; | |
185 | return 0; | |
186 | } | |
187 | if (opt->flags & PARSE_OPT_OPTARG && !p->opt) { | |
188 | *(unsigned long *)opt->value = opt->defval; | |
189 | return 0; | |
190 | } | |
191 | if (get_arg(p, opt, flags, &arg)) | |
192 | return -1; | |
193 | if (!git_parse_ulong(arg, opt->value)) | |
194 | return opterror(opt, | |
195 | "expects a non-negative integer value with an optional k/m/g suffix", | |
196 | flags); | |
197 | return 0; | |
198 | ||
4a59fd13 PH |
199 | default: |
200 | die("should not happen, someone must be hit on the forehead"); | |
201 | } | |
202 | } | |
203 | ||
7e7bbcb4 | 204 | static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options) |
4a59fd13 | 205 | { |
11588263 | 206 | const struct option *all_opts = options; |
e0319ff5 RS |
207 | const struct option *numopt = NULL; |
208 | ||
4a59fd13 PH |
209 | for (; options->type != OPTION_END; options++) { |
210 | if (options->short_name == *p->opt) { | |
211 | p->opt = p->opt[1] ? p->opt + 1 : NULL; | |
11588263 | 212 | return get_value(p, options, all_opts, OPT_SHORT); |
4a59fd13 | 213 | } |
e0319ff5 RS |
214 | |
215 | /* | |
216 | * Handle the numerical option later, explicit one-digit | |
217 | * options take precedence over it. | |
218 | */ | |
219 | if (options->type == OPTION_NUMBER) | |
220 | numopt = options; | |
221 | } | |
222 | if (numopt && isdigit(*p->opt)) { | |
223 | size_t len = 1; | |
224 | char *arg; | |
225 | int rc; | |
226 | ||
227 | while (isdigit(p->opt[len])) | |
228 | len++; | |
229 | arg = xmemdupz(p->opt, len); | |
230 | p->opt = p->opt[len] ? p->opt + len : NULL; | |
231 | rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; | |
232 | free(arg); | |
233 | return rc; | |
4a59fd13 | 234 | } |
07fe54db | 235 | return -2; |
4a59fd13 PH |
236 | } |
237 | ||
7e7bbcb4 | 238 | static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg, |
4a59fd13 PH |
239 | const struct option *options) |
240 | { | |
11588263 | 241 | const struct option *all_opts = options; |
2c5495f7 | 242 | const char *arg_end = strchrnul(arg, '='); |
243e0614 JS |
243 | const struct option *abbrev_option = NULL, *ambiguous_option = NULL; |
244 | int abbrev_flags = 0, ambiguous_flags = 0; | |
7f275b91 | 245 | |
4a59fd13 | 246 | for (; options->type != OPTION_END; options++) { |
0f1930c5 RS |
247 | const char *rest, *long_name = options->long_name; |
248 | int flags = 0, opt_flags = 0; | |
4a59fd13 | 249 | |
0f1930c5 | 250 | if (!long_name) |
4a59fd13 PH |
251 | continue; |
252 | ||
0f1930c5 | 253 | again: |
cf4fff57 JK |
254 | if (!skip_prefix(arg, long_name, &rest)) |
255 | rest = NULL; | |
580d5bff PH |
256 | if (options->type == OPTION_ARGUMENT) { |
257 | if (!rest) | |
258 | continue; | |
259 | if (*rest == '=') | |
260 | return opterror(options, "takes no value", flags); | |
261 | if (*rest) | |
262 | continue; | |
263 | p->out[p->cpidx++] = arg - 2; | |
264 | return 0; | |
265 | } | |
4a59fd13 | 266 | if (!rest) { |
7f275b91 | 267 | /* abbreviated? */ |
0f1930c5 | 268 | if (!strncmp(long_name, arg, arg_end - arg)) { |
7f275b91 | 269 | is_abbreviated: |
243e0614 JS |
270 | if (abbrev_option) { |
271 | /* | |
272 | * If this is abbreviated, it is | |
273 | * ambiguous. So when there is no | |
274 | * exact match later, we need to | |
275 | * error out. | |
276 | */ | |
277 | ambiguous_option = abbrev_option; | |
278 | ambiguous_flags = abbrev_flags; | |
279 | } | |
7f275b91 JS |
280 | if (!(flags & OPT_UNSET) && *arg_end) |
281 | p->opt = arg_end + 1; | |
282 | abbrev_option = options; | |
0f1930c5 | 283 | abbrev_flags = flags ^ opt_flags; |
7f275b91 JS |
284 | continue; |
285 | } | |
6bbfd1fa AS |
286 | /* negation allowed? */ |
287 | if (options->flags & PARSE_OPT_NONEG) | |
288 | continue; | |
7f275b91 | 289 | /* negated and abbreviated very much? */ |
59556548 | 290 | if (starts_with("no-", arg)) { |
7f275b91 JS |
291 | flags |= OPT_UNSET; |
292 | goto is_abbreviated; | |
293 | } | |
294 | /* negated? */ | |
59556548 CC |
295 | if (!starts_with(arg, "no-")) { |
296 | if (starts_with(long_name, "no-")) { | |
0f1930c5 RS |
297 | long_name += 3; |
298 | opt_flags |= OPT_UNSET; | |
299 | goto again; | |
300 | } | |
4a59fd13 | 301 | continue; |
0f1930c5 | 302 | } |
4a59fd13 | 303 | flags |= OPT_UNSET; |
cf4fff57 JK |
304 | if (!skip_prefix(arg + 3, long_name, &rest)) { |
305 | /* abbreviated and negated? */ | |
306 | if (starts_with(long_name, arg + 3)) | |
307 | goto is_abbreviated; | |
308 | else | |
309 | continue; | |
310 | } | |
4a59fd13 PH |
311 | } |
312 | if (*rest) { | |
313 | if (*rest != '=') | |
314 | continue; | |
315 | p->opt = rest + 1; | |
316 | } | |
11588263 | 317 | return get_value(p, options, all_opts, flags ^ opt_flags); |
4a59fd13 | 318 | } |
243e0614 | 319 | |
3bb0923f PSU |
320 | if (ambiguous_option) { |
321 | error("Ambiguous option: %s " | |
243e0614 JS |
322 | "(could be --%s%s or --%s%s)", |
323 | arg, | |
324 | (ambiguous_flags & OPT_UNSET) ? "no-" : "", | |
325 | ambiguous_option->long_name, | |
326 | (abbrev_flags & OPT_UNSET) ? "no-" : "", | |
327 | abbrev_option->long_name); | |
3bb0923f PSU |
328 | return -3; |
329 | } | |
7f275b91 | 330 | if (abbrev_option) |
11588263 | 331 | return get_value(p, abbrev_option, all_opts, abbrev_flags); |
07fe54db | 332 | return -2; |
4a59fd13 PH |
333 | } |
334 | ||
51a9949e RS |
335 | static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, |
336 | const struct option *options) | |
337 | { | |
11588263 JH |
338 | const struct option *all_opts = options; |
339 | ||
51a9949e RS |
340 | for (; options->type != OPTION_END; options++) { |
341 | if (!(options->flags & PARSE_OPT_NODASH)) | |
342 | continue; | |
51a9949e | 343 | if (options->short_name == arg[0] && arg[1] == '\0') |
11588263 | 344 | return get_value(p, options, all_opts, OPT_SHORT); |
51a9949e RS |
345 | } |
346 | return -2; | |
347 | } | |
348 | ||
1121a878 | 349 | static void check_typos(const char *arg, const struct option *options) |
3a9f0f41 PH |
350 | { |
351 | if (strlen(arg) < 3) | |
352 | return; | |
353 | ||
59556548 | 354 | if (starts_with(arg, "no-")) { |
3a9f0f41 PH |
355 | error ("did you mean `--%s` (with two dashes ?)", arg); |
356 | exit(129); | |
357 | } | |
358 | ||
359 | for (; options->type != OPTION_END; options++) { | |
360 | if (!options->long_name) | |
361 | continue; | |
59556548 | 362 | if (starts_with(options->long_name, arg)) { |
3a9f0f41 PH |
363 | error ("did you mean `--%s` (with two dashes ?)", arg); |
364 | exit(129); | |
365 | } | |
366 | } | |
367 | } | |
368 | ||
cb9d398c PH |
369 | static void parse_options_check(const struct option *opts) |
370 | { | |
371 | int err = 0; | |
af465af8 | 372 | char short_opts[128]; |
cb9d398c | 373 | |
af465af8 | 374 | memset(short_opts, '\0', sizeof(short_opts)); |
cb9d398c PH |
375 | for (; opts->type != OPTION_END; opts++) { |
376 | if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && | |
1e5ce570 JN |
377 | (opts->flags & PARSE_OPT_OPTARG)) |
378 | err |= optbug(opts, "uses incompatible flags " | |
379 | "LASTARG_DEFAULT and OPTARG"); | |
af465af8 JH |
380 | if (opts->short_name) { |
381 | if (0x7F <= opts->short_name) | |
382 | err |= optbug(opts, "invalid short name"); | |
383 | else if (short_opts[opts->short_name]++) | |
384 | err |= optbug(opts, "short name already used"); | |
385 | } | |
a02dd4ff JN |
386 | if (opts->flags & PARSE_OPT_NODASH && |
387 | ((opts->flags & PARSE_OPT_OPTARG) || | |
388 | !(opts->flags & PARSE_OPT_NOARG) || | |
389 | !(opts->flags & PARSE_OPT_NONEG) || | |
390 | opts->long_name)) | |
391 | err |= optbug(opts, "uses feature " | |
392 | "not supported for dashless options"); | |
5c400ed2 | 393 | switch (opts->type) { |
b04ba2bb | 394 | case OPTION_COUNTUP: |
5c400ed2 JN |
395 | case OPTION_BIT: |
396 | case OPTION_NEGBIT: | |
397 | case OPTION_SET_INT: | |
5c400ed2 JN |
398 | case OPTION_NUMBER: |
399 | if ((opts->flags & PARSE_OPT_OPTARG) || | |
400 | !(opts->flags & PARSE_OPT_NOARG)) | |
401 | err |= optbug(opts, "should not accept an argument"); | |
402 | default: | |
403 | ; /* ok. (usually accepts an argument) */ | |
404 | } | |
b6c2a0d4 JH |
405 | if (opts->argh && |
406 | strcspn(opts->argh, " _") != strlen(opts->argh)) | |
407 | err |= optbug(opts, "multi-word argh should use dash to separate words"); | |
cb9d398c | 408 | } |
cb9d398c | 409 | if (err) |
1e5ce570 | 410 | exit(128); |
cb9d398c PH |
411 | } |
412 | ||
7e7bbcb4 | 413 | void parse_options_start(struct parse_opt_ctx_t *ctx, |
37782920 | 414 | int argc, const char **argv, const char *prefix, |
9ca1169f | 415 | const struct option *options, int flags) |
7e7bbcb4 PH |
416 | { |
417 | memset(ctx, 0, sizeof(*ctx)); | |
5ad0d3d5 | 418 | ctx->argc = ctx->total = argc - 1; |
7e7bbcb4 PH |
419 | ctx->argv = argv + 1; |
420 | ctx->out = argv; | |
37782920 | 421 | ctx->prefix = prefix; |
a32a4eaa | 422 | ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); |
7e7bbcb4 | 423 | ctx->flags = flags; |
0d260f9a RS |
424 | if ((flags & PARSE_OPT_KEEP_UNKNOWN) && |
425 | (flags & PARSE_OPT_STOP_AT_NON_OPTION)) | |
426 | die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); | |
9ca1169f | 427 | parse_options_check(options); |
7e7bbcb4 PH |
428 | } |
429 | ||
b221b5ab NTND |
430 | static void show_negated_gitcomp(const struct option *opts, int nr_noopts) |
431 | { | |
432 | int printed_dashdash = 0; | |
433 | ||
434 | for (; opts->type != OPTION_END; opts++) { | |
435 | int has_unset_form = 0; | |
436 | const char *name; | |
437 | ||
438 | if (!opts->long_name) | |
439 | continue; | |
440 | if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) | |
441 | continue; | |
442 | if (opts->flags & PARSE_OPT_NONEG) | |
443 | continue; | |
444 | ||
445 | switch (opts->type) { | |
446 | case OPTION_STRING: | |
447 | case OPTION_FILENAME: | |
448 | case OPTION_INTEGER: | |
449 | case OPTION_MAGNITUDE: | |
450 | case OPTION_CALLBACK: | |
451 | case OPTION_BIT: | |
452 | case OPTION_NEGBIT: | |
453 | case OPTION_COUNTUP: | |
454 | case OPTION_SET_INT: | |
455 | has_unset_form = 1; | |
456 | break; | |
457 | default: | |
458 | break; | |
459 | } | |
460 | if (!has_unset_form) | |
461 | continue; | |
462 | ||
463 | if (skip_prefix(opts->long_name, "no-", &name)) { | |
464 | if (nr_noopts < 0) | |
465 | printf(" --%s", name); | |
466 | } else if (nr_noopts >= 0) { | |
467 | if (nr_noopts && !printed_dashdash) { | |
468 | printf(" --"); | |
469 | printed_dashdash = 1; | |
470 | } | |
471 | printf(" --no-%s", opts->long_name); | |
472 | nr_noopts++; | |
473 | } | |
474 | } | |
475 | } | |
476 | ||
b9d7f4b4 NTND |
477 | static int show_gitcomp(struct parse_opt_ctx_t *ctx, |
478 | const struct option *opts) | |
479 | { | |
b221b5ab NTND |
480 | const struct option *original_opts = opts; |
481 | int nr_noopts = 0; | |
482 | ||
b9d7f4b4 NTND |
483 | for (; opts->type != OPTION_END; opts++) { |
484 | const char *suffix = ""; | |
485 | ||
486 | if (!opts->long_name) | |
487 | continue; | |
488 | if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) | |
489 | continue; | |
490 | ||
491 | switch (opts->type) { | |
492 | case OPTION_GROUP: | |
493 | continue; | |
494 | case OPTION_STRING: | |
495 | case OPTION_FILENAME: | |
496 | case OPTION_INTEGER: | |
497 | case OPTION_MAGNITUDE: | |
498 | case OPTION_CALLBACK: | |
499 | if (opts->flags & PARSE_OPT_NOARG) | |
500 | break; | |
501 | if (opts->flags & PARSE_OPT_OPTARG) | |
502 | break; | |
503 | if (opts->flags & PARSE_OPT_LASTARG_DEFAULT) | |
504 | break; | |
505 | suffix = "="; | |
506 | break; | |
507 | default: | |
508 | break; | |
509 | } | |
ebc4a04e NTND |
510 | if (opts->flags & PARSE_OPT_COMP_ARG) |
511 | suffix = "="; | |
b221b5ab NTND |
512 | if (starts_with(opts->long_name, "no-")) |
513 | nr_noopts++; | |
b9d7f4b4 NTND |
514 | printf(" --%s%s", opts->long_name, suffix); |
515 | } | |
b221b5ab NTND |
516 | show_negated_gitcomp(original_opts, -1); |
517 | show_negated_gitcomp(original_opts, nr_noopts); | |
b9d7f4b4 NTND |
518 | fputc('\n', stdout); |
519 | exit(0); | |
520 | } | |
521 | ||
47e9cd28 TR |
522 | static int usage_with_options_internal(struct parse_opt_ctx_t *, |
523 | const char * const *, | |
9c7304e3 | 524 | const struct option *, int, int); |
dd3bf0f4 | 525 | |
ff43ec3e PH |
526 | int parse_options_step(struct parse_opt_ctx_t *ctx, |
527 | const struct option *options, | |
528 | const char * const usagestr[]) | |
4a59fd13 | 529 | { |
b92891f9 RS |
530 | int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); |
531 | ||
26141b5b PH |
532 | /* we must reset ->opt, unknown short option leave it dangling */ |
533 | ctx->opt = NULL; | |
534 | ||
ff43ec3e PH |
535 | for (; ctx->argc; ctx->argc--, ctx->argv++) { |
536 | const char *arg = ctx->argv[0]; | |
4a59fd13 PH |
537 | |
538 | if (*arg != '-' || !arg[1]) { | |
51a9949e RS |
539 | if (parse_nodash_opt(ctx, arg, options) == 0) |
540 | continue; | |
ff43ec3e | 541 | if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) |
979240fe | 542 | return PARSE_OPT_NON_OPTION; |
ff43ec3e | 543 | ctx->out[ctx->cpidx++] = ctx->argv[0]; |
4a59fd13 PH |
544 | continue; |
545 | } | |
546 | ||
5ad0d3d5 RS |
547 | /* lone -h asks for help */ |
548 | if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h")) | |
549 | goto show_usage; | |
550 | ||
b9d7f4b4 NTND |
551 | /* lone --git-completion-helper is asked by git-completion.bash */ |
552 | if (ctx->total == 1 && !strcmp(arg + 1, "-git-completion-helper")) | |
553 | return show_gitcomp(ctx, options); | |
554 | ||
4a59fd13 | 555 | if (arg[1] != '-') { |
ff43ec3e | 556 | ctx->opt = arg + 1; |
07fe54db PH |
557 | switch (parse_short_opt(ctx, options)) { |
558 | case -1: | |
3bb0923f | 559 | return PARSE_OPT_ERROR; |
07fe54db | 560 | case -2: |
38916c5b RS |
561 | if (ctx->opt) |
562 | check_typos(arg + 1, options); | |
5ad0d3d5 RS |
563 | if (internal_help && *ctx->opt == 'h') |
564 | goto show_usage; | |
b5ce3a54 | 565 | goto unknown; |
07fe54db | 566 | } |
ff43ec3e | 567 | if (ctx->opt) |
3a9f0f41 | 568 | check_typos(arg + 1, options); |
ff43ec3e | 569 | while (ctx->opt) { |
07fe54db PH |
570 | switch (parse_short_opt(ctx, options)) { |
571 | case -1: | |
3bb0923f | 572 | return PARSE_OPT_ERROR; |
07fe54db | 573 | case -2: |
5ad0d3d5 RS |
574 | if (internal_help && *ctx->opt == 'h') |
575 | goto show_usage; | |
576 | ||
26141b5b PH |
577 | /* fake a short option thing to hide the fact that we may have |
578 | * started to parse aggregated stuff | |
579 | * | |
580 | * This is leaky, too bad. | |
581 | */ | |
582 | ctx->argv[0] = xstrdup(ctx->opt - 1); | |
583 | *(char *)ctx->argv[0] = '-'; | |
b5ce3a54 | 584 | goto unknown; |
07fe54db | 585 | } |
3a9f0f41 | 586 | } |
4a59fd13 PH |
587 | continue; |
588 | } | |
589 | ||
590 | if (!arg[2]) { /* "--" */ | |
ff43ec3e PH |
591 | if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { |
592 | ctx->argc--; | |
593 | ctx->argv++; | |
4a59fd13 PH |
594 | } |
595 | break; | |
596 | } | |
597 | ||
b92891f9 | 598 | if (internal_help && !strcmp(arg + 2, "help-all")) |
47e9cd28 | 599 | return usage_with_options_internal(ctx, usagestr, options, 1, 0); |
b92891f9 | 600 | if (internal_help && !strcmp(arg + 2, "help")) |
ac20ff6d | 601 | goto show_usage; |
07fe54db PH |
602 | switch (parse_long_opt(ctx, arg + 2, options)) { |
603 | case -1: | |
3bb0923f | 604 | return PARSE_OPT_ERROR; |
07fe54db | 605 | case -2: |
b5ce3a54 | 606 | goto unknown; |
3bb0923f PSU |
607 | case -3: |
608 | goto show_usage; | |
07fe54db | 609 | } |
b5ce3a54 RS |
610 | continue; |
611 | unknown: | |
612 | if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) | |
613 | return PARSE_OPT_UNKNOWN; | |
614 | ctx->out[ctx->cpidx++] = ctx->argv[0]; | |
615 | ctx->opt = NULL; | |
ff43ec3e PH |
616 | } |
617 | return PARSE_OPT_DONE; | |
ac20ff6d | 618 | |
ac20ff6d | 619 | show_usage: |
3bb0923f | 620 | return usage_with_options_internal(ctx, usagestr, options, 0, 0); |
ff43ec3e PH |
621 | } |
622 | ||
623 | int parse_options_end(struct parse_opt_ctx_t *ctx) | |
624 | { | |
f919ffeb | 625 | MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc); |
ff43ec3e PH |
626 | ctx->out[ctx->cpidx + ctx->argc] = NULL; |
627 | return ctx->cpidx + ctx->argc; | |
628 | } | |
629 | ||
37782920 SB |
630 | int parse_options(int argc, const char **argv, const char *prefix, |
631 | const struct option *options, const char * const usagestr[], | |
632 | int flags) | |
ff43ec3e PH |
633 | { |
634 | struct parse_opt_ctx_t ctx; | |
635 | ||
9ca1169f | 636 | parse_options_start(&ctx, argc, argv, prefix, options, flags); |
ff43ec3e PH |
637 | switch (parse_options_step(&ctx, options, usagestr)) { |
638 | case PARSE_OPT_HELP: | |
3bb0923f | 639 | case PARSE_OPT_ERROR: |
ff43ec3e | 640 | exit(129); |
979240fe | 641 | case PARSE_OPT_NON_OPTION: |
ff43ec3e PH |
642 | case PARSE_OPT_DONE: |
643 | break; | |
644 | default: /* PARSE_OPT_UNKNOWN */ | |
07fe54db PH |
645 | if (ctx.argv[0][1] == '-') { |
646 | error("unknown option `%s'", ctx.argv[0] + 2); | |
b141a478 | 647 | } else if (isascii(*ctx.opt)) { |
07fe54db | 648 | error("unknown switch `%c'", *ctx.opt); |
b141a478 EFL |
649 | } else { |
650 | error("unknown non-ascii option in string: `%s'", | |
651 | ctx.argv[0]); | |
07fe54db PH |
652 | } |
653 | usage_with_options(usagestr, options); | |
4a59fd13 PH |
654 | } |
655 | ||
76759c7d | 656 | precompose_argv(argc, argv); |
7e7bbcb4 | 657 | return parse_options_end(&ctx); |
4a59fd13 | 658 | } |
d7a38c54 | 659 | |
9c7304e3 | 660 | static int usage_argh(const struct option *opts, FILE *outfile) |
29f25d49 SB |
661 | { |
662 | const char *s; | |
5f0df44c RS |
663 | int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
664 | !opts->argh || !!strpbrk(opts->argh, "()<>[]|"); | |
29f25d49 SB |
665 | if (opts->flags & PARSE_OPT_OPTARG) |
666 | if (opts->long_name) | |
667 | s = literal ? "[=%s]" : "[=<%s>]"; | |
668 | else | |
669 | s = literal ? "[%s]" : "[<%s>]"; | |
670 | else | |
671 | s = literal ? " %s" : " <%s>"; | |
c0821965 | 672 | return utf8_fprintf(outfile, s, opts->argh ? _(opts->argh) : _("...")); |
29f25d49 SB |
673 | } |
674 | ||
d7a38c54 PH |
675 | #define USAGE_OPTS_WIDTH 24 |
676 | #define USAGE_GAP 2 | |
677 | ||
47e9cd28 TR |
678 | static int usage_with_options_internal(struct parse_opt_ctx_t *ctx, |
679 | const char * const *usagestr, | |
680 | const struct option *opts, int full, int err) | |
d7a38c54 | 681 | { |
9c7304e3 | 682 | FILE *outfile = err ? stderr : stdout; |
a6304fa4 | 683 | int need_newline; |
9c7304e3 | 684 | |
49b61802 RS |
685 | if (!usagestr) |
686 | return PARSE_OPT_HELP; | |
687 | ||
47e9cd28 TR |
688 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
689 | fprintf(outfile, "cat <<\\EOF\n"); | |
690 | ||
54e6dc7d | 691 | fprintf_ln(outfile, _("usage: %s"), _(*usagestr++)); |
f389c808 | 692 | while (*usagestr && **usagestr) |
66f5f6dc ÆAB |
693 | /* |
694 | * TRANSLATORS: the colon here should align with the | |
695 | * one in "usage: %s" translation. | |
696 | */ | |
54e6dc7d | 697 | fprintf_ln(outfile, _(" or: %s"), _(*usagestr++)); |
44d86e91 | 698 | while (*usagestr) { |
54e6dc7d NTND |
699 | if (**usagestr) |
700 | fprintf_ln(outfile, _(" %s"), _(*usagestr)); | |
701 | else | |
1a9bf1e1 | 702 | fputc('\n', outfile); |
44d86e91 JK |
703 | usagestr++; |
704 | } | |
d7a38c54 | 705 | |
a6304fa4 | 706 | need_newline = 1; |
d7a38c54 PH |
707 | |
708 | for (; opts->type != OPTION_END; opts++) { | |
709 | size_t pos; | |
710 | int pad; | |
711 | ||
712 | if (opts->type == OPTION_GROUP) { | |
9c7304e3 | 713 | fputc('\n', outfile); |
a6304fa4 | 714 | need_newline = 0; |
d7a38c54 | 715 | if (*opts->help) |
54e6dc7d | 716 | fprintf(outfile, "%s\n", _(opts->help)); |
d7a38c54 PH |
717 | continue; |
718 | } | |
dd3bf0f4 PH |
719 | if (!full && (opts->flags & PARSE_OPT_HIDDEN)) |
720 | continue; | |
d7a38c54 | 721 | |
a6304fa4 BC |
722 | if (need_newline) { |
723 | fputc('\n', outfile); | |
724 | need_newline = 0; | |
725 | } | |
726 | ||
9c7304e3 | 727 | pos = fprintf(outfile, " "); |
cbb08c2e | 728 | if (opts->short_name) { |
51a9949e | 729 | if (opts->flags & PARSE_OPT_NODASH) |
9c7304e3 | 730 | pos += fprintf(outfile, "%c", opts->short_name); |
51a9949e | 731 | else |
9c7304e3 | 732 | pos += fprintf(outfile, "-%c", opts->short_name); |
51a9949e | 733 | } |
d7a38c54 | 734 | if (opts->long_name && opts->short_name) |
9c7304e3 | 735 | pos += fprintf(outfile, ", "); |
d7a38c54 | 736 | if (opts->long_name) |
cbb08c2e | 737 | pos += fprintf(outfile, "--%s", opts->long_name); |
e0319ff5 | 738 | if (opts->type == OPTION_NUMBER) |
c0821965 | 739 | pos += utf8_fprintf(outfile, _("-NUM")); |
d7a38c54 | 740 | |
b57c68a6 JN |
741 | if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) || |
742 | !(opts->flags & PARSE_OPT_NOARG)) | |
9c7304e3 | 743 | pos += usage_argh(opts, outfile); |
d7a38c54 | 744 | |
f389c808 AR |
745 | if (pos <= USAGE_OPTS_WIDTH) |
746 | pad = USAGE_OPTS_WIDTH - pos; | |
d7a38c54 | 747 | else { |
9c7304e3 | 748 | fputc('\n', outfile); |
d7a38c54 PH |
749 | pad = USAGE_OPTS_WIDTH; |
750 | } | |
54e6dc7d | 751 | fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help)); |
d7a38c54 | 752 | } |
9c7304e3 | 753 | fputc('\n', outfile); |
f389c808 | 754 | |
47e9cd28 TR |
755 | if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL) |
756 | fputs("EOF\n", outfile); | |
757 | ||
ee68b87a | 758 | return PARSE_OPT_HELP; |
d7a38c54 | 759 | } |
0ce865b1 | 760 | |
c2e86add | 761 | void NORETURN usage_with_options(const char * const *usagestr, |
ff43ec3e | 762 | const struct option *opts) |
dd3bf0f4 | 763 | { |
47e9cd28 | 764 | usage_with_options_internal(NULL, usagestr, opts, 0, 1); |
ff43ec3e | 765 | exit(129); |
dd3bf0f4 PH |
766 | } |
767 | ||
c2e86add | 768 | void NORETURN usage_msg_opt(const char *msg, |
451bb210 CC |
769 | const char * const *usagestr, |
770 | const struct option *options) | |
771 | { | |
87433261 | 772 | fprintf(stderr, "fatal: %s\n\n", msg); |
451bb210 CC |
773 | usage_with_options(usagestr, options); |
774 | } | |
775 | ||
a469a101 JK |
776 | #undef opterror |
777 | int opterror(const struct option *opt, const char *reason, int flags) | |
778 | { | |
779 | if (flags & OPT_SHORT) | |
780 | return error("switch `%c' %s", opt->short_name, reason); | |
781 | if (flags & OPT_UNSET) | |
782 | return error("option `no-%s' %s", opt->long_name, reason); | |
783 | return error("option `%s' %s", opt->long_name, reason); | |
784 | } |