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1 | #include "cache.h" | |
2 | #include "config.h" | |
3 | #include "builtin.h" | |
4 | #include "exec-cmd.h" | |
5 | #include "run-command.h" | |
6 | #include "levenshtein.h" | |
7 | #include "help.h" | |
8 | #include "command-list.h" | |
9 | #include "string-list.h" | |
10 | #include "column.h" | |
11 | #include "version.h" | |
12 | #include "refs.h" | |
13 | #include "parse-options.h" | |
14 | ||
15 | struct category_description { | |
16 | uint32_t category; | |
17 | const char *desc; | |
18 | }; | |
19 | static uint32_t common_mask = | |
20 | CAT_init | CAT_worktree | CAT_info | | |
21 | CAT_history | CAT_remote; | |
22 | static struct category_description common_categories[] = { | |
23 | { CAT_init, N_("start a working area (see also: git help tutorial)") }, | |
24 | { CAT_worktree, N_("work on the current change (see also: git help everyday)") }, | |
25 | { CAT_info, N_("examine the history and state (see also: git help revisions)") }, | |
26 | { CAT_history, N_("grow, mark and tweak your common history") }, | |
27 | { CAT_remote, N_("collaborate (see also: git help workflows)") }, | |
28 | { 0, NULL } | |
29 | }; | |
30 | static struct category_description main_categories[] = { | |
31 | { CAT_mainporcelain, N_("Main Porcelain Commands") }, | |
32 | { CAT_ancillarymanipulators, N_("Ancillary Commands / Manipulators") }, | |
33 | { CAT_ancillaryinterrogators, N_("Ancillary Commands / Interrogators") }, | |
34 | { CAT_foreignscminterface, N_("Interacting with Others") }, | |
35 | { CAT_plumbingmanipulators, N_("Low-level Commands / Manipulators") }, | |
36 | { CAT_plumbinginterrogators, N_("Low-level Commands / Interrogators") }, | |
37 | { CAT_synchingrepositories, N_("Low-level Commands / Syncing Repositories") }, | |
38 | { CAT_purehelpers, N_("Low-level Commands / Internal Helpers") }, | |
39 | { 0, NULL } | |
40 | }; | |
41 | ||
42 | static const char *drop_prefix(const char *name, uint32_t category) | |
43 | { | |
44 | const char *new_name; | |
45 | ||
46 | if (skip_prefix(name, "git-", &new_name)) | |
47 | return new_name; | |
48 | if (category == CAT_guide && skip_prefix(name, "git", &new_name)) | |
49 | return new_name; | |
50 | return name; | |
51 | ||
52 | } | |
53 | ||
54 | static void extract_cmds(struct cmdname_help **p_cmds, uint32_t mask) | |
55 | { | |
56 | int i, nr = 0; | |
57 | struct cmdname_help *cmds; | |
58 | ||
59 | if (ARRAY_SIZE(command_list) == 0) | |
60 | BUG("empty command_list[] is a sign of broken generate-cmdlist.sh"); | |
61 | ||
62 | ALLOC_ARRAY(cmds, ARRAY_SIZE(command_list) + 1); | |
63 | ||
64 | for (i = 0; i < ARRAY_SIZE(command_list); i++) { | |
65 | const struct cmdname_help *cmd = command_list + i; | |
66 | ||
67 | if (!(cmd->category & mask)) | |
68 | continue; | |
69 | ||
70 | cmds[nr] = *cmd; | |
71 | cmds[nr].name = drop_prefix(cmd->name, cmd->category); | |
72 | ||
73 | nr++; | |
74 | } | |
75 | cmds[nr].name = NULL; | |
76 | *p_cmds = cmds; | |
77 | } | |
78 | ||
79 | static void print_command_list(const struct cmdname_help *cmds, | |
80 | uint32_t mask, int longest) | |
81 | { | |
82 | int i; | |
83 | ||
84 | for (i = 0; cmds[i].name; i++) { | |
85 | if (cmds[i].category & mask) { | |
86 | size_t len = strlen(cmds[i].name); | |
87 | printf(" %s ", cmds[i].name); | |
88 | if (longest > len) | |
89 | mput_char(' ', longest - len); | |
90 | puts(_(cmds[i].help)); | |
91 | } | |
92 | } | |
93 | } | |
94 | ||
95 | static int cmd_name_cmp(const void *elem1, const void *elem2) | |
96 | { | |
97 | const struct cmdname_help *e1 = elem1; | |
98 | const struct cmdname_help *e2 = elem2; | |
99 | ||
100 | return strcmp(e1->name, e2->name); | |
101 | } | |
102 | ||
103 | static void print_cmd_by_category(const struct category_description *catdesc, | |
104 | int *longest_p) | |
105 | { | |
106 | struct cmdname_help *cmds; | |
107 | int longest = 0; | |
108 | int i, nr = 0; | |
109 | uint32_t mask = 0; | |
110 | ||
111 | for (i = 0; catdesc[i].desc; i++) | |
112 | mask |= catdesc[i].category; | |
113 | ||
114 | extract_cmds(&cmds, mask); | |
115 | ||
116 | for (i = 0; cmds[i].name; i++, nr++) { | |
117 | if (longest < strlen(cmds[i].name)) | |
118 | longest = strlen(cmds[i].name); | |
119 | } | |
120 | QSORT(cmds, nr, cmd_name_cmp); | |
121 | ||
122 | for (i = 0; catdesc[i].desc; i++) { | |
123 | uint32_t mask = catdesc[i].category; | |
124 | const char *desc = catdesc[i].desc; | |
125 | ||
126 | printf("\n%s\n", _(desc)); | |
127 | print_command_list(cmds, mask, longest); | |
128 | } | |
129 | free(cmds); | |
130 | if (longest_p) | |
131 | *longest_p = longest; | |
132 | } | |
133 | ||
134 | void add_cmdname(struct cmdnames *cmds, const char *name, int len) | |
135 | { | |
136 | struct cmdname *ent; | |
137 | FLEX_ALLOC_MEM(ent, name, name, len); | |
138 | ent->len = len; | |
139 | ||
140 | ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc); | |
141 | cmds->names[cmds->cnt++] = ent; | |
142 | } | |
143 | ||
144 | static void clean_cmdnames(struct cmdnames *cmds) | |
145 | { | |
146 | int i; | |
147 | for (i = 0; i < cmds->cnt; ++i) | |
148 | free(cmds->names[i]); | |
149 | free(cmds->names); | |
150 | cmds->cnt = 0; | |
151 | cmds->alloc = 0; | |
152 | } | |
153 | ||
154 | static int cmdname_compare(const void *a_, const void *b_) | |
155 | { | |
156 | struct cmdname *a = *(struct cmdname **)a_; | |
157 | struct cmdname *b = *(struct cmdname **)b_; | |
158 | return strcmp(a->name, b->name); | |
159 | } | |
160 | ||
161 | static void uniq(struct cmdnames *cmds) | |
162 | { | |
163 | int i, j; | |
164 | ||
165 | if (!cmds->cnt) | |
166 | return; | |
167 | ||
168 | for (i = j = 1; i < cmds->cnt; i++) { | |
169 | if (!strcmp(cmds->names[i]->name, cmds->names[j-1]->name)) | |
170 | free(cmds->names[i]); | |
171 | else | |
172 | cmds->names[j++] = cmds->names[i]; | |
173 | } | |
174 | ||
175 | cmds->cnt = j; | |
176 | } | |
177 | ||
178 | void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) | |
179 | { | |
180 | int ci, cj, ei; | |
181 | int cmp; | |
182 | ||
183 | ci = cj = ei = 0; | |
184 | while (ci < cmds->cnt && ei < excludes->cnt) { | |
185 | cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name); | |
186 | if (cmp < 0) | |
187 | cmds->names[cj++] = cmds->names[ci++]; | |
188 | else if (cmp == 0) { | |
189 | ei++; | |
190 | free(cmds->names[ci++]); | |
191 | } else if (cmp > 0) | |
192 | ei++; | |
193 | } | |
194 | ||
195 | while (ci < cmds->cnt) | |
196 | cmds->names[cj++] = cmds->names[ci++]; | |
197 | ||
198 | cmds->cnt = cj; | |
199 | } | |
200 | ||
201 | static void pretty_print_cmdnames(struct cmdnames *cmds, unsigned int colopts) | |
202 | { | |
203 | struct string_list list = STRING_LIST_INIT_NODUP; | |
204 | struct column_options copts; | |
205 | int i; | |
206 | ||
207 | for (i = 0; i < cmds->cnt; i++) | |
208 | string_list_append(&list, cmds->names[i]->name); | |
209 | /* | |
210 | * always enable column display, we only consult column.* | |
211 | * about layout strategy and stuff | |
212 | */ | |
213 | colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED; | |
214 | memset(&copts, 0, sizeof(copts)); | |
215 | copts.indent = " "; | |
216 | copts.padding = 2; | |
217 | print_columns(&list, colopts, &copts); | |
218 | string_list_clear(&list, 0); | |
219 | } | |
220 | ||
221 | static void list_commands_in_dir(struct cmdnames *cmds, | |
222 | const char *path, | |
223 | const char *prefix) | |
224 | { | |
225 | DIR *dir = opendir(path); | |
226 | struct dirent *de; | |
227 | struct strbuf buf = STRBUF_INIT; | |
228 | int len; | |
229 | ||
230 | if (!dir) | |
231 | return; | |
232 | if (!prefix) | |
233 | prefix = "git-"; | |
234 | ||
235 | strbuf_addf(&buf, "%s/", path); | |
236 | len = buf.len; | |
237 | ||
238 | while ((de = readdir(dir)) != NULL) { | |
239 | const char *ent; | |
240 | size_t entlen; | |
241 | ||
242 | if (!skip_prefix(de->d_name, prefix, &ent)) | |
243 | continue; | |
244 | ||
245 | strbuf_setlen(&buf, len); | |
246 | strbuf_addstr(&buf, de->d_name); | |
247 | if (!is_executable(buf.buf)) | |
248 | continue; | |
249 | ||
250 | entlen = strlen(ent); | |
251 | strip_suffix(ent, ".exe", &entlen); | |
252 | ||
253 | add_cmdname(cmds, ent, entlen); | |
254 | } | |
255 | closedir(dir); | |
256 | strbuf_release(&buf); | |
257 | } | |
258 | ||
259 | void load_command_list(const char *prefix, | |
260 | struct cmdnames *main_cmds, | |
261 | struct cmdnames *other_cmds) | |
262 | { | |
263 | const char *env_path = getenv("PATH"); | |
264 | const char *exec_path = git_exec_path(); | |
265 | ||
266 | if (exec_path) { | |
267 | list_commands_in_dir(main_cmds, exec_path, prefix); | |
268 | QSORT(main_cmds->names, main_cmds->cnt, cmdname_compare); | |
269 | uniq(main_cmds); | |
270 | } | |
271 | ||
272 | if (env_path) { | |
273 | char *paths, *path, *colon; | |
274 | path = paths = xstrdup(env_path); | |
275 | while (1) { | |
276 | if ((colon = strchr(path, PATH_SEP))) | |
277 | *colon = 0; | |
278 | if (!exec_path || strcmp(path, exec_path)) | |
279 | list_commands_in_dir(other_cmds, path, prefix); | |
280 | ||
281 | if (!colon) | |
282 | break; | |
283 | path = colon + 1; | |
284 | } | |
285 | free(paths); | |
286 | ||
287 | QSORT(other_cmds->names, other_cmds->cnt, cmdname_compare); | |
288 | uniq(other_cmds); | |
289 | } | |
290 | exclude_cmds(other_cmds, main_cmds); | |
291 | } | |
292 | ||
293 | void list_commands(unsigned int colopts, | |
294 | struct cmdnames *main_cmds, struct cmdnames *other_cmds) | |
295 | { | |
296 | if (main_cmds->cnt) { | |
297 | const char *exec_path = git_exec_path(); | |
298 | printf_ln(_("available git commands in '%s'"), exec_path); | |
299 | putchar('\n'); | |
300 | pretty_print_cmdnames(main_cmds, colopts); | |
301 | putchar('\n'); | |
302 | } | |
303 | ||
304 | if (other_cmds->cnt) { | |
305 | printf_ln(_("git commands available from elsewhere on your $PATH")); | |
306 | putchar('\n'); | |
307 | pretty_print_cmdnames(other_cmds, colopts); | |
308 | putchar('\n'); | |
309 | } | |
310 | } | |
311 | ||
312 | void list_common_cmds_help(void) | |
313 | { | |
314 | puts(_("These are common Git commands used in various situations:")); | |
315 | print_cmd_by_category(common_categories, NULL); | |
316 | } | |
317 | ||
318 | void list_all_main_cmds(struct string_list *list) | |
319 | { | |
320 | struct cmdnames main_cmds, other_cmds; | |
321 | int i; | |
322 | ||
323 | memset(&main_cmds, 0, sizeof(main_cmds)); | |
324 | memset(&other_cmds, 0, sizeof(other_cmds)); | |
325 | load_command_list("git-", &main_cmds, &other_cmds); | |
326 | ||
327 | for (i = 0; i < main_cmds.cnt; i++) | |
328 | string_list_append(list, main_cmds.names[i]->name); | |
329 | ||
330 | clean_cmdnames(&main_cmds); | |
331 | clean_cmdnames(&other_cmds); | |
332 | } | |
333 | ||
334 | void list_all_other_cmds(struct string_list *list) | |
335 | { | |
336 | struct cmdnames main_cmds, other_cmds; | |
337 | int i; | |
338 | ||
339 | memset(&main_cmds, 0, sizeof(main_cmds)); | |
340 | memset(&other_cmds, 0, sizeof(other_cmds)); | |
341 | load_command_list("git-", &main_cmds, &other_cmds); | |
342 | ||
343 | for (i = 0; i < other_cmds.cnt; i++) | |
344 | string_list_append(list, other_cmds.names[i]->name); | |
345 | ||
346 | clean_cmdnames(&main_cmds); | |
347 | clean_cmdnames(&other_cmds); | |
348 | } | |
349 | ||
350 | void list_cmds_by_category(struct string_list *list, | |
351 | const char *cat) | |
352 | { | |
353 | int i, n = ARRAY_SIZE(command_list); | |
354 | uint32_t cat_id = 0; | |
355 | ||
356 | for (i = 0; category_names[i]; i++) { | |
357 | if (!strcmp(cat, category_names[i])) { | |
358 | cat_id = 1UL << i; | |
359 | break; | |
360 | } | |
361 | } | |
362 | if (!cat_id) | |
363 | die(_("unsupported command listing type '%s'"), cat); | |
364 | ||
365 | for (i = 0; i < n; i++) { | |
366 | struct cmdname_help *cmd = command_list + i; | |
367 | ||
368 | if (!(cmd->category & cat_id)) | |
369 | continue; | |
370 | string_list_append(list, drop_prefix(cmd->name, cmd->category)); | |
371 | } | |
372 | } | |
373 | ||
374 | void list_cmds_by_config(struct string_list *list) | |
375 | { | |
376 | const char *cmd_list; | |
377 | ||
378 | if (git_config_get_string_const("completion.commands", &cmd_list)) | |
379 | return; | |
380 | ||
381 | string_list_sort(list); | |
382 | string_list_remove_duplicates(list, 0); | |
383 | ||
384 | while (*cmd_list) { | |
385 | struct strbuf sb = STRBUF_INIT; | |
386 | const char *p = strchrnul(cmd_list, ' '); | |
387 | ||
388 | strbuf_add(&sb, cmd_list, p - cmd_list); | |
389 | if (sb.buf[0] == '-') | |
390 | string_list_remove(list, sb.buf + 1, 0); | |
391 | else | |
392 | string_list_insert(list, sb.buf); | |
393 | strbuf_release(&sb); | |
394 | while (*p == ' ') | |
395 | p++; | |
396 | cmd_list = p; | |
397 | } | |
398 | } | |
399 | ||
400 | void list_common_guides_help(void) | |
401 | { | |
402 | struct category_description catdesc[] = { | |
403 | { CAT_guide, N_("The common Git guides are:") }, | |
404 | { 0, NULL } | |
405 | }; | |
406 | print_cmd_by_category(catdesc, NULL); | |
407 | putchar('\n'); | |
408 | } | |
409 | ||
410 | static int get_alias(const char *var, const char *value, void *data) | |
411 | { | |
412 | struct string_list *list = data; | |
413 | ||
414 | if (skip_prefix(var, "alias.", &var)) | |
415 | string_list_append(list, var)->util = xstrdup(value); | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | void list_all_cmds_help(void) | |
421 | { | |
422 | struct string_list others = STRING_LIST_INIT_DUP; | |
423 | struct string_list alias_list = STRING_LIST_INIT_DUP; | |
424 | struct cmdname_help *aliases; | |
425 | int i, longest; | |
426 | ||
427 | printf_ln(_("See 'git help <command>' to read about a specific subcommand")); | |
428 | print_cmd_by_category(main_categories, &longest); | |
429 | ||
430 | list_all_other_cmds(&others); | |
431 | if (others.nr) | |
432 | printf("\n%s\n", _("External commands")); | |
433 | for (i = 0; i < others.nr; i++) | |
434 | printf(" %s\n", others.items[i].string); | |
435 | string_list_clear(&others, 0); | |
436 | ||
437 | git_config(get_alias, &alias_list); | |
438 | string_list_sort(&alias_list); | |
439 | ||
440 | for (i = 0; i < alias_list.nr; i++) { | |
441 | size_t len = strlen(alias_list.items[i].string); | |
442 | if (longest < len) | |
443 | longest = len; | |
444 | } | |
445 | ||
446 | if (alias_list.nr) { | |
447 | printf("\n%s\n", _("Command aliases")); | |
448 | ALLOC_ARRAY(aliases, alias_list.nr + 1); | |
449 | for (i = 0; i < alias_list.nr; i++) { | |
450 | aliases[i].name = alias_list.items[i].string; | |
451 | aliases[i].help = alias_list.items[i].util; | |
452 | aliases[i].category = 1; | |
453 | } | |
454 | aliases[alias_list.nr].name = NULL; | |
455 | print_command_list(aliases, 1, longest); | |
456 | free(aliases); | |
457 | } | |
458 | string_list_clear(&alias_list, 1); | |
459 | } | |
460 | ||
461 | int is_in_cmdlist(struct cmdnames *c, const char *s) | |
462 | { | |
463 | int i; | |
464 | for (i = 0; i < c->cnt; i++) | |
465 | if (!strcmp(s, c->names[i]->name)) | |
466 | return 1; | |
467 | return 0; | |
468 | } | |
469 | ||
470 | static int autocorrect; | |
471 | static struct cmdnames aliases; | |
472 | ||
473 | static int git_unknown_cmd_config(const char *var, const char *value, void *cb) | |
474 | { | |
475 | const char *p; | |
476 | ||
477 | if (!strcmp(var, "help.autocorrect")) | |
478 | autocorrect = git_config_int(var,value); | |
479 | /* Also use aliases for command lookup */ | |
480 | if (skip_prefix(var, "alias.", &p)) | |
481 | add_cmdname(&aliases, p, strlen(p)); | |
482 | ||
483 | return git_default_config(var, value, cb); | |
484 | } | |
485 | ||
486 | static int levenshtein_compare(const void *p1, const void *p2) | |
487 | { | |
488 | const struct cmdname *const *c1 = p1, *const *c2 = p2; | |
489 | const char *s1 = (*c1)->name, *s2 = (*c2)->name; | |
490 | int l1 = (*c1)->len; | |
491 | int l2 = (*c2)->len; | |
492 | return l1 != l2 ? l1 - l2 : strcmp(s1, s2); | |
493 | } | |
494 | ||
495 | static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old) | |
496 | { | |
497 | int i; | |
498 | ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc); | |
499 | ||
500 | for (i = 0; i < old->cnt; i++) | |
501 | cmds->names[cmds->cnt++] = old->names[i]; | |
502 | FREE_AND_NULL(old->names); | |
503 | old->cnt = 0; | |
504 | } | |
505 | ||
506 | /* An empirically derived magic number */ | |
507 | #define SIMILARITY_FLOOR 7 | |
508 | #define SIMILAR_ENOUGH(x) ((x) < SIMILARITY_FLOOR) | |
509 | ||
510 | static const char bad_interpreter_advice[] = | |
511 | N_("'%s' appears to be a git command, but we were not\n" | |
512 | "able to execute it. Maybe git-%s is broken?"); | |
513 | ||
514 | const char *help_unknown_cmd(const char *cmd) | |
515 | { | |
516 | int i, n, best_similarity = 0; | |
517 | struct cmdnames main_cmds, other_cmds; | |
518 | struct cmdname_help *common_cmds; | |
519 | ||
520 | memset(&main_cmds, 0, sizeof(main_cmds)); | |
521 | memset(&other_cmds, 0, sizeof(other_cmds)); | |
522 | memset(&aliases, 0, sizeof(aliases)); | |
523 | ||
524 | read_early_config(git_unknown_cmd_config, NULL); | |
525 | ||
526 | load_command_list("git-", &main_cmds, &other_cmds); | |
527 | ||
528 | add_cmd_list(&main_cmds, &aliases); | |
529 | add_cmd_list(&main_cmds, &other_cmds); | |
530 | QSORT(main_cmds.names, main_cmds.cnt, cmdname_compare); | |
531 | uniq(&main_cmds); | |
532 | ||
533 | extract_cmds(&common_cmds, common_mask); | |
534 | ||
535 | /* This abuses cmdname->len for levenshtein distance */ | |
536 | for (i = 0, n = 0; i < main_cmds.cnt; i++) { | |
537 | int cmp = 0; /* avoid compiler stupidity */ | |
538 | const char *candidate = main_cmds.names[i]->name; | |
539 | ||
540 | /* | |
541 | * An exact match means we have the command, but | |
542 | * for some reason exec'ing it gave us ENOENT; probably | |
543 | * it's a bad interpreter in the #! line. | |
544 | */ | |
545 | if (!strcmp(candidate, cmd)) | |
546 | die(_(bad_interpreter_advice), cmd, cmd); | |
547 | ||
548 | /* Does the candidate appear in common_cmds list? */ | |
549 | while (common_cmds[n].name && | |
550 | (cmp = strcmp(common_cmds[n].name, candidate)) < 0) | |
551 | n++; | |
552 | if (common_cmds[n].name && !cmp) { | |
553 | /* Yes, this is one of the common commands */ | |
554 | n++; /* use the entry from common_cmds[] */ | |
555 | if (starts_with(candidate, cmd)) { | |
556 | /* Give prefix match a very good score */ | |
557 | main_cmds.names[i]->len = 0; | |
558 | continue; | |
559 | } | |
560 | } | |
561 | ||
562 | main_cmds.names[i]->len = | |
563 | levenshtein(cmd, candidate, 0, 2, 1, 3) + 1; | |
564 | } | |
565 | FREE_AND_NULL(common_cmds); | |
566 | ||
567 | QSORT(main_cmds.names, main_cmds.cnt, levenshtein_compare); | |
568 | ||
569 | if (!main_cmds.cnt) | |
570 | die(_("Uh oh. Your system reports no Git commands at all.")); | |
571 | ||
572 | /* skip and count prefix matches */ | |
573 | for (n = 0; n < main_cmds.cnt && !main_cmds.names[n]->len; n++) | |
574 | ; /* still counting */ | |
575 | ||
576 | if (main_cmds.cnt <= n) { | |
577 | /* prefix matches with everything? that is too ambiguous */ | |
578 | best_similarity = SIMILARITY_FLOOR + 1; | |
579 | } else { | |
580 | /* count all the most similar ones */ | |
581 | for (best_similarity = main_cmds.names[n++]->len; | |
582 | (n < main_cmds.cnt && | |
583 | best_similarity == main_cmds.names[n]->len); | |
584 | n++) | |
585 | ; /* still counting */ | |
586 | } | |
587 | if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) { | |
588 | const char *assumed = main_cmds.names[0]->name; | |
589 | main_cmds.names[0] = NULL; | |
590 | clean_cmdnames(&main_cmds); | |
591 | fprintf_ln(stderr, | |
592 | _("WARNING: You called a Git command named '%s', " | |
593 | "which does not exist."), | |
594 | cmd); | |
595 | if (autocorrect < 0) | |
596 | fprintf_ln(stderr, | |
597 | _("Continuing under the assumption that " | |
598 | "you meant '%s'."), | |
599 | assumed); | |
600 | else { | |
601 | fprintf_ln(stderr, | |
602 | _("Continuing in %0.1f seconds, " | |
603 | "assuming that you meant '%s'."), | |
604 | (float)autocorrect/10.0, assumed); | |
605 | sleep_millisec(autocorrect * 100); | |
606 | } | |
607 | return assumed; | |
608 | } | |
609 | ||
610 | fprintf_ln(stderr, _("git: '%s' is not a git command. See 'git --help'."), cmd); | |
611 | ||
612 | if (SIMILAR_ENOUGH(best_similarity)) { | |
613 | fprintf_ln(stderr, | |
614 | Q_("\nThe most similar command is", | |
615 | "\nThe most similar commands are", | |
616 | n)); | |
617 | ||
618 | for (i = 0; i < n; i++) | |
619 | fprintf(stderr, "\t%s\n", main_cmds.names[i]->name); | |
620 | } | |
621 | ||
622 | exit(1); | |
623 | } | |
624 | ||
625 | void get_version_info(struct strbuf *buf, int show_build_options) | |
626 | { | |
627 | /* | |
628 | * The format of this string should be kept stable for compatibility | |
629 | * with external projects that rely on the output of "git version". | |
630 | * | |
631 | * Always show the version, even if other options are given. | |
632 | */ | |
633 | strbuf_addf(buf, "git version %s\n", git_version_string); | |
634 | ||
635 | if (show_build_options) { | |
636 | strbuf_addf(buf, "cpu: %s\n", GIT_HOST_CPU); | |
637 | if (git_built_from_commit_string[0]) | |
638 | strbuf_addf(buf, "built from commit: %s\n", | |
639 | git_built_from_commit_string); | |
640 | else | |
641 | strbuf_addstr(buf, "no commit associated with this build\n"); | |
642 | strbuf_addf(buf, "sizeof-long: %d\n", (int)sizeof(long)); | |
643 | strbuf_addf(buf, "sizeof-size_t: %d\n", (int)sizeof(size_t)); | |
644 | strbuf_addf(buf, "shell-path: %s\n", SHELL_PATH); | |
645 | /* NEEDSWORK: also save and output GIT-BUILD_OPTIONS? */ | |
646 | } | |
647 | } | |
648 | ||
649 | int cmd_version(int argc, const char **argv, const char *prefix) | |
650 | { | |
651 | struct strbuf buf = STRBUF_INIT; | |
652 | int build_options = 0; | |
653 | const char * const usage[] = { | |
654 | N_("git version [<options>]"), | |
655 | NULL | |
656 | }; | |
657 | struct option options[] = { | |
658 | OPT_BOOL(0, "build-options", &build_options, | |
659 | "also print build options"), | |
660 | OPT_END() | |
661 | }; | |
662 | ||
663 | argc = parse_options(argc, argv, prefix, options, usage, 0); | |
664 | ||
665 | get_version_info(&buf, build_options); | |
666 | printf("%s", buf.buf); | |
667 | ||
668 | strbuf_release(&buf); | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | struct similar_ref_cb { | |
674 | const char *base_ref; | |
675 | struct string_list *similar_refs; | |
676 | }; | |
677 | ||
678 | static int append_similar_ref(const char *refname, const struct object_id *oid, | |
679 | int flags, void *cb_data) | |
680 | { | |
681 | struct similar_ref_cb *cb = (struct similar_ref_cb *)(cb_data); | |
682 | char *branch = strrchr(refname, '/') + 1; | |
683 | ||
684 | /* A remote branch of the same name is deemed similar */ | |
685 | if (starts_with(refname, "refs/remotes/") && | |
686 | !strcmp(branch, cb->base_ref)) | |
687 | string_list_append_nodup(cb->similar_refs, | |
688 | shorten_unambiguous_ref(refname, 1)); | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static struct string_list guess_refs(const char *ref) | |
693 | { | |
694 | struct similar_ref_cb ref_cb; | |
695 | struct string_list similar_refs = STRING_LIST_INIT_DUP; | |
696 | ||
697 | ref_cb.base_ref = ref; | |
698 | ref_cb.similar_refs = &similar_refs; | |
699 | for_each_ref(append_similar_ref, &ref_cb); | |
700 | return similar_refs; | |
701 | } | |
702 | ||
703 | NORETURN void help_unknown_ref(const char *ref, const char *cmd, | |
704 | const char *error) | |
705 | { | |
706 | int i; | |
707 | struct string_list suggested_refs = guess_refs(ref); | |
708 | ||
709 | fprintf_ln(stderr, _("%s: %s - %s"), cmd, ref, error); | |
710 | ||
711 | if (suggested_refs.nr > 0) { | |
712 | fprintf_ln(stderr, | |
713 | Q_("\nDid you mean this?", | |
714 | "\nDid you mean one of these?", | |
715 | suggested_refs.nr)); | |
716 | for (i = 0; i < suggested_refs.nr; i++) | |
717 | fprintf(stderr, "\t%s\n", suggested_refs.items[i].string); | |
718 | } | |
719 | ||
720 | string_list_clear(&suggested_refs, 0); | |
721 | exit(1); | |
722 | } |