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Commit | Line | Data |
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70827b15 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
70827b15 | 3 | #include "builtin.h" |
d807c4a0 | 4 | #include "exec-cmd.h" |
38124a40 | 5 | #include "run-command.h" |
8af84dad | 6 | #include "levenshtein.h" |
940208a7 | 7 | #include "help.h" |
cfb22a02 | 8 | #include "command-list.h" |
dbfae689 NTND |
9 | #include "string-list.h" |
10 | #include "column.h" | |
816fb46b | 11 | #include "version.h" |
e5618106 | 12 | #include "refs.h" |
b48cbfc5 | 13 | #include "parse-options.h" |
64949984 | 14 | |
cfb22a02 NTND |
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 | }; | |
63eae83f NTND |
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 / Synching Repositories") }, | |
38 | { CAT_purehelpers, N_("Low-level Commands / Internal Helpers") }, | |
39 | { 0, NULL } | |
40 | }; | |
cfb22a02 | 41 | |
1b81d8cb | 42 | static const char *drop_prefix(const char *name, uint32_t category) |
cfb22a02 NTND |
43 | { |
44 | const char *new_name; | |
45 | ||
46 | if (skip_prefix(name, "git-", &new_name)) | |
47 | return new_name; | |
1b81d8cb NTND |
48 | if (category == CAT_guide && skip_prefix(name, "git", &new_name)) |
49 | return new_name; | |
cfb22a02 NTND |
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; | |
1b81d8cb | 71 | cmds[nr].name = drop_prefix(cmd->name, cmd->category); |
cfb22a02 NTND |
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) { | |
1c4b9859 | 86 | size_t len = strlen(cmds[i].name); |
cfb22a02 | 87 | printf(" %s ", cmds[i].name); |
1c4b9859 | 88 | mput_char(' ', longest > len ? longest - len : 1); |
cfb22a02 NTND |
89 | puts(_(cmds[i].help)); |
90 | } | |
91 | } | |
92 | } | |
93 | ||
94 | static int cmd_name_cmp(const void *elem1, const void *elem2) | |
95 | { | |
96 | const struct cmdname_help *e1 = elem1; | |
97 | const struct cmdname_help *e2 = elem2; | |
98 | ||
99 | return strcmp(e1->name, e2->name); | |
100 | } | |
101 | ||
26c7d067 NTND |
102 | static void print_cmd_by_category(const struct category_description *catdesc, |
103 | int *longest_p) | |
cfb22a02 NTND |
104 | { |
105 | struct cmdname_help *cmds; | |
106 | int longest = 0; | |
107 | int i, nr = 0; | |
108 | uint32_t mask = 0; | |
109 | ||
110 | for (i = 0; catdesc[i].desc; i++) | |
111 | mask |= catdesc[i].category; | |
112 | ||
113 | extract_cmds(&cmds, mask); | |
114 | ||
115 | for (i = 0; cmds[i].name; i++, nr++) { | |
116 | if (longest < strlen(cmds[i].name)) | |
117 | longest = strlen(cmds[i].name); | |
118 | } | |
119 | QSORT(cmds, nr, cmd_name_cmp); | |
120 | ||
121 | for (i = 0; catdesc[i].desc; i++) { | |
122 | uint32_t mask = catdesc[i].category; | |
123 | const char *desc = catdesc[i].desc; | |
124 | ||
125 | printf("\n%s\n", _(desc)); | |
126 | print_command_list(cmds, mask, longest); | |
127 | } | |
128 | free(cmds); | |
26c7d067 NTND |
129 | if (longest_p) |
130 | *longest_p = longest; | |
cfb22a02 NTND |
131 | } |
132 | ||
940208a7 | 133 | void add_cmdname(struct cmdnames *cmds, const char *name, int len) |
70827b15 | 134 | { |
96ffc06f JK |
135 | struct cmdname *ent; |
136 | FLEX_ALLOC_MEM(ent, name, name, len); | |
70827b15 | 137 | ent->len = len; |
1eb05690 SP |
138 | |
139 | ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc); | |
140 | cmds->names[cmds->cnt++] = ent; | |
70827b15 LT |
141 | } |
142 | ||
8af84dad JS |
143 | static void clean_cmdnames(struct cmdnames *cmds) |
144 | { | |
145 | int i; | |
146 | for (i = 0; i < cmds->cnt; ++i) | |
147 | free(cmds->names[i]); | |
148 | free(cmds->names); | |
149 | cmds->cnt = 0; | |
150 | cmds->alloc = 0; | |
151 | } | |
152 | ||
70827b15 LT |
153 | static int cmdname_compare(const void *a_, const void *b_) |
154 | { | |
155 | struct cmdname *a = *(struct cmdname **)a_; | |
156 | struct cmdname *b = *(struct cmdname **)b_; | |
157 | return strcmp(a->name, b->name); | |
158 | } | |
159 | ||
1eb05690 SP |
160 | static void uniq(struct cmdnames *cmds) |
161 | { | |
162 | int i, j; | |
163 | ||
164 | if (!cmds->cnt) | |
165 | return; | |
166 | ||
4a15758f JK |
167 | for (i = j = 1; i < cmds->cnt; i++) { |
168 | if (!strcmp(cmds->names[i]->name, cmds->names[j-1]->name)) | |
169 | free(cmds->names[i]); | |
170 | else | |
1eb05690 | 171 | cmds->names[j++] = cmds->names[i]; |
4a15758f | 172 | } |
1eb05690 SP |
173 | |
174 | cmds->cnt = j; | |
175 | } | |
176 | ||
940208a7 | 177 | void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) |
f3fa1838 | 178 | { |
1eb05690 SP |
179 | int ci, cj, ei; |
180 | int cmp; | |
181 | ||
182 | ci = cj = ei = 0; | |
183 | while (ci < cmds->cnt && ei < excludes->cnt) { | |
184 | cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name); | |
185 | if (cmp < 0) | |
186 | cmds->names[cj++] = cmds->names[ci++]; | |
6a17f583 JH |
187 | else if (cmp == 0) { |
188 | ei++; | |
189 | free(cmds->names[ci++]); | |
190 | } else if (cmp > 0) | |
1eb05690 SP |
191 | ei++; |
192 | } | |
193 | ||
194 | while (ci < cmds->cnt) | |
195 | cmds->names[cj++] = cmds->names[ci++]; | |
196 | ||
197 | cmds->cnt = cj; | |
198 | } | |
199 | ||
d10cb3df | 200 | static void pretty_print_cmdnames(struct cmdnames *cmds, unsigned int colopts) |
70827b15 | 201 | { |
dbfae689 NTND |
202 | struct string_list list = STRING_LIST_INIT_NODUP; |
203 | struct column_options copts; | |
204 | int i; | |
70827b15 | 205 | |
dbfae689 NTND |
206 | for (i = 0; i < cmds->cnt; i++) |
207 | string_list_append(&list, cmds->names[i]->name); | |
208 | /* | |
209 | * always enable column display, we only consult column.* | |
210 | * about layout strategy and stuff | |
211 | */ | |
212 | colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED; | |
213 | memset(&copts, 0, sizeof(copts)); | |
214 | copts.indent = " "; | |
215 | copts.padding = 2; | |
216 | print_columns(&list, colopts, &copts); | |
217 | string_list_clear(&list, 0); | |
70827b15 LT |
218 | } |
219 | ||
e321180e | 220 | static void list_commands_in_dir(struct cmdnames *cmds, |
940208a7 MV |
221 | const char *path, |
222 | const char *prefix) | |
70827b15 | 223 | { |
1eb05690 | 224 | DIR *dir = opendir(path); |
70827b15 | 225 | struct dirent *de; |
f5d600e2 JS |
226 | struct strbuf buf = STRBUF_INIT; |
227 | int len; | |
70827b15 | 228 | |
f5d600e2 | 229 | if (!dir) |
e321180e | 230 | return; |
940208a7 MV |
231 | if (!prefix) |
232 | prefix = "git-"; | |
70827b15 | 233 | |
f5d600e2 JS |
234 | strbuf_addf(&buf, "%s/", path); |
235 | len = buf.len; | |
236 | ||
70827b15 | 237 | while ((de = readdir(dir)) != NULL) { |
de8118e1 | 238 | const char *ent; |
26936bfd | 239 | size_t entlen; |
70827b15 | 240 | |
de8118e1 | 241 | if (!skip_prefix(de->d_name, prefix, &ent)) |
70827b15 | 242 | continue; |
0966003c | 243 | |
f5d600e2 JS |
244 | strbuf_setlen(&buf, len); |
245 | strbuf_addstr(&buf, de->d_name); | |
246 | if (!is_executable(buf.buf)) | |
70827b15 LT |
247 | continue; |
248 | ||
de8118e1 | 249 | entlen = strlen(ent); |
6e409473 | 250 | strip_suffix(ent, ".exe", &entlen); |
70827b15 | 251 | |
de8118e1 | 252 | add_cmdname(cmds, ent, entlen); |
70827b15 LT |
253 | } |
254 | closedir(dir); | |
f5d600e2 | 255 | strbuf_release(&buf); |
1eb05690 SP |
256 | } |
257 | ||
e321180e | 258 | void load_command_list(const char *prefix, |
940208a7 MV |
259 | struct cmdnames *main_cmds, |
260 | struct cmdnames *other_cmds) | |
1eb05690 | 261 | { |
1eb05690 | 262 | const char *env_path = getenv("PATH"); |
1eb05690 SP |
263 | const char *exec_path = git_exec_path(); |
264 | ||
1f08e5ce | 265 | if (exec_path) { |
e321180e | 266 | list_commands_in_dir(main_cmds, exec_path, prefix); |
9ed0d8d6 | 267 | QSORT(main_cmds->names, main_cmds->cnt, cmdname_compare); |
1f08e5ce | 268 | uniq(main_cmds); |
1eb05690 SP |
269 | } |
270 | ||
1f08e5ce AR |
271 | if (env_path) { |
272 | char *paths, *path, *colon; | |
273 | path = paths = xstrdup(env_path); | |
274 | while (1) { | |
275 | if ((colon = strchr(path, PATH_SEP))) | |
276 | *colon = 0; | |
746c221a PB |
277 | if (!exec_path || strcmp(path, exec_path)) |
278 | list_commands_in_dir(other_cmds, path, prefix); | |
1eb05690 | 279 | |
1f08e5ce AR |
280 | if (!colon) |
281 | break; | |
282 | path = colon + 1; | |
283 | } | |
284 | free(paths); | |
1eb05690 | 285 | |
9ed0d8d6 | 286 | QSORT(other_cmds->names, other_cmds->cnt, cmdname_compare); |
1f08e5ce AR |
287 | uniq(other_cmds); |
288 | } | |
940208a7 | 289 | exclude_cmds(other_cmds, main_cmds); |
2156435f JK |
290 | } |
291 | ||
f4ed0af6 | 292 | void list_commands(unsigned int colopts, |
dbfae689 | 293 | struct cmdnames *main_cmds, struct cmdnames *other_cmds) |
2156435f | 294 | { |
940208a7 | 295 | if (main_cmds->cnt) { |
61c5d431 | 296 | const char *exec_path = git_exec_path(); |
4470ef94 | 297 | printf_ln(_("available git commands in '%s'"), exec_path); |
1eb05690 | 298 | putchar('\n'); |
d10cb3df | 299 | pretty_print_cmdnames(main_cmds, colopts); |
1eb05690 SP |
300 | putchar('\n'); |
301 | } | |
302 | ||
940208a7 | 303 | if (other_cmds->cnt) { |
4470ef94 | 304 | printf_ln(_("git commands available from elsewhere on your $PATH")); |
940208a7 | 305 | putchar('\n'); |
d10cb3df | 306 | pretty_print_cmdnames(other_cmds, colopts); |
1eb05690 SP |
307 | putchar('\n'); |
308 | } | |
70827b15 LT |
309 | } |
310 | ||
1542d4cd | 311 | void list_common_cmds_help(void) |
22414770 | 312 | { |
22414770 | 313 | puts(_("These are common Git commands used in various situations:")); |
26c7d067 | 314 | print_cmd_by_category(common_categories, NULL); |
1542d4cd | 315 | } |
22414770 | 316 | |
6bb2dc0b NTND |
317 | void list_all_main_cmds(struct string_list *list) |
318 | { | |
319 | struct cmdnames main_cmds, other_cmds; | |
320 | int i; | |
321 | ||
322 | memset(&main_cmds, 0, sizeof(main_cmds)); | |
323 | memset(&other_cmds, 0, sizeof(other_cmds)); | |
324 | load_command_list("git-", &main_cmds, &other_cmds); | |
325 | ||
326 | for (i = 0; i < main_cmds.cnt; i++) | |
327 | string_list_append(list, main_cmds.names[i]->name); | |
328 | ||
329 | clean_cmdnames(&main_cmds); | |
330 | clean_cmdnames(&other_cmds); | |
22414770 SG |
331 | } |
332 | ||
6bb2dc0b | 333 | void list_all_other_cmds(struct string_list *list) |
1542d4cd | 334 | { |
6bb2dc0b NTND |
335 | struct cmdnames main_cmds, other_cmds; |
336 | int i; | |
1542d4cd | 337 | |
6bb2dc0b NTND |
338 | memset(&main_cmds, 0, sizeof(main_cmds)); |
339 | memset(&other_cmds, 0, sizeof(other_cmds)); | |
340 | load_command_list("git-", &main_cmds, &other_cmds); | |
1542d4cd | 341 | |
6bb2dc0b NTND |
342 | for (i = 0; i < other_cmds.cnt; i++) |
343 | string_list_append(list, other_cmds.names[i]->name); | |
22414770 | 344 | |
6bb2dc0b NTND |
345 | clean_cmdnames(&main_cmds); |
346 | clean_cmdnames(&other_cmds); | |
347 | } | |
348 | ||
3c777767 NTND |
349 | void list_cmds_by_category(struct string_list *list, |
350 | const char *cat) | |
351 | { | |
352 | int i, n = ARRAY_SIZE(command_list); | |
353 | uint32_t cat_id = 0; | |
22414770 | 354 | |
3c777767 NTND |
355 | for (i = 0; category_names[i]; i++) { |
356 | if (!strcmp(cat, category_names[i])) { | |
357 | cat_id = 1UL << i; | |
358 | break; | |
22414770 | 359 | } |
3c777767 NTND |
360 | } |
361 | if (!cat_id) | |
362 | die(_("unsupported command listing type '%s'"), cat); | |
363 | ||
364 | for (i = 0; i < n; i++) { | |
365 | struct cmdname_help *cmd = command_list + i; | |
366 | ||
1b81d8cb NTND |
367 | if (!(cmd->category & cat_id)) |
368 | continue; | |
369 | string_list_append(list, drop_prefix(cmd->name, cmd->category)); | |
3c777767 NTND |
370 | } |
371 | } | |
372 | ||
6532f374 NTND |
373 | void list_cmds_by_config(struct string_list *list) |
374 | { | |
375 | const char *cmd_list; | |
376 | ||
377 | /* | |
378 | * There's no actual repository setup at this point (and even | |
379 | * if there is, we don't really care; only global config | |
380 | * matters). If we accidentally set up a repository, it's ok | |
381 | * too since the caller (git --list-cmds=) should exit shortly | |
382 | * anyway. | |
383 | */ | |
384 | if (git_config_get_string_const("completion.commands", &cmd_list)) | |
385 | return; | |
386 | ||
387 | string_list_sort(list); | |
388 | string_list_remove_duplicates(list, 0); | |
389 | ||
390 | while (*cmd_list) { | |
391 | struct strbuf sb = STRBUF_INIT; | |
392 | const char *p = strchrnul(cmd_list, ' '); | |
22414770 | 393 | |
6532f374 NTND |
394 | strbuf_add(&sb, cmd_list, p - cmd_list); |
395 | if (*cmd_list == '-') | |
396 | string_list_remove(list, cmd_list + 1, 0); | |
397 | else | |
398 | string_list_insert(list, sb.buf); | |
399 | strbuf_release(&sb); | |
400 | while (*p == ' ') | |
401 | p++; | |
402 | cmd_list = p; | |
1542d4cd JH |
403 | } |
404 | } | |
405 | ||
1b81d8cb NTND |
406 | void list_common_guides_help(void) |
407 | { | |
408 | struct category_description catdesc[] = { | |
409 | { CAT_guide, N_("The common Git guides are:") }, | |
410 | { 0, NULL } | |
411 | }; | |
26c7d067 | 412 | print_cmd_by_category(catdesc, NULL); |
1b81d8cb NTND |
413 | putchar('\n'); |
414 | } | |
415 | ||
3ac68a93 NTND |
416 | struct slot_expansion { |
417 | const char *prefix; | |
418 | const char *placeholder; | |
419 | void (*fn)(struct string_list *list, const char *prefix); | |
420 | int found; | |
421 | }; | |
422 | ||
e17ca926 | 423 | void list_config_help(int for_human) |
3ac68a93 NTND |
424 | { |
425 | struct slot_expansion slot_expansions[] = { | |
426 | { "advice", "*", list_config_advices }, | |
427 | { "color.branch", "<slot>", list_config_color_branch_slots }, | |
428 | { "color.decorate", "<slot>", list_config_color_decorate_slots }, | |
429 | { "color.diff", "<slot>", list_config_color_diff_slots }, | |
430 | { "color.grep", "<slot>", list_config_color_grep_slots }, | |
431 | { "color.interactive", "<slot>", list_config_color_interactive_slots }, | |
bf1a11f0 | 432 | { "color.remote", "<slot>", list_config_color_sideband_slots }, |
3ac68a93 NTND |
433 | { "color.status", "<slot>", list_config_color_status_slots }, |
434 | { "fsck", "<msg-id>", list_config_fsck_msg_ids }, | |
435 | { "receive.fsck", "<msg-id>", list_config_fsck_msg_ids }, | |
436 | { NULL, NULL, NULL } | |
437 | }; | |
438 | const char **p; | |
439 | struct slot_expansion *e; | |
440 | struct string_list keys = STRING_LIST_INIT_DUP; | |
441 | int i; | |
442 | ||
443 | for (p = config_name_list; *p; p++) { | |
444 | const char *var = *p; | |
445 | struct strbuf sb = STRBUF_INIT; | |
446 | ||
447 | for (e = slot_expansions; e->prefix; e++) { | |
448 | ||
449 | strbuf_reset(&sb); | |
450 | strbuf_addf(&sb, "%s.%s", e->prefix, e->placeholder); | |
451 | if (!strcasecmp(var, sb.buf)) { | |
452 | e->fn(&keys, e->prefix); | |
453 | e->found++; | |
454 | break; | |
455 | } | |
456 | } | |
457 | strbuf_release(&sb); | |
458 | if (!e->prefix) | |
459 | string_list_append(&keys, var); | |
460 | } | |
461 | ||
462 | for (e = slot_expansions; e->prefix; e++) | |
463 | if (!e->found) | |
464 | BUG("slot_expansion %s.%s is not used", | |
465 | e->prefix, e->placeholder); | |
466 | ||
467 | string_list_sort(&keys); | |
e17ca926 NTND |
468 | for (i = 0; i < keys.nr; i++) { |
469 | const char *var = keys.items[i].string; | |
470 | const char *wildcard, *tag, *cut; | |
471 | ||
472 | if (for_human) { | |
473 | puts(var); | |
474 | continue; | |
475 | } | |
476 | ||
477 | wildcard = strchr(var, '*'); | |
478 | tag = strchr(var, '<'); | |
479 | ||
480 | if (!wildcard && !tag) { | |
481 | puts(var); | |
482 | continue; | |
483 | } | |
484 | ||
485 | if (wildcard && !tag) | |
486 | cut = wildcard; | |
487 | else if (!wildcard && tag) | |
488 | cut = tag; | |
489 | else | |
490 | cut = wildcard < tag ? wildcard : tag; | |
491 | ||
492 | /* | |
493 | * We may produce duplicates, but that's up to | |
494 | * git-completion.bash to handle | |
495 | */ | |
496 | printf("%.*s\n", (int)(cut - var), var); | |
497 | } | |
3ac68a93 NTND |
498 | string_list_clear(&keys, 0); |
499 | } | |
500 | ||
26c7d067 NTND |
501 | static int get_alias(const char *var, const char *value, void *data) |
502 | { | |
503 | struct string_list *list = data; | |
504 | ||
505 | if (skip_prefix(var, "alias.", &var)) | |
506 | string_list_append(list, var)->util = xstrdup(value); | |
507 | ||
508 | return 0; | |
509 | } | |
510 | ||
63eae83f NTND |
511 | void list_all_cmds_help(void) |
512 | { | |
26c7d067 NTND |
513 | struct string_list others = STRING_LIST_INIT_DUP; |
514 | struct string_list alias_list = STRING_LIST_INIT_DUP; | |
515 | struct cmdname_help *aliases; | |
516 | int i, longest; | |
517 | ||
518 | printf_ln(_("See 'git help <command>' to read about a specific subcommand")); | |
519 | print_cmd_by_category(main_categories, &longest); | |
520 | ||
521 | list_all_other_cmds(&others); | |
522 | if (others.nr) | |
523 | printf("\n%s\n", _("External commands")); | |
524 | for (i = 0; i < others.nr; i++) | |
525 | printf(" %s\n", others.items[i].string); | |
526 | string_list_clear(&others, 0); | |
527 | ||
528 | git_config(get_alias, &alias_list); | |
529 | string_list_sort(&alias_list); | |
1c4b9859 JS |
530 | |
531 | for (i = 0; i < alias_list.nr; i++) { | |
532 | size_t len = strlen(alias_list.items[i].string); | |
533 | if (longest < len) | |
534 | longest = len; | |
535 | } | |
536 | ||
26c7d067 NTND |
537 | if (alias_list.nr) { |
538 | printf("\n%s\n", _("Command aliases")); | |
539 | ALLOC_ARRAY(aliases, alias_list.nr + 1); | |
540 | for (i = 0; i < alias_list.nr; i++) { | |
541 | aliases[i].name = alias_list.items[i].string; | |
542 | aliases[i].help = alias_list.items[i].util; | |
543 | aliases[i].category = 1; | |
544 | } | |
545 | aliases[alias_list.nr].name = NULL; | |
546 | print_command_list(aliases, 1, longest); | |
547 | free(aliases); | |
548 | } | |
549 | string_list_clear(&alias_list, 1); | |
63eae83f NTND |
550 | } |
551 | ||
940208a7 | 552 | int is_in_cmdlist(struct cmdnames *c, const char *s) |
2156435f JK |
553 | { |
554 | int i; | |
555 | for (i = 0; i < c->cnt; i++) | |
556 | if (!strcmp(s, c->names[i]->name)) | |
557 | return 1; | |
558 | return 0; | |
559 | } | |
560 | ||
f0e90716 | 561 | static int autocorrect; |
746c221a | 562 | static struct cmdnames aliases; |
f0e90716 AR |
563 | |
564 | static int git_unknown_cmd_config(const char *var, const char *value, void *cb) | |
565 | { | |
ae021d87 JK |
566 | const char *p; |
567 | ||
f0e90716 AR |
568 | if (!strcmp(var, "help.autocorrect")) |
569 | autocorrect = git_config_int(var,value); | |
746c221a | 570 | /* Also use aliases for command lookup */ |
ae021d87 JK |
571 | if (skip_prefix(var, "alias.", &p)) |
572 | add_cmdname(&aliases, p, strlen(p)); | |
f0e90716 AR |
573 | |
574 | return git_default_config(var, value, cb); | |
575 | } | |
576 | ||
8af84dad | 577 | static int levenshtein_compare(const void *p1, const void *p2) |
822a7d50 | 578 | { |
8af84dad JS |
579 | const struct cmdname *const *c1 = p1, *const *c2 = p2; |
580 | const char *s1 = (*c1)->name, *s2 = (*c2)->name; | |
581 | int l1 = (*c1)->len; | |
582 | int l2 = (*c2)->len; | |
583 | return l1 != l2 ? l1 - l2 : strcmp(s1, s2); | |
584 | } | |
585 | ||
746c221a PB |
586 | static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old) |
587 | { | |
588 | int i; | |
589 | ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc); | |
590 | ||
591 | for (i = 0; i < old->cnt; i++) | |
592 | cmds->names[cmds->cnt++] = old->names[i]; | |
88ce3ef6 | 593 | FREE_AND_NULL(old->names); |
746c221a | 594 | old->cnt = 0; |
746c221a PB |
595 | } |
596 | ||
06500a02 | 597 | /* An empirically derived magic number */ |
6612b9e4 EFL |
598 | #define SIMILARITY_FLOOR 7 |
599 | #define SIMILAR_ENOUGH(x) ((x) < SIMILARITY_FLOOR) | |
06500a02 | 600 | |
823e0ded MS |
601 | static const char bad_interpreter_advice[] = |
602 | N_("'%s' appears to be a git command, but we were not\n" | |
603 | "able to execute it. Maybe git-%s is broken?"); | |
604 | ||
8af84dad | 605 | const char *help_unknown_cmd(const char *cmd) |
822a7d50 | 606 | { |
8af84dad JS |
607 | int i, n, best_similarity = 0; |
608 | struct cmdnames main_cmds, other_cmds; | |
cfb22a02 | 609 | struct cmdname_help *common_cmds; |
8af84dad JS |
610 | |
611 | memset(&main_cmds, 0, sizeof(main_cmds)); | |
0b74f5dc | 612 | memset(&other_cmds, 0, sizeof(other_cmds)); |
746c221a | 613 | memset(&aliases, 0, sizeof(aliases)); |
8af84dad | 614 | |
659fef19 | 615 | read_early_config(git_unknown_cmd_config, NULL); |
f0e90716 | 616 | |
8af84dad JS |
617 | load_command_list("git-", &main_cmds, &other_cmds); |
618 | ||
746c221a PB |
619 | add_cmd_list(&main_cmds, &aliases); |
620 | add_cmd_list(&main_cmds, &other_cmds); | |
9ed0d8d6 | 621 | QSORT(main_cmds.names, main_cmds.cnt, cmdname_compare); |
746c221a | 622 | uniq(&main_cmds); |
8af84dad | 623 | |
cfb22a02 NTND |
624 | extract_cmds(&common_cmds, common_mask); |
625 | ||
6612b9e4 EFL |
626 | /* This abuses cmdname->len for levenshtein distance */ |
627 | for (i = 0, n = 0; i < main_cmds.cnt; i++) { | |
628 | int cmp = 0; /* avoid compiler stupidity */ | |
629 | const char *candidate = main_cmds.names[i]->name; | |
630 | ||
823e0ded MS |
631 | /* |
632 | * An exact match means we have the command, but | |
633 | * for some reason exec'ing it gave us ENOENT; probably | |
634 | * it's a bad interpreter in the #! line. | |
635 | */ | |
636 | if (!strcmp(candidate, cmd)) | |
637 | die(_(bad_interpreter_advice), cmd, cmd); | |
638 | ||
6612b9e4 | 639 | /* Does the candidate appear in common_cmds list? */ |
cfb22a02 | 640 | while (common_cmds[n].name && |
6612b9e4 EFL |
641 | (cmp = strcmp(common_cmds[n].name, candidate)) < 0) |
642 | n++; | |
cfb22a02 | 643 | if (common_cmds[n].name && !cmp) { |
6612b9e4 EFL |
644 | /* Yes, this is one of the common commands */ |
645 | n++; /* use the entry from common_cmds[] */ | |
59556548 | 646 | if (starts_with(candidate, cmd)) { |
6612b9e4 EFL |
647 | /* Give prefix match a very good score */ |
648 | main_cmds.names[i]->len = 0; | |
649 | continue; | |
650 | } | |
651 | } | |
652 | ||
8af84dad | 653 | main_cmds.names[i]->len = |
c41494f8 | 654 | levenshtein(cmd, candidate, 0, 2, 1, 3) + 1; |
6612b9e4 | 655 | } |
cfb22a02 | 656 | FREE_AND_NULL(common_cmds); |
8af84dad | 657 | |
9ed0d8d6 | 658 | QSORT(main_cmds.names, main_cmds.cnt, levenshtein_compare); |
8af84dad JS |
659 | |
660 | if (!main_cmds.cnt) | |
9665627d | 661 | die(_("Uh oh. Your system reports no Git commands at all.")); |
8af84dad | 662 | |
6612b9e4 EFL |
663 | /* skip and count prefix matches */ |
664 | for (n = 0; n < main_cmds.cnt && !main_cmds.names[n]->len; n++) | |
665 | ; /* still counting */ | |
666 | ||
667 | if (main_cmds.cnt <= n) { | |
668 | /* prefix matches with everything? that is too ambiguous */ | |
669 | best_similarity = SIMILARITY_FLOOR + 1; | |
670 | } else { | |
671 | /* count all the most similar ones */ | |
672 | for (best_similarity = main_cmds.names[n++]->len; | |
673 | (n < main_cmds.cnt && | |
674 | best_similarity == main_cmds.names[n]->len); | |
675 | n++) | |
676 | ; /* still counting */ | |
677 | } | |
06500a02 | 678 | if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) { |
8af84dad JS |
679 | const char *assumed = main_cmds.names[0]->name; |
680 | main_cmds.names[0] = NULL; | |
681 | clean_cmdnames(&main_cmds); | |
9665627d NTND |
682 | fprintf_ln(stderr, |
683 | _("WARNING: You called a Git command named '%s', " | |
968b1fe2 MB |
684 | "which does not exist."), |
685 | cmd); | |
686 | if (autocorrect < 0) | |
687 | fprintf_ln(stderr, | |
688 | _("Continuing under the assumption that " | |
689 | "you meant '%s'."), | |
690 | assumed); | |
691 | else { | |
692 | fprintf_ln(stderr, | |
693 | _("Continuing in %0.1f seconds, " | |
694 | "assuming that you meant '%s'."), | |
695 | (float)autocorrect/10.0, assumed); | |
2024d317 | 696 | sleep_millisec(autocorrect * 100); |
f0e90716 | 697 | } |
8af84dad JS |
698 | return assumed; |
699 | } | |
700 | ||
9665627d | 701 | fprintf_ln(stderr, _("git: '%s' is not a git command. See 'git --help'."), cmd); |
8af84dad | 702 | |
06500a02 | 703 | if (SIMILAR_ENOUGH(best_similarity)) { |
9665627d | 704 | fprintf_ln(stderr, |
6c486862 JNA |
705 | Q_("\nThe most similar command is", |
706 | "\nThe most similar commands are", | |
9665627d | 707 | n)); |
8af84dad JS |
708 | |
709 | for (i = 0; i < n; i++) | |
710 | fprintf(stderr, "\t%s\n", main_cmds.names[i]->name); | |
711 | } | |
712 | ||
822a7d50 RJ |
713 | exit(1); |
714 | } | |
715 | ||
a633fca0 | 716 | int cmd_version(int argc, const char **argv, const char *prefix) |
70827b15 | 717 | { |
b48cbfc5 JK |
718 | int build_options = 0; |
719 | const char * const usage[] = { | |
720 | N_("git version [<options>]"), | |
721 | NULL | |
722 | }; | |
723 | struct option options[] = { | |
724 | OPT_BOOL(0, "build-options", &build_options, | |
725 | "also print build options"), | |
726 | OPT_END() | |
727 | }; | |
728 | ||
729 | argc = parse_options(argc, argv, prefix, options, usage, 0); | |
730 | ||
f2de0b97 DA |
731 | /* |
732 | * The format of this string should be kept stable for compatibility | |
733 | * with external projects that rely on the output of "git version". | |
b48cbfc5 JK |
734 | * |
735 | * Always show the version, even if other options are given. | |
f2de0b97 | 736 | */ |
70827b15 | 737 | printf("git version %s\n", git_version_string); |
b48cbfc5 JK |
738 | |
739 | if (build_options) { | |
b2289404 | 740 | printf("cpu: %s\n", GIT_HOST_CPU); |
ed32b788 JS |
741 | if (git_built_from_commit_string[0]) |
742 | printf("built from commit: %s\n", | |
743 | git_built_from_commit_string); | |
744 | else | |
745 | printf("no commit associated with this build\n"); | |
b48cbfc5 | 746 | printf("sizeof-long: %d\n", (int)sizeof(long)); |
6c213e86 | 747 | printf("sizeof-size_t: %d\n", (int)sizeof(size_t)); |
b48cbfc5 | 748 | /* NEEDSWORK: also save and output GIT-BUILD_OPTIONS? */ |
6b9c38e1 | 749 | } |
70827b15 LT |
750 | return 0; |
751 | } | |
e5618106 VV |
752 | |
753 | struct similar_ref_cb { | |
754 | const char *base_ref; | |
755 | struct string_list *similar_refs; | |
756 | }; | |
757 | ||
91d6e94e | 758 | static int append_similar_ref(const char *refname, const struct object_id *oid, |
e5618106 VV |
759 | int flags, void *cb_data) |
760 | { | |
761 | struct similar_ref_cb *cb = (struct similar_ref_cb *)(cb_data); | |
762 | char *branch = strrchr(refname, '/') + 1; | |
95b567c7 JK |
763 | const char *remote; |
764 | ||
e5618106 | 765 | /* A remote branch of the same name is deemed similar */ |
95b567c7 | 766 | if (skip_prefix(refname, "refs/remotes/", &remote) && |
e5618106 | 767 | !strcmp(branch, cb->base_ref)) |
95b567c7 | 768 | string_list_append(cb->similar_refs, remote); |
e5618106 VV |
769 | return 0; |
770 | } | |
771 | ||
772 | static struct string_list guess_refs(const char *ref) | |
773 | { | |
774 | struct similar_ref_cb ref_cb; | |
775 | struct string_list similar_refs = STRING_LIST_INIT_NODUP; | |
776 | ||
777 | ref_cb.base_ref = ref; | |
778 | ref_cb.similar_refs = &similar_refs; | |
779 | for_each_ref(append_similar_ref, &ref_cb); | |
780 | return similar_refs; | |
781 | } | |
782 | ||
783 | void help_unknown_ref(const char *ref, const char *cmd, const char *error) | |
784 | { | |
785 | int i; | |
786 | struct string_list suggested_refs = guess_refs(ref); | |
787 | ||
788 | fprintf_ln(stderr, _("%s: %s - %s"), cmd, ref, error); | |
789 | ||
790 | if (suggested_refs.nr > 0) { | |
791 | fprintf_ln(stderr, | |
792 | Q_("\nDid you mean this?", | |
793 | "\nDid you mean one of these?", | |
794 | suggested_refs.nr)); | |
795 | for (i = 0; i < suggested_refs.nr; i++) | |
796 | fprintf(stderr, "\t%s\n", suggested_refs.items[i].string); | |
797 | } | |
798 | ||
799 | string_list_clear(&suggested_refs, 0); | |
800 | exit(1); | |
801 | } |