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chromium / external / github.com / git / git / refs/tags/v2.10.5 / . / help.c
blob: 2ff3b5a7745dbb7937896fb2303c9299387929de [file] [log] [blame]
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]1#include "cache.h"
2#include "builtin.h"
3#include "exec_cmd.h"
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]4#include "levenshtein.h"
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]5#include "help.h"
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]6#include "common-cmds.h"
Nguyễn Thái Ngọc Duydbfae682012-04-13 10:54:37[diff] [blame]7#include "string-list.h"
8#include "column.h"
Jeff King816fb462012-06-02 18:51:42[diff] [blame]9#include "version.h"
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]10#include "refs.h"
Christian Couder64949982008-03-07 07:46:28[diff] [blame]11
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]12void add_cmdname(struct cmdnames *cmds, const char *name, int len)
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]13{
Jeff King96ffc062016-02-22 22:44:32[diff] [blame]14 struct cmdname *ent;
15 FLEX_ALLOC_MEM(ent, name, name, len);
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]16 ent->len = len;
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]17
18 ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc);
19 cmds->names[cmds->cnt++] = ent;
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]20}
21
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]22static void clean_cmdnames(struct cmdnames *cmds)
23{
24 int i;
25 for (i = 0; i < cmds->cnt; ++i)
26 free(cmds->names[i]);
27 free(cmds->names);
28 cmds->cnt = 0;
29 cmds->alloc = 0;
30}
31
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]32static int cmdname_compare(const void *a_, const void *b_)
33{
34 struct cmdname *a = *(struct cmdname **)a_;
35 struct cmdname *b = *(struct cmdname **)b_;
36 return strcmp(a->name, b->name);
37}
38
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]39static void uniq(struct cmdnames *cmds)
40{
41 int i, j;
42
43 if (!cmds->cnt)
44 return;
45
Jeff King4a157582012-07-25 16:16:19[diff] [blame]46 for (i = j = 1; i < cmds->cnt; i++) {
47 if (!strcmp(cmds->names[i]->name, cmds->names[j-1]->name))
48 free(cmds->names[i]);
49 else
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]50 cmds->names[j++] = cmds->names[i];
Jeff King4a157582012-07-25 16:16:19[diff] [blame]51 }
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]52
53 cmds->cnt = j;
54}
55
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]56void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
Junio C Hamanof3fa1832007-11-08 23:35:32[diff] [blame]57{
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]58 int ci, cj, ei;
59 int cmp;
60
61 ci = cj = ei = 0;
62 while (ci < cmds->cnt && ei < excludes->cnt) {
63 cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name);
64 if (cmp < 0)
65 cmds->names[cj++] = cmds->names[ci++];
Junio C Hamano6a17f582012-07-25 18:01:12[diff] [blame]66 else if (cmp == 0) {
67 ei++;
68 free(cmds->names[ci++]);
69 } else if (cmp > 0)
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]70 ei++;
71 }
72
73 while (ci < cmds->cnt)
74 cmds->names[cj++] = cmds->names[ci++];
75
76 cmds->cnt = cj;
77}
78
Ralf Thielowd10cb3d2014-02-28 19:27:29[diff] [blame]79static void pretty_print_cmdnames(struct cmdnames *cmds, unsigned int colopts)
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]80{
Nguyễn Thái Ngọc Duydbfae682012-04-13 10:54:37[diff] [blame]81 struct string_list list = STRING_LIST_INIT_NODUP;
82 struct column_options copts;
83 int i;
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]84
Nguyễn Thái Ngọc Duydbfae682012-04-13 10:54:37[diff] [blame]85 for (i = 0; i < cmds->cnt; i++)
86 string_list_append(&list, cmds->names[i]->name);
87 /*
88 * always enable column display, we only consult column.*
89 * about layout strategy and stuff
90 */
91 colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
92 memset(&copts, 0, sizeof(copts));
93 copts.indent = " ";
94 copts.padding = 2;
95 print_columns(&list, colopts, &copts);
96 string_list_clear(&list, 0);
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]97}
98
Johannes Sixtcc3b7a92008-01-14 13:05:33[diff] [blame]99static int is_executable(const char *name)
100{
101 struct stat st;
102
103 if (stat(name, &st) || /* stat, not lstat */
104 !S_ISREG(st.st_mode))
105 return 0;
106
Ramsay Jonesf66450a2013-06-22 19:42:47[diff] [blame]107#if defined(GIT_WINDOWS_NATIVE)
Frank Li0d30ad72009-09-16 08:20:17[diff] [blame]108{ /* cannot trust the executable bit, peek into the file instead */
Johannes Sixtcc3b7a92008-01-14 13:05:33[diff] [blame]109 char buf[3] = { 0 };
110 int n;
111 int fd = open(name, O_RDONLY);
112 st.st_mode &= ~S_IXUSR;
113 if (fd >= 0) {
114 n = read(fd, buf, 2);
115 if (n == 2)
116 /* DOS executables start with "MZ" */
117 if (!strcmp(buf, "#!") || !strcmp(buf, "MZ"))
118 st.st_mode |= S_IXUSR;
119 close(fd);
120 }
Frank Li0d30ad72009-09-16 08:20:17[diff] [blame]121}
Johannes Sixtcc3b7a92008-01-14 13:05:33[diff] [blame]122#endif
123 return st.st_mode & S_IXUSR;
124}
125
Alex Riesene3211802008-08-28 17:15:33[diff] [blame]126static void list_commands_in_dir(struct cmdnames *cmds,
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]127 const char *path,
128 const char *prefix)
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]129{
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]130 DIR *dir = opendir(path);
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]131 struct dirent *de;
Johannes Schindelinf5d600e2008-07-27 20:34:14[diff] [blame]132 struct strbuf buf = STRBUF_INIT;
133 int len;
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]134
Johannes Schindelinf5d600e2008-07-27 20:34:14[diff] [blame]135 if (!dir)
Alex Riesene3211802008-08-28 17:15:33[diff] [blame]136 return;
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]137 if (!prefix)
138 prefix = "git-";
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]139
Johannes Schindelinf5d600e2008-07-27 20:34:14[diff] [blame]140 strbuf_addf(&buf, "%s/", path);
141 len = buf.len;
142
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]143 while ((de = readdir(dir)) != NULL) {
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]144 const char *ent;
Jeff King26936bf2014-06-30 16:58:51[diff] [blame]145 size_t entlen;
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]146
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]147 if (!skip_prefix(de->d_name, prefix, &ent))
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]148 continue;
Scott R Parish09660032007-10-27 08:36:52[diff] [blame]149
Johannes Schindelinf5d600e2008-07-27 20:34:14[diff] [blame]150 strbuf_setlen(&buf, len);
151 strbuf_addstr(&buf, de->d_name);
152 if (!is_executable(buf.buf))
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]153 continue;
154
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]155 entlen = strlen(ent);
Junio C Hamano6e409472014-07-16 18:25:59[diff] [blame]156 strip_suffix(ent, ".exe", &entlen);
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]157
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]158 add_cmdname(cmds, ent, entlen);
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]159 }
160 closedir(dir);
Johannes Schindelinf5d600e2008-07-27 20:34:14[diff] [blame]161 strbuf_release(&buf);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]162}
163
Alex Riesene3211802008-08-28 17:15:33[diff] [blame]164void load_command_list(const char *prefix,
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]165 struct cmdnames *main_cmds,
166 struct cmdnames *other_cmds)
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]167{
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]168 const char *env_path = getenv("PATH");
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]169 const char *exec_path = git_exec_path();
170
Alex Riesen1f08e5c2008-08-28 17:19:07[diff] [blame]171 if (exec_path) {
Alex Riesene3211802008-08-28 17:15:33[diff] [blame]172 list_commands_in_dir(main_cmds, exec_path, prefix);
Alex Riesen1f08e5c2008-08-28 17:19:07[diff] [blame]173 qsort(main_cmds->names, main_cmds->cnt,
174 sizeof(*main_cmds->names), cmdname_compare);
175 uniq(main_cmds);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]176 }
177
Alex Riesen1f08e5c2008-08-28 17:19:07[diff] [blame]178 if (env_path) {
179 char *paths, *path, *colon;
180 path = paths = xstrdup(env_path);
181 while (1) {
182 if ((colon = strchr(path, PATH_SEP)))
183 *colon = 0;
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]184 if (!exec_path || strcmp(path, exec_path))
185 list_commands_in_dir(other_cmds, path, prefix);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]186
Alex Riesen1f08e5c2008-08-28 17:19:07[diff] [blame]187 if (!colon)
188 break;
189 path = colon + 1;
190 }
191 free(paths);
192
193 qsort(other_cmds->names, other_cmds->cnt,
194 sizeof(*other_cmds->names), cmdname_compare);
195 uniq(other_cmds);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]196 }
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]197 exclude_cmds(other_cmds, main_cmds);
Jeff King21564352008-02-24 22:17:37[diff] [blame]198}
199
Junio C Hamanof4ed0af2012-05-03 22:13:31[diff] [blame]200void list_commands(unsigned int colopts,
Nguyễn Thái Ngọc Duydbfae682012-04-13 10:54:37[diff] [blame]201 struct cmdnames *main_cmds, struct cmdnames *other_cmds)
Jeff King21564352008-02-24 22:17:37[diff] [blame]202{
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]203 if (main_cmds->cnt) {
Alex Riesen61c5d432008-08-28 17:19:42[diff] [blame]204 const char *exec_path = git_exec_path();
Nguyễn Thái Ngọc Duy4470ef92012-04-25 11:21:53[diff] [blame]205 printf_ln(_("available git commands in '%s'"), exec_path);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]206 putchar('\n');
Ralf Thielowd10cb3d2014-02-28 19:27:29[diff] [blame]207 pretty_print_cmdnames(main_cmds, colopts);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]208 putchar('\n');
209 }
210
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]211 if (other_cmds->cnt) {
Nguyễn Thái Ngọc Duy4470ef92012-04-25 11:21:53[diff] [blame]212 printf_ln(_("git commands available from elsewhere on your $PATH"));
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]213 putchar('\n');
Ralf Thielowd10cb3d2014-02-28 19:27:29[diff] [blame]214 pretty_print_cmdnames(other_cmds, colopts);
Scott R Parish1eb05692007-10-29 03:30:52[diff] [blame]215 putchar('\n');
216 }
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]217}
218
Sébastien Guimmara22414772015-05-21 17:39:22[diff] [blame]219static int cmd_group_cmp(const void *elem1, const void *elem2)
220{
221 const struct cmdname_help *e1 = elem1;
222 const struct cmdname_help *e2 = elem2;
223
224 if (e1->group < e2->group)
225 return -1;
226 if (e1->group > e2->group)
227 return 1;
228 return strcmp(e1->name, e2->name);
229}
230
Junio C Hamano1542d4c2013-01-19 06:35:04[diff] [blame]231void list_common_cmds_help(void)
232{
233 int i, longest = 0;
Sébastien Guimmara22414772015-05-21 17:39:22[diff] [blame]234 int current_grp = -1;
Junio C Hamano1542d4c2013-01-19 06:35:04[diff] [blame]235
236 for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
237 if (longest < strlen(common_cmds[i].name))
238 longest = strlen(common_cmds[i].name);
239 }
240
Sébastien Guimmara22414772015-05-21 17:39:22[diff] [blame]241 qsort(common_cmds, ARRAY_SIZE(common_cmds),
242 sizeof(common_cmds[0]), cmd_group_cmp);
243
244 puts(_("These are common Git commands used in various situations:"));
245
Junio C Hamano1542d4c2013-01-19 06:35:04[diff] [blame]246 for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
Sébastien Guimmara22414772015-05-21 17:39:22[diff] [blame]247 if (common_cmds[i].group != current_grp) {
248 printf("\n%s\n", _(common_cmd_groups[common_cmds[i].group]));
249 current_grp = common_cmds[i].group;
250 }
251
Junio C Hamano1542d4c2013-01-19 06:35:04[diff] [blame]252 printf(" %s ", common_cmds[i].name);
253 mput_char(' ', longest - strlen(common_cmds[i].name));
254 puts(_(common_cmds[i].help));
255 }
256}
257
Miklos Vajna940208a2008-07-29 23:16:58[diff] [blame]258int is_in_cmdlist(struct cmdnames *c, const char *s)
Jeff King21564352008-02-24 22:17:37[diff] [blame]259{
260 int i;
261 for (i = 0; i < c->cnt; i++)
262 if (!strcmp(s, c->names[i]->name))
263 return 1;
264 return 0;
265}
266
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]267static int autocorrect;
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]268static struct cmdnames aliases;
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]269
270static int git_unknown_cmd_config(const char *var, const char *value, void *cb)
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]271{
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]272 const char *p;
273
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]274 if (!strcmp(var, "help.autocorrect"))
275 autocorrect = git_config_int(var,value);
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]276 /* Also use aliases for command lookup */
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]277 if (skip_prefix(var, "alias.", &p))
278 add_cmdname(&aliases, p, strlen(p));
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]279
280 return git_default_config(var, value, cb);
281}
282
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]283static int levenshtein_compare(const void *p1, const void *p2)
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]284{
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]285 const struct cmdname *const *c1 = p1, *const *c2 = p2;
286 const char *s1 = (*c1)->name, *s2 = (*c2)->name;
287 int l1 = (*c1)->len;
288 int l2 = (*c2)->len;
289 return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
290}
291
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]292static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
293{
294 int i;
295 ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
296
297 for (i = 0; i < old->cnt; i++)
298 cmds->names[cmds->cnt++] = old->names[i];
299 free(old->names);
300 old->cnt = 0;
301 old->names = NULL;
302}
303
Johannes Sixt06500a02009-12-15 07:57:18[diff] [blame]304/* An empirically derived magic number */
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]305#define SIMILARITY_FLOOR 7
306#define SIMILAR_ENOUGH(x) ((x) < SIMILARITY_FLOOR)
Johannes Sixt06500a02009-12-15 07:57:18[diff] [blame]307
Michael Schubert823e0de2011-07-08 10:08:49[diff] [blame]308static const char bad_interpreter_advice[] =
309 N_("'%s' appears to be a git command, but we were not\n"
310 "able to execute it. Maybe git-%s is broken?");
311
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]312const char *help_unknown_cmd(const char *cmd)
313{
314 int i, n, best_similarity = 0;
315 struct cmdnames main_cmds, other_cmds;
316
317 memset(&main_cmds, 0, sizeof(main_cmds));
Johan Herland0b74f5d2009-08-11 10:10:21[diff] [blame]318 memset(&other_cmds, 0, sizeof(other_cmds));
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]319 memset(&aliases, 0, sizeof(aliases));
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]320
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]321 git_config(git_unknown_cmd_config, NULL);
322
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]323 load_command_list("git-", &main_cmds, &other_cmds);
324
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]325 add_cmd_list(&main_cmds, &aliases);
326 add_cmd_list(&main_cmds, &other_cmds);
327 qsort(main_cmds.names, main_cmds.cnt,
Stefan Bellerd333ac12014-09-17 12:14:39[diff] [blame]328 sizeof(*main_cmds.names), cmdname_compare);
Pieter de Bie746c2212008-09-10 15:54:28[diff] [blame]329 uniq(&main_cmds);
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]330
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]331 /* This abuses cmdname->len for levenshtein distance */
332 for (i = 0, n = 0; i < main_cmds.cnt; i++) {
333 int cmp = 0; /* avoid compiler stupidity */
334 const char *candidate = main_cmds.names[i]->name;
335
Michael Schubert823e0de2011-07-08 10:08:49[diff] [blame]336 /*
337 * An exact match means we have the command, but
338 * for some reason exec'ing it gave us ENOENT; probably
339 * it's a bad interpreter in the #! line.
340 */
341 if (!strcmp(candidate, cmd))
342 die(_(bad_interpreter_advice), cmd, cmd);
343
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]344 /* Does the candidate appear in common_cmds list? */
345 while (n < ARRAY_SIZE(common_cmds) &&
346 (cmp = strcmp(common_cmds[n].name, candidate)) < 0)
347 n++;
348 if ((n < ARRAY_SIZE(common_cmds)) && !cmp) {
349 /* Yes, this is one of the common commands */
350 n++; /* use the entry from common_cmds[] */
Christian Couder59556542013-11-30 20:55:40[diff] [blame]351 if (starts_with(candidate, cmd)) {
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]352 /* Give prefix match a very good score */
353 main_cmds.names[i]->len = 0;
354 continue;
355 }
356 }
357
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]358 main_cmds.names[i]->len =
Matthieu Moyc41494f2012-05-27 16:02:58[diff] [blame]359 levenshtein(cmd, candidate, 0, 2, 1, 3) + 1;
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]360 }
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]361
362 qsort(main_cmds.names, main_cmds.cnt,
363 sizeof(*main_cmds.names), levenshtein_compare);
364
365 if (!main_cmds.cnt)
Nguyễn Thái Ngọc Duy96656272012-04-23 12:30:24[diff] [blame]366 die(_("Uh oh. Your system reports no Git commands at all."));
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]367
Erik Faye-Lund6612b9e2010-11-26 16:00:39[diff] [blame]368 /* skip and count prefix matches */
369 for (n = 0; n < main_cmds.cnt && !main_cmds.names[n]->len; n++)
370 ; /* still counting */
371
372 if (main_cmds.cnt <= n) {
373 /* prefix matches with everything? that is too ambiguous */
374 best_similarity = SIMILARITY_FLOOR + 1;
375 } else {
376 /* count all the most similar ones */
377 for (best_similarity = main_cmds.names[n++]->len;
378 (n < main_cmds.cnt &&
379 best_similarity == main_cmds.names[n]->len);
380 n++)
381 ; /* still counting */
382 }
Johannes Sixt06500a02009-12-15 07:57:18[diff] [blame]383 if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) {
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]384 const char *assumed = main_cmds.names[0]->name;
385 main_cmds.names[0] = NULL;
386 clean_cmdnames(&main_cmds);
Nguyễn Thái Ngọc Duy96656272012-04-23 12:30:24[diff] [blame]387 fprintf_ln(stderr,
388 _("WARNING: You called a Git command named '%s', "
389 "which does not exist.\n"
390 "Continuing under the assumption that you meant '%s'"),
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]391 cmd, assumed);
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]392 if (autocorrect > 0) {
Nguyễn Thái Ngọc Duy96656272012-04-23 12:30:24[diff] [blame]393 fprintf_ln(stderr, _("in %0.1f seconds automatically..."),
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]394 (float)autocorrect/10.0);
Johannes Sixt2024d312015-06-05 19:45:05[diff] [blame]395 sleep_millisec(autocorrect * 100);
Alex Riesenf0e90712008-08-31 13:54:58[diff] [blame]396 }
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]397 return assumed;
398 }
399
Nguyễn Thái Ngọc Duy96656272012-04-23 12:30:24[diff] [blame]400 fprintf_ln(stderr, _("git: '%s' is not a git command. See 'git --help'."), cmd);
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]401
Johannes Sixt06500a02009-12-15 07:57:18[diff] [blame]402 if (SIMILAR_ENOUGH(best_similarity)) {
Nguyễn Thái Ngọc Duy96656272012-04-23 12:30:24[diff] [blame]403 fprintf_ln(stderr,
404 Q_("\nDid you mean this?",
405 "\nDid you mean one of these?",
406 n));
Johannes Schindelin8af84da2008-08-31 13:50:23[diff] [blame]407
408 for (i = 0; i < n; i++)
409 fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
410 }
411
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]412 exit(1);
413}
414
Linus Torvaldsa633fca2006-07-29 05:44:25[diff] [blame]415int cmd_version(int argc, const char **argv, const char *prefix)
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]416{
David Aguilarf2de0b92013-04-16 20:33:25[diff] [blame]417 /*
418 * The format of this string should be kept stable for compatibility
419 * with external projects that rely on the output of "git version".
420 */
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]421 printf("git version %s\n", git_version_string);
Jeff King6b9c38e2016-07-11 23:54:18[diff] [blame]422 while (*++argv) {
423 if (!strcmp(*argv, "--build-options")) {
424 printf("sizeof-long: %d\n", (int)sizeof(long));
425 /* NEEDSWORK: also save and output GIT-BUILD_OPTIONS? */
426 }
427 }
Linus Torvalds70827b12006-04-21 17:27:34[diff] [blame]428 return 0;
429}
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]430
431struct similar_ref_cb {
432 const char *base_ref;
433 struct string_list *similar_refs;
434};
435
Michael Haggerty91d6e942015-05-25 18:38:54[diff] [blame]436static int append_similar_ref(const char *refname, const struct object_id *oid,
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]437 int flags, void *cb_data)
438{
439 struct similar_ref_cb *cb = (struct similar_ref_cb *)(cb_data);
440 char *branch = strrchr(refname, '/') + 1;
Jeff King95b567c2014-06-18 19:48:29[diff] [blame]441 const char *remote;
442
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]443 /* A remote branch of the same name is deemed similar */
Jeff King95b567c2014-06-18 19:48:29[diff] [blame]444 if (skip_prefix(refname, "refs/remotes/", &remote) &&
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]445 !strcmp(branch, cb->base_ref))
Jeff King95b567c2014-06-18 19:48:29[diff] [blame]446 string_list_append(cb->similar_refs, remote);
Vikrant Varmae5618102013-05-04 00:04:19[diff] [blame]447 return 0;
448}
449
450static struct string_list guess_refs(const char *ref)
451{
452 struct similar_ref_cb ref_cb;
453 struct string_list similar_refs = STRING_LIST_INIT_NODUP;
454
455 ref_cb.base_ref = ref;
456 ref_cb.similar_refs = &similar_refs;
457 for_each_ref(append_similar_ref, &ref_cb);
458 return similar_refs;
459}
460
461void help_unknown_ref(const char *ref, const char *cmd, const char *error)
462{
463 int i;
464 struct string_list suggested_refs = guess_refs(ref);
465
466 fprintf_ln(stderr, _("%s: %s - %s"), cmd, ref, error);
467
468 if (suggested_refs.nr > 0) {
469 fprintf_ln(stderr,
470 Q_("\nDid you mean this?",
471 "\nDid you mean one of these?",
472 suggested_refs.nr));
473 for (i = 0; i < suggested_refs.nr; i++)
474 fprintf(stderr, "\t%s\n", suggested_refs.items[i].string);
475 }
476
477 string_list_clear(&suggested_refs, 0);
478 exit(1);
479}