[thirdparty/git.git] / help.c

#include "cache.h"
#include "builtin.h"
#include "exec_cmd.h"
#include "levenshtein.h"
#include "help.h"

/* most GUI terminals set COLUMNS (although some don't export it) */
static int term_columns(void)
{
	char *col_string = getenv("COLUMNS");
	int n_cols;

	if (col_string && (n_cols = atoi(col_string)) > 0)
		return n_cols;

#ifdef TIOCGWINSZ
	{
		struct winsize ws;
		if (!ioctl(1, TIOCGWINSZ, &ws)) {
			if (ws.ws_col)
				return ws.ws_col;
		}
	}
#endif

	return 80;
}

void add_cmdname(struct cmdnames *cmds, const char *name, int len)
{
	struct cmdname *ent = xmalloc(sizeof(*ent) + len + 1);

	ent->len = len;
	memcpy(ent->name, name, len);
	ent->name[len] = 0;

	ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc);
	cmds->names[cmds->cnt++] = ent;
}

static void clean_cmdnames(struct cmdnames *cmds)
{
	int i;
	for (i = 0; i < cmds->cnt; ++i)
		free(cmds->names[i]);
	free(cmds->names);
	cmds->cnt = 0;
	cmds->alloc = 0;
}

static int cmdname_compare(const void *a_, const void *b_)
{
	struct cmdname *a = *(struct cmdname **)a_;
	struct cmdname *b = *(struct cmdname **)b_;
	return strcmp(a->name, b->name);
}

static void uniq(struct cmdnames *cmds)
{
	int i, j;

	if (!cmds->cnt)
		return;

	for (i = j = 1; i < cmds->cnt; i++)
		if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
			cmds->names[j++] = cmds->names[i];

	cmds->cnt = j;
}

void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
{
	int ci, cj, ei;
	int cmp;

	ci = cj = ei = 0;
	while (ci < cmds->cnt && ei < excludes->cnt) {
		cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name);
		if (cmp < 0)
			cmds->names[cj++] = cmds->names[ci++];
		else if (cmp == 0)
			ci++, ei++;
		else if (cmp > 0)
			ei++;
	}

	while (ci < cmds->cnt)
		cmds->names[cj++] = cmds->names[ci++];

	cmds->cnt = cj;
}

static void pretty_print_string_list(struct cmdnames *cmds, int longest)
{
	int cols = 1, rows;
	int space = longest + 1; /* min 1 SP between words */
	int max_cols = term_columns() - 1; /* don't print *on* the edge */
	int i, j;

	if (space < max_cols)
		cols = max_cols / space;
	rows = DIV_ROUND_UP(cmds->cnt, cols);

	for (i = 0; i < rows; i++) {
		printf("  ");

		for (j = 0; j < cols; j++) {
			int n = j * rows + i;
			int size = space;
			if (n >= cmds->cnt)
				break;
			if (j == cols-1 || n + rows >= cmds->cnt)
				size = 1;
			printf("%-*s", size, cmds->names[n]->name);
		}
		putchar('\n');
	}
}

static int is_executable(const char *name)
{
	struct stat st;

	if (stat(name, &st) || /* stat, not lstat */
	    !S_ISREG(st.st_mode))
		return 0;

#ifdef WIN32
{	/* cannot trust the executable bit, peek into the file instead */
	char buf[3] = { 0 };
	int n;
	int fd = open(name, O_RDONLY);
	st.st_mode &= ~S_IXUSR;
	if (fd >= 0) {
		n = read(fd, buf, 2);
		if (n == 2)
			/* DOS executables start with "MZ" */
			if (!strcmp(buf, "#!") || !strcmp(buf, "MZ"))
				st.st_mode |= S_IXUSR;
		close(fd);
	}
}
#endif
	return st.st_mode & S_IXUSR;
}

static void list_commands_in_dir(struct cmdnames *cmds,
					 const char *path,
					 const char *prefix)
{
	int prefix_len;
	DIR *dir = opendir(path);
	struct dirent *de;
	struct strbuf buf = STRBUF_INIT;
	int len;

	if (!dir)
		return;
	if (!prefix)
		prefix = "git-";
	prefix_len = strlen(prefix);

	strbuf_addf(&buf, "%s/", path);
	len = buf.len;

	while ((de = readdir(dir)) != NULL) {
		int entlen;

		if (prefixcmp(de->d_name, prefix))
			continue;

		strbuf_setlen(&buf, len);
		strbuf_addstr(&buf, de->d_name);
		if (!is_executable(buf.buf))
			continue;

		entlen = strlen(de->d_name) - prefix_len;
		if (has_extension(de->d_name, ".exe"))
			entlen -= 4;

		add_cmdname(cmds, de->d_name + prefix_len, entlen);
	}
	closedir(dir);
	strbuf_release(&buf);
}

void load_command_list(const char *prefix,
		struct cmdnames *main_cmds,
		struct cmdnames *other_cmds)
{
	const char *env_path = getenv("PATH");
	const char *exec_path = git_exec_path();

	if (exec_path) {
		list_commands_in_dir(main_cmds, exec_path, prefix);
		qsort(main_cmds->names, main_cmds->cnt,
		      sizeof(*main_cmds->names), cmdname_compare);
		uniq(main_cmds);
	}

	if (env_path) {
		char *paths, *path, *colon;
		path = paths = xstrdup(env_path);
		while (1) {
			if ((colon = strchr(path, PATH_SEP)))
				*colon = 0;
			if (!exec_path || strcmp(path, exec_path))
				list_commands_in_dir(other_cmds, path, prefix);

			if (!colon)
				break;
			path = colon + 1;
		}
		free(paths);

		qsort(other_cmds->names, other_cmds->cnt,
		      sizeof(*other_cmds->names), cmdname_compare);
		uniq(other_cmds);
	}
	exclude_cmds(other_cmds, main_cmds);
}

void list_commands(const char *title, struct cmdnames *main_cmds,
		   struct cmdnames *other_cmds)
{
	int i, longest = 0;

	for (i = 0; i < main_cmds->cnt; i++)
		if (longest < main_cmds->names[i]->len)
			longest = main_cmds->names[i]->len;
	for (i = 0; i < other_cmds->cnt; i++)
		if (longest < other_cmds->names[i]->len)
			longest = other_cmds->names[i]->len;

	if (main_cmds->cnt) {
		const char *exec_path = git_exec_path();
		printf("available %s in '%s'\n", title, exec_path);
		printf("----------------");
		mput_char('-', strlen(title) + strlen(exec_path));
		putchar('\n');
		pretty_print_string_list(main_cmds, longest);
		putchar('\n');
	}

	if (other_cmds->cnt) {
		printf("%s available from elsewhere on your $PATH\n", title);
		printf("---------------------------------------");
		mput_char('-', strlen(title));
		putchar('\n');
		pretty_print_string_list(other_cmds, longest);
		putchar('\n');
	}
}

int is_in_cmdlist(struct cmdnames *c, const char *s)
{
	int i;
	for (i = 0; i < c->cnt; i++)
		if (!strcmp(s, c->names[i]->name))
			return 1;
	return 0;
}

static int autocorrect;
static struct cmdnames aliases;

static int git_unknown_cmd_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, "help.autocorrect"))
		autocorrect = git_config_int(var,value);
	/* Also use aliases for command lookup */
	if (!prefixcmp(var, "alias."))
		add_cmdname(&aliases, var + 6, strlen(var + 6));

	return git_default_config(var, value, cb);
}

static int levenshtein_compare(const void *p1, const void *p2)
{
	const struct cmdname *const *c1 = p1, *const *c2 = p2;
	const char *s1 = (*c1)->name, *s2 = (*c2)->name;
	int l1 = (*c1)->len;
	int l2 = (*c2)->len;
	return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
}

static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
{
	int i;
	ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);

	for (i = 0; i < old->cnt; i++)
		cmds->names[cmds->cnt++] = old->names[i];
	free(old->names);
	old->cnt = 0;
	old->names = NULL;
}

/* An empirically derived magic number */
#define SIMILAR_ENOUGH(x) ((x) < 6)

const char *help_unknown_cmd(const char *cmd)
{
	int i, n, best_similarity = 0;
	struct cmdnames main_cmds, other_cmds;

	memset(&main_cmds, 0, sizeof(main_cmds));
	memset(&other_cmds, 0, sizeof(other_cmds));
	memset(&aliases, 0, sizeof(aliases));

	git_config(git_unknown_cmd_config, NULL);

	load_command_list("git-", &main_cmds, &other_cmds);

	add_cmd_list(&main_cmds, &aliases);
	add_cmd_list(&main_cmds, &other_cmds);
	qsort(main_cmds.names, main_cmds.cnt,
	      sizeof(main_cmds.names), cmdname_compare);
	uniq(&main_cmds);

	/* This reuses cmdname->len for similarity index */
	for (i = 0; i < main_cmds.cnt; ++i)
		main_cmds.names[i]->len =
			levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);

	qsort(main_cmds.names, main_cmds.cnt,
	      sizeof(*main_cmds.names), levenshtein_compare);

	if (!main_cmds.cnt)
		die ("Uh oh. Your system reports no Git commands at all.");

	best_similarity = main_cmds.names[0]->len;
	n = 1;
	while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
		++n;
	if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) {
		const char *assumed = main_cmds.names[0]->name;
		main_cmds.names[0] = NULL;
		clean_cmdnames(&main_cmds);
		fprintf(stderr, "WARNING: You called a Git command named '%s', "
			"which does not exist.\n"
			"Continuing under the assumption that you meant '%s'\n",
			cmd, assumed);
		if (autocorrect > 0) {
			fprintf(stderr, "in %0.1f seconds automatically...\n",
				(float)autocorrect/10.0);
			poll(NULL, 0, autocorrect * 100);
		}
		return assumed;
	}

	fprintf(stderr, "git: '%s' is not a git command. See 'git --help'.\n", cmd);

	if (SIMILAR_ENOUGH(best_similarity)) {
		fprintf(stderr, "\nDid you mean %s?\n",
			n < 2 ? "this": "one of these");

		for (i = 0; i < n; i++)
			fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
	}

	exit(1);
}

int cmd_version(int argc, const char **argv, const char *prefix)
{
	printf("git version %s\n", git_version_string);
	return 0;
}
Commit	Line	Data
70827b15 LT	1	#include "cache.h"
	2	#include "builtin.h"
	3	#include "exec_cmd.h"
8af84dad	4	#include "levenshtein.h"
940208a7	5	#include "help.h"
64949984	6
82e5a82f	7	/* most GUI terminals set COLUMNS (although some don't export it) */
70827b15 LT	8	static int term_columns(void)
	9	{
	10	char *col_string = getenv("COLUMNS");
96f1e58f	11	int n_cols;
70827b15 LT	12
	13	if (col_string && (n_cols = atoi(col_string)) > 0)
	14	return n_cols;
	15
	16	#ifdef TIOCGWINSZ
	17	{
	18	struct winsize ws;
	19	if (!ioctl(1, TIOCGWINSZ, &ws)) {
	20	if (ws.ws_col)
	21	return ws.ws_col;
	22	}
	23	}
	24	#endif
	25
	26	return 80;
	27	}
	28
940208a7	29	void add_cmdname(struct cmdnames cmds, const char name, int len)
70827b15	30	{
940208a7	31	struct cmdname ent = xmalloc(sizeof(ent) + len + 1);
1eb05690	32
70827b15 LT	33	ent->len = len;
	34	memcpy(ent->name, name, len);
	35	ent->name[len] = 0;
1eb05690 SP	36
	37	ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc);
	38	cmds->names[cmds->cnt++] = ent;
70827b15 LT	39	}
70827b15 LT	40
8af84dad JS	41	static void clean_cmdnames(struct cmdnames *cmds)
	42	{
	43	int i;
	44	for (i = 0; i < cmds->cnt; ++i)
	45	free(cmds->names[i]);
	46	free(cmds->names);
	47	cmds->cnt = 0;
	48	cmds->alloc = 0;
	49	}
	50
70827b15 LT	51	static int cmdname_compare(const void a_, const void b_)
	52	{
	53	struct cmdname a = (struct cmdname **)a_;
	54	struct cmdname b = (struct cmdname **)b_;
	55	return strcmp(a->name, b->name);
	56	}
	57
1eb05690 SP	58	static void uniq(struct cmdnames *cmds)
	59	{
	60	int i, j;
	61
	62	if (!cmds->cnt)
	63	return;
	64
	65	for (i = j = 1; i < cmds->cnt; i++)
	66	if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
	67	cmds->names[j++] = cmds->names[i];
	68
	69	cmds->cnt = j;
	70	}
	71
940208a7	72	void exclude_cmds(struct cmdnames cmds, struct cmdnames excludes)
f3fa1838	73	{
1eb05690 SP	74	int ci, cj, ei;
	75	int cmp;
	76
	77	ci = cj = ei = 0;
	78	while (ci < cmds->cnt && ei < excludes->cnt) {
	79	cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name);
	80	if (cmp < 0)
	81	cmds->names[cj++] = cmds->names[ci++];
	82	else if (cmp == 0)
	83	ci++, ei++;
	84	else if (cmp > 0)
	85	ei++;
	86	}
	87
	88	while (ci < cmds->cnt)
	89	cmds->names[cj++] = cmds->names[ci++];
	90
	91	cmds->cnt = cj;
	92	}
	93
	94	static void pretty_print_string_list(struct cmdnames *cmds, int longest)
70827b15 LT	95	{
	96	int cols = 1, rows;
	97	int space = longest + 1; /* min 1 SP between words */
	98	int max_cols = term_columns() - 1; /* don't print on the edge */
	99	int i, j;
	100
	101	if (space < max_cols)
	102	cols = max_cols / space;
98cb6f30	103	rows = DIV_ROUND_UP(cmds->cnt, cols);
70827b15 LT	104
	105	for (i = 0; i < rows; i++) {
	106	printf(" ");
	107
	108	for (j = 0; j < cols; j++) {
	109	int n = j * rows + i;
	110	int size = space;
1eb05690	111	if (n >= cmds->cnt)
70827b15	112	break;
1eb05690	113	if (j == cols-1 \|\| n + rows >= cmds->cnt)
70827b15	114	size = 1;
1eb05690	115	printf("%-*s", size, cmds->names[n]->name);
70827b15 LT	116	}
	117	putchar('\n');
	118	}
	119	}
	120
cc3b7a97 JS	121	static int is_executable(const char *name)
	122	{
	123	struct stat st;
	124
	125	if (stat(name, &st) \|\| /* stat, not lstat */
	126	!S_ISREG(st.st_mode))
	127	return 0;
	128
71064e3f	129	#ifdef WIN32
0d30ad71	130	{ /* cannot trust the executable bit, peek into the file instead */
cc3b7a97 JS	131	char buf[3] = { 0 };
	132	int n;
	133	int fd = open(name, O_RDONLY);
	134	st.st_mode &= ~S_IXUSR;
	135	if (fd >= 0) {
	136	n = read(fd, buf, 2);
	137	if (n == 2)
	138	/* DOS executables start with "MZ" */
	139	if (!strcmp(buf, "#!") \|\| !strcmp(buf, "MZ"))
	140	st.st_mode \|= S_IXUSR;
	141	close(fd);
	142	}
0d30ad71	143	}
cc3b7a97 JS	144	#endif
	145	return st.st_mode & S_IXUSR;
	146	}
	147
e321180e	148	static void list_commands_in_dir(struct cmdnames *cmds,
940208a7 MV	149	const char *path,
940208a7 MV	150	const char *prefix)
70827b15	151	{
940208a7	152	int prefix_len;
1eb05690	153	DIR *dir = opendir(path);
70827b15	154	struct dirent *de;
f5d600e2 JS	155	struct strbuf buf = STRBUF_INIT;
f5d600e2 JS	156	int len;
70827b15	157
f5d600e2	158	if (!dir)
e321180e	159	return;
940208a7 MV	160	if (!prefix)
	161	prefix = "git-";
	162	prefix_len = strlen(prefix);
70827b15	163
f5d600e2 JS	164	strbuf_addf(&buf, "%s/", path);
	165	len = buf.len;
	166
70827b15	167	while ((de = readdir(dir)) != NULL) {
70827b15 LT	168	int entlen;
70827b15 LT	169
edb6ddc5	170	if (prefixcmp(de->d_name, prefix))
70827b15	171	continue;
0966003c	172
f5d600e2 JS	173	strbuf_setlen(&buf, len);
	174	strbuf_addstr(&buf, de->d_name);
	175	if (!is_executable(buf.buf))
70827b15 LT	176	continue;
70827b15 LT	177
edb6ddc5	178	entlen = strlen(de->d_name) - prefix_len;
5bb1cda5	179	if (has_extension(de->d_name, ".exe"))
70827b15 LT	180	entlen -= 4;
70827b15 LT	181
1eb05690	182	add_cmdname(cmds, de->d_name + prefix_len, entlen);
70827b15 LT	183	}
70827b15 LT	184	closedir(dir);
f5d600e2	185	strbuf_release(&buf);
1eb05690 SP	186	}
1eb05690 SP	187
e321180e	188	void load_command_list(const char *prefix,
940208a7 MV	189	struct cmdnames *main_cmds,
940208a7 MV	190	struct cmdnames *other_cmds)
1eb05690	191	{
1eb05690	192	const char *env_path = getenv("PATH");
1eb05690 SP	193	const char *exec_path = git_exec_path();
1eb05690 SP	194
1f08e5ce	195	if (exec_path) {
e321180e	196	list_commands_in_dir(main_cmds, exec_path, prefix);
1f08e5ce AR	197	qsort(main_cmds->names, main_cmds->cnt,
	198	sizeof(*main_cmds->names), cmdname_compare);
	199	uniq(main_cmds);
1eb05690 SP	200	}
1eb05690 SP	201
1f08e5ce AR	202	if (env_path) {
	203	char paths, path, *colon;
	204	path = paths = xstrdup(env_path);
	205	while (1) {
	206	if ((colon = strchr(path, PATH_SEP)))
	207	*colon = 0;
746c221a PB	208	if (!exec_path \|\| strcmp(path, exec_path))
746c221a PB	209	list_commands_in_dir(other_cmds, path, prefix);
1eb05690	210
1f08e5ce AR	211	if (!colon)
	212	break;
	213	path = colon + 1;
	214	}
	215	free(paths);
1eb05690	216
1f08e5ce AR	217	qsort(other_cmds->names, other_cmds->cnt,
	218	sizeof(*other_cmds->names), cmdname_compare);
	219	uniq(other_cmds);
	220	}
940208a7	221	exclude_cmds(other_cmds, main_cmds);
2156435f JK	222	}
2156435f JK	223
e321180e AR	224	void list_commands(const char title, struct cmdnames main_cmds,
e321180e AR	225	struct cmdnames *other_cmds)
2156435f	226	{
e321180e AR	227	int i, longest = 0;
	228
	229	for (i = 0; i < main_cmds->cnt; i++)
	230	if (longest < main_cmds->names[i]->len)
	231	longest = main_cmds->names[i]->len;
	232	for (i = 0; i < other_cmds->cnt; i++)
	233	if (longest < other_cmds->names[i]->len)
	234	longest = other_cmds->names[i]->len;
2156435f	235
940208a7	236	if (main_cmds->cnt) {
61c5d431	237	const char *exec_path = git_exec_path();
940208a7 MV	238	printf("available %s in '%s'\n", title, exec_path);
	239	printf("----------------");
	240	mput_char('-', strlen(title) + strlen(exec_path));
1eb05690	241	putchar('\n');
940208a7	242	pretty_print_string_list(main_cmds, longest);
1eb05690 SP	243	putchar('\n');
	244	}
	245
940208a7 MV	246	if (other_cmds->cnt) {
	247	printf("%s available from elsewhere on your $PATH\n", title);
	248	printf("---------------------------------------");
	249	mput_char('-', strlen(title));
	250	putchar('\n');
	251	pretty_print_string_list(other_cmds, longest);
1eb05690 SP	252	putchar('\n');
1eb05690 SP	253	}
70827b15 LT	254	}
70827b15 LT	255
940208a7	256	int is_in_cmdlist(struct cmdnames c, const char s)
2156435f JK	257	{
	258	int i;
	259	for (i = 0; i < c->cnt; i++)
	260	if (!strcmp(s, c->names[i]->name))
	261	return 1;
	262	return 0;
	263	}
	264
f0e90716	265	static int autocorrect;
746c221a	266	static struct cmdnames aliases;
f0e90716 AR	267
	268	static int git_unknown_cmd_config(const char var, const char value, void *cb)
	269	{
	270	if (!strcmp(var, "help.autocorrect"))
	271	autocorrect = git_config_int(var,value);
746c221a PB	272	/* Also use aliases for command lookup */
	273	if (!prefixcmp(var, "alias."))
	274	add_cmdname(&aliases, var + 6, strlen(var + 6));
f0e90716 AR	275
	276	return git_default_config(var, value, cb);
	277	}
	278
8af84dad	279	static int levenshtein_compare(const void p1, const void p2)
822a7d50	280	{
8af84dad JS	281	const struct cmdname const c1 = p1, const c2 = p2;
	282	const char s1 = (c1)->name, s2 = (c2)->name;
	283	int l1 = (*c1)->len;
	284	int l2 = (*c2)->len;
	285	return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
	286	}
	287
746c221a PB	288	static void add_cmd_list(struct cmdnames cmds, struct cmdnames old)
	289	{
	290	int i;
	291	ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
	292
	293	for (i = 0; i < old->cnt; i++)
	294	cmds->names[cmds->cnt++] = old->names[i];
	295	free(old->names);
	296	old->cnt = 0;
	297	old->names = NULL;
	298	}
	299
06500a02 JS	300	/* An empirically derived magic number */
	301	#define SIMILAR_ENOUGH(x) ((x) < 6)
	302
8af84dad	303	const char help_unknown_cmd(const char cmd)
822a7d50	304	{
8af84dad JS	305	int i, n, best_similarity = 0;
	306	struct cmdnames main_cmds, other_cmds;
	307
	308	memset(&main_cmds, 0, sizeof(main_cmds));
0b74f5dc	309	memset(&other_cmds, 0, sizeof(other_cmds));
746c221a	310	memset(&aliases, 0, sizeof(aliases));
8af84dad	311
f0e90716 AR	312	git_config(git_unknown_cmd_config, NULL);
f0e90716 AR	313
8af84dad JS	314	load_command_list("git-", &main_cmds, &other_cmds);
8af84dad JS	315
746c221a PB	316	add_cmd_list(&main_cmds, &aliases);
	317	add_cmd_list(&main_cmds, &other_cmds);
	318	qsort(main_cmds.names, main_cmds.cnt,
	319	sizeof(main_cmds.names), cmdname_compare);
	320	uniq(&main_cmds);
8af84dad JS	321
	322	/* This reuses cmdname->len for similarity index */
	323	for (i = 0; i < main_cmds.cnt; ++i)
	324	main_cmds.names[i]->len =
	325	levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
	326
	327	qsort(main_cmds.names, main_cmds.cnt,
	328	sizeof(*main_cmds.names), levenshtein_compare);
	329
	330	if (!main_cmds.cnt)
	331	die ("Uh oh. Your system reports no Git commands at all.");
	332
	333	best_similarity = main_cmds.names[0]->len;
	334	n = 1;
	335	while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
	336	++n;
06500a02	337	if (autocorrect && n == 1 && SIMILAR_ENOUGH(best_similarity)) {
8af84dad JS	338	const char *assumed = main_cmds.names[0]->name;
	339	main_cmds.names[0] = NULL;
	340	clean_cmdnames(&main_cmds);
57f6ec02	341	fprintf(stderr, "WARNING: You called a Git command named '%s', "
8af84dad JS	342	"which does not exist.\n"
	343	"Continuing under the assumption that you meant '%s'\n",
	344	cmd, assumed);
f0e90716 AR	345	if (autocorrect > 0) {
	346	fprintf(stderr, "in %0.1f seconds automatically...\n",
	347	(float)autocorrect/10.0);
	348	poll(NULL, 0, autocorrect * 100);
	349	}
8af84dad JS	350	return assumed;
	351	}
	352
7283bbc7	353	fprintf(stderr, "git: '%s' is not a git command. See 'git --help'.\n", cmd);
8af84dad	354
06500a02	355	if (SIMILAR_ENOUGH(best_similarity)) {
8af84dad JS	356	fprintf(stderr, "\nDid you mean %s?\n",
	357	n < 2 ? "this": "one of these");
	358
	359	for (i = 0; i < n; i++)
	360	fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
	361	}
	362
822a7d50 RJ	363	exit(1);
	364	}
	365
a633fca0	366	int cmd_version(int argc, const char *argv, const char prefix)
70827b15 LT	367	{
	368	printf("git version %s\n", git_version_string);
	369	return 0;
	370	}