[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 = (cmds->cnt + cols - 1) / 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 __MINGW32__
	/* 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;
}

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(main_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) {
		const char *assumed = main_cmds.names[0]->name;
		main_cmds.names[0] = NULL;
		clean_cmdnames(&main_cmds);
		fprintf(stderr, "WARNING: You called a Git program 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 (best_similarity < 6) {
		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;
1eb05690	103	rows = (cmds->cnt + cols - 1) / 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
	129	#ifdef __MINGW32__
	130	/* cannot trust the executable bit, peek into the file instead */
	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	}
	143	#endif
	144	return st.st_mode & S_IXUSR;
	145	}
	146
e321180e	147	static void list_commands_in_dir(struct cmdnames *cmds,
940208a7 MV	148	const char *path,
940208a7 MV	149	const char *prefix)
70827b15	150	{
940208a7	151	int prefix_len;
1eb05690	152	DIR *dir = opendir(path);
70827b15	153	struct dirent *de;
f5d600e2 JS	154	struct strbuf buf = STRBUF_INIT;
f5d600e2 JS	155	int len;
70827b15	156
f5d600e2	157	if (!dir)
e321180e	158	return;
940208a7 MV	159	if (!prefix)
	160	prefix = "git-";
	161	prefix_len = strlen(prefix);
70827b15	162
f5d600e2 JS	163	strbuf_addf(&buf, "%s/", path);
	164	len = buf.len;
	165
70827b15	166	while ((de = readdir(dir)) != NULL) {
70827b15 LT	167	int entlen;
70827b15 LT	168
edb6ddc5	169	if (prefixcmp(de->d_name, prefix))
70827b15	170	continue;
0966003c	171
f5d600e2 JS	172	strbuf_setlen(&buf, len);
	173	strbuf_addstr(&buf, de->d_name);
	174	if (!is_executable(buf.buf))
70827b15 LT	175	continue;
70827b15 LT	176
edb6ddc5	177	entlen = strlen(de->d_name) - prefix_len;
5bb1cda5	178	if (has_extension(de->d_name, ".exe"))
70827b15 LT	179	entlen -= 4;
70827b15 LT	180
1eb05690	181	add_cmdname(cmds, de->d_name + prefix_len, entlen);
70827b15 LT	182	}
70827b15 LT	183	closedir(dir);
f5d600e2	184	strbuf_release(&buf);
1eb05690 SP	185	}
1eb05690 SP	186
e321180e	187	void load_command_list(const char *prefix,
940208a7 MV	188	struct cmdnames *main_cmds,
940208a7 MV	189	struct cmdnames *other_cmds)
1eb05690	190	{
1eb05690	191	const char *env_path = getenv("PATH");
1eb05690 SP	192	const char *exec_path = git_exec_path();
1eb05690 SP	193
1f08e5ce	194	if (exec_path) {
e321180e	195	list_commands_in_dir(main_cmds, exec_path, prefix);
1f08e5ce AR	196	qsort(main_cmds->names, main_cmds->cnt,
	197	sizeof(*main_cmds->names), cmdname_compare);
	198	uniq(main_cmds);
1eb05690 SP	199	}
1eb05690 SP	200
1f08e5ce AR	201	if (env_path) {
	202	char paths, path, *colon;
	203	path = paths = xstrdup(env_path);
	204	while (1) {
	205	if ((colon = strchr(path, PATH_SEP)))
	206	*colon = 0;
746c221a PB	207	if (!exec_path \|\| strcmp(path, exec_path))
746c221a PB	208	list_commands_in_dir(other_cmds, path, prefix);
1eb05690	209
1f08e5ce AR	210	if (!colon)
	211	break;
	212	path = colon + 1;
	213	}
	214	free(paths);
1eb05690	215
1f08e5ce AR	216	qsort(other_cmds->names, other_cmds->cnt,
	217	sizeof(*other_cmds->names), cmdname_compare);
	218	uniq(other_cmds);
	219	}
940208a7	220	exclude_cmds(other_cmds, main_cmds);
2156435f JK	221	}
2156435f JK	222
e321180e AR	223	void list_commands(const char title, struct cmdnames main_cmds,
e321180e AR	224	struct cmdnames *other_cmds)
2156435f	225	{
e321180e AR	226	int i, longest = 0;
	227
	228	for (i = 0; i < main_cmds->cnt; i++)
	229	if (longest < main_cmds->names[i]->len)
	230	longest = main_cmds->names[i]->len;
	231	for (i = 0; i < other_cmds->cnt; i++)
	232	if (longest < other_cmds->names[i]->len)
	233	longest = other_cmds->names[i]->len;
2156435f	234
940208a7	235	if (main_cmds->cnt) {
61c5d431	236	const char *exec_path = git_exec_path();
940208a7 MV	237	printf("available %s in '%s'\n", title, exec_path);
	238	printf("----------------");
	239	mput_char('-', strlen(title) + strlen(exec_path));
1eb05690	240	putchar('\n');
940208a7	241	pretty_print_string_list(main_cmds, longest);
1eb05690 SP	242	putchar('\n');
	243	}
	244
940208a7 MV	245	if (other_cmds->cnt) {
	246	printf("%s available from elsewhere on your $PATH\n", title);
	247	printf("---------------------------------------");
	248	mput_char('-', strlen(title));
	249	putchar('\n');
	250	pretty_print_string_list(other_cmds, longest);
1eb05690 SP	251	putchar('\n');
1eb05690 SP	252	}
70827b15 LT	253	}
70827b15 LT	254
940208a7	255	int is_in_cmdlist(struct cmdnames c, const char s)
2156435f JK	256	{
	257	int i;
	258	for (i = 0; i < c->cnt; i++)
	259	if (!strcmp(s, c->names[i]->name))
	260	return 1;
	261	return 0;
	262	}
	263
f0e90716	264	static int autocorrect;
746c221a	265	static struct cmdnames aliases;
f0e90716 AR	266
	267	static int git_unknown_cmd_config(const char var, const char value, void *cb)
	268	{
	269	if (!strcmp(var, "help.autocorrect"))
	270	autocorrect = git_config_int(var,value);
746c221a PB	271	/* Also use aliases for command lookup */
	272	if (!prefixcmp(var, "alias."))
	273	add_cmdname(&aliases, var + 6, strlen(var + 6));
f0e90716 AR	274
	275	return git_default_config(var, value, cb);
	276	}
	277
8af84dad	278	static int levenshtein_compare(const void p1, const void p2)
822a7d50	279	{
8af84dad JS	280	const struct cmdname const c1 = p1, const c2 = p2;
	281	const char s1 = (c1)->name, s2 = (c2)->name;
	282	int l1 = (*c1)->len;
	283	int l2 = (*c2)->len;
	284	return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
	285	}
	286
746c221a PB	287	static void add_cmd_list(struct cmdnames cmds, struct cmdnames old)
	288	{
	289	int i;
	290	ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
	291
	292	for (i = 0; i < old->cnt; i++)
	293	cmds->names[cmds->cnt++] = old->names[i];
	294	free(old->names);
	295	old->cnt = 0;
	296	old->names = NULL;
	297	}
	298
8af84dad	299	const char help_unknown_cmd(const char cmd)
822a7d50	300	{
8af84dad JS	301	int i, n, best_similarity = 0;
	302	struct cmdnames main_cmds, other_cmds;
	303
	304	memset(&main_cmds, 0, sizeof(main_cmds));
	305	memset(&other_cmds, 0, sizeof(main_cmds));
746c221a	306	memset(&aliases, 0, sizeof(aliases));
8af84dad	307
f0e90716 AR	308	git_config(git_unknown_cmd_config, NULL);
f0e90716 AR	309
8af84dad JS	310	load_command_list("git-", &main_cmds, &other_cmds);
8af84dad JS	311
746c221a PB	312	add_cmd_list(&main_cmds, &aliases);
	313	add_cmd_list(&main_cmds, &other_cmds);
	314	qsort(main_cmds.names, main_cmds.cnt,
	315	sizeof(main_cmds.names), cmdname_compare);
	316	uniq(&main_cmds);
8af84dad JS	317
	318	/* This reuses cmdname->len for similarity index */
	319	for (i = 0; i < main_cmds.cnt; ++i)
	320	main_cmds.names[i]->len =
	321	levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
	322
	323	qsort(main_cmds.names, main_cmds.cnt,
	324	sizeof(*main_cmds.names), levenshtein_compare);
	325
	326	if (!main_cmds.cnt)
	327	die ("Uh oh. Your system reports no Git commands at all.");
	328
	329	best_similarity = main_cmds.names[0]->len;
	330	n = 1;
	331	while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
	332	++n;
f0e90716	333	if (autocorrect && n == 1) {
8af84dad JS	334	const char *assumed = main_cmds.names[0]->name;
	335	main_cmds.names[0] = NULL;
	336	clean_cmdnames(&main_cmds);
	337	fprintf(stderr, "WARNING: You called a Git program named '%s', "
	338	"which does not exist.\n"
	339	"Continuing under the assumption that you meant '%s'\n",
	340	cmd, assumed);
f0e90716 AR	341	if (autocorrect > 0) {
	342	fprintf(stderr, "in %0.1f seconds automatically...\n",
	343	(float)autocorrect/10.0);
	344	poll(NULL, 0, autocorrect * 100);
	345	}
8af84dad JS	346	return assumed;
	347	}
	348
a238917b	349	fprintf(stderr, "git: '%s' is not a git-command. See 'git --help'.\n", cmd);
8af84dad JS	350
	351	if (best_similarity < 6) {
	352	fprintf(stderr, "\nDid you mean %s?\n",
	353	n < 2 ? "this": "one of these");
	354
	355	for (i = 0; i < n; i++)
	356	fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
	357	}
	358
822a7d50 RJ	359	exit(1);
	360	}
	361
a633fca0	362	int cmd_version(int argc, const char *argv, const char prefix)
70827b15 LT	363	{
	364	printf("git version %s\n", git_version_string);
	365	return 0;
	366	}