[thirdparty/git.git] / update-cache.c

/*
 * GIT - The information manager from hell
 *
 * Copyright (C) Linus Torvalds, 2005
 */
#include "cache.h"

/*
 * Default to not allowing changes to the list of files. The
 * tool doesn't actually care, but this makes it harder to add
 * files to the revision control by mistake by doing something
 * like "git-update-cache *" and suddenly having all the object
 * files be revision controlled.
 */
static int allow_add = 0, allow_remove = 0, allow_replace = 0, not_new = 0, quiet = 0;
static int force_remove;

/* Three functions to allow overloaded pointer return; see linux/err.h */
static inline void *ERR_PTR(long error)
{
	return (void *) error;
}

static inline long PTR_ERR(const void *ptr)
{
	return (long) ptr;
}

static inline long IS_ERR(const void *ptr)
{
	return (unsigned long)ptr > (unsigned long)-1000L;
}

static int add_file_to_cache(char *path)
{
	int size, namelen, option, status;
	struct cache_entry *ce;
	struct stat st;
	int fd;
	char *target;

	status = lstat(path, &st);
	if (status < 0 || S_ISDIR(st.st_mode)) {
		/* When we used to have "path" and now we want to add
		 * "path/file", we need a way to remove "path" before
		 * being able to add "path/file".  However,
		 * "git-update-cache --remove path" would not work.
		 * --force-remove can be used but this is more user
		 * friendly, especially since we can do the opposite
		 * case just fine without --force-remove.
		 */
		if (status == 0 || (errno == ENOENT || errno == ENOTDIR)) {
			if (allow_remove)
				return remove_file_from_cache(path);
		}
		return error("open(\"%s\"): %s", path, strerror(errno));
	}
	namelen = strlen(path);
	size = cache_entry_size(namelen);
	ce = xmalloc(size);
	memset(ce, 0, size);
	memcpy(ce->name, path, namelen);
	fill_stat_cache_info(ce, &st);
	ce->ce_mode = create_ce_mode(st.st_mode);
	ce->ce_flags = htons(namelen);
	switch (st.st_mode & S_IFMT) {
	case S_IFREG:
		fd = open(path, O_RDONLY);
		if (fd < 0)
			return -1;
		if (index_fd(ce->sha1, fd, &st, 1, NULL) < 0)
			return -1;
		break;
	case S_IFLNK:
		target = xmalloc(st.st_size+1);
		if (readlink(path, target, st.st_size+1) != st.st_size) {
			free(target);
			return -1;
		}
		if (write_sha1_file(target, st.st_size, "blob", ce->sha1))
			return -1;
		free(target);
		break;
	default:
		return -1;
	}
	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	return add_cache_entry(ce, option);
}

static int match_data(int fd, void *buffer, unsigned long size)
{
	while (size) {
		char compare[1024];
		int ret = read(fd, compare, sizeof(compare));

		if (ret <= 0 || ret > size || memcmp(buffer, compare, ret))
			return -1;
		size -= ret;
		buffer += ret;
	}
	return 0;
}

static int compare_data(struct cache_entry *ce, unsigned long expected_size)
{
	int match = -1;
	int fd = open(ce->name, O_RDONLY);

	if (fd >= 0) {
		void *buffer;
		unsigned long size;
		char type[20];

		buffer = read_sha1_file(ce->sha1, type, &size);
		if (buffer) {
			if (size == expected_size && !strcmp(type, "blob"))
				match = match_data(fd, buffer, size);
			free(buffer);
		}
		close(fd);
	}
	return match;
}

static int compare_link(struct cache_entry *ce, unsigned long expected_size)
{
	int match = -1;
	char *target;
	void *buffer;
	unsigned long size;
	char type[10];
	int len;

	target = xmalloc(expected_size);
	len = readlink(ce->name, target, expected_size);
	if (len != expected_size) {
		free(target);
		return -1;
	}
	buffer = read_sha1_file(ce->sha1, type, &size);
	if (!buffer) {
		free(target);
		return -1;
	}
	if (size == expected_size)
		match = memcmp(buffer, target, size);
	free(buffer);
	free(target);
	return match;
}

/*
 * "refresh" does not calculate a new sha1 file or bring the
 * cache up-to-date for mode/content changes. But what it
 * _does_ do is to "re-match" the stat information of a file
 * with the cache, so that you can refresh the cache for a
 * file that hasn't been changed but where the stat entry is
 * out of date.
 *
 * For example, you'd want to do this after doing a "git-read-tree",
 * to link up the stat cache details with the proper files.
 */
static struct cache_entry *refresh_entry(struct cache_entry *ce)
{
	struct stat st;
	struct cache_entry *updated;
	int changed, size;

	if (lstat(ce->name, &st) < 0)
		return ERR_PTR(-errno);

	changed = ce_match_stat(ce, &st);
	if (!changed)
		return ce;

	/*
	 * If the mode or type has changed, there's no point in trying
	 * to refresh the entry - it's not going to match
	 */
	if (changed & (MODE_CHANGED | TYPE_CHANGED))
		return ERR_PTR(-EINVAL);

	switch (st.st_mode & S_IFMT) {
	case S_IFREG:
		if (compare_data(ce, st.st_size))
			return ERR_PTR(-EINVAL);
		break;
	case S_IFLNK:
		if (compare_link(ce, st.st_size))
			return ERR_PTR(-EINVAL);
		break;
	default:
		return ERR_PTR(-EINVAL);
	}

	size = ce_size(ce);
	updated = xmalloc(size);
	memcpy(updated, ce, size);
	fill_stat_cache_info(updated, &st);
	return updated;
}

static int refresh_cache(void)
{
	int i;
	int has_errors = 0;

	for (i = 0; i < active_nr; i++) {
		struct cache_entry *ce, *new;
		ce = active_cache[i];
		if (ce_stage(ce)) {
			printf("%s: needs merge\n", ce->name);
			has_errors = 1;
			while ((i < active_nr) &&
			       ! strcmp(active_cache[i]->name, ce->name))
				i++;
			i--;
			continue;
		}

		new = refresh_entry(ce);
		if (IS_ERR(new)) {
			if (not_new && PTR_ERR(new) == -ENOENT)
				continue;
			if (quiet)
				continue;
			printf("%s: needs update\n", ce->name);
			has_errors = 1;
			continue;
		}
		active_cache_changed = 1;
		/* You can NOT just free active_cache[i] here, since it
		 * might not be necessarily malloc()ed but can also come
		 * from mmap(). */
		active_cache[i] = new;
	}
	return has_errors;
}

/*
 * We fundamentally don't like some paths: we don't want
 * dot or dot-dot anywhere, and for obvious reasons don't
 * want to recurse into ".git" either.
 *
 * Also, we don't want double slashes or slashes at the
 * end that can make pathnames ambiguous.
 */
static int verify_dotfile(const char *rest)
{
	/*
	 * The first character was '.', but that
	 * has already been discarded, we now test
	 * the rest.
	 */
	switch (*rest) {
	/* "." is not allowed */
	case '\0': case '/':
		return 0;

	/*
	 * ".git" followed by  NUL or slash is bad. This
	 * shares the path end test with the ".." case.
	 */
	case 'g':
		if (rest[1] != 'i')
			break;
		if (rest[2] != 't')
			break;
		rest += 2;
	/* fallthrough */
	case '.':
		if (rest[1] == '\0' || rest[1] == '/')
			return 0;
	}
	return 1;
}

static int verify_path(char *path)
{
	char c;

	goto inside;
	for (;;) {
		if (!c)
			return 1;
		if (c == '/') {
inside:
			c = *path++;
			switch (c) {
			default:
				continue;
			case '/': case '\0':
				break;
			case '.':
				if (verify_dotfile(path))
					continue;
			}
			return 0;
		}
		c = *path++;
	}
}

static int add_cacheinfo(char *arg1, char *arg2, char *arg3)
{
	int size, len, option;
	unsigned int mode;
	unsigned char sha1[20];
	struct cache_entry *ce;

	if (sscanf(arg1, "%o", &mode) != 1)
		return -1;
	if (get_sha1_hex(arg2, sha1))
		return -1;
	if (!verify_path(arg3))
		return -1;

	len = strlen(arg3);
	size = cache_entry_size(len);
	ce = xmalloc(size);
	memset(ce, 0, size);

	memcpy(ce->sha1, sha1, 20);
	memcpy(ce->name, arg3, len);
	ce->ce_flags = htons(len);
	ce->ce_mode = create_ce_mode(mode);
	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	return add_cache_entry(ce, option);
}

static struct cache_file cache_file;

int main(int argc, char **argv)
{
	int i, newfd, entries, has_errors = 0;
	int allow_options = 1;

	newfd = hold_index_file_for_update(&cache_file, get_index_file());
	if (newfd < 0)
		die("unable to create new cachefile");

	entries = read_cache();
	if (entries < 0)
		die("cache corrupted");

	for (i = 1 ; i < argc; i++) {
		char *path = argv[i];

		if (allow_options && *path == '-') {
			if (!strcmp(path, "--")) {
				allow_options = 0;
				continue;
			}
			if (!strcmp(path, "-q")) {
				quiet = 1;
				continue;
			}
			if (!strcmp(path, "--add")) {
				allow_add = 1;
				continue;
			}
			if (!strcmp(path, "--replace")) {
				allow_replace = 1;
				continue;
			}
			if (!strcmp(path, "--remove")) {
				allow_remove = 1;
				continue;
			}
			if (!strcmp(path, "--refresh")) {
				has_errors |= refresh_cache();
				continue;
			}
			if (!strcmp(path, "--cacheinfo")) {
				if (i+3 >= argc)
					die("git-update-cache: --cacheinfo <mode> <sha1> <path>");
				if (add_cacheinfo(argv[i+1], argv[i+2], argv[i+3]))
					die("git-update-cache: --cacheinfo cannot add %s", argv[i+3]);
				i += 3;
				continue;
			}
			if (!strcmp(path, "--force-remove")) {
				force_remove = 1;
				continue;
			}

			if (!strcmp(path, "--ignore-missing")) {
				not_new = 1;
				continue;
			}
			die("unknown option %s", path);
		}
		if (!verify_path(path)) {
			fprintf(stderr, "Ignoring path %s\n", argv[i]);
			continue;
		}
		if (force_remove) {
			if (remove_file_from_cache(path))
				die("git-update-cache: --force-remove cannot remove %s", path);
			continue;
		}
		if (add_file_to_cache(path))
			die("Unable to add %s to database", path);
	}
	if (write_cache(newfd, active_cache, active_nr) ||
	    commit_index_file(&cache_file))
		die("Unable to write new cachefile");

	return has_errors ? 1 : 0;
}
Commit	Line	Data
8bc9a0c7 LT	1	/*
	2	* GIT - The information manager from hell
	3	*
	4	* Copyright (C) Linus Torvalds, 2005
	5	*/
e83c5163 LT	6	#include "cache.h"
e83c5163 LT	7
121481ab LT	8	/*
	9	* Default to not allowing changes to the list of files. The
	10	* tool doesn't actually care, but this makes it harder to add
	11	* files to the revision control by mistake by doing something
667bb59b	12	* like "git-update-cache *" and suddenly having all the object
121481ab LT	13	* files be revision controlled.
121481ab LT	14	*/
0ed3715f	15	static int allow_add = 0, allow_remove = 0, allow_replace = 0, not_new = 0, quiet = 0;
9b63f501	16	static int force_remove;
c6e007b0 JB	17
	18	/* Three functions to allow overloaded pointer return; see linux/err.h */
	19	static inline void *ERR_PTR(long error)
	20	{
	21	return (void *) error;
	22	}
	23
	24	static inline long PTR_ERR(const void *ptr)
	25	{
	26	return (long) ptr;
	27	}
	28
	29	static inline long IS_ERR(const void *ptr)
	30	{
	31	return (unsigned long)ptr > (unsigned long)-1000L;
	32	}
121481ab	33
ee267527	34	static int add_file_to_cache(char *path)
e83c5163	35	{
4c5abf42	36	int size, namelen, option, status;
e83c5163 LT	37	struct cache_entry *ce;
	38	struct stat st;
	39	int fd;
ffbe1add	40	char *target;
e83c5163	41
4c5abf42 JH	42	status = lstat(path, &st);
	43	if (status < 0 \|\| S_ISDIR(st.st_mode)) {
	44	/* When we used to have "path" and now we want to add
	45	* "path/file", we need a way to remove "path" before
	46	* being able to add "path/file". However,
	47	* "git-update-cache --remove path" would not work.
	48	* --force-remove can be used but this is more user
	49	* friendly, especially since we can do the opposite
	50	* case just fine without --force-remove.
	51	*/
	52	if (status == 0 \|\| (errno == ENOENT \|\| errno == ENOTDIR)) {
121481ab LT	53	if (allow_remove)
	54	return remove_file_from_cache(path);
	55	}
071c41a0	56	return error("open(\"%s\"): %s", path, strerror(errno));
e83c5163	57	}
e83c5163 LT	58	namelen = strlen(path);
e83c5163 LT	59	size = cache_entry_size(namelen);
812666c8	60	ce = xmalloc(size);
e83c5163 LT	61	memset(ce, 0, size);
e83c5163 LT	62	memcpy(ce->name, path, namelen);
711cf3a0	63	fill_stat_cache_info(ce, &st);
e4479470	64	ce->ce_mode = create_ce_mode(st.st_mode);
f5cabd13	65	ce->ce_flags = htons(namelen);
8ae0a8c5 KS	66	switch (st.st_mode & S_IFMT) {
	67	case S_IFREG:
	68	fd = open(path, O_RDONLY);
	69	if (fd < 0)
	70	return -1;
7672db20	71	if (index_fd(ce->sha1, fd, &st, 1, NULL) < 0)
8ae0a8c5 KS	72	return -1;
	73	break;
	74	case S_IFLNK:
ffbe1add KS	75	target = xmalloc(st.st_size+1);
	76	if (readlink(path, target, st.st_size+1) != st.st_size) {
	77	free(target);
8ae0a8c5	78	return -1;
ffbe1add KS	79	}
ffbe1add KS	80	if (write_sha1_file(target, st.st_size, "blob", ce->sha1))
8ae0a8c5	81	return -1;
ffbe1add	82	free(target);
8ae0a8c5 KS	83	break;
8ae0a8c5 KS	84	default:
e83c5163	85	return -1;
8ae0a8c5	86	}
192268c1 JH	87	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	88	option \|= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	89	return add_cache_entry(ce, option);
121481ab LT	90	}
121481ab LT	91
711cf3a0 LT	92	static int match_data(int fd, void *buffer, unsigned long size)
	93	{
	94	while (size) {
	95	char compare[1024];
	96	int ret = read(fd, compare, sizeof(compare));
	97
	98	if (ret <= 0 \|\| ret > size \|\| memcmp(buffer, compare, ret))
	99	return -1;
	100	size -= ret;
	101	buffer += ret;
	102	}
	103	return 0;
	104	}
	105
32d197f1	106	static int compare_data(struct cache_entry *ce, unsigned long expected_size)
121481ab	107	{
711cf3a0 LT	108	int match = -1;
	109	int fd = open(ce->name, O_RDONLY);
	110
	111	if (fd >= 0) {
	112	void *buffer;
	113	unsigned long size;
cb1da3a7	114	char type[20];
711cf3a0 LT	115
	116	buffer = read_sha1_file(ce->sha1, type, &size);
	117	if (buffer) {
32d197f1	118	if (size == expected_size && !strcmp(type, "blob"))
711cf3a0 LT	119	match = match_data(fd, buffer, size);
	120	free(buffer);
	121	}
	122	close(fd);
	123	}
	124	return match;
	125	}
	126
ffbe1add KS	127	static int compare_link(struct cache_entry *ce, unsigned long expected_size)
	128	{
	129	int match = -1;
	130	char *target;
	131	void *buffer;
	132	unsigned long size;
	133	char type[10];
	134	int len;
	135
	136	target = xmalloc(expected_size);
	137	len = readlink(ce->name, target, expected_size);
	138	if (len != expected_size) {
	139	free(target);
	140	return -1;
	141	}
	142	buffer = read_sha1_file(ce->sha1, type, &size);
	143	if (!buffer) {
	144	free(target);
	145	return -1;
	146	}
	147	if (size == expected_size)
	148	match = memcmp(buffer, target, size);
	149	free(buffer);
	150	free(target);
	151	return match;
	152	}
	153
711cf3a0 LT	154	/*
	155	* "refresh" does not calculate a new sha1 file or bring the
	156	* cache up-to-date for mode/content changes. But what it
	157	* _does_ do is to "re-match" the stat information of a file
	158	* with the cache, so that you can refresh the cache for a
	159	* file that hasn't been changed but where the stat entry is
	160	* out of date.
	161	*
667bb59b	162	* For example, you'd want to do this after doing a "git-read-tree",
711cf3a0 LT	163	* to link up the stat cache details with the proper files.
	164	*/
	165	static struct cache_entry refresh_entry(struct cache_entry ce)
	166	{
	167	struct stat st;
	168	struct cache_entry *updated;
	169	int changed, size;
	170
8ae0a8c5	171	if (lstat(ce->name, &st) < 0)
c6e007b0	172	return ERR_PTR(-errno);
711cf3a0	173
5d728c84	174	changed = ce_match_stat(ce, &st);
711cf3a0 LT	175	if (!changed)
	176	return ce;
	177
121481ab	178	/*
8ae0a8c5	179	* If the mode or type has changed, there's no point in trying
711cf3a0	180	* to refresh the entry - it's not going to match
121481ab	181	*/
8ae0a8c5	182	if (changed & (MODE_CHANGED \| TYPE_CHANGED))
c6e007b0	183	return ERR_PTR(-EINVAL);
711cf3a0	184
ffbe1add KS	185	switch (st.st_mode & S_IFMT) {
	186	case S_IFREG:
	187	if (compare_data(ce, st.st_size))
	188	return ERR_PTR(-EINVAL);
	189	break;
	190	case S_IFLNK:
	191	if (compare_link(ce, st.st_size))
	192	return ERR_PTR(-EINVAL);
	193	break;
	194	default:
c6e007b0	195	return ERR_PTR(-EINVAL);
ffbe1add	196	}
711cf3a0 LT	197
711cf3a0 LT	198	size = ce_size(ce);
812666c8	199	updated = xmalloc(size);
711cf3a0 LT	200	memcpy(updated, ce, size);
	201	fill_stat_cache_info(updated, &st);
	202	return updated;
121481ab LT	203	}
121481ab LT	204
90535218	205	static int refresh_cache(void)
121481ab LT	206	{
121481ab LT	207	int i;
90535218	208	int has_errors = 0;
121481ab	209
711cf3a0	210	for (i = 0; i < active_nr; i++) {
1bc992ac JH	211	struct cache_entry ce, new;
	212	ce = active_cache[i];
	213	if (ce_stage(ce)) {
	214	printf("%s: needs merge\n", ce->name);
90535218	215	has_errors = 1;
1bc992ac JH	216	while ((i < active_nr) &&
	217	! strcmp(active_cache[i]->name, ce->name))
	218	i++;
	219	i--;
	220	continue;
	221	}
711cf3a0	222
1bc992ac	223	new = refresh_entry(ce);
c6e007b0	224	if (IS_ERR(new)) {
0ed3715f LT	225	if (not_new && PTR_ERR(new) == -ENOENT)
	226	continue;
	227	if (quiet)
	228	continue;
	229	printf("%s: needs update\n", ce->name);
	230	has_errors = 1;
711cf3a0 LT	231	continue;
711cf3a0 LT	232	}
ee267527	233	active_cache_changed = 1;
62d046a0 PB	234	/* You can NOT just free active_cache[i] here, since it
	235	* might not be necessarily malloc()ed but can also come
	236	* from mmap(). */
711cf3a0 LT	237	active_cache[i] = new;
711cf3a0 LT	238	}
90535218	239	return has_errors;
e83c5163 LT	240	}
e83c5163 LT	241
e83c5163 LT	242	/*
e83c5163 LT	243	* We fundamentally don't like some paths: we don't want
320d3a1b LT	244	* dot or dot-dot anywhere, and for obvious reasons don't
320d3a1b LT	245	* want to recurse into ".git" either.
e83c5163 LT	246	*
e83c5163 LT	247	* Also, we don't want double slashes or slashes at the
aebb2679	248	* end that can make pathnames ambiguous.
e83c5163	249	*/
320d3a1b LT	250	static int verify_dotfile(const char *rest)
	251	{
	252	/*
	253	* The first character was '.', but that
	254	* has already been discarded, we now test
	255	* the rest.
	256	*/
	257	switch (*rest) {
	258	/* "." is not allowed */
	259	case '\0': case '/':
	260	return 0;
	261
	262	/*
	263	* ".git" followed by NUL or slash is bad. This
	264	* shares the path end test with the ".." case.
	265	*/
	266	case 'g':
	267	if (rest[1] != 'i')
	268	break;
	269	if (rest[2] != 't')
	270	break;
	271	rest += 2;
	272	/* fallthrough */
	273	case '.':
	274	if (rest[1] == '\0' \|\| rest[1] == '/')
	275	return 0;
	276	}
	277	return 1;
	278	}
	279
e83c5163 LT	280	static int verify_path(char *path)
	281	{
	282	char c;
	283
	284	goto inside;
	285	for (;;) {
	286	if (!c)
	287	return 1;
	288	if (c == '/') {
	289	inside:
	290	c = *path++;
320d3a1b LT	291	switch (c) {
320d3a1b LT	292	default:
e83c5163	293	continue;
320d3a1b LT	294	case '/': case '\0':
	295	break;
	296	case '.':
	297	if (verify_dotfile(path))
	298	continue;
	299	}
e83c5163 LT	300	return 0;
	301	}
	302	c = *path++;
	303	}
	304	}
	305
9945d980 LT	306	static int add_cacheinfo(char arg1, char arg2, char *arg3)
9945d980 LT	307	{
192268c1	308	int size, len, option;
9945d980 LT	309	unsigned int mode;
	310	unsigned char sha1[20];
	311	struct cache_entry *ce;
	312
	313	if (sscanf(arg1, "%o", &mode) != 1)
	314	return -1;
9945d980 LT	315	if (get_sha1_hex(arg2, sha1))
9945d980 LT	316	return -1;
9945d980 LT	317	if (!verify_path(arg3))
9945d980 LT	318	return -1;
9945d980 LT	319
	320	len = strlen(arg3);
	321	size = cache_entry_size(len);
812666c8	322	ce = xmalloc(size);
9945d980 LT	323	memset(ce, 0, size);
	324
	325	memcpy(ce->sha1, sha1, 20);
	326	memcpy(ce->name, arg3, len);
f5cabd13	327	ce->ce_flags = htons(len);
e4479470	328	ce->ce_mode = create_ce_mode(mode);
192268c1 JH	329	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	330	option \|= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	331	return add_cache_entry(ce, option);
9945d980 LT	332	}
9945d980 LT	333
e99d59ff	334	static struct cache_file cache_file;
f2a19340	335
e83c5163 LT	336	int main(int argc, char **argv)
e83c5163 LT	337	{
90535218	338	int i, newfd, entries, has_errors = 0;
121481ab	339	int allow_options = 1;
bb233d69	340
415e96c8	341	newfd = hold_index_file_for_update(&cache_file, get_index_file());
9614b8dc	342	if (newfd < 0)
2de381f9	343	die("unable to create new cachefile");
9614b8dc	344
e83c5163	345	entries = read_cache();
9614b8dc	346	if (entries < 0)
2de381f9	347	die("cache corrupted");
e83c5163	348
e83c5163 LT	349	for (i = 1 ; i < argc; i++) {
e83c5163 LT	350	char *path = argv[i];
121481ab LT	351
	352	if (allow_options && *path == '-') {
	353	if (!strcmp(path, "--")) {
	354	allow_options = 0;
	355	continue;
	356	}
0ed3715f LT	357	if (!strcmp(path, "-q")) {
	358	quiet = 1;
	359	continue;
	360	}
121481ab LT	361	if (!strcmp(path, "--add")) {
	362	allow_add = 1;
	363	continue;
	364	}
192268c1 JH	365	if (!strcmp(path, "--replace")) {
	366	allow_replace = 1;
	367	continue;
	368	}
121481ab LT	369	if (!strcmp(path, "--remove")) {
	370	allow_remove = 1;
	371	continue;
	372	}
	373	if (!strcmp(path, "--refresh")) {
90535218	374	has_errors \|= refresh_cache();
121481ab LT	375	continue;
121481ab LT	376	}
9945d980	377	if (!strcmp(path, "--cacheinfo")) {
b3f94c4b	378	if (i+3 >= argc)
667bb59b	379	die("git-update-cache: --cacheinfo <mode> <sha1> <path>");
b3f94c4b	380	if (add_cacheinfo(argv[i+1], argv[i+2], argv[i+3]))
667bb59b	381	die("git-update-cache: --cacheinfo cannot add %s", argv[i+3]);
9945d980 LT	382	i += 3;
	383	continue;
	384	}
0ff5bf7c	385	if (!strcmp(path, "--force-remove")) {
9b63f501	386	force_remove = 1;
0ff5bf7c JH	387	continue;
	388	}
	389
c6e007b0 JB	390	if (!strcmp(path, "--ignore-missing")) {
	391	not_new = 1;
	392	continue;
	393	}
2de381f9	394	die("unknown option %s", path);
121481ab	395	}
e83c5163 LT	396	if (!verify_path(path)) {
	397	fprintf(stderr, "Ignoring path %s\n", argv[i]);
	398	continue;
	399	}
9b63f501 PB	400	if (force_remove) {
	401	if (remove_file_from_cache(path))
	402	die("git-update-cache: --force-remove cannot remove %s", path);
	403	continue;
	404	}
9614b8dc	405	if (add_file_to_cache(path))
2de381f9	406	die("Unable to add %s to database", path);
e83c5163	407	}
415e96c8 JH	408	if (write_cache(newfd, active_cache, active_nr) \|\|
415e96c8 JH	409	commit_index_file(&cache_file))
2de381f9	410	die("Unable to write new cachefile");
9614b8dc	411
c4b83e61	412	return has_errors ? 1 : 0;
e83c5163	413	}