[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, info_only = 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, !info_only, 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 (info_only) {
			unsigned char hdr[50];
			int hdrlen;
			write_sha1_file_prepare(target, st.st_size, "blob",
						ce->sha1, hdr, &hdrlen);
		} else 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 compare_data(struct cache_entry *ce, struct stat *st)
{
	int match = -1;
	int fd = open(ce->name, O_RDONLY);

	if (fd >= 0) {
		unsigned char sha1[20];
		if (!index_fd(sha1, fd, st, 0, NULL))
			match = memcmp(sha1, ce->sha1, 20);
		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))
			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;
	const char *prefix = setup_git_directory();

	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, "--info-only")) {
				info_only = 1;
				continue;
			}
			if (!strcmp(path, "--force-remove")) {
				force_remove = 1;
				continue;
			}

			if (!strcmp(path, "--ignore-missing")) {
				not_new = 1;
				continue;
			}
			die("unknown option %s", path);
		}
		path = prefix_path(prefix, prefix ? strlen(prefix) : 0, 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	*/
df6e1516	15	static int allow_add = 0, allow_remove = 0, allow_replace = 0, not_new = 0, quiet = 0, info_only = 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;
df6e1516	71	if (index_fd(ce->sha1, fd, &st, !info_only, 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	79	}
df6e1516 BL	80	if (info_only) {
	81	unsigned char hdr[50];
	82	int hdrlen;
	83	write_sha1_file_prepare(target, st.st_size, "blob",
	84	ce->sha1, hdr, &hdrlen);
	85	} else if (write_sha1_file(target, st.st_size, "blob", ce->sha1))
8ae0a8c5	86	return -1;
ffbe1add	87	free(target);
8ae0a8c5 KS	88	break;
8ae0a8c5 KS	89	default:
e83c5163	90	return -1;
8ae0a8c5	91	}
192268c1 JH	92	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	93	option \|= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	94	return add_cache_entry(ce, option);
121481ab LT	95	}
121481ab LT	96
69a97f1d	97	static int compare_data(struct cache_entry ce, struct stat st)
121481ab	98	{
711cf3a0 LT	99	int match = -1;
	100	int fd = open(ce->name, O_RDONLY);
	101
	102	if (fd >= 0) {
69a97f1d BL	103	unsigned char sha1[20];
	104	if (!index_fd(sha1, fd, st, 0, NULL))
	105	match = memcmp(sha1, ce->sha1, 20);
711cf3a0 LT	106	close(fd);
	107	}
	108	return match;
	109	}
	110
ffbe1add KS	111	static int compare_link(struct cache_entry *ce, unsigned long expected_size)
	112	{
	113	int match = -1;
	114	char *target;
	115	void *buffer;
	116	unsigned long size;
	117	char type[10];
	118	int len;
	119
	120	target = xmalloc(expected_size);
	121	len = readlink(ce->name, target, expected_size);
	122	if (len != expected_size) {
	123	free(target);
	124	return -1;
	125	}
	126	buffer = read_sha1_file(ce->sha1, type, &size);
	127	if (!buffer) {
	128	free(target);
	129	return -1;
	130	}
	131	if (size == expected_size)
	132	match = memcmp(buffer, target, size);
	133	free(buffer);
	134	free(target);
	135	return match;
	136	}
	137
711cf3a0 LT	138	/*
	139	* "refresh" does not calculate a new sha1 file or bring the
	140	* cache up-to-date for mode/content changes. But what it
	141	* _does_ do is to "re-match" the stat information of a file
	142	* with the cache, so that you can refresh the cache for a
	143	* file that hasn't been changed but where the stat entry is
	144	* out of date.
	145	*
667bb59b	146	* For example, you'd want to do this after doing a "git-read-tree",
711cf3a0 LT	147	* to link up the stat cache details with the proper files.
	148	*/
	149	static struct cache_entry refresh_entry(struct cache_entry ce)
	150	{
	151	struct stat st;
	152	struct cache_entry *updated;
	153	int changed, size;
	154
8ae0a8c5	155	if (lstat(ce->name, &st) < 0)
c6e007b0	156	return ERR_PTR(-errno);
711cf3a0	157
5d728c84	158	changed = ce_match_stat(ce, &st);
711cf3a0 LT	159	if (!changed)
	160	return ce;
	161
121481ab	162	/*
8ae0a8c5	163	* If the mode or type has changed, there's no point in trying
711cf3a0	164	* to refresh the entry - it's not going to match
121481ab	165	*/
8ae0a8c5	166	if (changed & (MODE_CHANGED \| TYPE_CHANGED))
c6e007b0	167	return ERR_PTR(-EINVAL);
711cf3a0	168
ffbe1add KS	169	switch (st.st_mode & S_IFMT) {
ffbe1add KS	170	case S_IFREG:
69a97f1d	171	if (compare_data(ce, &st))
ffbe1add KS	172	return ERR_PTR(-EINVAL);
	173	break;
	174	case S_IFLNK:
	175	if (compare_link(ce, st.st_size))
	176	return ERR_PTR(-EINVAL);
	177	break;
	178	default:
c6e007b0	179	return ERR_PTR(-EINVAL);
ffbe1add	180	}
711cf3a0 LT	181
711cf3a0 LT	182	size = ce_size(ce);
812666c8	183	updated = xmalloc(size);
711cf3a0 LT	184	memcpy(updated, ce, size);
	185	fill_stat_cache_info(updated, &st);
	186	return updated;
121481ab LT	187	}
121481ab LT	188
90535218	189	static int refresh_cache(void)
121481ab LT	190	{
121481ab LT	191	int i;
90535218	192	int has_errors = 0;
121481ab	193
711cf3a0	194	for (i = 0; i < active_nr; i++) {
1bc992ac JH	195	struct cache_entry ce, new;
	196	ce = active_cache[i];
	197	if (ce_stage(ce)) {
	198	printf("%s: needs merge\n", ce->name);
90535218	199	has_errors = 1;
1bc992ac JH	200	while ((i < active_nr) &&
	201	! strcmp(active_cache[i]->name, ce->name))
	202	i++;
	203	i--;
	204	continue;
	205	}
711cf3a0	206
1bc992ac	207	new = refresh_entry(ce);
c6e007b0	208	if (IS_ERR(new)) {
0ed3715f LT	209	if (not_new && PTR_ERR(new) == -ENOENT)
	210	continue;
	211	if (quiet)
	212	continue;
	213	printf("%s: needs update\n", ce->name);
	214	has_errors = 1;
711cf3a0 LT	215	continue;
711cf3a0 LT	216	}
ee267527	217	active_cache_changed = 1;
62d046a0 PB	218	/* You can NOT just free active_cache[i] here, since it
	219	* might not be necessarily malloc()ed but can also come
	220	* from mmap(). */
711cf3a0 LT	221	active_cache[i] = new;
711cf3a0 LT	222	}
90535218	223	return has_errors;
e83c5163 LT	224	}
e83c5163 LT	225
e83c5163 LT	226	/*
e83c5163 LT	227	* We fundamentally don't like some paths: we don't want
320d3a1b LT	228	* dot or dot-dot anywhere, and for obvious reasons don't
320d3a1b LT	229	* want to recurse into ".git" either.
e83c5163 LT	230	*
e83c5163 LT	231	* Also, we don't want double slashes or slashes at the
aebb2679	232	* end that can make pathnames ambiguous.
e83c5163	233	*/
320d3a1b LT	234	static int verify_dotfile(const char *rest)
	235	{
	236	/*
	237	* The first character was '.', but that
	238	* has already been discarded, we now test
	239	* the rest.
	240	*/
	241	switch (*rest) {
	242	/* "." is not allowed */
	243	case '\0': case '/':
	244	return 0;
	245
	246	/*
	247	* ".git" followed by NUL or slash is bad. This
	248	* shares the path end test with the ".." case.
	249	*/
	250	case 'g':
	251	if (rest[1] != 'i')
	252	break;
	253	if (rest[2] != 't')
	254	break;
	255	rest += 2;
	256	/* fallthrough */
	257	case '.':
	258	if (rest[1] == '\0' \|\| rest[1] == '/')
	259	return 0;
	260	}
	261	return 1;
	262	}
	263
e83c5163 LT	264	static int verify_path(char *path)
	265	{
	266	char c;
	267
	268	goto inside;
	269	for (;;) {
	270	if (!c)
	271	return 1;
	272	if (c == '/') {
	273	inside:
	274	c = *path++;
320d3a1b LT	275	switch (c) {
320d3a1b LT	276	default:
e83c5163	277	continue;
320d3a1b LT	278	case '/': case '\0':
	279	break;
	280	case '.':
	281	if (verify_dotfile(path))
	282	continue;
	283	}
e83c5163 LT	284	return 0;
	285	}
	286	c = *path++;
	287	}
	288	}
	289
9945d980 LT	290	static int add_cacheinfo(char arg1, char arg2, char *arg3)
9945d980 LT	291	{
192268c1	292	int size, len, option;
9945d980 LT	293	unsigned int mode;
	294	unsigned char sha1[20];
	295	struct cache_entry *ce;
	296
	297	if (sscanf(arg1, "%o", &mode) != 1)
	298	return -1;
9945d980 LT	299	if (get_sha1_hex(arg2, sha1))
9945d980 LT	300	return -1;
9945d980 LT	301	if (!verify_path(arg3))
9945d980 LT	302	return -1;
9945d980 LT	303
	304	len = strlen(arg3);
	305	size = cache_entry_size(len);
812666c8	306	ce = xmalloc(size);
9945d980 LT	307	memset(ce, 0, size);
	308
	309	memcpy(ce->sha1, sha1, 20);
	310	memcpy(ce->name, arg3, len);
f5cabd13	311	ce->ce_flags = htons(len);
e4479470	312	ce->ce_mode = create_ce_mode(mode);
192268c1 JH	313	option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
	314	option \|= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
	315	return add_cache_entry(ce, option);
9945d980 LT	316	}
9945d980 LT	317
e99d59ff	318	static struct cache_file cache_file;
f2a19340	319
e83c5163 LT	320	int main(int argc, char **argv)
e83c5163 LT	321	{
90535218	322	int i, newfd, entries, has_errors = 0;
121481ab	323	int allow_options = 1;
cfb0af1d	324	const char *prefix = setup_git_directory();
bb233d69	325
415e96c8	326	newfd = hold_index_file_for_update(&cache_file, get_index_file());
9614b8dc	327	if (newfd < 0)
2de381f9	328	die("unable to create new cachefile");
9614b8dc	329
e83c5163	330	entries = read_cache();
9614b8dc	331	if (entries < 0)
2de381f9	332	die("cache corrupted");
e83c5163	333
e83c5163 LT	334	for (i = 1 ; i < argc; i++) {
e83c5163 LT	335	char *path = argv[i];
121481ab LT	336
	337	if (allow_options && *path == '-') {
	338	if (!strcmp(path, "--")) {
	339	allow_options = 0;
	340	continue;
	341	}
0ed3715f LT	342	if (!strcmp(path, "-q")) {
	343	quiet = 1;
	344	continue;
	345	}
121481ab LT	346	if (!strcmp(path, "--add")) {
	347	allow_add = 1;
	348	continue;
	349	}
192268c1 JH	350	if (!strcmp(path, "--replace")) {
	351	allow_replace = 1;
	352	continue;
	353	}
121481ab LT	354	if (!strcmp(path, "--remove")) {
	355	allow_remove = 1;
	356	continue;
	357	}
	358	if (!strcmp(path, "--refresh")) {
90535218	359	has_errors \|= refresh_cache();
121481ab LT	360	continue;
121481ab LT	361	}
9945d980	362	if (!strcmp(path, "--cacheinfo")) {
b3f94c4b	363	if (i+3 >= argc)
667bb59b	364	die("git-update-cache: --cacheinfo <mode> <sha1> <path>");
b3f94c4b	365	if (add_cacheinfo(argv[i+1], argv[i+2], argv[i+3]))
667bb59b	366	die("git-update-cache: --cacheinfo cannot add %s", argv[i+3]);
9945d980 LT	367	i += 3;
	368	continue;
	369	}
df6e1516 BL	370	if (!strcmp(path, "--info-only")) {
	371	info_only = 1;
	372	continue;
	373	}
0ff5bf7c	374	if (!strcmp(path, "--force-remove")) {
9b63f501	375	force_remove = 1;
0ff5bf7c JH	376	continue;
	377	}
	378
c6e007b0 JB	379	if (!strcmp(path, "--ignore-missing")) {
	380	not_new = 1;
	381	continue;
	382	}
2de381f9	383	die("unknown option %s", path);
121481ab	384	}
cfb0af1d	385	path = prefix_path(prefix, prefix ? strlen(prefix) : 0, path);
e83c5163 LT	386	if (!verify_path(path)) {
	387	fprintf(stderr, "Ignoring path %s\n", argv[i]);
	388	continue;
	389	}
9b63f501 PB	390	if (force_remove) {
	391	if (remove_file_from_cache(path))
	392	die("git-update-cache: --force-remove cannot remove %s", path);
	393	continue;
	394	}
9614b8dc	395	if (add_file_to_cache(path))
2de381f9	396	die("Unable to add %s to database", path);
e83c5163	397	}
415e96c8 JH	398	if (write_cache(newfd, active_cache, active_nr) \|\|
415e96c8 JH	399	commit_index_file(&cache_file))
2de381f9	400	die("Unable to write new cachefile");
9614b8dc	401
c4b83e61	402	return has_errors ? 1 : 0;
e83c5163	403	}