2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
10 #include "cache-tree.h"
11 #include "tree-walk.h"
14 #include "resolve-undo.h"
15 #include "parse-options.h"
18 #include "split-index.h"
21 * Default to not allowing changes to the list of files. The
22 * tool doesn't actually care, but this makes it harder to add
23 * files to the revision control by mistake by doing something
24 * like "git update-index *" and suddenly having all the object
25 * files be revision controlled.
28 static int allow_remove;
29 static int allow_replace;
31 static int force_remove;
33 static int mark_valid_only;
34 static int mark_skip_worktree_only;
37 static struct strbuf mtime_dir = STRBUF_INIT;
39 /* Untracked cache mode */
48 __attribute__((format (printf, 1, 2)))
49 static void report(const char *fmt, ...)
62 static void remove_test_directory(void)
65 remove_dir_recursively(&mtime_dir, 0);
68 static const char *get_mtime_path(const char *path)
70 static struct strbuf sb = STRBUF_INIT;
72 strbuf_addf(&sb, "%s/%s", mtime_dir.buf, path);
76 static void xmkdir(const char *path)
78 path = get_mtime_path(path);
79 if (mkdir(path, 0700))
80 die_errno(_("failed to create directory %s"), path);
83 static int xstat_mtime_dir(struct stat *st)
85 if (stat(mtime_dir.buf, st))
86 die_errno(_("failed to stat %s"), mtime_dir.buf);
90 static int create_file(const char *path)
93 path = get_mtime_path(path);
94 fd = open(path, O_CREAT | O_RDWR, 0644);
96 die_errno(_("failed to create file %s"), path);
100 static void xunlink(const char *path)
102 path = get_mtime_path(path);
104 die_errno(_("failed to delete file %s"), path);
107 static void xrmdir(const char *path)
109 path = get_mtime_path(path);
111 die_errno(_("failed to delete directory %s"), path);
114 static void avoid_racy(void)
117 * not use if we could usleep(10) if USE_NSEC is defined. The
118 * field nsec could be there, but the OS could choose to
124 static int test_if_untracked_cache_is_supported(void)
127 struct stat_data base;
131 strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX");
132 if (!mkdtemp(mtime_dir.buf))
133 die_errno("Could not make temporary directory");
136 fprintf(stderr, _("Testing mtime in '%s' "), cwd);
139 atexit(remove_test_directory);
140 xstat_mtime_dir(&st);
141 fill_stat_data(&base, &st);
145 fd = create_file("newfile");
146 xstat_mtime_dir(&st);
147 if (!match_stat_data(&base, &st)) {
150 fprintf_ln(stderr,_("directory stat info does not "
151 "change after adding a new file"));
154 fill_stat_data(&base, &st);
159 xstat_mtime_dir(&st);
160 if (!match_stat_data(&base, &st)) {
163 fprintf_ln(stderr, _("directory stat info does not change "
164 "after adding a new directory"));
167 fill_stat_data(&base, &st);
171 write_or_die(fd, "data", 4);
173 xstat_mtime_dir(&st);
174 if (match_stat_data(&base, &st)) {
176 fprintf_ln(stderr, _("directory stat info changes "
177 "after updating a file"));
183 close(create_file("new-dir/new"));
184 xstat_mtime_dir(&st);
185 if (match_stat_data(&base, &st)) {
187 fprintf_ln(stderr, _("directory stat info changes after "
188 "adding a file inside subdirectory"));
195 xstat_mtime_dir(&st);
196 if (!match_stat_data(&base, &st)) {
198 fprintf_ln(stderr, _("directory stat info does not "
199 "change after deleting a file"));
202 fill_stat_data(&base, &st);
206 xunlink("new-dir/new");
208 xstat_mtime_dir(&st);
209 if (!match_stat_data(&base, &st)) {
211 fprintf_ln(stderr, _("directory stat info does not "
212 "change after deleting a directory"));
216 if (rmdir(mtime_dir.buf))
217 die_errno(_("failed to delete directory %s"), mtime_dir.buf);
218 fprintf_ln(stderr, _(" OK"));
222 strbuf_release(&mtime_dir);
226 static int mark_ce_flags(const char *path, int flag, int mark)
228 int namelen = strlen(path);
229 int pos = cache_name_pos(path, namelen);
232 active_cache[pos]->ce_flags |= flag;
234 active_cache[pos]->ce_flags &= ~flag;
235 active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
236 cache_tree_invalidate_path(&the_index, path);
237 active_cache_changed |= CE_ENTRY_CHANGED;
243 static int remove_one_path(const char *path)
246 return error("%s: does not exist and --remove not passed", path);
247 if (remove_file_from_cache(path))
248 return error("%s: cannot remove from the index", path);
253 * Handle a path that couldn't be lstat'ed. It's either:
254 * - missing file (ENOENT or ENOTDIR). That's ok if we're
255 * supposed to be removing it and the removal actually
257 * - permission error. That's never ok.
259 static int process_lstat_error(const char *path, int err)
261 if (is_missing_file_error(err))
262 return remove_one_path(path);
263 return error("lstat(\"%s\"): %s", path, strerror(err));
266 static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
269 struct cache_entry *ce;
271 /* Was the old index entry already up-to-date? */
272 if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
275 size = cache_entry_size(len);
276 ce = xcalloc(1, size);
277 memcpy(ce->name, path, len);
278 ce->ce_flags = create_ce_flags(0);
279 ce->ce_namelen = len;
280 fill_stat_cache_info(ce, st);
281 ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
283 if (index_path(ce->oid.hash, path, st,
284 info_only ? 0 : HASH_WRITE_OBJECT)) {
288 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
289 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
290 if (add_cache_entry(ce, option))
291 return error("%s: cannot add to the index - missing --add option?", path);
296 * Handle a path that was a directory. Four cases:
298 * - it's already a gitlink in the index, and we keep it that
299 * way, and update it if we can (if we cannot find the HEAD,
300 * we're going to keep it unchanged in the index!)
302 * - it's a *file* in the index, in which case it should be
303 * removed as a file if removal is allowed, since it doesn't
304 * exist as such any more. If removal isn't allowed, it's
307 * (NOTE! This is old and arguably fairly strange behaviour.
308 * We might want to make this an error unconditionally, and
309 * use "--force-remove" if you actually want to force removal).
311 * - it used to exist as a subdirectory (ie multiple files with
312 * this particular prefix) in the index, in which case it's wrong
313 * to try to update it as a directory.
315 * - it doesn't exist at all in the index, but it is a valid
316 * git directory, and it should be *added* as a gitlink.
318 static int process_directory(const char *path, int len, struct stat *st)
320 struct object_id oid;
321 int pos = cache_name_pos(path, len);
323 /* Exact match: file or existing gitlink */
325 const struct cache_entry *ce = active_cache[pos];
326 if (S_ISGITLINK(ce->ce_mode)) {
328 /* Do nothing to the index if there is no HEAD! */
329 if (resolve_gitlink_ref(path, "HEAD", oid.hash) < 0)
332 return add_one_path(ce, path, len, st);
334 /* Should this be an unconditional error? */
335 return remove_one_path(path);
338 /* Inexact match: is there perhaps a subdirectory match? */
340 while (pos < active_nr) {
341 const struct cache_entry *ce = active_cache[pos++];
343 if (strncmp(ce->name, path, len))
345 if (ce->name[len] > '/')
347 if (ce->name[len] < '/')
350 /* Subdirectory match - error out */
351 return error("%s: is a directory - add individual files instead", path);
354 /* No match - should we add it as a gitlink? */
355 if (!resolve_gitlink_ref(path, "HEAD", oid.hash))
356 return add_one_path(NULL, path, len, st);
359 return error("%s: is a directory - add files inside instead", path);
362 static int process_path(const char *path)
366 const struct cache_entry *ce;
369 if (has_symlink_leading_path(path, len))
370 return error("'%s' is beyond a symbolic link", path);
372 pos = cache_name_pos(path, len);
373 ce = pos < 0 ? NULL : active_cache[pos];
374 if (ce && ce_skip_worktree(ce)) {
376 * working directory version is assumed "good"
377 * so updating it does not make sense.
378 * On the other hand, removing it from index should work
380 if (allow_remove && remove_file_from_cache(path))
381 return error("%s: cannot remove from the index", path);
386 * First things first: get the stat information, to decide
387 * what to do about the pathname!
389 if (lstat(path, &st) < 0)
390 return process_lstat_error(path, errno);
392 if (S_ISDIR(st.st_mode))
393 return process_directory(path, len, &st);
395 return add_one_path(ce, path, len, &st);
398 static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
399 const char *path, int stage)
401 int size, len, option;
402 struct cache_entry *ce;
404 if (!verify_path(path))
405 return error("Invalid path '%s'", path);
408 size = cache_entry_size(len);
409 ce = xcalloc(1, size);
411 oidcpy(&ce->oid, oid);
412 memcpy(ce->name, path, len);
413 ce->ce_flags = create_ce_flags(stage);
414 ce->ce_namelen = len;
415 ce->ce_mode = create_ce_mode(mode);
416 if (assume_unchanged)
417 ce->ce_flags |= CE_VALID;
418 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
419 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
420 if (add_cache_entry(ce, option))
421 return error("%s: cannot add to the index - missing --add option?",
423 report("add '%s'", path);
427 static void chmod_path(char flip, const char *path)
430 struct cache_entry *ce;
432 pos = cache_name_pos(path, strlen(path));
435 ce = active_cache[pos];
436 if (chmod_cache_entry(ce, flip) < 0)
439 report("chmod %cx '%s'", flip, path);
442 die("git update-index: cannot chmod %cx '%s'", flip, path);
445 static void update_one(const char *path)
447 if (!verify_path(path)) {
448 fprintf(stderr, "Ignoring path %s\n", path);
451 if (mark_valid_only) {
452 if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG))
453 die("Unable to mark file %s", path);
456 if (mark_skip_worktree_only) {
457 if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG))
458 die("Unable to mark file %s", path);
463 if (remove_file_from_cache(path))
464 die("git update-index: unable to remove %s", path);
465 report("remove '%s'", path);
468 if (process_path(path))
469 die("Unable to process path %s", path);
470 report("add '%s'", path);
473 static void read_index_info(int nul_term_line)
475 struct strbuf buf = STRBUF_INIT;
476 struct strbuf uq = STRBUF_INIT;
477 strbuf_getline_fn getline_fn;
479 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
480 while (getline_fn(&buf, stdin) != EOF) {
483 struct object_id oid;
488 /* This reads lines formatted in one of three formats:
490 * (1) mode SP sha1 TAB path
491 * The first format is what "git apply --index-info"
492 * reports, and used to reconstruct a partial tree
493 * that is used for phony merge base tree when falling
494 * back on 3-way merge.
496 * (2) mode SP type SP sha1 TAB path
497 * The second format is to stuff "git ls-tree" output
498 * into the index file.
500 * (3) mode SP sha1 SP stage TAB path
501 * This format is to put higher order stages into the
502 * index file and matches "git ls-files --stage" output.
505 ul = strtoul(buf.buf, &ptr, 8);
506 if (ptr == buf.buf || *ptr != ' '
507 || errno || (unsigned int) ul != ul)
511 tab = strchr(ptr, '\t');
512 if (!tab || tab - ptr < GIT_SHA1_HEXSZ + 1)
515 if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') {
516 stage = tab[-1] - '0';
517 ptr = tab + 1; /* point at the head of path */
518 tab = tab - 2; /* point at tail of sha1 */
522 ptr = tab + 1; /* point at the head of path */
525 if (get_oid_hex(tab - GIT_SHA1_HEXSZ, &oid) ||
526 tab[-(GIT_SHA1_HEXSZ + 1)] != ' ')
530 if (!nul_term_line && path_name[0] == '"') {
532 if (unquote_c_style(&uq, path_name, NULL)) {
533 die("git update-index: bad quoting of path name");
538 if (!verify_path(path_name)) {
539 fprintf(stderr, "Ignoring path %s\n", path_name);
544 /* mode == 0 means there is no such path -- remove */
545 if (remove_file_from_cache(path_name))
546 die("git update-index: unable to remove %s",
550 /* mode ' ' sha1 '\t' name
551 * ptr[-1] points at tab,
552 * ptr[-41] is at the beginning of sha1
554 ptr[-(GIT_SHA1_HEXSZ + 2)] = ptr[-1] = 0;
555 if (add_cacheinfo(mode, &oid, path_name, stage))
556 die("git update-index: unable to update %s",
562 die("malformed index info %s", buf.buf);
564 strbuf_release(&buf);
568 static const char * const update_index_usage[] = {
569 N_("git update-index [<options>] [--] [<file>...]"),
573 static struct object_id head_oid;
574 static struct object_id merge_head_oid;
576 static struct cache_entry *read_one_ent(const char *which,
577 struct object_id *ent, const char *path,
578 int namelen, int stage)
581 struct object_id oid;
583 struct cache_entry *ce;
585 if (get_tree_entry(ent->hash, path, oid.hash, &mode)) {
587 error("%s: not in %s branch.", path, which);
590 if (mode == S_IFDIR) {
592 error("%s: not a blob in %s branch.", path, which);
595 size = cache_entry_size(namelen);
596 ce = xcalloc(1, size);
598 oidcpy(&ce->oid, &oid);
599 memcpy(ce->name, path, namelen);
600 ce->ce_flags = create_ce_flags(stage);
601 ce->ce_namelen = namelen;
602 ce->ce_mode = create_ce_mode(mode);
606 static int unresolve_one(const char *path)
608 int namelen = strlen(path);
611 struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
613 /* See if there is such entry in the index. */
614 pos = cache_name_pos(path, namelen);
617 pos = unmerge_cache_entry_at(pos);
618 if (pos < active_nr) {
619 const struct cache_entry *ce = active_cache[pos];
621 ce_namelen(ce) == namelen &&
622 !memcmp(ce->name, path, namelen))
625 /* no resolve-undo information; fall back */
627 /* If there isn't, either it is unmerged, or
628 * resolved as "removed" by mistake. We do not
629 * want to do anything in the former case.
632 if (pos < active_nr) {
633 const struct cache_entry *ce = active_cache[pos];
634 if (ce_namelen(ce) == namelen &&
635 !memcmp(ce->name, path, namelen)) {
637 "%s: skipping still unmerged path.\n",
644 /* Grab blobs from given path from HEAD and MERGE_HEAD,
645 * stuff HEAD version in stage #2,
646 * stuff MERGE_HEAD version in stage #3.
648 ce_2 = read_one_ent("our", &head_oid, path, namelen, 2);
649 ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3);
651 if (!ce_2 || !ce_3) {
655 if (!oidcmp(&ce_2->oid, &ce_3->oid) &&
656 ce_2->ce_mode == ce_3->ce_mode) {
657 fprintf(stderr, "%s: identical in both, skipping.\n",
662 remove_file_from_cache(path);
663 if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
664 error("%s: cannot add our version to the index.", path);
668 if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
670 error("%s: cannot add their version to the index.", path);
678 static void read_head_pointers(void)
680 if (read_ref("HEAD", head_oid.hash))
681 die("No HEAD -- no initial commit yet?");
682 if (read_ref("MERGE_HEAD", merge_head_oid.hash)) {
683 fprintf(stderr, "Not in the middle of a merge.\n");
688 static int do_unresolve(int ac, const char **av,
689 const char *prefix, int prefix_length)
694 /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
695 * are not doing a merge, so exit with success status.
697 read_head_pointers();
699 for (i = 1; i < ac; i++) {
700 const char *arg = av[i];
701 char *p = prefix_path(prefix, prefix_length, arg);
702 err |= unresolve_one(p);
708 static int do_reupdate(int ac, const char **av,
709 const char *prefix, int prefix_length)
711 /* Read HEAD and run update-index on paths that are
712 * merged and already different between index and HEAD.
716 struct pathspec pathspec;
718 parse_pathspec(&pathspec, 0,
722 if (read_ref("HEAD", head_oid.hash))
723 /* If there is no HEAD, that means it is an initial
724 * commit. Update everything in the index.
728 for (pos = 0; pos < active_nr; pos++) {
729 const struct cache_entry *ce = active_cache[pos];
730 struct cache_entry *old = NULL;
734 if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL))
737 old = read_one_ent(NULL, &head_oid,
738 ce->name, ce_namelen(ce), 0);
739 if (old && ce->ce_mode == old->ce_mode &&
740 !oidcmp(&ce->oid, &old->oid)) {
742 continue; /* unchanged */
744 /* Be careful. The working tree may not have the
745 * path anymore, in which case, under 'allow_remove',
746 * or worse yet 'allow_replace', active_nr may decrease.
749 path = xstrdup(ce->name);
753 if (save_nr != active_nr)
756 clear_pathspec(&pathspec);
760 struct refresh_params {
765 static int refresh(struct refresh_params *o, unsigned int flag)
768 read_cache_preload(NULL);
769 *o->has_errors |= refresh_cache(o->flags | flag);
773 static int refresh_callback(const struct option *opt,
774 const char *arg, int unset)
776 return refresh(opt->value, 0);
779 static int really_refresh_callback(const struct option *opt,
780 const char *arg, int unset)
782 return refresh(opt->value, REFRESH_REALLY);
785 static int chmod_callback(const struct option *opt,
786 const char *arg, int unset)
788 char *flip = opt->value;
789 if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2])
790 return error("option 'chmod' expects \"+x\" or \"-x\"");
795 static int resolve_undo_clear_callback(const struct option *opt,
796 const char *arg, int unset)
798 resolve_undo_clear();
802 static int parse_new_style_cacheinfo(const char *arg,
804 struct object_id *oid,
814 ul = strtoul(arg, &endp, 8);
815 if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
816 return -1; /* not a new-style cacheinfo */
819 if (get_oid_hex(endp, oid) || endp[GIT_SHA1_HEXSZ] != ',')
821 *path = endp + GIT_SHA1_HEXSZ + 1;
825 static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
826 const struct option *opt, int unset)
828 struct object_id oid;
832 if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
833 if (add_cacheinfo(mode, &oid, path, 0))
834 die("git update-index: --cacheinfo cannot add %s", path);
840 return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
841 if (strtoul_ui(*++ctx->argv, 8, &mode) ||
842 get_oid_hex(*++ctx->argv, &oid) ||
843 add_cacheinfo(mode, &oid, *++ctx->argv, 0))
844 die("git update-index: --cacheinfo cannot add %s", *ctx->argv);
849 static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
850 const struct option *opt, int unset)
852 int *nul_term_line = opt->value;
855 return error("option '%s' must be the last argument", opt->long_name);
856 allow_add = allow_replace = allow_remove = 1;
857 read_index_info(*nul_term_line);
861 static int stdin_callback(struct parse_opt_ctx_t *ctx,
862 const struct option *opt, int unset)
864 int *read_from_stdin = opt->value;
867 return error("option '%s' must be the last argument", opt->long_name);
868 *read_from_stdin = 1;
872 static int unresolve_callback(struct parse_opt_ctx_t *ctx,
873 const struct option *opt, int flags)
875 int *has_errors = opt->value;
876 const char *prefix = startup_info->prefix;
878 /* consume remaining arguments. */
879 *has_errors = do_unresolve(ctx->argc, ctx->argv,
880 prefix, prefix ? strlen(prefix) : 0);
882 active_cache_changed = 0;
884 ctx->argv += ctx->argc - 1;
889 static int reupdate_callback(struct parse_opt_ctx_t *ctx,
890 const struct option *opt, int flags)
892 int *has_errors = opt->value;
893 const char *prefix = startup_info->prefix;
895 /* consume remaining arguments. */
897 *has_errors = do_reupdate(ctx->argc, ctx->argv,
898 prefix, prefix ? strlen(prefix) : 0);
900 active_cache_changed = 0;
902 ctx->argv += ctx->argc - 1;
907 int cmd_update_index(int argc, const char **argv, const char *prefix)
909 int newfd, entries, has_errors = 0, nul_term_line = 0;
910 enum uc_mode untracked_cache = UC_UNSPECIFIED;
911 int read_from_stdin = 0;
912 int prefix_length = prefix ? strlen(prefix) : 0;
913 int preferred_index_format = 0;
914 char set_executable_bit = 0;
915 struct refresh_params refresh_args = {0, &has_errors};
917 int split_index = -1;
918 struct lock_file *lock_file;
919 struct parse_opt_ctx_t ctx;
920 strbuf_getline_fn getline_fn;
921 int parseopt_state = PARSE_OPT_UNKNOWN;
922 struct option options[] = {
923 OPT_BIT('q', NULL, &refresh_args.flags,
924 N_("continue refresh even when index needs update"),
926 OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
927 N_("refresh: ignore submodules"),
928 REFRESH_IGNORE_SUBMODULES),
929 OPT_SET_INT(0, "add", &allow_add,
930 N_("do not ignore new files"), 1),
931 OPT_SET_INT(0, "replace", &allow_replace,
932 N_("let files replace directories and vice-versa"), 1),
933 OPT_SET_INT(0, "remove", &allow_remove,
934 N_("notice files missing from worktree"), 1),
935 OPT_BIT(0, "unmerged", &refresh_args.flags,
936 N_("refresh even if index contains unmerged entries"),
938 {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
939 N_("refresh stat information"),
940 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
942 {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
943 N_("like --refresh, but ignore assume-unchanged setting"),
944 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
945 really_refresh_callback},
946 {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
947 N_("<mode>,<object>,<path>"),
948 N_("add the specified entry to the index"),
949 PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
950 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
951 (parse_opt_cb *) cacheinfo_callback},
952 {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),
953 N_("override the executable bit of the listed files"),
954 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
956 {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
957 N_("mark files as \"not changing\""),
958 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
959 {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
960 N_("clear assumed-unchanged bit"),
961 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
962 {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
963 N_("mark files as \"index-only\""),
964 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
965 {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
966 N_("clear skip-worktree bit"),
967 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
968 OPT_SET_INT(0, "info-only", &info_only,
969 N_("add to index only; do not add content to object database"), 1),
970 OPT_SET_INT(0, "force-remove", &force_remove,
971 N_("remove named paths even if present in worktree"), 1),
972 OPT_BOOL('z', NULL, &nul_term_line,
973 N_("with --stdin: input lines are terminated by null bytes")),
974 {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
975 N_("read list of paths to be updated from standard input"),
976 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
977 (parse_opt_cb *) stdin_callback},
978 {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
979 N_("add entries from standard input to the index"),
980 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
981 (parse_opt_cb *) stdin_cacheinfo_callback},
982 {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
983 N_("repopulate stages #2 and #3 for the listed paths"),
984 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
985 (parse_opt_cb *) unresolve_callback},
986 {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
987 N_("only update entries that differ from HEAD"),
988 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
989 (parse_opt_cb *) reupdate_callback},
990 OPT_BIT(0, "ignore-missing", &refresh_args.flags,
991 N_("ignore files missing from worktree"),
992 REFRESH_IGNORE_MISSING),
993 OPT_SET_INT(0, "verbose", &verbose,
994 N_("report actions to standard output"), 1),
995 {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
996 N_("(for porcelains) forget saved unresolved conflicts"),
997 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
998 resolve_undo_clear_callback},
999 OPT_INTEGER(0, "index-version", &preferred_index_format,
1000 N_("write index in this format")),
1001 OPT_BOOL(0, "split-index", &split_index,
1002 N_("enable or disable split index")),
1003 OPT_BOOL(0, "untracked-cache", &untracked_cache,
1004 N_("enable/disable untracked cache")),
1005 OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
1006 N_("test if the filesystem supports untracked cache"), UC_TEST),
1007 OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
1008 N_("enable untracked cache without testing the filesystem"), UC_FORCE),
1012 if (argc == 2 && !strcmp(argv[1], "-h"))
1013 usage_with_options(update_index_usage, options);
1015 git_config(git_default_config, NULL);
1017 /* We can't free this memory, it becomes part of a linked list parsed atexit() */
1018 lock_file = xcalloc(1, sizeof(struct lock_file));
1020 /* we will diagnose later if it turns out that we need to update it */
1021 newfd = hold_locked_index(lock_file, 0);
1025 entries = read_cache();
1027 die("cache corrupted");
1030 * Custom copy of parse_options() because we want to handle
1031 * filename arguments as they come.
1033 parse_options_start(&ctx, argc, argv, prefix,
1034 options, PARSE_OPT_STOP_AT_NON_OPTION);
1036 if (parseopt_state != PARSE_OPT_DONE)
1037 parseopt_state = parse_options_step(&ctx, options,
1038 update_index_usage);
1041 switch (parseopt_state) {
1042 case PARSE_OPT_HELP:
1044 case PARSE_OPT_NON_OPTION:
1045 case PARSE_OPT_DONE:
1047 const char *path = ctx.argv[0];
1051 p = prefix_path(prefix, prefix_length, path);
1053 if (set_executable_bit)
1054 chmod_path(set_executable_bit, p);
1060 case PARSE_OPT_UNKNOWN:
1061 if (ctx.argv[0][1] == '-')
1062 error("unknown option '%s'", ctx.argv[0] + 2);
1064 error("unknown switch '%c'", *ctx.opt);
1065 usage_with_options(update_index_usage, options);
1068 argc = parse_options_end(&ctx);
1070 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
1071 if (preferred_index_format) {
1072 if (preferred_index_format < INDEX_FORMAT_LB ||
1073 INDEX_FORMAT_UB < preferred_index_format)
1074 die("index-version %d not in range: %d..%d",
1075 preferred_index_format,
1076 INDEX_FORMAT_LB, INDEX_FORMAT_UB);
1078 if (the_index.version != preferred_index_format)
1079 active_cache_changed |= SOMETHING_CHANGED;
1080 the_index.version = preferred_index_format;
1083 if (read_from_stdin) {
1084 struct strbuf buf = STRBUF_INIT;
1085 struct strbuf unquoted = STRBUF_INIT;
1088 while (getline_fn(&buf, stdin) != EOF) {
1090 if (!nul_term_line && buf.buf[0] == '"') {
1091 strbuf_reset(&unquoted);
1092 if (unquote_c_style(&unquoted, buf.buf, NULL))
1093 die("line is badly quoted");
1094 strbuf_swap(&buf, &unquoted);
1096 p = prefix_path(prefix, prefix_length, buf.buf);
1098 if (set_executable_bit)
1099 chmod_path(set_executable_bit, p);
1102 strbuf_release(&unquoted);
1103 strbuf_release(&buf);
1106 if (split_index > 0) {
1107 if (git_config_get_split_index() == 0)
1108 warning(_("core.splitIndex is set to false; "
1109 "remove or change it, if you really want to "
1110 "enable split index"));
1111 if (the_index.split_index)
1112 the_index.cache_changed |= SPLIT_INDEX_ORDERED;
1114 add_split_index(&the_index);
1115 } else if (!split_index) {
1116 if (git_config_get_split_index() == 1)
1117 warning(_("core.splitIndex is set to true; "
1118 "remove or change it, if you really want to "
1119 "disable split index"));
1120 remove_split_index(&the_index);
1123 switch (untracked_cache) {
1124 case UC_UNSPECIFIED:
1127 if (git_config_get_untracked_cache() == 1)
1128 warning(_("core.untrackedCache is set to true; "
1129 "remove or change it, if you really want to "
1130 "disable the untracked cache"));
1131 remove_untracked_cache(&the_index);
1132 report(_("Untracked cache disabled"));
1136 return !test_if_untracked_cache_is_supported();
1139 if (git_config_get_untracked_cache() == 0)
1140 warning(_("core.untrackedCache is set to false; "
1141 "remove or change it, if you really want to "
1142 "enable the untracked cache"));
1143 add_untracked_cache(&the_index);
1144 report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
1147 die("BUG: bad untracked_cache value: %d", untracked_cache);
1150 if (active_cache_changed) {
1152 if (refresh_args.flags & REFRESH_QUIET)
1154 unable_to_lock_die(get_index_file(), lock_error);
1156 if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
1157 die("Unable to write new index file");
1160 rollback_lock_file(lock_file);
1162 return has_errors ? 1 : 0;