2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
6 #define USE_THE_INDEX_COMPATIBILITY_MACROS
11 #include "cache-tree.h"
12 #include "tree-walk.h"
15 #include "resolve-undo.h"
16 #include "parse-options.h"
19 #include "split-index.h"
20 #include "fsmonitor.h"
23 * Default to not allowing changes to the list of files. The
24 * tool doesn't actually care, but this makes it harder to add
25 * files to the revision control by mistake by doing something
26 * like "git update-index *" and suddenly having all the object
27 * files be revision controlled.
30 static int allow_remove;
31 static int allow_replace;
33 static int force_remove;
35 static int mark_valid_only;
36 static int mark_skip_worktree_only;
37 static int mark_fsmonitor_only;
40 static struct strbuf mtime_dir = STRBUF_INIT;
42 /* Untracked cache mode */
51 __attribute__((format (printf, 1, 2)))
52 static void report(const char *fmt, ...)
65 static void remove_test_directory(void)
68 remove_dir_recursively(&mtime_dir, 0);
71 static const char *get_mtime_path(const char *path)
73 static struct strbuf sb = STRBUF_INIT;
75 strbuf_addf(&sb, "%s/%s", mtime_dir.buf, path);
79 static void xmkdir(const char *path)
81 path = get_mtime_path(path);
82 if (mkdir(path, 0700))
83 die_errno(_("failed to create directory %s"), path);
86 static int xstat_mtime_dir(struct stat *st)
88 if (stat(mtime_dir.buf, st))
89 die_errno(_("failed to stat %s"), mtime_dir.buf);
93 static int create_file(const char *path)
96 path = get_mtime_path(path);
97 fd = open(path, O_CREAT | O_RDWR, 0644);
99 die_errno(_("failed to create file %s"), path);
103 static void xunlink(const char *path)
105 path = get_mtime_path(path);
107 die_errno(_("failed to delete file %s"), path);
110 static void xrmdir(const char *path)
112 path = get_mtime_path(path);
114 die_errno(_("failed to delete directory %s"), path);
117 static void avoid_racy(void)
120 * not use if we could usleep(10) if USE_NSEC is defined. The
121 * field nsec could be there, but the OS could choose to
127 static int test_if_untracked_cache_is_supported(void)
130 struct stat_data base;
134 strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX");
135 if (!mkdtemp(mtime_dir.buf))
136 die_errno("Could not make temporary directory");
139 fprintf(stderr, _("Testing mtime in '%s' "), cwd);
142 atexit(remove_test_directory);
143 xstat_mtime_dir(&st);
144 fill_stat_data(&base, &st);
148 fd = create_file("newfile");
149 xstat_mtime_dir(&st);
150 if (!match_stat_data(&base, &st)) {
153 fprintf_ln(stderr,_("directory stat info does not "
154 "change after adding a new file"));
157 fill_stat_data(&base, &st);
162 xstat_mtime_dir(&st);
163 if (!match_stat_data(&base, &st)) {
166 fprintf_ln(stderr, _("directory stat info does not change "
167 "after adding a new directory"));
170 fill_stat_data(&base, &st);
174 write_or_die(fd, "data", 4);
176 xstat_mtime_dir(&st);
177 if (match_stat_data(&base, &st)) {
179 fprintf_ln(stderr, _("directory stat info changes "
180 "after updating a file"));
186 close(create_file("new-dir/new"));
187 xstat_mtime_dir(&st);
188 if (match_stat_data(&base, &st)) {
190 fprintf_ln(stderr, _("directory stat info changes after "
191 "adding a file inside subdirectory"));
198 xstat_mtime_dir(&st);
199 if (!match_stat_data(&base, &st)) {
201 fprintf_ln(stderr, _("directory stat info does not "
202 "change after deleting a file"));
205 fill_stat_data(&base, &st);
209 xunlink("new-dir/new");
211 xstat_mtime_dir(&st);
212 if (!match_stat_data(&base, &st)) {
214 fprintf_ln(stderr, _("directory stat info does not "
215 "change after deleting a directory"));
219 if (rmdir(mtime_dir.buf))
220 die_errno(_("failed to delete directory %s"), mtime_dir.buf);
221 fprintf_ln(stderr, _(" OK"));
225 strbuf_release(&mtime_dir);
229 static int mark_ce_flags(const char *path, int flag, int mark)
231 int namelen = strlen(path);
232 int pos = cache_name_pos(path, namelen);
234 mark_fsmonitor_invalid(&the_index, active_cache[pos]);
236 active_cache[pos]->ce_flags |= flag;
238 active_cache[pos]->ce_flags &= ~flag;
239 active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
240 cache_tree_invalidate_path(&the_index, path);
241 active_cache_changed |= CE_ENTRY_CHANGED;
247 static int remove_one_path(const char *path)
250 return error("%s: does not exist and --remove not passed", path);
251 if (remove_file_from_cache(path))
252 return error("%s: cannot remove from the index", path);
257 * Handle a path that couldn't be lstat'ed. It's either:
258 * - missing file (ENOENT or ENOTDIR). That's ok if we're
259 * supposed to be removing it and the removal actually
261 * - permission error. That's never ok.
263 static int process_lstat_error(const char *path, int err)
265 if (is_missing_file_error(err))
266 return remove_one_path(path);
267 return error("lstat(\"%s\"): %s", path, strerror(err));
270 static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
273 struct cache_entry *ce;
275 /* Was the old index entry already up-to-date? */
276 if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
279 ce = make_empty_cache_entry(&the_index, len);
280 memcpy(ce->name, path, len);
281 ce->ce_flags = create_ce_flags(0);
282 ce->ce_namelen = len;
283 fill_stat_cache_info(&the_index, ce, st);
284 ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
286 if (index_path(&the_index, &ce->oid, path, st,
287 info_only ? 0 : HASH_WRITE_OBJECT)) {
288 discard_cache_entry(ce);
291 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
292 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
293 if (add_cache_entry(ce, option)) {
294 discard_cache_entry(ce);
295 return error("%s: cannot add to the index - missing --add option?", path);
301 * Handle a path that was a directory. Four cases:
303 * - it's already a gitlink in the index, and we keep it that
304 * way, and update it if we can (if we cannot find the HEAD,
305 * we're going to keep it unchanged in the index!)
307 * - it's a *file* in the index, in which case it should be
308 * removed as a file if removal is allowed, since it doesn't
309 * exist as such any more. If removal isn't allowed, it's
312 * (NOTE! This is old and arguably fairly strange behaviour.
313 * We might want to make this an error unconditionally, and
314 * use "--force-remove" if you actually want to force removal).
316 * - it used to exist as a subdirectory (ie multiple files with
317 * this particular prefix) in the index, in which case it's wrong
318 * to try to update it as a directory.
320 * - it doesn't exist at all in the index, but it is a valid
321 * git directory, and it should be *added* as a gitlink.
323 static int process_directory(const char *path, int len, struct stat *st)
325 struct object_id oid;
326 int pos = cache_name_pos(path, len);
328 /* Exact match: file or existing gitlink */
330 const struct cache_entry *ce = active_cache[pos];
331 if (S_ISGITLINK(ce->ce_mode)) {
333 /* Do nothing to the index if there is no HEAD! */
334 if (resolve_gitlink_ref(path, "HEAD", &oid) < 0)
337 return add_one_path(ce, path, len, st);
339 /* Should this be an unconditional error? */
340 return remove_one_path(path);
343 /* Inexact match: is there perhaps a subdirectory match? */
345 while (pos < active_nr) {
346 const struct cache_entry *ce = active_cache[pos++];
348 if (strncmp(ce->name, path, len))
350 if (ce->name[len] > '/')
352 if (ce->name[len] < '/')
355 /* Subdirectory match - error out */
356 return error("%s: is a directory - add individual files instead", path);
359 /* No match - should we add it as a gitlink? */
360 if (!resolve_gitlink_ref(path, "HEAD", &oid))
361 return add_one_path(NULL, path, len, st);
364 return error("%s: is a directory - add files inside instead", path);
367 static int process_path(const char *path, struct stat *st, int stat_errno)
370 const struct cache_entry *ce;
373 if (has_symlink_leading_path(path, len))
374 return error("'%s' is beyond a symbolic link", path);
376 pos = cache_name_pos(path, len);
377 ce = pos < 0 ? NULL : active_cache[pos];
378 if (ce && ce_skip_worktree(ce)) {
380 * working directory version is assumed "good"
381 * so updating it does not make sense.
382 * On the other hand, removing it from index should work
384 if (allow_remove && remove_file_from_cache(path))
385 return error("%s: cannot remove from the index", path);
390 * First things first: get the stat information, to decide
391 * what to do about the pathname!
394 return process_lstat_error(path, stat_errno);
396 if (S_ISDIR(st->st_mode))
397 return process_directory(path, len, st);
399 return add_one_path(ce, path, len, st);
402 static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
403 const char *path, int stage)
406 struct cache_entry *ce;
408 if (!verify_path(path, mode))
409 return error("Invalid path '%s'", path);
412 ce = make_empty_cache_entry(&the_index, len);
414 oidcpy(&ce->oid, oid);
415 memcpy(ce->name, path, len);
416 ce->ce_flags = create_ce_flags(stage);
417 ce->ce_namelen = len;
418 ce->ce_mode = create_ce_mode(mode);
419 if (assume_unchanged)
420 ce->ce_flags |= CE_VALID;
421 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
422 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
423 if (add_cache_entry(ce, option))
424 return error("%s: cannot add to the index - missing --add option?",
426 report("add '%s'", path);
430 static void chmod_path(char flip, const char *path)
433 struct cache_entry *ce;
435 pos = cache_name_pos(path, strlen(path));
438 ce = active_cache[pos];
439 if (chmod_cache_entry(ce, flip) < 0)
442 report("chmod %cx '%s'", flip, path);
445 die("git update-index: cannot chmod %cx '%s'", flip, path);
448 static void update_one(const char *path)
453 if (mark_valid_only || mark_skip_worktree_only || force_remove ||
456 else if (lstat(path, &st) < 0) {
459 } /* else stat is valid */
461 if (!verify_path(path, st.st_mode)) {
462 fprintf(stderr, "Ignoring path %s\n", path);
465 if (mark_valid_only) {
466 if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG))
467 die("Unable to mark file %s", path);
470 if (mark_skip_worktree_only) {
471 if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG))
472 die("Unable to mark file %s", path);
475 if (mark_fsmonitor_only) {
476 if (mark_ce_flags(path, CE_FSMONITOR_VALID, mark_fsmonitor_only == MARK_FLAG))
477 die("Unable to mark file %s", path);
482 if (remove_file_from_cache(path))
483 die("git update-index: unable to remove %s", path);
484 report("remove '%s'", path);
487 if (process_path(path, &st, stat_errno))
488 die("Unable to process path %s", path);
489 report("add '%s'", path);
492 static void read_index_info(int nul_term_line)
494 const int hexsz = the_hash_algo->hexsz;
495 struct strbuf buf = STRBUF_INIT;
496 struct strbuf uq = STRBUF_INIT;
497 strbuf_getline_fn getline_fn;
499 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
500 while (getline_fn(&buf, stdin) != EOF) {
503 struct object_id oid;
508 /* This reads lines formatted in one of three formats:
510 * (1) mode SP sha1 TAB path
511 * The first format is what "git apply --index-info"
512 * reports, and used to reconstruct a partial tree
513 * that is used for phony merge base tree when falling
514 * back on 3-way merge.
516 * (2) mode SP type SP sha1 TAB path
517 * The second format is to stuff "git ls-tree" output
518 * into the index file.
520 * (3) mode SP sha1 SP stage TAB path
521 * This format is to put higher order stages into the
522 * index file and matches "git ls-files --stage" output.
525 ul = strtoul(buf.buf, &ptr, 8);
526 if (ptr == buf.buf || *ptr != ' '
527 || errno || (unsigned int) ul != ul)
531 tab = strchr(ptr, '\t');
532 if (!tab || tab - ptr < hexsz + 1)
535 if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') {
536 stage = tab[-1] - '0';
537 ptr = tab + 1; /* point at the head of path */
538 tab = tab - 2; /* point at tail of sha1 */
542 ptr = tab + 1; /* point at the head of path */
545 if (get_oid_hex(tab - hexsz, &oid) ||
546 tab[-(hexsz + 1)] != ' ')
550 if (!nul_term_line && path_name[0] == '"') {
552 if (unquote_c_style(&uq, path_name, NULL)) {
553 die("git update-index: bad quoting of path name");
558 if (!verify_path(path_name, mode)) {
559 fprintf(stderr, "Ignoring path %s\n", path_name);
564 /* mode == 0 means there is no such path -- remove */
565 if (remove_file_from_cache(path_name))
566 die("git update-index: unable to remove %s",
570 /* mode ' ' sha1 '\t' name
571 * ptr[-1] points at tab,
572 * ptr[-41] is at the beginning of sha1
574 ptr[-(hexsz + 2)] = ptr[-1] = 0;
575 if (add_cacheinfo(mode, &oid, path_name, stage))
576 die("git update-index: unable to update %s",
582 die("malformed index info %s", buf.buf);
584 strbuf_release(&buf);
588 static const char * const update_index_usage[] = {
589 N_("git update-index [<options>] [--] [<file>...]"),
593 static struct object_id head_oid;
594 static struct object_id merge_head_oid;
596 static struct cache_entry *read_one_ent(const char *which,
597 struct object_id *ent, const char *path,
598 int namelen, int stage)
601 struct object_id oid;
602 struct cache_entry *ce;
604 if (get_tree_entry(ent, path, &oid, &mode)) {
606 error("%s: not in %s branch.", path, which);
609 if (mode == S_IFDIR) {
611 error("%s: not a blob in %s branch.", path, which);
614 ce = make_empty_cache_entry(&the_index, namelen);
616 oidcpy(&ce->oid, &oid);
617 memcpy(ce->name, path, namelen);
618 ce->ce_flags = create_ce_flags(stage);
619 ce->ce_namelen = namelen;
620 ce->ce_mode = create_ce_mode(mode);
624 static int unresolve_one(const char *path)
626 int namelen = strlen(path);
629 struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
631 /* See if there is such entry in the index. */
632 pos = cache_name_pos(path, namelen);
635 pos = unmerge_cache_entry_at(pos);
636 if (pos < active_nr) {
637 const struct cache_entry *ce = active_cache[pos];
639 ce_namelen(ce) == namelen &&
640 !memcmp(ce->name, path, namelen))
643 /* no resolve-undo information; fall back */
645 /* If there isn't, either it is unmerged, or
646 * resolved as "removed" by mistake. We do not
647 * want to do anything in the former case.
650 if (pos < active_nr) {
651 const struct cache_entry *ce = active_cache[pos];
652 if (ce_namelen(ce) == namelen &&
653 !memcmp(ce->name, path, namelen)) {
655 "%s: skipping still unmerged path.\n",
662 /* Grab blobs from given path from HEAD and MERGE_HEAD,
663 * stuff HEAD version in stage #2,
664 * stuff MERGE_HEAD version in stage #3.
666 ce_2 = read_one_ent("our", &head_oid, path, namelen, 2);
667 ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3);
669 if (!ce_2 || !ce_3) {
673 if (oideq(&ce_2->oid, &ce_3->oid) &&
674 ce_2->ce_mode == ce_3->ce_mode) {
675 fprintf(stderr, "%s: identical in both, skipping.\n",
680 remove_file_from_cache(path);
681 if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
682 error("%s: cannot add our version to the index.", path);
686 if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
688 error("%s: cannot add their version to the index.", path);
691 discard_cache_entry(ce_2);
692 discard_cache_entry(ce_3);
696 static void read_head_pointers(void)
698 if (read_ref("HEAD", &head_oid))
699 die("No HEAD -- no initial commit yet?");
700 if (read_ref("MERGE_HEAD", &merge_head_oid)) {
701 fprintf(stderr, "Not in the middle of a merge.\n");
706 static int do_unresolve(int ac, const char **av,
707 const char *prefix, int prefix_length)
712 /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
713 * are not doing a merge, so exit with success status.
715 read_head_pointers();
717 for (i = 1; i < ac; i++) {
718 const char *arg = av[i];
719 char *p = prefix_path(prefix, prefix_length, arg);
720 err |= unresolve_one(p);
726 static int do_reupdate(int ac, const char **av,
729 /* Read HEAD and run update-index on paths that are
730 * merged and already different between index and HEAD.
734 struct pathspec pathspec;
736 parse_pathspec(&pathspec, 0,
740 if (read_ref("HEAD", &head_oid))
741 /* If there is no HEAD, that means it is an initial
742 * commit. Update everything in the index.
746 for (pos = 0; pos < active_nr; pos++) {
747 const struct cache_entry *ce = active_cache[pos];
748 struct cache_entry *old = NULL;
752 if (ce_stage(ce) || !ce_path_match(&the_index, ce, &pathspec, NULL))
755 old = read_one_ent(NULL, &head_oid,
756 ce->name, ce_namelen(ce), 0);
757 if (old && ce->ce_mode == old->ce_mode &&
758 oideq(&ce->oid, &old->oid)) {
759 discard_cache_entry(old);
760 continue; /* unchanged */
762 /* Be careful. The working tree may not have the
763 * path anymore, in which case, under 'allow_remove',
764 * or worse yet 'allow_replace', active_nr may decrease.
767 path = xstrdup(ce->name);
770 discard_cache_entry(old);
771 if (save_nr != active_nr)
774 clear_pathspec(&pathspec);
778 struct refresh_params {
783 static int refresh(struct refresh_params *o, unsigned int flag)
787 *o->has_errors |= refresh_cache(o->flags | flag);
791 static int refresh_callback(const struct option *opt,
792 const char *arg, int unset)
794 BUG_ON_OPT_NEG(unset);
796 return refresh(opt->value, 0);
799 static int really_refresh_callback(const struct option *opt,
800 const char *arg, int unset)
802 BUG_ON_OPT_NEG(unset);
804 return refresh(opt->value, REFRESH_REALLY);
807 static int chmod_callback(const struct option *opt,
808 const char *arg, int unset)
810 char *flip = opt->value;
811 BUG_ON_OPT_NEG(unset);
812 if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2])
813 return error("option 'chmod' expects \"+x\" or \"-x\"");
818 static int resolve_undo_clear_callback(const struct option *opt,
819 const char *arg, int unset)
821 BUG_ON_OPT_NEG(unset);
823 resolve_undo_clear();
827 static int parse_new_style_cacheinfo(const char *arg,
829 struct object_id *oid,
840 ul = strtoul(arg, &endp, 8);
841 if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
842 return -1; /* not a new-style cacheinfo */
845 if (parse_oid_hex(endp, oid, &p) || *p != ',')
851 static enum parse_opt_result cacheinfo_callback(
852 struct parse_opt_ctx_t *ctx, const struct option *opt,
853 const char *arg, int unset)
855 struct object_id oid;
859 BUG_ON_OPT_NEG(unset);
862 if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
863 if (add_cacheinfo(mode, &oid, path, 0))
864 die("git update-index: --cacheinfo cannot add %s", path);
870 return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
871 if (strtoul_ui(*++ctx->argv, 8, &mode) ||
872 get_oid_hex(*++ctx->argv, &oid) ||
873 add_cacheinfo(mode, &oid, *++ctx->argv, 0))
874 die("git update-index: --cacheinfo cannot add %s", *ctx->argv);
879 static enum parse_opt_result stdin_cacheinfo_callback(
880 struct parse_opt_ctx_t *ctx, const struct option *opt,
881 const char *arg, int unset)
883 int *nul_term_line = opt->value;
885 BUG_ON_OPT_NEG(unset);
889 return error("option '%s' must be the last argument", opt->long_name);
890 allow_add = allow_replace = allow_remove = 1;
891 read_index_info(*nul_term_line);
895 static enum parse_opt_result stdin_callback(
896 struct parse_opt_ctx_t *ctx, const struct option *opt,
897 const char *arg, int unset)
899 int *read_from_stdin = opt->value;
901 BUG_ON_OPT_NEG(unset);
905 return error("option '%s' must be the last argument", opt->long_name);
906 *read_from_stdin = 1;
910 static enum parse_opt_result unresolve_callback(
911 struct parse_opt_ctx_t *ctx, const struct option *opt,
912 const char *arg, int unset)
914 int *has_errors = opt->value;
915 const char *prefix = startup_info->prefix;
917 BUG_ON_OPT_NEG(unset);
920 /* consume remaining arguments. */
921 *has_errors = do_unresolve(ctx->argc, ctx->argv,
922 prefix, prefix ? strlen(prefix) : 0);
924 active_cache_changed = 0;
926 ctx->argv += ctx->argc - 1;
931 static enum parse_opt_result reupdate_callback(
932 struct parse_opt_ctx_t *ctx, const struct option *opt,
933 const char *arg, int unset)
935 int *has_errors = opt->value;
936 const char *prefix = startup_info->prefix;
938 BUG_ON_OPT_NEG(unset);
941 /* consume remaining arguments. */
943 *has_errors = do_reupdate(ctx->argc, ctx->argv, prefix);
945 active_cache_changed = 0;
947 ctx->argv += ctx->argc - 1;
952 int cmd_update_index(int argc, const char **argv, const char *prefix)
954 int newfd, entries, has_errors = 0, nul_term_line = 0;
955 enum uc_mode untracked_cache = UC_UNSPECIFIED;
956 int read_from_stdin = 0;
957 int prefix_length = prefix ? strlen(prefix) : 0;
958 int preferred_index_format = 0;
959 char set_executable_bit = 0;
960 struct refresh_params refresh_args = {0, &has_errors};
962 int split_index = -1;
965 struct lock_file lock_file = LOCK_INIT;
966 struct parse_opt_ctx_t ctx;
967 strbuf_getline_fn getline_fn;
968 int parseopt_state = PARSE_OPT_UNKNOWN;
969 struct option options[] = {
970 OPT_BIT('q', NULL, &refresh_args.flags,
971 N_("continue refresh even when index needs update"),
973 OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
974 N_("refresh: ignore submodules"),
975 REFRESH_IGNORE_SUBMODULES),
976 OPT_SET_INT(0, "add", &allow_add,
977 N_("do not ignore new files"), 1),
978 OPT_SET_INT(0, "replace", &allow_replace,
979 N_("let files replace directories and vice-versa"), 1),
980 OPT_SET_INT(0, "remove", &allow_remove,
981 N_("notice files missing from worktree"), 1),
982 OPT_BIT(0, "unmerged", &refresh_args.flags,
983 N_("refresh even if index contains unmerged entries"),
985 {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
986 N_("refresh stat information"),
987 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
989 {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
990 N_("like --refresh, but ignore assume-unchanged setting"),
991 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
992 really_refresh_callback},
993 {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
994 N_("<mode>,<object>,<path>"),
995 N_("add the specified entry to the index"),
996 PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
997 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
1000 {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, "(+|-)x",
1001 N_("override the executable bit of the listed files"),
1004 {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
1005 N_("mark files as \"not changing\""),
1006 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
1007 {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
1008 N_("clear assumed-unchanged bit"),
1009 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
1010 {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
1011 N_("mark files as \"index-only\""),
1012 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
1013 {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
1014 N_("clear skip-worktree bit"),
1015 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
1016 OPT_SET_INT(0, "info-only", &info_only,
1017 N_("add to index only; do not add content to object database"), 1),
1018 OPT_SET_INT(0, "force-remove", &force_remove,
1019 N_("remove named paths even if present in worktree"), 1),
1020 OPT_BOOL('z', NULL, &nul_term_line,
1021 N_("with --stdin: input lines are terminated by null bytes")),
1022 {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
1023 N_("read list of paths to be updated from standard input"),
1024 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1025 NULL, 0, stdin_callback},
1026 {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
1027 N_("add entries from standard input to the index"),
1028 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1029 NULL, 0, stdin_cacheinfo_callback},
1030 {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
1031 N_("repopulate stages #2 and #3 for the listed paths"),
1032 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1033 NULL, 0, unresolve_callback},
1034 {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
1035 N_("only update entries that differ from HEAD"),
1036 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1037 NULL, 0, reupdate_callback},
1038 OPT_BIT(0, "ignore-missing", &refresh_args.flags,
1039 N_("ignore files missing from worktree"),
1040 REFRESH_IGNORE_MISSING),
1041 OPT_SET_INT(0, "verbose", &verbose,
1042 N_("report actions to standard output"), 1),
1043 {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
1044 N_("(for porcelains) forget saved unresolved conflicts"),
1045 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
1046 resolve_undo_clear_callback},
1047 OPT_INTEGER(0, "index-version", &preferred_index_format,
1048 N_("write index in this format")),
1049 OPT_BOOL(0, "split-index", &split_index,
1050 N_("enable or disable split index")),
1051 OPT_BOOL(0, "untracked-cache", &untracked_cache,
1052 N_("enable/disable untracked cache")),
1053 OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
1054 N_("test if the filesystem supports untracked cache"), UC_TEST),
1055 OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
1056 N_("enable untracked cache without testing the filesystem"), UC_FORCE),
1057 OPT_SET_INT(0, "force-write-index", &force_write,
1058 N_("write out the index even if is not flagged as changed"), 1),
1059 OPT_BOOL(0, "fsmonitor", &fsmonitor,
1060 N_("enable or disable file system monitor")),
1061 {OPTION_SET_INT, 0, "fsmonitor-valid", &mark_fsmonitor_only, NULL,
1062 N_("mark files as fsmonitor valid"),
1063 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
1064 {OPTION_SET_INT, 0, "no-fsmonitor-valid", &mark_fsmonitor_only, NULL,
1065 N_("clear fsmonitor valid bit"),
1066 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
1070 if (argc == 2 && !strcmp(argv[1], "-h"))
1071 usage_with_options(update_index_usage, options);
1073 git_config(git_default_config, NULL);
1075 /* we will diagnose later if it turns out that we need to update it */
1076 newfd = hold_locked_index(&lock_file, 0);
1080 entries = read_cache();
1082 die("cache corrupted");
1084 the_index.updated_skipworktree = 1;
1087 * Custom copy of parse_options() because we want to handle
1088 * filename arguments as they come.
1090 parse_options_start(&ctx, argc, argv, prefix,
1091 options, PARSE_OPT_STOP_AT_NON_OPTION);
1093 if (parseopt_state != PARSE_OPT_DONE)
1094 parseopt_state = parse_options_step(&ctx, options,
1095 update_index_usage);
1098 switch (parseopt_state) {
1099 case PARSE_OPT_HELP:
1100 case PARSE_OPT_ERROR:
1102 case PARSE_OPT_COMPLETE:
1104 case PARSE_OPT_NON_OPTION:
1105 case PARSE_OPT_DONE:
1107 const char *path = ctx.argv[0];
1111 p = prefix_path(prefix, prefix_length, path);
1113 if (set_executable_bit)
1114 chmod_path(set_executable_bit, p);
1120 case PARSE_OPT_UNKNOWN:
1121 if (ctx.argv[0][1] == '-')
1122 error("unknown option '%s'", ctx.argv[0] + 2);
1124 error("unknown switch '%c'", *ctx.opt);
1125 usage_with_options(update_index_usage, options);
1128 argc = parse_options_end(&ctx);
1130 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
1131 if (preferred_index_format) {
1132 if (preferred_index_format < INDEX_FORMAT_LB ||
1133 INDEX_FORMAT_UB < preferred_index_format)
1134 die("index-version %d not in range: %d..%d",
1135 preferred_index_format,
1136 INDEX_FORMAT_LB, INDEX_FORMAT_UB);
1138 if (the_index.version != preferred_index_format)
1139 active_cache_changed |= SOMETHING_CHANGED;
1140 the_index.version = preferred_index_format;
1143 if (read_from_stdin) {
1144 struct strbuf buf = STRBUF_INIT;
1145 struct strbuf unquoted = STRBUF_INIT;
1148 while (getline_fn(&buf, stdin) != EOF) {
1150 if (!nul_term_line && buf.buf[0] == '"') {
1151 strbuf_reset(&unquoted);
1152 if (unquote_c_style(&unquoted, buf.buf, NULL))
1153 die("line is badly quoted");
1154 strbuf_swap(&buf, &unquoted);
1156 p = prefix_path(prefix, prefix_length, buf.buf);
1158 if (set_executable_bit)
1159 chmod_path(set_executable_bit, p);
1162 strbuf_release(&unquoted);
1163 strbuf_release(&buf);
1166 if (split_index > 0) {
1167 if (git_config_get_split_index() == 0)
1168 warning(_("core.splitIndex is set to false; "
1169 "remove or change it, if you really want to "
1170 "enable split index"));
1171 if (the_index.split_index)
1172 the_index.cache_changed |= SPLIT_INDEX_ORDERED;
1174 add_split_index(&the_index);
1175 } else if (!split_index) {
1176 if (git_config_get_split_index() == 1)
1177 warning(_("core.splitIndex is set to true; "
1178 "remove or change it, if you really want to "
1179 "disable split index"));
1180 remove_split_index(&the_index);
1183 switch (untracked_cache) {
1184 case UC_UNSPECIFIED:
1187 if (git_config_get_untracked_cache() == 1)
1188 warning(_("core.untrackedCache is set to true; "
1189 "remove or change it, if you really want to "
1190 "disable the untracked cache"));
1191 remove_untracked_cache(&the_index);
1192 report(_("Untracked cache disabled"));
1196 return !test_if_untracked_cache_is_supported();
1199 if (git_config_get_untracked_cache() == 0)
1200 warning(_("core.untrackedCache is set to false; "
1201 "remove or change it, if you really want to "
1202 "enable the untracked cache"));
1203 add_untracked_cache(&the_index);
1204 report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
1207 BUG("bad untracked_cache value: %d", untracked_cache);
1210 if (fsmonitor > 0) {
1211 if (git_config_get_fsmonitor() == 0)
1212 warning(_("core.fsmonitor is unset; "
1213 "set it if you really want to "
1214 "enable fsmonitor"));
1215 add_fsmonitor(&the_index);
1216 report(_("fsmonitor enabled"));
1217 } else if (!fsmonitor) {
1218 if (git_config_get_fsmonitor() == 1)
1219 warning(_("core.fsmonitor is set; "
1220 "remove it if you really want to "
1221 "disable fsmonitor"));
1222 remove_fsmonitor(&the_index);
1223 report(_("fsmonitor disabled"));
1226 if (active_cache_changed || force_write) {
1228 if (refresh_args.flags & REFRESH_QUIET)
1230 unable_to_lock_die(get_index_file(), lock_error);
1232 if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
1233 die("Unable to write new index file");
1236 rollback_lock_file(&lock_file);
1238 return has_errors ? 1 : 0;