2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
9 #include "cache-tree.h"
10 #include "tree-walk.h"
13 #include "resolve-undo.h"
14 #include "parse-options.h"
17 #include "split-index.h"
20 * Default to not allowing changes to the list of files. The
21 * tool doesn't actually care, but this makes it harder to add
22 * files to the revision control by mistake by doing something
23 * like "git update-index *" and suddenly having all the object
24 * files be revision controlled.
27 static int allow_remove;
28 static int allow_replace;
30 static int force_remove;
32 static int mark_valid_only;
33 static int mark_skip_worktree_only;
36 static struct strbuf mtime_dir = STRBUF_INIT;
38 /* Untracked cache mode */
47 __attribute__((format (printf, 1, 2)))
48 static void report(const char *fmt, ...)
61 static void remove_test_directory(void)
64 remove_dir_recursively(&mtime_dir, 0);
67 static const char *get_mtime_path(const char *path)
69 static struct strbuf sb = STRBUF_INIT;
71 strbuf_addf(&sb, "%s/%s", mtime_dir.buf, path);
75 static void xmkdir(const char *path)
77 path = get_mtime_path(path);
78 if (mkdir(path, 0700))
79 die_errno(_("failed to create directory %s"), path);
82 static int xstat_mtime_dir(struct stat *st)
84 if (stat(mtime_dir.buf, st))
85 die_errno(_("failed to stat %s"), mtime_dir.buf);
89 static int create_file(const char *path)
92 path = get_mtime_path(path);
93 fd = open(path, O_CREAT | O_RDWR, 0644);
95 die_errno(_("failed to create file %s"), path);
99 static void xunlink(const char *path)
101 path = get_mtime_path(path);
103 die_errno(_("failed to delete file %s"), path);
106 static void xrmdir(const char *path)
108 path = get_mtime_path(path);
110 die_errno(_("failed to delete directory %s"), path);
113 static void avoid_racy(void)
116 * not use if we could usleep(10) if USE_NSEC is defined. The
117 * field nsec could be there, but the OS could choose to
123 static int test_if_untracked_cache_is_supported(void)
126 struct stat_data base;
130 strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX");
131 if (!mkdtemp(mtime_dir.buf))
132 die_errno("Could not make temporary directory");
135 fprintf(stderr, _("Testing mtime in '%s' "), cwd);
138 atexit(remove_test_directory);
139 xstat_mtime_dir(&st);
140 fill_stat_data(&base, &st);
144 fd = create_file("newfile");
145 xstat_mtime_dir(&st);
146 if (!match_stat_data(&base, &st)) {
149 fprintf_ln(stderr,_("directory stat info does not "
150 "change after adding a new file"));
153 fill_stat_data(&base, &st);
158 xstat_mtime_dir(&st);
159 if (!match_stat_data(&base, &st)) {
162 fprintf_ln(stderr, _("directory stat info does not change "
163 "after adding a new directory"));
166 fill_stat_data(&base, &st);
170 write_or_die(fd, "data", 4);
172 xstat_mtime_dir(&st);
173 if (match_stat_data(&base, &st)) {
175 fprintf_ln(stderr, _("directory stat info changes "
176 "after updating a file"));
182 close(create_file("new-dir/new"));
183 xstat_mtime_dir(&st);
184 if (match_stat_data(&base, &st)) {
186 fprintf_ln(stderr, _("directory stat info changes after "
187 "adding a file inside subdirectory"));
194 xstat_mtime_dir(&st);
195 if (!match_stat_data(&base, &st)) {
197 fprintf_ln(stderr, _("directory stat info does not "
198 "change after deleting a file"));
201 fill_stat_data(&base, &st);
205 xunlink("new-dir/new");
207 xstat_mtime_dir(&st);
208 if (!match_stat_data(&base, &st)) {
210 fprintf_ln(stderr, _("directory stat info does not "
211 "change after deleting a directory"));
215 if (rmdir(mtime_dir.buf))
216 die_errno(_("failed to delete directory %s"), mtime_dir.buf);
217 fprintf_ln(stderr, _(" OK"));
221 strbuf_release(&mtime_dir);
225 static int mark_ce_flags(const char *path, int flag, int mark)
227 int namelen = strlen(path);
228 int pos = cache_name_pos(path, namelen);
231 active_cache[pos]->ce_flags |= flag;
233 active_cache[pos]->ce_flags &= ~flag;
234 active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
235 cache_tree_invalidate_path(&the_index, path);
236 active_cache_changed |= CE_ENTRY_CHANGED;
242 static int remove_one_path(const char *path)
245 return error("%s: does not exist and --remove not passed", path);
246 if (remove_file_from_cache(path))
247 return error("%s: cannot remove from the index", path);
252 * Handle a path that couldn't be lstat'ed. It's either:
253 * - missing file (ENOENT or ENOTDIR). That's ok if we're
254 * supposed to be removing it and the removal actually
256 * - permission error. That's never ok.
258 static int process_lstat_error(const char *path, int err)
260 if (is_missing_file_error(err))
261 return remove_one_path(path);
262 return error("lstat(\"%s\"): %s", path, strerror(err));
265 static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
268 struct cache_entry *ce;
270 /* Was the old index entry already up-to-date? */
271 if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
274 size = cache_entry_size(len);
275 ce = xcalloc(1, size);
276 memcpy(ce->name, path, len);
277 ce->ce_flags = create_ce_flags(0);
278 ce->ce_namelen = len;
279 fill_stat_cache_info(ce, st);
280 ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
282 if (index_path(ce->oid.hash, path, st,
283 info_only ? 0 : HASH_WRITE_OBJECT)) {
287 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
288 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
289 if (add_cache_entry(ce, option))
290 return error("%s: cannot add to the index - missing --add option?", path);
295 * Handle a path that was a directory. Four cases:
297 * - it's already a gitlink in the index, and we keep it that
298 * way, and update it if we can (if we cannot find the HEAD,
299 * we're going to keep it unchanged in the index!)
301 * - it's a *file* in the index, in which case it should be
302 * removed as a file if removal is allowed, since it doesn't
303 * exist as such any more. If removal isn't allowed, it's
306 * (NOTE! This is old and arguably fairly strange behaviour.
307 * We might want to make this an error unconditionally, and
308 * use "--force-remove" if you actually want to force removal).
310 * - it used to exist as a subdirectory (ie multiple files with
311 * this particular prefix) in the index, in which case it's wrong
312 * to try to update it as a directory.
314 * - it doesn't exist at all in the index, but it is a valid
315 * git directory, and it should be *added* as a gitlink.
317 static int process_directory(const char *path, int len, struct stat *st)
319 struct object_id oid;
320 int pos = cache_name_pos(path, len);
322 /* Exact match: file or existing gitlink */
324 const struct cache_entry *ce = active_cache[pos];
325 if (S_ISGITLINK(ce->ce_mode)) {
327 /* Do nothing to the index if there is no HEAD! */
328 if (resolve_gitlink_ref(path, "HEAD", oid.hash) < 0)
331 return add_one_path(ce, path, len, st);
333 /* Should this be an unconditional error? */
334 return remove_one_path(path);
337 /* Inexact match: is there perhaps a subdirectory match? */
339 while (pos < active_nr) {
340 const struct cache_entry *ce = active_cache[pos++];
342 if (strncmp(ce->name, path, len))
344 if (ce->name[len] > '/')
346 if (ce->name[len] < '/')
349 /* Subdirectory match - error out */
350 return error("%s: is a directory - add individual files instead", path);
353 /* No match - should we add it as a gitlink? */
354 if (!resolve_gitlink_ref(path, "HEAD", oid.hash))
355 return add_one_path(NULL, path, len, st);
358 return error("%s: is a directory - add files inside instead", path);
361 static int process_path(const char *path)
365 const struct cache_entry *ce;
368 if (has_symlink_leading_path(path, len))
369 return error("'%s' is beyond a symbolic link", path);
371 pos = cache_name_pos(path, len);
372 ce = pos < 0 ? NULL : active_cache[pos];
373 if (ce && ce_skip_worktree(ce)) {
375 * working directory version is assumed "good"
376 * so updating it does not make sense.
377 * On the other hand, removing it from index should work
379 if (allow_remove && remove_file_from_cache(path))
380 return error("%s: cannot remove from the index", path);
385 * First things first: get the stat information, to decide
386 * what to do about the pathname!
388 if (lstat(path, &st) < 0)
389 return process_lstat_error(path, errno);
391 if (S_ISDIR(st.st_mode))
392 return process_directory(path, len, &st);
394 return add_one_path(ce, path, len, &st);
397 static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
398 const char *path, int stage)
400 int size, len, option;
401 struct cache_entry *ce;
403 if (!verify_path(path))
404 return error("Invalid path '%s'", path);
407 size = cache_entry_size(len);
408 ce = xcalloc(1, size);
410 oidcpy(&ce->oid, oid);
411 memcpy(ce->name, path, len);
412 ce->ce_flags = create_ce_flags(stage);
413 ce->ce_namelen = len;
414 ce->ce_mode = create_ce_mode(mode);
415 if (assume_unchanged)
416 ce->ce_flags |= CE_VALID;
417 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
418 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
419 if (add_cache_entry(ce, option))
420 return error("%s: cannot add to the index - missing --add option?",
422 report("add '%s'", path);
426 static void chmod_path(char flip, const char *path)
429 struct cache_entry *ce;
431 pos = cache_name_pos(path, strlen(path));
434 ce = active_cache[pos];
435 if (chmod_cache_entry(ce, flip) < 0)
438 report("chmod %cx '%s'", flip, path);
441 die("git update-index: cannot chmod %cx '%s'", flip, path);
444 static void update_one(const char *path)
446 if (!verify_path(path)) {
447 fprintf(stderr, "Ignoring path %s\n", path);
450 if (mark_valid_only) {
451 if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG))
452 die("Unable to mark file %s", path);
455 if (mark_skip_worktree_only) {
456 if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG))
457 die("Unable to mark file %s", path);
462 if (remove_file_from_cache(path))
463 die("git update-index: unable to remove %s", path);
464 report("remove '%s'", path);
467 if (process_path(path))
468 die("Unable to process path %s", path);
469 report("add '%s'", path);
472 static void read_index_info(int nul_term_line)
474 struct strbuf buf = STRBUF_INIT;
475 struct strbuf uq = STRBUF_INIT;
476 strbuf_getline_fn getline_fn;
478 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
479 while (getline_fn(&buf, stdin) != EOF) {
482 struct object_id oid;
487 /* This reads lines formatted in one of three formats:
489 * (1) mode SP sha1 TAB path
490 * The first format is what "git apply --index-info"
491 * reports, and used to reconstruct a partial tree
492 * that is used for phony merge base tree when falling
493 * back on 3-way merge.
495 * (2) mode SP type SP sha1 TAB path
496 * The second format is to stuff "git ls-tree" output
497 * into the index file.
499 * (3) mode SP sha1 SP stage TAB path
500 * This format is to put higher order stages into the
501 * index file and matches "git ls-files --stage" output.
504 ul = strtoul(buf.buf, &ptr, 8);
505 if (ptr == buf.buf || *ptr != ' '
506 || errno || (unsigned int) ul != ul)
510 tab = strchr(ptr, '\t');
511 if (!tab || tab - ptr < GIT_SHA1_HEXSZ + 1)
514 if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') {
515 stage = tab[-1] - '0';
516 ptr = tab + 1; /* point at the head of path */
517 tab = tab - 2; /* point at tail of sha1 */
521 ptr = tab + 1; /* point at the head of path */
524 if (get_oid_hex(tab - GIT_SHA1_HEXSZ, &oid) ||
525 tab[-(GIT_SHA1_HEXSZ + 1)] != ' ')
529 if (!nul_term_line && path_name[0] == '"') {
531 if (unquote_c_style(&uq, path_name, NULL)) {
532 die("git update-index: bad quoting of path name");
537 if (!verify_path(path_name)) {
538 fprintf(stderr, "Ignoring path %s\n", path_name);
543 /* mode == 0 means there is no such path -- remove */
544 if (remove_file_from_cache(path_name))
545 die("git update-index: unable to remove %s",
549 /* mode ' ' sha1 '\t' name
550 * ptr[-1] points at tab,
551 * ptr[-41] is at the beginning of sha1
553 ptr[-(GIT_SHA1_HEXSZ + 2)] = ptr[-1] = 0;
554 if (add_cacheinfo(mode, &oid, path_name, stage))
555 die("git update-index: unable to update %s",
561 die("malformed index info %s", buf.buf);
563 strbuf_release(&buf);
567 static const char * const update_index_usage[] = {
568 N_("git update-index [<options>] [--] [<file>...]"),
572 static struct object_id head_oid;
573 static struct object_id merge_head_oid;
575 static struct cache_entry *read_one_ent(const char *which,
576 struct object_id *ent, const char *path,
577 int namelen, int stage)
580 struct object_id oid;
582 struct cache_entry *ce;
584 if (get_tree_entry(ent->hash, path, oid.hash, &mode)) {
586 error("%s: not in %s branch.", path, which);
589 if (mode == S_IFDIR) {
591 error("%s: not a blob in %s branch.", path, which);
594 size = cache_entry_size(namelen);
595 ce = xcalloc(1, size);
597 oidcpy(&ce->oid, &oid);
598 memcpy(ce->name, path, namelen);
599 ce->ce_flags = create_ce_flags(stage);
600 ce->ce_namelen = namelen;
601 ce->ce_mode = create_ce_mode(mode);
605 static int unresolve_one(const char *path)
607 int namelen = strlen(path);
610 struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
612 /* See if there is such entry in the index. */
613 pos = cache_name_pos(path, namelen);
616 pos = unmerge_cache_entry_at(pos);
617 if (pos < active_nr) {
618 const struct cache_entry *ce = active_cache[pos];
620 ce_namelen(ce) == namelen &&
621 !memcmp(ce->name, path, namelen))
624 /* no resolve-undo information; fall back */
626 /* If there isn't, either it is unmerged, or
627 * resolved as "removed" by mistake. We do not
628 * want to do anything in the former case.
631 if (pos < active_nr) {
632 const struct cache_entry *ce = active_cache[pos];
633 if (ce_namelen(ce) == namelen &&
634 !memcmp(ce->name, path, namelen)) {
636 "%s: skipping still unmerged path.\n",
643 /* Grab blobs from given path from HEAD and MERGE_HEAD,
644 * stuff HEAD version in stage #2,
645 * stuff MERGE_HEAD version in stage #3.
647 ce_2 = read_one_ent("our", &head_oid, path, namelen, 2);
648 ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3);
650 if (!ce_2 || !ce_3) {
654 if (!oidcmp(&ce_2->oid, &ce_3->oid) &&
655 ce_2->ce_mode == ce_3->ce_mode) {
656 fprintf(stderr, "%s: identical in both, skipping.\n",
661 remove_file_from_cache(path);
662 if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
663 error("%s: cannot add our version to the index.", path);
667 if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
669 error("%s: cannot add their version to the index.", path);
677 static void read_head_pointers(void)
679 if (read_ref("HEAD", head_oid.hash))
680 die("No HEAD -- no initial commit yet?");
681 if (read_ref("MERGE_HEAD", merge_head_oid.hash)) {
682 fprintf(stderr, "Not in the middle of a merge.\n");
687 static int do_unresolve(int ac, const char **av,
688 const char *prefix, int prefix_length)
693 /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
694 * are not doing a merge, so exit with success status.
696 read_head_pointers();
698 for (i = 1; i < ac; i++) {
699 const char *arg = av[i];
700 char *p = prefix_path(prefix, prefix_length, arg);
701 err |= unresolve_one(p);
707 static int do_reupdate(int ac, const char **av,
708 const char *prefix, int prefix_length)
710 /* Read HEAD and run update-index on paths that are
711 * merged and already different between index and HEAD.
715 struct pathspec pathspec;
717 parse_pathspec(&pathspec, 0,
721 if (read_ref("HEAD", head_oid.hash))
722 /* If there is no HEAD, that means it is an initial
723 * commit. Update everything in the index.
727 for (pos = 0; pos < active_nr; pos++) {
728 const struct cache_entry *ce = active_cache[pos];
729 struct cache_entry *old = NULL;
733 if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL))
736 old = read_one_ent(NULL, &head_oid,
737 ce->name, ce_namelen(ce), 0);
738 if (old && ce->ce_mode == old->ce_mode &&
739 !oidcmp(&ce->oid, &old->oid)) {
741 continue; /* unchanged */
743 /* Be careful. The working tree may not have the
744 * path anymore, in which case, under 'allow_remove',
745 * or worse yet 'allow_replace', active_nr may decrease.
748 path = xstrdup(ce->name);
752 if (save_nr != active_nr)
755 clear_pathspec(&pathspec);
759 struct refresh_params {
764 static int refresh(struct refresh_params *o, unsigned int flag)
767 read_cache_preload(NULL);
768 *o->has_errors |= refresh_cache(o->flags | flag);
772 static int refresh_callback(const struct option *opt,
773 const char *arg, int unset)
775 return refresh(opt->value, 0);
778 static int really_refresh_callback(const struct option *opt,
779 const char *arg, int unset)
781 return refresh(opt->value, REFRESH_REALLY);
784 static int chmod_callback(const struct option *opt,
785 const char *arg, int unset)
787 char *flip = opt->value;
788 if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2])
789 return error("option 'chmod' expects \"+x\" or \"-x\"");
794 static int resolve_undo_clear_callback(const struct option *opt,
795 const char *arg, int unset)
797 resolve_undo_clear();
801 static int parse_new_style_cacheinfo(const char *arg,
803 struct object_id *oid,
813 ul = strtoul(arg, &endp, 8);
814 if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
815 return -1; /* not a new-style cacheinfo */
818 if (get_oid_hex(endp, oid) || endp[GIT_SHA1_HEXSZ] != ',')
820 *path = endp + GIT_SHA1_HEXSZ + 1;
824 static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
825 const struct option *opt, int unset)
827 struct object_id oid;
831 if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
832 if (add_cacheinfo(mode, &oid, path, 0))
833 die("git update-index: --cacheinfo cannot add %s", path);
839 return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
840 if (strtoul_ui(*++ctx->argv, 8, &mode) ||
841 get_oid_hex(*++ctx->argv, &oid) ||
842 add_cacheinfo(mode, &oid, *++ctx->argv, 0))
843 die("git update-index: --cacheinfo cannot add %s", *ctx->argv);
848 static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
849 const struct option *opt, int unset)
851 int *nul_term_line = opt->value;
854 return error("option '%s' must be the last argument", opt->long_name);
855 allow_add = allow_replace = allow_remove = 1;
856 read_index_info(*nul_term_line);
860 static int stdin_callback(struct parse_opt_ctx_t *ctx,
861 const struct option *opt, int unset)
863 int *read_from_stdin = opt->value;
866 return error("option '%s' must be the last argument", opt->long_name);
867 *read_from_stdin = 1;
871 static int unresolve_callback(struct parse_opt_ctx_t *ctx,
872 const struct option *opt, int flags)
874 int *has_errors = opt->value;
875 const char *prefix = startup_info->prefix;
877 /* consume remaining arguments. */
878 *has_errors = do_unresolve(ctx->argc, ctx->argv,
879 prefix, prefix ? strlen(prefix) : 0);
881 active_cache_changed = 0;
883 ctx->argv += ctx->argc - 1;
888 static int reupdate_callback(struct parse_opt_ctx_t *ctx,
889 const struct option *opt, int flags)
891 int *has_errors = opt->value;
892 const char *prefix = startup_info->prefix;
894 /* consume remaining arguments. */
896 *has_errors = do_reupdate(ctx->argc, ctx->argv,
897 prefix, prefix ? strlen(prefix) : 0);
899 active_cache_changed = 0;
901 ctx->argv += ctx->argc - 1;
906 int cmd_update_index(int argc, const char **argv, const char *prefix)
908 int newfd, entries, has_errors = 0, nul_term_line = 0;
909 enum uc_mode untracked_cache = UC_UNSPECIFIED;
910 int read_from_stdin = 0;
911 int prefix_length = prefix ? strlen(prefix) : 0;
912 int preferred_index_format = 0;
913 char set_executable_bit = 0;
914 struct refresh_params refresh_args = {0, &has_errors};
916 int split_index = -1;
917 struct lock_file *lock_file;
918 struct parse_opt_ctx_t ctx;
919 strbuf_getline_fn getline_fn;
920 int parseopt_state = PARSE_OPT_UNKNOWN;
921 struct option options[] = {
922 OPT_BIT('q', NULL, &refresh_args.flags,
923 N_("continue refresh even when index needs update"),
925 OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
926 N_("refresh: ignore submodules"),
927 REFRESH_IGNORE_SUBMODULES),
928 OPT_SET_INT(0, "add", &allow_add,
929 N_("do not ignore new files"), 1),
930 OPT_SET_INT(0, "replace", &allow_replace,
931 N_("let files replace directories and vice-versa"), 1),
932 OPT_SET_INT(0, "remove", &allow_remove,
933 N_("notice files missing from worktree"), 1),
934 OPT_BIT(0, "unmerged", &refresh_args.flags,
935 N_("refresh even if index contains unmerged entries"),
937 {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
938 N_("refresh stat information"),
939 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
941 {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
942 N_("like --refresh, but ignore assume-unchanged setting"),
943 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
944 really_refresh_callback},
945 {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
946 N_("<mode>,<object>,<path>"),
947 N_("add the specified entry to the index"),
948 PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
949 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
950 (parse_opt_cb *) cacheinfo_callback},
951 {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),
952 N_("override the executable bit of the listed files"),
953 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
955 {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
956 N_("mark files as \"not changing\""),
957 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
958 {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
959 N_("clear assumed-unchanged bit"),
960 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
961 {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
962 N_("mark files as \"index-only\""),
963 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
964 {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
965 N_("clear skip-worktree bit"),
966 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
967 OPT_SET_INT(0, "info-only", &info_only,
968 N_("add to index only; do not add content to object database"), 1),
969 OPT_SET_INT(0, "force-remove", &force_remove,
970 N_("remove named paths even if present in worktree"), 1),
971 OPT_BOOL('z', NULL, &nul_term_line,
972 N_("with --stdin: input lines are terminated by null bytes")),
973 {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
974 N_("read list of paths to be updated from standard input"),
975 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
976 (parse_opt_cb *) stdin_callback},
977 {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
978 N_("add entries from standard input to the index"),
979 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
980 (parse_opt_cb *) stdin_cacheinfo_callback},
981 {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
982 N_("repopulate stages #2 and #3 for the listed paths"),
983 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
984 (parse_opt_cb *) unresolve_callback},
985 {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
986 N_("only update entries that differ from HEAD"),
987 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
988 (parse_opt_cb *) reupdate_callback},
989 OPT_BIT(0, "ignore-missing", &refresh_args.flags,
990 N_("ignore files missing from worktree"),
991 REFRESH_IGNORE_MISSING),
992 OPT_SET_INT(0, "verbose", &verbose,
993 N_("report actions to standard output"), 1),
994 {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
995 N_("(for porcelains) forget saved unresolved conflicts"),
996 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
997 resolve_undo_clear_callback},
998 OPT_INTEGER(0, "index-version", &preferred_index_format,
999 N_("write index in this format")),
1000 OPT_BOOL(0, "split-index", &split_index,
1001 N_("enable or disable split index")),
1002 OPT_BOOL(0, "untracked-cache", &untracked_cache,
1003 N_("enable/disable untracked cache")),
1004 OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
1005 N_("test if the filesystem supports untracked cache"), UC_TEST),
1006 OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
1007 N_("enable untracked cache without testing the filesystem"), UC_FORCE),
1011 if (argc == 2 && !strcmp(argv[1], "-h"))
1012 usage_with_options(update_index_usage, options);
1014 git_config(git_default_config, NULL);
1016 /* We can't free this memory, it becomes part of a linked list parsed atexit() */
1017 lock_file = xcalloc(1, sizeof(struct lock_file));
1019 /* we will diagnose later if it turns out that we need to update it */
1020 newfd = hold_locked_index(lock_file, 0);
1024 entries = read_cache();
1026 die("cache corrupted");
1029 * Custom copy of parse_options() because we want to handle
1030 * filename arguments as they come.
1032 parse_options_start(&ctx, argc, argv, prefix,
1033 options, PARSE_OPT_STOP_AT_NON_OPTION);
1035 if (parseopt_state != PARSE_OPT_DONE)
1036 parseopt_state = parse_options_step(&ctx, options,
1037 update_index_usage);
1040 switch (parseopt_state) {
1041 case PARSE_OPT_HELP:
1043 case PARSE_OPT_NON_OPTION:
1044 case PARSE_OPT_DONE:
1046 const char *path = ctx.argv[0];
1050 p = prefix_path(prefix, prefix_length, path);
1052 if (set_executable_bit)
1053 chmod_path(set_executable_bit, p);
1059 case PARSE_OPT_UNKNOWN:
1060 if (ctx.argv[0][1] == '-')
1061 error("unknown option '%s'", ctx.argv[0] + 2);
1063 error("unknown switch '%c'", *ctx.opt);
1064 usage_with_options(update_index_usage, options);
1067 argc = parse_options_end(&ctx);
1069 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
1070 if (preferred_index_format) {
1071 if (preferred_index_format < INDEX_FORMAT_LB ||
1072 INDEX_FORMAT_UB < preferred_index_format)
1073 die("index-version %d not in range: %d..%d",
1074 preferred_index_format,
1075 INDEX_FORMAT_LB, INDEX_FORMAT_UB);
1077 if (the_index.version != preferred_index_format)
1078 active_cache_changed |= SOMETHING_CHANGED;
1079 the_index.version = preferred_index_format;
1082 if (read_from_stdin) {
1083 struct strbuf buf = STRBUF_INIT;
1084 struct strbuf unquoted = STRBUF_INIT;
1087 while (getline_fn(&buf, stdin) != EOF) {
1089 if (!nul_term_line && buf.buf[0] == '"') {
1090 strbuf_reset(&unquoted);
1091 if (unquote_c_style(&unquoted, buf.buf, NULL))
1092 die("line is badly quoted");
1093 strbuf_swap(&buf, &unquoted);
1095 p = prefix_path(prefix, prefix_length, buf.buf);
1097 if (set_executable_bit)
1098 chmod_path(set_executable_bit, p);
1101 strbuf_release(&unquoted);
1102 strbuf_release(&buf);
1105 if (split_index > 0) {
1106 if (git_config_get_split_index() == 0)
1107 warning(_("core.splitIndex is set to false; "
1108 "remove or change it, if you really want to "
1109 "enable split index"));
1110 if (the_index.split_index)
1111 the_index.cache_changed |= SPLIT_INDEX_ORDERED;
1113 add_split_index(&the_index);
1114 } else if (!split_index) {
1115 if (git_config_get_split_index() == 1)
1116 warning(_("core.splitIndex is set to true; "
1117 "remove or change it, if you really want to "
1118 "disable split index"));
1119 remove_split_index(&the_index);
1122 switch (untracked_cache) {
1123 case UC_UNSPECIFIED:
1126 if (git_config_get_untracked_cache() == 1)
1127 warning(_("core.untrackedCache is set to true; "
1128 "remove or change it, if you really want to "
1129 "disable the untracked cache"));
1130 remove_untracked_cache(&the_index);
1131 report(_("Untracked cache disabled"));
1135 return !test_if_untracked_cache_is_supported();
1138 if (git_config_get_untracked_cache() == 0)
1139 warning(_("core.untrackedCache is set to false; "
1140 "remove or change it, if you really want to "
1141 "enable the untracked cache"));
1142 add_untracked_cache(&the_index);
1143 report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
1146 die("BUG: bad untracked_cache value: %d", untracked_cache);
1149 if (active_cache_changed) {
1151 if (refresh_args.flags & REFRESH_QUIET)
1153 unable_to_lock_die(get_index_file(), lock_error);
1155 if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
1156 die("Unable to write new index file");
1159 rollback_lock_file(lock_file);
1161 return has_errors ? 1 : 0;