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"
19 #include "fsmonitor.h"
22 * Default to not allowing changes to the list of files. The
23 * tool doesn't actually care, but this makes it harder to add
24 * files to the revision control by mistake by doing something
25 * like "git update-index *" and suddenly having all the object
26 * files be revision controlled.
29 static int allow_remove;
30 static int allow_replace;
32 static int force_remove;
34 static int mark_valid_only;
35 static int mark_skip_worktree_only;
36 static int mark_fsmonitor_only;
39 static struct strbuf mtime_dir = STRBUF_INIT;
41 /* Untracked cache mode */
50 __attribute__((format (printf, 1, 2)))
51 static void report(const char *fmt, ...)
64 static void remove_test_directory(void)
67 remove_dir_recursively(&mtime_dir, 0);
70 static const char *get_mtime_path(const char *path)
72 static struct strbuf sb = STRBUF_INIT;
74 strbuf_addf(&sb, "%s/%s", mtime_dir.buf, path);
78 static void xmkdir(const char *path)
80 path = get_mtime_path(path);
81 if (mkdir(path, 0700))
82 die_errno(_("failed to create directory %s"), path);
85 static int xstat_mtime_dir(struct stat *st)
87 if (stat(mtime_dir.buf, st))
88 die_errno(_("failed to stat %s"), mtime_dir.buf);
92 static int create_file(const char *path)
95 path = get_mtime_path(path);
96 fd = open(path, O_CREAT | O_RDWR, 0644);
98 die_errno(_("failed to create file %s"), path);
102 static void xunlink(const char *path)
104 path = get_mtime_path(path);
106 die_errno(_("failed to delete file %s"), path);
109 static void xrmdir(const char *path)
111 path = get_mtime_path(path);
113 die_errno(_("failed to delete directory %s"), path);
116 static void avoid_racy(void)
119 * not use if we could usleep(10) if USE_NSEC is defined. The
120 * field nsec could be there, but the OS could choose to
126 static int test_if_untracked_cache_is_supported(void)
129 struct stat_data base;
133 strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX");
134 if (!mkdtemp(mtime_dir.buf))
135 die_errno("Could not make temporary directory");
138 fprintf(stderr, _("Testing mtime in '%s' "), cwd);
141 atexit(remove_test_directory);
142 xstat_mtime_dir(&st);
143 fill_stat_data(&base, &st);
147 fd = create_file("newfile");
148 xstat_mtime_dir(&st);
149 if (!match_stat_data(&base, &st)) {
152 fprintf_ln(stderr,_("directory stat info does not "
153 "change after adding a new file"));
156 fill_stat_data(&base, &st);
161 xstat_mtime_dir(&st);
162 if (!match_stat_data(&base, &st)) {
165 fprintf_ln(stderr, _("directory stat info does not change "
166 "after adding a new directory"));
169 fill_stat_data(&base, &st);
173 write_or_die(fd, "data", 4);
175 xstat_mtime_dir(&st);
176 if (match_stat_data(&base, &st)) {
178 fprintf_ln(stderr, _("directory stat info changes "
179 "after updating a file"));
185 close(create_file("new-dir/new"));
186 xstat_mtime_dir(&st);
187 if (match_stat_data(&base, &st)) {
189 fprintf_ln(stderr, _("directory stat info changes after "
190 "adding a file inside subdirectory"));
197 xstat_mtime_dir(&st);
198 if (!match_stat_data(&base, &st)) {
200 fprintf_ln(stderr, _("directory stat info does not "
201 "change after deleting a file"));
204 fill_stat_data(&base, &st);
208 xunlink("new-dir/new");
210 xstat_mtime_dir(&st);
211 if (!match_stat_data(&base, &st)) {
213 fprintf_ln(stderr, _("directory stat info does not "
214 "change after deleting a directory"));
218 if (rmdir(mtime_dir.buf))
219 die_errno(_("failed to delete directory %s"), mtime_dir.buf);
220 fprintf_ln(stderr, _(" OK"));
224 strbuf_release(&mtime_dir);
228 static int mark_ce_flags(const char *path, int flag, int mark)
230 int namelen = strlen(path);
231 int pos = cache_name_pos(path, namelen);
233 mark_fsmonitor_invalid(&the_index, active_cache[pos]);
235 active_cache[pos]->ce_flags |= flag;
237 active_cache[pos]->ce_flags &= ~flag;
238 active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
239 cache_tree_invalidate_path(&the_index, path);
240 active_cache_changed |= CE_ENTRY_CHANGED;
246 static int remove_one_path(const char *path)
249 return error("%s: does not exist and --remove not passed", path);
250 if (remove_file_from_cache(path))
251 return error("%s: cannot remove from the index", path);
256 * Handle a path that couldn't be lstat'ed. It's either:
257 * - missing file (ENOENT or ENOTDIR). That's ok if we're
258 * supposed to be removing it and the removal actually
260 * - permission error. That's never ok.
262 static int process_lstat_error(const char *path, int err)
264 if (is_missing_file_error(err))
265 return remove_one_path(path);
266 return error("lstat(\"%s\"): %s", path, strerror(err));
269 static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
272 struct cache_entry *ce;
274 /* Was the old index entry already up-to-date? */
275 if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
278 size = cache_entry_size(len);
279 ce = xcalloc(1, size);
280 memcpy(ce->name, path, len);
281 ce->ce_flags = create_ce_flags(0);
282 ce->ce_namelen = len;
283 fill_stat_cache_info(ce, st);
284 ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
286 if (index_path(&ce->oid, path, st,
287 info_only ? 0 : HASH_WRITE_OBJECT)) {
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)) {
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)
405 int size, len, option;
406 struct cache_entry *ce;
408 if (!verify_path(path, mode))
409 return error("Invalid path '%s'", path);
412 size = cache_entry_size(len);
413 ce = xcalloc(1, size);
415 oidcpy(&ce->oid, oid);
416 memcpy(ce->name, path, len);
417 ce->ce_flags = create_ce_flags(stage);
418 ce->ce_namelen = len;
419 ce->ce_mode = create_ce_mode(mode);
420 if (assume_unchanged)
421 ce->ce_flags |= CE_VALID;
422 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
423 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
424 if (add_cache_entry(ce, option))
425 return error("%s: cannot add to the index - missing --add option?",
427 report("add '%s'", path);
431 static void chmod_path(char flip, const char *path)
434 struct cache_entry *ce;
436 pos = cache_name_pos(path, strlen(path));
439 ce = active_cache[pos];
440 if (chmod_cache_entry(ce, flip) < 0)
443 report("chmod %cx '%s'", flip, path);
446 die("git update-index: cannot chmod %cx '%s'", flip, path);
449 static void update_one(const char *path)
454 if (mark_valid_only || mark_skip_worktree_only || force_remove ||
457 else if (lstat(path, &st) < 0) {
460 } /* else stat is valid */
462 if (!verify_path(path, st.st_mode)) {
463 fprintf(stderr, "Ignoring path %s\n", path);
466 if (mark_valid_only) {
467 if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG))
468 die("Unable to mark file %s", path);
471 if (mark_skip_worktree_only) {
472 if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG))
473 die("Unable to mark file %s", path);
476 if (mark_fsmonitor_only) {
477 if (mark_ce_flags(path, CE_FSMONITOR_VALID, mark_fsmonitor_only == MARK_FLAG))
478 die("Unable to mark file %s", path);
483 if (remove_file_from_cache(path))
484 die("git update-index: unable to remove %s", path);
485 report("remove '%s'", path);
488 if (process_path(path, &st, stat_errno))
489 die("Unable to process path %s", path);
490 report("add '%s'", path);
493 static void read_index_info(int nul_term_line)
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 < GIT_SHA1_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 - GIT_SHA1_HEXSZ, &oid) ||
546 tab[-(GIT_SHA1_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[-(GIT_SHA1_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;
603 struct cache_entry *ce;
605 if (get_tree_entry(ent, path, &oid, &mode)) {
607 error("%s: not in %s branch.", path, which);
610 if (mode == S_IFDIR) {
612 error("%s: not a blob in %s branch.", path, which);
615 size = cache_entry_size(namelen);
616 ce = xcalloc(1, size);
618 oidcpy(&ce->oid, &oid);
619 memcpy(ce->name, path, namelen);
620 ce->ce_flags = create_ce_flags(stage);
621 ce->ce_namelen = namelen;
622 ce->ce_mode = create_ce_mode(mode);
626 static int unresolve_one(const char *path)
628 int namelen = strlen(path);
631 struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
633 /* See if there is such entry in the index. */
634 pos = cache_name_pos(path, namelen);
637 pos = unmerge_cache_entry_at(pos);
638 if (pos < active_nr) {
639 const struct cache_entry *ce = active_cache[pos];
641 ce_namelen(ce) == namelen &&
642 !memcmp(ce->name, path, namelen))
645 /* no resolve-undo information; fall back */
647 /* If there isn't, either it is unmerged, or
648 * resolved as "removed" by mistake. We do not
649 * want to do anything in the former case.
652 if (pos < active_nr) {
653 const struct cache_entry *ce = active_cache[pos];
654 if (ce_namelen(ce) == namelen &&
655 !memcmp(ce->name, path, namelen)) {
657 "%s: skipping still unmerged path.\n",
664 /* Grab blobs from given path from HEAD and MERGE_HEAD,
665 * stuff HEAD version in stage #2,
666 * stuff MERGE_HEAD version in stage #3.
668 ce_2 = read_one_ent("our", &head_oid, path, namelen, 2);
669 ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3);
671 if (!ce_2 || !ce_3) {
675 if (!oidcmp(&ce_2->oid, &ce_3->oid) &&
676 ce_2->ce_mode == ce_3->ce_mode) {
677 fprintf(stderr, "%s: identical in both, skipping.\n",
682 remove_file_from_cache(path);
683 if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
684 error("%s: cannot add our version to the index.", path);
688 if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
690 error("%s: cannot add their version to the index.", path);
698 static void read_head_pointers(void)
700 if (read_ref("HEAD", &head_oid))
701 die("No HEAD -- no initial commit yet?");
702 if (read_ref("MERGE_HEAD", &merge_head_oid)) {
703 fprintf(stderr, "Not in the middle of a merge.\n");
708 static int do_unresolve(int ac, const char **av,
709 const char *prefix, int prefix_length)
714 /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
715 * are not doing a merge, so exit with success status.
717 read_head_pointers();
719 for (i = 1; i < ac; i++) {
720 const char *arg = av[i];
721 char *p = prefix_path(prefix, prefix_length, arg);
722 err |= unresolve_one(p);
728 static int do_reupdate(int ac, const char **av,
729 const char *prefix, int prefix_length)
731 /* Read HEAD and run update-index on paths that are
732 * merged and already different between index and HEAD.
736 struct pathspec pathspec;
738 parse_pathspec(&pathspec, 0,
742 if (read_ref("HEAD", &head_oid))
743 /* If there is no HEAD, that means it is an initial
744 * commit. Update everything in the index.
748 for (pos = 0; pos < active_nr; pos++) {
749 const struct cache_entry *ce = active_cache[pos];
750 struct cache_entry *old = NULL;
754 if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL))
757 old = read_one_ent(NULL, &head_oid,
758 ce->name, ce_namelen(ce), 0);
759 if (old && ce->ce_mode == old->ce_mode &&
760 !oidcmp(&ce->oid, &old->oid)) {
762 continue; /* unchanged */
764 /* Be careful. The working tree may not have the
765 * path anymore, in which case, under 'allow_remove',
766 * or worse yet 'allow_replace', active_nr may decrease.
769 path = xstrdup(ce->name);
773 if (save_nr != active_nr)
776 clear_pathspec(&pathspec);
780 struct refresh_params {
785 static int refresh(struct refresh_params *o, unsigned int flag)
788 read_cache_preload(NULL);
789 *o->has_errors |= refresh_cache(o->flags | flag);
793 static int refresh_callback(const struct option *opt,
794 const char *arg, int unset)
796 return refresh(opt->value, 0);
799 static int really_refresh_callback(const struct option *opt,
800 const char *arg, int unset)
802 return refresh(opt->value, REFRESH_REALLY);
805 static int chmod_callback(const struct option *opt,
806 const char *arg, int unset)
808 char *flip = opt->value;
809 if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2])
810 return error("option 'chmod' expects \"+x\" or \"-x\"");
815 static int resolve_undo_clear_callback(const struct option *opt,
816 const char *arg, int unset)
818 resolve_undo_clear();
822 static int parse_new_style_cacheinfo(const char *arg,
824 struct object_id *oid,
834 ul = strtoul(arg, &endp, 8);
835 if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
836 return -1; /* not a new-style cacheinfo */
839 if (get_oid_hex(endp, oid) || endp[GIT_SHA1_HEXSZ] != ',')
841 *path = endp + GIT_SHA1_HEXSZ + 1;
845 static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
846 const struct option *opt, int unset)
848 struct object_id oid;
852 if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
853 if (add_cacheinfo(mode, &oid, path, 0))
854 die("git update-index: --cacheinfo cannot add %s", path);
860 return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
861 if (strtoul_ui(*++ctx->argv, 8, &mode) ||
862 get_oid_hex(*++ctx->argv, &oid) ||
863 add_cacheinfo(mode, &oid, *++ctx->argv, 0))
864 die("git update-index: --cacheinfo cannot add %s", *ctx->argv);
869 static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
870 const struct option *opt, int unset)
872 int *nul_term_line = opt->value;
875 return error("option '%s' must be the last argument", opt->long_name);
876 allow_add = allow_replace = allow_remove = 1;
877 read_index_info(*nul_term_line);
881 static int stdin_callback(struct parse_opt_ctx_t *ctx,
882 const struct option *opt, int unset)
884 int *read_from_stdin = opt->value;
887 return error("option '%s' must be the last argument", opt->long_name);
888 *read_from_stdin = 1;
892 static int unresolve_callback(struct parse_opt_ctx_t *ctx,
893 const struct option *opt, int flags)
895 int *has_errors = opt->value;
896 const char *prefix = startup_info->prefix;
898 /* consume remaining arguments. */
899 *has_errors = do_unresolve(ctx->argc, ctx->argv,
900 prefix, prefix ? strlen(prefix) : 0);
902 active_cache_changed = 0;
904 ctx->argv += ctx->argc - 1;
909 static int reupdate_callback(struct parse_opt_ctx_t *ctx,
910 const struct option *opt, int flags)
912 int *has_errors = opt->value;
913 const char *prefix = startup_info->prefix;
915 /* consume remaining arguments. */
917 *has_errors = do_reupdate(ctx->argc, ctx->argv,
918 prefix, prefix ? strlen(prefix) : 0);
920 active_cache_changed = 0;
922 ctx->argv += ctx->argc - 1;
927 int cmd_update_index(int argc, const char **argv, const char *prefix)
929 int newfd, entries, has_errors = 0, nul_term_line = 0;
930 enum uc_mode untracked_cache = UC_UNSPECIFIED;
931 int read_from_stdin = 0;
932 int prefix_length = prefix ? strlen(prefix) : 0;
933 int preferred_index_format = 0;
934 char set_executable_bit = 0;
935 struct refresh_params refresh_args = {0, &has_errors};
937 int split_index = -1;
940 struct lock_file lock_file = LOCK_INIT;
941 struct parse_opt_ctx_t ctx;
942 strbuf_getline_fn getline_fn;
943 int parseopt_state = PARSE_OPT_UNKNOWN;
944 struct option options[] = {
945 OPT_BIT('q', NULL, &refresh_args.flags,
946 N_("continue refresh even when index needs update"),
948 OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
949 N_("refresh: ignore submodules"),
950 REFRESH_IGNORE_SUBMODULES),
951 OPT_SET_INT(0, "add", &allow_add,
952 N_("do not ignore new files"), 1),
953 OPT_SET_INT(0, "replace", &allow_replace,
954 N_("let files replace directories and vice-versa"), 1),
955 OPT_SET_INT(0, "remove", &allow_remove,
956 N_("notice files missing from worktree"), 1),
957 OPT_BIT(0, "unmerged", &refresh_args.flags,
958 N_("refresh even if index contains unmerged entries"),
960 {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
961 N_("refresh stat information"),
962 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
964 {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
965 N_("like --refresh, but ignore assume-unchanged setting"),
966 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
967 really_refresh_callback},
968 {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
969 N_("<mode>,<object>,<path>"),
970 N_("add the specified entry to the index"),
971 PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
972 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
973 (parse_opt_cb *) cacheinfo_callback},
974 {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),
975 N_("override the executable bit of the listed files"),
976 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
978 {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
979 N_("mark files as \"not changing\""),
980 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
981 {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
982 N_("clear assumed-unchanged bit"),
983 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
984 {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
985 N_("mark files as \"index-only\""),
986 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
987 {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
988 N_("clear skip-worktree bit"),
989 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
990 OPT_SET_INT(0, "info-only", &info_only,
991 N_("add to index only; do not add content to object database"), 1),
992 OPT_SET_INT(0, "force-remove", &force_remove,
993 N_("remove named paths even if present in worktree"), 1),
994 OPT_BOOL('z', NULL, &nul_term_line,
995 N_("with --stdin: input lines are terminated by null bytes")),
996 {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
997 N_("read list of paths to be updated from standard input"),
998 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
999 (parse_opt_cb *) stdin_callback},
1000 {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
1001 N_("add entries from standard input to the index"),
1002 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1003 (parse_opt_cb *) stdin_cacheinfo_callback},
1004 {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
1005 N_("repopulate stages #2 and #3 for the listed paths"),
1006 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1007 (parse_opt_cb *) unresolve_callback},
1008 {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
1009 N_("only update entries that differ from HEAD"),
1010 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
1011 (parse_opt_cb *) reupdate_callback},
1012 OPT_BIT(0, "ignore-missing", &refresh_args.flags,
1013 N_("ignore files missing from worktree"),
1014 REFRESH_IGNORE_MISSING),
1015 OPT_SET_INT(0, "verbose", &verbose,
1016 N_("report actions to standard output"), 1),
1017 {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
1018 N_("(for porcelains) forget saved unresolved conflicts"),
1019 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
1020 resolve_undo_clear_callback},
1021 OPT_INTEGER(0, "index-version", &preferred_index_format,
1022 N_("write index in this format")),
1023 OPT_BOOL(0, "split-index", &split_index,
1024 N_("enable or disable split index")),
1025 OPT_BOOL(0, "untracked-cache", &untracked_cache,
1026 N_("enable/disable untracked cache")),
1027 OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
1028 N_("test if the filesystem supports untracked cache"), UC_TEST),
1029 OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
1030 N_("enable untracked cache without testing the filesystem"), UC_FORCE),
1031 OPT_SET_INT(0, "force-write-index", &force_write,
1032 N_("write out the index even if is not flagged as changed"), 1),
1033 OPT_BOOL(0, "fsmonitor", &fsmonitor,
1034 N_("enable or disable file system monitor")),
1035 {OPTION_SET_INT, 0, "fsmonitor-valid", &mark_fsmonitor_only, NULL,
1036 N_("mark files as fsmonitor valid"),
1037 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
1038 {OPTION_SET_INT, 0, "no-fsmonitor-valid", &mark_fsmonitor_only, NULL,
1039 N_("clear fsmonitor valid bit"),
1040 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
1044 if (argc == 2 && !strcmp(argv[1], "-h"))
1045 usage_with_options(update_index_usage, options);
1047 git_config(git_default_config, NULL);
1049 /* we will diagnose later if it turns out that we need to update it */
1050 newfd = hold_locked_index(&lock_file, 0);
1054 entries = read_cache();
1056 die("cache corrupted");
1059 * Custom copy of parse_options() because we want to handle
1060 * filename arguments as they come.
1062 parse_options_start(&ctx, argc, argv, prefix,
1063 options, PARSE_OPT_STOP_AT_NON_OPTION);
1065 if (parseopt_state != PARSE_OPT_DONE)
1066 parseopt_state = parse_options_step(&ctx, options,
1067 update_index_usage);
1070 switch (parseopt_state) {
1071 case PARSE_OPT_HELP:
1072 case PARSE_OPT_ERROR:
1074 case PARSE_OPT_NON_OPTION:
1075 case PARSE_OPT_DONE:
1077 const char *path = ctx.argv[0];
1081 p = prefix_path(prefix, prefix_length, path);
1083 if (set_executable_bit)
1084 chmod_path(set_executable_bit, p);
1090 case PARSE_OPT_UNKNOWN:
1091 if (ctx.argv[0][1] == '-')
1092 error("unknown option '%s'", ctx.argv[0] + 2);
1094 error("unknown switch '%c'", *ctx.opt);
1095 usage_with_options(update_index_usage, options);
1098 argc = parse_options_end(&ctx);
1100 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
1101 if (preferred_index_format) {
1102 if (preferred_index_format < INDEX_FORMAT_LB ||
1103 INDEX_FORMAT_UB < preferred_index_format)
1104 die("index-version %d not in range: %d..%d",
1105 preferred_index_format,
1106 INDEX_FORMAT_LB, INDEX_FORMAT_UB);
1108 if (the_index.version != preferred_index_format)
1109 active_cache_changed |= SOMETHING_CHANGED;
1110 the_index.version = preferred_index_format;
1113 if (read_from_stdin) {
1114 struct strbuf buf = STRBUF_INIT;
1115 struct strbuf unquoted = STRBUF_INIT;
1118 while (getline_fn(&buf, stdin) != EOF) {
1120 if (!nul_term_line && buf.buf[0] == '"') {
1121 strbuf_reset(&unquoted);
1122 if (unquote_c_style(&unquoted, buf.buf, NULL))
1123 die("line is badly quoted");
1124 strbuf_swap(&buf, &unquoted);
1126 p = prefix_path(prefix, prefix_length, buf.buf);
1128 if (set_executable_bit)
1129 chmod_path(set_executable_bit, p);
1132 strbuf_release(&unquoted);
1133 strbuf_release(&buf);
1136 if (split_index > 0) {
1137 if (git_config_get_split_index() == 0)
1138 warning(_("core.splitIndex is set to false; "
1139 "remove or change it, if you really want to "
1140 "enable split index"));
1141 if (the_index.split_index)
1142 the_index.cache_changed |= SPLIT_INDEX_ORDERED;
1144 add_split_index(&the_index);
1145 } else if (!split_index) {
1146 if (git_config_get_split_index() == 1)
1147 warning(_("core.splitIndex is set to true; "
1148 "remove or change it, if you really want to "
1149 "disable split index"));
1150 remove_split_index(&the_index);
1153 switch (untracked_cache) {
1154 case UC_UNSPECIFIED:
1157 if (git_config_get_untracked_cache() == 1)
1158 warning(_("core.untrackedCache is set to true; "
1159 "remove or change it, if you really want to "
1160 "disable the untracked cache"));
1161 remove_untracked_cache(&the_index);
1162 report(_("Untracked cache disabled"));
1166 return !test_if_untracked_cache_is_supported();
1169 if (git_config_get_untracked_cache() == 0)
1170 warning(_("core.untrackedCache is set to false; "
1171 "remove or change it, if you really want to "
1172 "enable the untracked cache"));
1173 add_untracked_cache(&the_index);
1174 report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
1177 BUG("bad untracked_cache value: %d", untracked_cache);
1180 if (fsmonitor > 0) {
1181 if (git_config_get_fsmonitor() == 0)
1182 warning(_("core.fsmonitor is unset; "
1183 "set it if you really want to "
1184 "enable fsmonitor"));
1185 add_fsmonitor(&the_index);
1186 report(_("fsmonitor enabled"));
1187 } else if (!fsmonitor) {
1188 if (git_config_get_fsmonitor() == 1)
1189 warning(_("core.fsmonitor is set; "
1190 "remove it if you really want to "
1191 "disable fsmonitor"));
1192 remove_fsmonitor(&the_index);
1193 report(_("fsmonitor disabled"));
1196 if (active_cache_changed || force_write) {
1198 if (refresh_args.flags & REFRESH_QUIET)
1200 unable_to_lock_die(get_index_file(), lock_error);
1202 if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
1203 die("Unable to write new index file");
1206 rollback_lock_file(&lock_file);
1208 return has_errors ? 1 : 0;