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;
129 strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX");
130 if (!mkdtemp(mtime_dir.buf))
131 die_errno("Could not make temporary directory");
133 fprintf(stderr, _("Testing mtime in '%s' "), xgetcwd());
134 atexit(remove_test_directory);
135 xstat_mtime_dir(&st);
136 fill_stat_data(&base, &st);
140 fd = create_file("newfile");
141 xstat_mtime_dir(&st);
142 if (!match_stat_data(&base, &st)) {
145 fprintf_ln(stderr,_("directory stat info does not "
146 "change after adding a new file"));
149 fill_stat_data(&base, &st);
154 xstat_mtime_dir(&st);
155 if (!match_stat_data(&base, &st)) {
158 fprintf_ln(stderr, _("directory stat info does not change "
159 "after adding a new directory"));
162 fill_stat_data(&base, &st);
166 write_or_die(fd, "data", 4);
168 xstat_mtime_dir(&st);
169 if (match_stat_data(&base, &st)) {
171 fprintf_ln(stderr, _("directory stat info changes "
172 "after updating a file"));
178 close(create_file("new-dir/new"));
179 xstat_mtime_dir(&st);
180 if (match_stat_data(&base, &st)) {
182 fprintf_ln(stderr, _("directory stat info changes after "
183 "adding a file inside subdirectory"));
190 xstat_mtime_dir(&st);
191 if (!match_stat_data(&base, &st)) {
193 fprintf_ln(stderr, _("directory stat info does not "
194 "change after deleting a file"));
197 fill_stat_data(&base, &st);
201 xunlink("new-dir/new");
203 xstat_mtime_dir(&st);
204 if (!match_stat_data(&base, &st)) {
206 fprintf_ln(stderr, _("directory stat info does not "
207 "change after deleting a directory"));
211 if (rmdir(mtime_dir.buf))
212 die_errno(_("failed to delete directory %s"), mtime_dir.buf);
213 fprintf_ln(stderr, _(" OK"));
217 strbuf_release(&mtime_dir);
221 static int mark_ce_flags(const char *path, int flag, int mark)
223 int namelen = strlen(path);
224 int pos = cache_name_pos(path, namelen);
227 active_cache[pos]->ce_flags |= flag;
229 active_cache[pos]->ce_flags &= ~flag;
230 active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
231 cache_tree_invalidate_path(&the_index, path);
232 active_cache_changed |= CE_ENTRY_CHANGED;
238 static int remove_one_path(const char *path)
241 return error("%s: does not exist and --remove not passed", path);
242 if (remove_file_from_cache(path))
243 return error("%s: cannot remove from the index", path);
248 * Handle a path that couldn't be lstat'ed. It's either:
249 * - missing file (ENOENT or ENOTDIR). That's ok if we're
250 * supposed to be removing it and the removal actually
252 * - permission error. That's never ok.
254 static int process_lstat_error(const char *path, int err)
256 if (err == ENOENT || err == ENOTDIR)
257 return remove_one_path(path);
258 return error("lstat(\"%s\"): %s", path, strerror(err));
261 static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
264 struct cache_entry *ce;
266 /* Was the old index entry already up-to-date? */
267 if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
270 size = cache_entry_size(len);
271 ce = xcalloc(1, size);
272 memcpy(ce->name, path, len);
273 ce->ce_flags = create_ce_flags(0);
274 ce->ce_namelen = len;
275 fill_stat_cache_info(ce, st);
276 ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
278 if (index_path(ce->oid.hash, path, st,
279 info_only ? 0 : HASH_WRITE_OBJECT)) {
283 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
284 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
285 if (add_cache_entry(ce, option))
286 return error("%s: cannot add to the index - missing --add option?", path);
291 * Handle a path that was a directory. Four cases:
293 * - it's already a gitlink in the index, and we keep it that
294 * way, and update it if we can (if we cannot find the HEAD,
295 * we're going to keep it unchanged in the index!)
297 * - it's a *file* in the index, in which case it should be
298 * removed as a file if removal is allowed, since it doesn't
299 * exist as such any more. If removal isn't allowed, it's
302 * (NOTE! This is old and arguably fairly strange behaviour.
303 * We might want to make this an error unconditionally, and
304 * use "--force-remove" if you actually want to force removal).
306 * - it used to exist as a subdirectory (ie multiple files with
307 * this particular prefix) in the index, in which case it's wrong
308 * to try to update it as a directory.
310 * - it doesn't exist at all in the index, but it is a valid
311 * git directory, and it should be *added* as a gitlink.
313 static int process_directory(const char *path, int len, struct stat *st)
315 struct object_id oid;
316 int pos = cache_name_pos(path, len);
318 /* Exact match: file or existing gitlink */
320 const struct cache_entry *ce = active_cache[pos];
321 if (S_ISGITLINK(ce->ce_mode)) {
323 /* Do nothing to the index if there is no HEAD! */
324 if (resolve_gitlink_ref(path, "HEAD", oid.hash) < 0)
327 return add_one_path(ce, path, len, st);
329 /* Should this be an unconditional error? */
330 return remove_one_path(path);
333 /* Inexact match: is there perhaps a subdirectory match? */
335 while (pos < active_nr) {
336 const struct cache_entry *ce = active_cache[pos++];
338 if (strncmp(ce->name, path, len))
340 if (ce->name[len] > '/')
342 if (ce->name[len] < '/')
345 /* Subdirectory match - error out */
346 return error("%s: is a directory - add individual files instead", path);
349 /* No match - should we add it as a gitlink? */
350 if (!resolve_gitlink_ref(path, "HEAD", oid.hash))
351 return add_one_path(NULL, path, len, st);
354 return error("%s: is a directory - add files inside instead", path);
357 static int process_path(const char *path)
361 const struct cache_entry *ce;
364 if (has_symlink_leading_path(path, len))
365 return error("'%s' is beyond a symbolic link", path);
367 pos = cache_name_pos(path, len);
368 ce = pos < 0 ? NULL : active_cache[pos];
369 if (ce && ce_skip_worktree(ce)) {
371 * working directory version is assumed "good"
372 * so updating it does not make sense.
373 * On the other hand, removing it from index should work
375 if (allow_remove && remove_file_from_cache(path))
376 return error("%s: cannot remove from the index", path);
381 * First things first: get the stat information, to decide
382 * what to do about the pathname!
384 if (lstat(path, &st) < 0)
385 return process_lstat_error(path, errno);
387 if (S_ISDIR(st.st_mode))
388 return process_directory(path, len, &st);
390 return add_one_path(ce, path, len, &st);
393 static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
394 const char *path, int stage)
396 int size, len, option;
397 struct cache_entry *ce;
399 if (!verify_path(path))
400 return error("Invalid path '%s'", path);
403 size = cache_entry_size(len);
404 ce = xcalloc(1, size);
406 oidcpy(&ce->oid, oid);
407 memcpy(ce->name, path, len);
408 ce->ce_flags = create_ce_flags(stage);
409 ce->ce_namelen = len;
410 ce->ce_mode = create_ce_mode(mode);
411 if (assume_unchanged)
412 ce->ce_flags |= CE_VALID;
413 option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
414 option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
415 if (add_cache_entry(ce, option))
416 return error("%s: cannot add to the index - missing --add option?",
418 report("add '%s'", path);
422 static void chmod_path(char flip, const char *path)
425 struct cache_entry *ce;
427 pos = cache_name_pos(path, strlen(path));
430 ce = active_cache[pos];
431 if (chmod_cache_entry(ce, flip) < 0)
434 report("chmod %cx '%s'", flip, path);
437 die("git update-index: cannot chmod %cx '%s'", flip, path);
440 static void update_one(const char *path)
442 if (!verify_path(path)) {
443 fprintf(stderr, "Ignoring path %s\n", path);
446 if (mark_valid_only) {
447 if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG))
448 die("Unable to mark file %s", path);
451 if (mark_skip_worktree_only) {
452 if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG))
453 die("Unable to mark file %s", path);
458 if (remove_file_from_cache(path))
459 die("git update-index: unable to remove %s", path);
460 report("remove '%s'", path);
463 if (process_path(path))
464 die("Unable to process path %s", path);
465 report("add '%s'", path);
468 static void read_index_info(int nul_term_line)
470 struct strbuf buf = STRBUF_INIT;
471 struct strbuf uq = STRBUF_INIT;
472 strbuf_getline_fn getline_fn;
474 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
475 while (getline_fn(&buf, stdin) != EOF) {
478 struct object_id oid;
483 /* This reads lines formatted in one of three formats:
485 * (1) mode SP sha1 TAB path
486 * The first format is what "git apply --index-info"
487 * reports, and used to reconstruct a partial tree
488 * that is used for phony merge base tree when falling
489 * back on 3-way merge.
491 * (2) mode SP type SP sha1 TAB path
492 * The second format is to stuff "git ls-tree" output
493 * into the index file.
495 * (3) mode SP sha1 SP stage TAB path
496 * This format is to put higher order stages into the
497 * index file and matches "git ls-files --stage" output.
500 ul = strtoul(buf.buf, &ptr, 8);
501 if (ptr == buf.buf || *ptr != ' '
502 || errno || (unsigned int) ul != ul)
506 tab = strchr(ptr, '\t');
507 if (!tab || tab - ptr < GIT_SHA1_HEXSZ + 1)
510 if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') {
511 stage = tab[-1] - '0';
512 ptr = tab + 1; /* point at the head of path */
513 tab = tab - 2; /* point at tail of sha1 */
517 ptr = tab + 1; /* point at the head of path */
520 if (get_oid_hex(tab - GIT_SHA1_HEXSZ, &oid) ||
521 tab[-(GIT_SHA1_HEXSZ + 1)] != ' ')
525 if (!nul_term_line && path_name[0] == '"') {
527 if (unquote_c_style(&uq, path_name, NULL)) {
528 die("git update-index: bad quoting of path name");
533 if (!verify_path(path_name)) {
534 fprintf(stderr, "Ignoring path %s\n", path_name);
539 /* mode == 0 means there is no such path -- remove */
540 if (remove_file_from_cache(path_name))
541 die("git update-index: unable to remove %s",
545 /* mode ' ' sha1 '\t' name
546 * ptr[-1] points at tab,
547 * ptr[-41] is at the beginning of sha1
549 ptr[-(GIT_SHA1_HEXSZ + 2)] = ptr[-1] = 0;
550 if (add_cacheinfo(mode, &oid, path_name, stage))
551 die("git update-index: unable to update %s",
557 die("malformed index info %s", buf.buf);
559 strbuf_release(&buf);
563 static const char * const update_index_usage[] = {
564 N_("git update-index [<options>] [--] [<file>...]"),
568 static struct object_id head_oid;
569 static struct object_id merge_head_oid;
571 static struct cache_entry *read_one_ent(const char *which,
572 struct object_id *ent, const char *path,
573 int namelen, int stage)
576 struct object_id oid;
578 struct cache_entry *ce;
580 if (get_tree_entry(ent->hash, path, oid.hash, &mode)) {
582 error("%s: not in %s branch.", path, which);
585 if (mode == S_IFDIR) {
587 error("%s: not a blob in %s branch.", path, which);
590 size = cache_entry_size(namelen);
591 ce = xcalloc(1, size);
593 oidcpy(&ce->oid, &oid);
594 memcpy(ce->name, path, namelen);
595 ce->ce_flags = create_ce_flags(stage);
596 ce->ce_namelen = namelen;
597 ce->ce_mode = create_ce_mode(mode);
601 static int unresolve_one(const char *path)
603 int namelen = strlen(path);
606 struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
608 /* See if there is such entry in the index. */
609 pos = cache_name_pos(path, namelen);
612 pos = unmerge_cache_entry_at(pos);
613 if (pos < active_nr) {
614 const struct cache_entry *ce = active_cache[pos];
616 ce_namelen(ce) == namelen &&
617 !memcmp(ce->name, path, namelen))
620 /* no resolve-undo information; fall back */
622 /* If there isn't, either it is unmerged, or
623 * resolved as "removed" by mistake. We do not
624 * want to do anything in the former case.
627 if (pos < active_nr) {
628 const struct cache_entry *ce = active_cache[pos];
629 if (ce_namelen(ce) == namelen &&
630 !memcmp(ce->name, path, namelen)) {
632 "%s: skipping still unmerged path.\n",
639 /* Grab blobs from given path from HEAD and MERGE_HEAD,
640 * stuff HEAD version in stage #2,
641 * stuff MERGE_HEAD version in stage #3.
643 ce_2 = read_one_ent("our", &head_oid, path, namelen, 2);
644 ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3);
646 if (!ce_2 || !ce_3) {
650 if (!oidcmp(&ce_2->oid, &ce_3->oid) &&
651 ce_2->ce_mode == ce_3->ce_mode) {
652 fprintf(stderr, "%s: identical in both, skipping.\n",
657 remove_file_from_cache(path);
658 if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
659 error("%s: cannot add our version to the index.", path);
663 if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
665 error("%s: cannot add their version to the index.", path);
673 static void read_head_pointers(void)
675 if (read_ref("HEAD", head_oid.hash))
676 die("No HEAD -- no initial commit yet?");
677 if (read_ref("MERGE_HEAD", merge_head_oid.hash)) {
678 fprintf(stderr, "Not in the middle of a merge.\n");
683 static int do_unresolve(int ac, const char **av,
684 const char *prefix, int prefix_length)
689 /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
690 * are not doing a merge, so exit with success status.
692 read_head_pointers();
694 for (i = 1; i < ac; i++) {
695 const char *arg = av[i];
696 char *p = prefix_path(prefix, prefix_length, arg);
697 err |= unresolve_one(p);
703 static int do_reupdate(int ac, const char **av,
704 const char *prefix, int prefix_length)
706 /* Read HEAD and run update-index on paths that are
707 * merged and already different between index and HEAD.
711 struct pathspec pathspec;
713 parse_pathspec(&pathspec, 0,
717 if (read_ref("HEAD", head_oid.hash))
718 /* If there is no HEAD, that means it is an initial
719 * commit. Update everything in the index.
723 for (pos = 0; pos < active_nr; pos++) {
724 const struct cache_entry *ce = active_cache[pos];
725 struct cache_entry *old = NULL;
729 if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL))
732 old = read_one_ent(NULL, &head_oid,
733 ce->name, ce_namelen(ce), 0);
734 if (old && ce->ce_mode == old->ce_mode &&
735 !oidcmp(&ce->oid, &old->oid)) {
737 continue; /* unchanged */
739 /* Be careful. The working tree may not have the
740 * path anymore, in which case, under 'allow_remove',
741 * or worse yet 'allow_replace', active_nr may decrease.
744 path = xstrdup(ce->name);
748 if (save_nr != active_nr)
751 clear_pathspec(&pathspec);
755 struct refresh_params {
760 static int refresh(struct refresh_params *o, unsigned int flag)
763 read_cache_preload(NULL);
764 *o->has_errors |= refresh_cache(o->flags | flag);
768 static int refresh_callback(const struct option *opt,
769 const char *arg, int unset)
771 return refresh(opt->value, 0);
774 static int really_refresh_callback(const struct option *opt,
775 const char *arg, int unset)
777 return refresh(opt->value, REFRESH_REALLY);
780 static int chmod_callback(const struct option *opt,
781 const char *arg, int unset)
783 char *flip = opt->value;
784 if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2])
785 return error("option 'chmod' expects \"+x\" or \"-x\"");
790 static int resolve_undo_clear_callback(const struct option *opt,
791 const char *arg, int unset)
793 resolve_undo_clear();
797 static int parse_new_style_cacheinfo(const char *arg,
799 struct object_id *oid,
809 ul = strtoul(arg, &endp, 8);
810 if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
811 return -1; /* not a new-style cacheinfo */
814 if (get_oid_hex(endp, oid) || endp[GIT_SHA1_HEXSZ] != ',')
816 *path = endp + GIT_SHA1_HEXSZ + 1;
820 static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
821 const struct option *opt, int unset)
823 struct object_id oid;
827 if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
828 if (add_cacheinfo(mode, &oid, path, 0))
829 die("git update-index: --cacheinfo cannot add %s", path);
835 return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
836 if (strtoul_ui(*++ctx->argv, 8, &mode) ||
837 get_oid_hex(*++ctx->argv, &oid) ||
838 add_cacheinfo(mode, &oid, *++ctx->argv, 0))
839 die("git update-index: --cacheinfo cannot add %s", *ctx->argv);
844 static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
845 const struct option *opt, int unset)
847 int *nul_term_line = opt->value;
850 return error("option '%s' must be the last argument", opt->long_name);
851 allow_add = allow_replace = allow_remove = 1;
852 read_index_info(*nul_term_line);
856 static int stdin_callback(struct parse_opt_ctx_t *ctx,
857 const struct option *opt, int unset)
859 int *read_from_stdin = opt->value;
862 return error("option '%s' must be the last argument", opt->long_name);
863 *read_from_stdin = 1;
867 static int unresolve_callback(struct parse_opt_ctx_t *ctx,
868 const struct option *opt, int flags)
870 int *has_errors = opt->value;
871 const char *prefix = startup_info->prefix;
873 /* consume remaining arguments. */
874 *has_errors = do_unresolve(ctx->argc, ctx->argv,
875 prefix, prefix ? strlen(prefix) : 0);
877 active_cache_changed = 0;
879 ctx->argv += ctx->argc - 1;
884 static int reupdate_callback(struct parse_opt_ctx_t *ctx,
885 const struct option *opt, int flags)
887 int *has_errors = opt->value;
888 const char *prefix = startup_info->prefix;
890 /* consume remaining arguments. */
892 *has_errors = do_reupdate(ctx->argc, ctx->argv,
893 prefix, prefix ? strlen(prefix) : 0);
895 active_cache_changed = 0;
897 ctx->argv += ctx->argc - 1;
902 int cmd_update_index(int argc, const char **argv, const char *prefix)
904 int newfd, entries, has_errors = 0, nul_term_line = 0;
905 enum uc_mode untracked_cache = UC_UNSPECIFIED;
906 int read_from_stdin = 0;
907 int prefix_length = prefix ? strlen(prefix) : 0;
908 int preferred_index_format = 0;
909 char set_executable_bit = 0;
910 struct refresh_params refresh_args = {0, &has_errors};
912 int split_index = -1;
913 struct lock_file *lock_file;
914 struct parse_opt_ctx_t ctx;
915 strbuf_getline_fn getline_fn;
916 int parseopt_state = PARSE_OPT_UNKNOWN;
917 struct option options[] = {
918 OPT_BIT('q', NULL, &refresh_args.flags,
919 N_("continue refresh even when index needs update"),
921 OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
922 N_("refresh: ignore submodules"),
923 REFRESH_IGNORE_SUBMODULES),
924 OPT_SET_INT(0, "add", &allow_add,
925 N_("do not ignore new files"), 1),
926 OPT_SET_INT(0, "replace", &allow_replace,
927 N_("let files replace directories and vice-versa"), 1),
928 OPT_SET_INT(0, "remove", &allow_remove,
929 N_("notice files missing from worktree"), 1),
930 OPT_BIT(0, "unmerged", &refresh_args.flags,
931 N_("refresh even if index contains unmerged entries"),
933 {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
934 N_("refresh stat information"),
935 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
937 {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
938 N_("like --refresh, but ignore assume-unchanged setting"),
939 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
940 really_refresh_callback},
941 {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
942 N_("<mode>,<object>,<path>"),
943 N_("add the specified entry to the index"),
944 PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
945 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
946 (parse_opt_cb *) cacheinfo_callback},
947 {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),
948 N_("override the executable bit of the listed files"),
949 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
951 {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
952 N_("mark files as \"not changing\""),
953 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
954 {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
955 N_("clear assumed-unchanged bit"),
956 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
957 {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
958 N_("mark files as \"index-only\""),
959 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
960 {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
961 N_("clear skip-worktree bit"),
962 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
963 OPT_SET_INT(0, "info-only", &info_only,
964 N_("add to index only; do not add content to object database"), 1),
965 OPT_SET_INT(0, "force-remove", &force_remove,
966 N_("remove named paths even if present in worktree"), 1),
967 OPT_BOOL('z', NULL, &nul_term_line,
968 N_("with --stdin: input lines are terminated by null bytes")),
969 {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
970 N_("read list of paths to be updated from standard input"),
971 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
972 (parse_opt_cb *) stdin_callback},
973 {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
974 N_("add entries from standard input to the index"),
975 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
976 (parse_opt_cb *) stdin_cacheinfo_callback},
977 {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
978 N_("repopulate stages #2 and #3 for the listed paths"),
979 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
980 (parse_opt_cb *) unresolve_callback},
981 {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
982 N_("only update entries that differ from HEAD"),
983 PARSE_OPT_NONEG | PARSE_OPT_NOARG,
984 (parse_opt_cb *) reupdate_callback},
985 OPT_BIT(0, "ignore-missing", &refresh_args.flags,
986 N_("ignore files missing from worktree"),
987 REFRESH_IGNORE_MISSING),
988 OPT_SET_INT(0, "verbose", &verbose,
989 N_("report actions to standard output"), 1),
990 {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
991 N_("(for porcelains) forget saved unresolved conflicts"),
992 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
993 resolve_undo_clear_callback},
994 OPT_INTEGER(0, "index-version", &preferred_index_format,
995 N_("write index in this format")),
996 OPT_BOOL(0, "split-index", &split_index,
997 N_("enable or disable split index")),
998 OPT_BOOL(0, "untracked-cache", &untracked_cache,
999 N_("enable/disable untracked cache")),
1000 OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
1001 N_("test if the filesystem supports untracked cache"), UC_TEST),
1002 OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
1003 N_("enable untracked cache without testing the filesystem"), UC_FORCE),
1007 if (argc == 2 && !strcmp(argv[1], "-h"))
1008 usage_with_options(update_index_usage, options);
1010 git_config(git_default_config, NULL);
1012 /* We can't free this memory, it becomes part of a linked list parsed atexit() */
1013 lock_file = xcalloc(1, sizeof(struct lock_file));
1015 newfd = hold_locked_index(lock_file, 0);
1019 entries = read_cache();
1021 die("cache corrupted");
1024 * Custom copy of parse_options() because we want to handle
1025 * filename arguments as they come.
1027 parse_options_start(&ctx, argc, argv, prefix,
1028 options, PARSE_OPT_STOP_AT_NON_OPTION);
1030 if (parseopt_state != PARSE_OPT_DONE)
1031 parseopt_state = parse_options_step(&ctx, options,
1032 update_index_usage);
1035 switch (parseopt_state) {
1036 case PARSE_OPT_HELP:
1038 case PARSE_OPT_NON_OPTION:
1039 case PARSE_OPT_DONE:
1041 const char *path = ctx.argv[0];
1045 p = prefix_path(prefix, prefix_length, path);
1047 if (set_executable_bit)
1048 chmod_path(set_executable_bit, p);
1054 case PARSE_OPT_UNKNOWN:
1055 if (ctx.argv[0][1] == '-')
1056 error("unknown option '%s'", ctx.argv[0] + 2);
1058 error("unknown switch '%c'", *ctx.opt);
1059 usage_with_options(update_index_usage, options);
1062 argc = parse_options_end(&ctx);
1064 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
1065 if (preferred_index_format) {
1066 if (preferred_index_format < INDEX_FORMAT_LB ||
1067 INDEX_FORMAT_UB < preferred_index_format)
1068 die("index-version %d not in range: %d..%d",
1069 preferred_index_format,
1070 INDEX_FORMAT_LB, INDEX_FORMAT_UB);
1072 if (the_index.version != preferred_index_format)
1073 active_cache_changed |= SOMETHING_CHANGED;
1074 the_index.version = preferred_index_format;
1077 if (read_from_stdin) {
1078 struct strbuf buf = STRBUF_INIT;
1079 struct strbuf unquoted = STRBUF_INIT;
1082 while (getline_fn(&buf, stdin) != EOF) {
1084 if (!nul_term_line && buf.buf[0] == '"') {
1085 strbuf_reset(&unquoted);
1086 if (unquote_c_style(&unquoted, buf.buf, NULL))
1087 die("line is badly quoted");
1088 strbuf_swap(&buf, &unquoted);
1090 p = prefix_path(prefix, prefix_length, buf.buf);
1092 if (set_executable_bit)
1093 chmod_path(set_executable_bit, p);
1096 strbuf_release(&unquoted);
1097 strbuf_release(&buf);
1100 if (split_index > 0) {
1101 init_split_index(&the_index);
1102 the_index.cache_changed |= SPLIT_INDEX_ORDERED;
1103 } else if (!split_index && the_index.split_index) {
1105 * can't discard_split_index(&the_index); because that
1106 * will destroy split_index->base->cache[], which may
1107 * be shared with the_index.cache[]. So yeah we're
1108 * leaking a bit here.
1110 the_index.split_index = NULL;
1111 the_index.cache_changed |= SOMETHING_CHANGED;
1114 switch (untracked_cache) {
1115 case UC_UNSPECIFIED:
1118 if (git_config_get_untracked_cache() == 1)
1119 warning(_("core.untrackedCache is set to true; "
1120 "remove or change it, if you really want to "
1121 "disable the untracked cache"));
1122 remove_untracked_cache(&the_index);
1123 report(_("Untracked cache disabled"));
1127 return !test_if_untracked_cache_is_supported();
1130 if (git_config_get_untracked_cache() == 0)
1131 warning(_("core.untrackedCache is set to false; "
1132 "remove or change it, if you really want to "
1133 "enable the untracked cache"));
1134 add_untracked_cache(&the_index);
1135 report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
1138 die("BUG: bad untracked_cache value: %d", untracked_cache);
1141 if (active_cache_changed) {
1143 if (refresh_args.flags & REFRESH_QUIET)
1145 unable_to_lock_die(get_index_file(), lock_error);
1147 if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
1148 die("Unable to write new index file");
1151 rollback_lock_file(lock_file);
1153 return has_errors ? 1 : 0;