4 * Copyright (c) 2006 Junio C Hamano
11 #include "tree-walk.h"
13 #include "parse-options.h"
20 #include "thread-utils.h"
24 static char const * const grep_usage[] = {
25 "git grep [options] [-e] <pattern> [<rev>...] [[--] path...]",
29 static int use_threads = 1;
33 static pthread_t threads[THREADS];
35 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
37 static void *load_file(const char *filename, size_t *sz);
39 enum work_type {WORK_SHA1, WORK_FILE};
41 /* We use one producer thread and THREADS consumer
42 * threads. The producer adds struct work_items to 'todo' and the
43 * consumers pick work items from the same array.
50 /* if type == WORK_SHA1, then 'identifier' is a SHA1,
51 * otherwise type == WORK_FILE, and 'identifier' is a NUL
52 * terminated filename.
59 /* In the range [todo_done, todo_start) in 'todo' we have work_items
60 * that have been or are processed by a consumer thread. We haven't
61 * written the result for these to stdout yet.
63 * The work_items in [todo_start, todo_end) are waiting to be picked
64 * up by a consumer thread.
66 * The ranges are modulo TODO_SIZE.
69 static struct work_item todo[TODO_SIZE];
70 static int todo_start;
74 /* Has all work items been added? */
75 static int all_work_added;
77 /* This lock protects all the variables above. */
78 static pthread_mutex_t grep_mutex;
80 /* Used to serialize calls to read_sha1_file. */
81 static pthread_mutex_t read_sha1_mutex;
83 #define grep_lock() pthread_mutex_lock(&grep_mutex)
84 #define grep_unlock() pthread_mutex_unlock(&grep_mutex)
85 #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex)
86 #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex)
88 /* Signalled when a new work_item is added to todo. */
89 static pthread_cond_t cond_add;
91 /* Signalled when the result from one work_item is written to
94 static pthread_cond_t cond_write;
96 /* Signalled when we are finished with everything. */
97 static pthread_cond_t cond_result;
99 static void add_work(enum work_type type, char *name, void *id)
103 while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) {
104 pthread_cond_wait(&cond_write, &grep_mutex);
107 todo[todo_end].type = type;
108 todo[todo_end].name = name;
109 todo[todo_end].identifier = id;
110 todo[todo_end].done = 0;
111 strbuf_reset(&todo[todo_end].out);
112 todo_end = (todo_end + 1) % ARRAY_SIZE(todo);
114 pthread_cond_signal(&cond_add);
118 static struct work_item *get_work(void)
120 struct work_item *ret;
123 while (todo_start == todo_end && !all_work_added) {
124 pthread_cond_wait(&cond_add, &grep_mutex);
127 if (todo_start == todo_end && all_work_added) {
130 ret = &todo[todo_start];
131 todo_start = (todo_start + 1) % ARRAY_SIZE(todo);
137 static void grep_sha1_async(struct grep_opt *opt, char *name,
138 const unsigned char *sha1)
143 add_work(WORK_SHA1, name, s);
146 static void grep_file_async(struct grep_opt *opt, char *name,
147 const char *filename)
149 add_work(WORK_FILE, name, xstrdup(filename));
152 static void work_done(struct work_item *w)
158 old_done = todo_done;
159 for(; todo[todo_done].done && todo_done != todo_start;
160 todo_done = (todo_done+1) % ARRAY_SIZE(todo)) {
161 w = &todo[todo_done];
162 write_or_die(1, w->out.buf, w->out.len);
167 if (old_done != todo_done)
168 pthread_cond_signal(&cond_write);
170 if (all_work_added && todo_done == todo_end)
171 pthread_cond_signal(&cond_result);
176 static void *run(void *arg)
179 struct grep_opt *opt = arg;
182 struct work_item *w = get_work();
186 opt->output_priv = w;
187 if (w->type == WORK_SHA1) {
189 void* data = load_sha1(w->identifier, &sz, w->name);
192 hit |= grep_buffer(opt, w->name, data, sz);
195 } else if (w->type == WORK_FILE) {
197 void* data = load_file(w->identifier, &sz);
199 hit |= grep_buffer(opt, w->name, data, sz);
208 free_grep_patterns(arg);
211 return (void*) (intptr_t) hit;
214 static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size)
216 struct work_item *w = opt->output_priv;
217 strbuf_add(&w->out, buf, size);
220 static void start_threads(struct grep_opt *opt)
224 pthread_mutex_init(&grep_mutex, NULL);
225 pthread_mutex_init(&read_sha1_mutex, NULL);
226 pthread_cond_init(&cond_add, NULL);
227 pthread_cond_init(&cond_write, NULL);
228 pthread_cond_init(&cond_result, NULL);
230 for (i = 0; i < ARRAY_SIZE(todo); i++) {
231 strbuf_init(&todo[i].out, 0);
234 for (i = 0; i < ARRAY_SIZE(threads); i++) {
236 struct grep_opt *o = grep_opt_dup(opt);
237 o->output = strbuf_out;
238 compile_grep_patterns(o);
239 err = pthread_create(&threads[i], NULL, run, o);
242 die("grep: failed to create thread: %s",
247 static int wait_all(void)
255 /* Wait until all work is done. */
256 while (todo_done != todo_end)
257 pthread_cond_wait(&cond_result, &grep_mutex);
259 /* Wake up all the consumer threads so they can see that there
260 * is no more work to do.
262 pthread_cond_broadcast(&cond_add);
265 for (i = 0; i < ARRAY_SIZE(threads); i++) {
267 pthread_join(threads[i], &h);
268 hit |= (int) (intptr_t) h;
271 pthread_mutex_destroy(&grep_mutex);
272 pthread_mutex_destroy(&read_sha1_mutex);
273 pthread_cond_destroy(&cond_add);
274 pthread_cond_destroy(&cond_write);
275 pthread_cond_destroy(&cond_result);
279 #else /* !NO_PTHREADS */
280 #define read_sha1_lock()
281 #define read_sha1_unlock()
283 static int wait_all(void)
289 static int grep_config(const char *var, const char *value, void *cb)
291 struct grep_opt *opt = cb;
294 switch (userdiff_config(var, value)) {
300 if (!strcmp(var, "color.grep"))
301 opt->color = git_config_colorbool(var, value, -1);
302 else if (!strcmp(var, "color.grep.context"))
303 color = opt->color_context;
304 else if (!strcmp(var, "color.grep.filename"))
305 color = opt->color_filename;
306 else if (!strcmp(var, "color.grep.function"))
307 color = opt->color_function;
308 else if (!strcmp(var, "color.grep.linenumber"))
309 color = opt->color_lineno;
310 else if (!strcmp(var, "color.grep.match"))
311 color = opt->color_match;
312 else if (!strcmp(var, "color.grep.selected"))
313 color = opt->color_selected;
314 else if (!strcmp(var, "color.grep.separator"))
315 color = opt->color_sep;
317 return git_color_default_config(var, value, cb);
320 return config_error_nonbool(var);
321 color_parse(value, var, color);
327 * Return non-zero if max_depth is negative or path has no more then max_depth
330 static int accept_subdir(const char *path, int max_depth)
335 while ((path = strchr(path, '/')) != NULL) {
345 * Return non-zero if name is a subdirectory of match and is not too deep.
347 static int is_subdir(const char *name, int namelen,
348 const char *match, int matchlen, int max_depth)
350 if (matchlen > namelen || strncmp(name, match, matchlen))
353 if (name[matchlen] == '\0') /* exact match */
356 if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/')
357 return accept_subdir(name + matchlen + 1, max_depth);
363 * git grep pathspecs are somewhat different from diff-tree pathspecs;
364 * pathname wildcards are allowed.
366 static int pathspec_matches(const char **paths, const char *name, int max_depth)
369 if (!paths || !*paths)
370 return accept_subdir(name, max_depth);
371 namelen = strlen(name);
372 for (i = 0; paths[i]; i++) {
373 const char *match = paths[i];
374 int matchlen = strlen(match);
375 const char *cp, *meta;
377 if (is_subdir(name, namelen, match, matchlen, max_depth))
379 if (!fnmatch(match, name, 0))
381 if (name[namelen-1] != '/')
384 /* We are being asked if the directory ("name") is worth
387 * Find the longest leading directory name that does
388 * not have metacharacter in the pathspec; the name
389 * we are looking at must overlap with that directory.
391 for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
393 if (ch == '*' || ch == '[' || ch == '?') {
399 meta = cp; /* fully literal */
401 if (namelen <= meta - match) {
402 /* Looking at "Documentation/" and
403 * the pattern says "Documentation/howto/", or
404 * "Documentation/diff*.txt". The name we
405 * have should match prefix.
407 if (!memcmp(match, name, namelen))
412 if (meta - match < namelen) {
413 /* Looking at "Documentation/howto/" and
414 * the pattern says "Documentation/h*";
415 * match up to "Do.../h"; this avoids descending
416 * into "Documentation/technical/".
418 if (!memcmp(match, name, meta - match))
426 static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
432 data = read_sha1_file(sha1, type, size);
435 data = read_sha1_file(sha1, type, size);
440 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
443 enum object_type type;
444 void *data = lock_and_read_sha1_file(sha1, &type, size);
447 error("'%s': unable to read %s", name, sha1_to_hex(sha1));
452 static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1,
453 const char *filename, int tree_name_len)
455 struct strbuf pathbuf = STRBUF_INIT;
458 if (opt->relative && opt->prefix_length) {
459 quote_path_relative(filename + tree_name_len, -1, &pathbuf,
461 strbuf_insert(&pathbuf, 0, filename, tree_name_len);
463 strbuf_addstr(&pathbuf, filename);
466 name = strbuf_detach(&pathbuf, NULL);
470 grep_sha1_async(opt, name, sha1);
477 void *data = load_sha1(sha1, &sz, name);
481 hit = grep_buffer(opt, name, data, sz);
489 static void *load_file(const char *filename, size_t *sz)
495 if (lstat(filename, &st) < 0) {
498 error("'%s': %s", filename, strerror(errno));
501 if (!S_ISREG(st.st_mode))
503 *sz = xsize_t(st.st_size);
504 i = open(filename, O_RDONLY);
507 data = xmalloc(*sz + 1);
508 if (st.st_size != read_in_full(i, data, *sz)) {
509 error("'%s': short read %s", filename, strerror(errno));
519 static int grep_file(struct grep_opt *opt, const char *filename)
521 struct strbuf buf = STRBUF_INIT;
524 if (opt->relative && opt->prefix_length)
525 quote_path_relative(filename, -1, &buf, opt->prefix);
527 strbuf_addstr(&buf, filename);
528 name = strbuf_detach(&buf, NULL);
532 grep_file_async(opt, name, filename);
539 void *data = load_file(filename, &sz);
543 hit = grep_buffer(opt, name, data, sz);
551 static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
557 for (nr = 0; nr < active_nr; nr++) {
558 struct cache_entry *ce = active_cache[nr];
559 if (!S_ISREG(ce->ce_mode))
561 if (!pathspec_matches(paths, ce->name, opt->max_depth))
564 * If CE_VALID is on, we assume worktree file and its cache entry
565 * are identical, even if worktree file has been modified, so use
566 * cache version instead
568 if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) {
571 hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
574 hit |= grep_file(opt, ce->name);
578 } while (nr < active_nr &&
579 !strcmp(ce->name, active_cache[nr]->name));
580 nr--; /* compensate for loop control */
582 if (hit && opt->status_only)
585 free_grep_patterns(opt);
589 static int grep_tree(struct grep_opt *opt, const char **paths,
590 struct tree_desc *tree,
591 const char *tree_name, const char *base)
595 struct name_entry entry;
597 int tn_len = strlen(tree_name);
598 struct strbuf pathbuf;
600 strbuf_init(&pathbuf, PATH_MAX + tn_len);
603 strbuf_add(&pathbuf, tree_name, tn_len);
604 strbuf_addch(&pathbuf, ':');
605 tn_len = pathbuf.len;
607 strbuf_addstr(&pathbuf, base);
610 while (tree_entry(tree, &entry)) {
611 int te_len = tree_entry_len(entry.path, entry.sha1);
613 strbuf_add(&pathbuf, entry.path, te_len);
615 if (S_ISDIR(entry.mode))
616 /* Match "abc/" against pathspec to
617 * decide if we want to descend into "abc"
620 strbuf_addch(&pathbuf, '/');
622 down = pathbuf.buf + tn_len;
623 if (!pathspec_matches(paths, down, opt->max_depth))
625 else if (S_ISREG(entry.mode))
626 hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len);
627 else if (S_ISDIR(entry.mode)) {
628 enum object_type type;
629 struct tree_desc sub;
633 data = lock_and_read_sha1_file(entry.sha1, &type, &size);
635 die("unable to read tree (%s)",
636 sha1_to_hex(entry.sha1));
637 init_tree_desc(&sub, data, size);
638 hit |= grep_tree(opt, paths, &sub, tree_name, down);
641 if (hit && opt->status_only)
644 strbuf_release(&pathbuf);
648 static int grep_object(struct grep_opt *opt, const char **paths,
649 struct object *obj, const char *name)
651 if (obj->type == OBJ_BLOB)
652 return grep_sha1(opt, obj->sha1, name, 0);
653 if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
654 struct tree_desc tree;
658 data = read_object_with_reference(obj->sha1, tree_type,
661 die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
662 init_tree_desc(&tree, data, size);
663 hit = grep_tree(opt, paths, &tree, name, "");
667 die("unable to grep from object of type %s", typename(obj->type));
670 static int grep_directory(struct grep_opt *opt, const char **paths)
672 struct dir_struct dir;
675 memset(&dir, 0, sizeof(dir));
676 setup_standard_excludes(&dir);
678 fill_directory(&dir, paths);
679 for (i = 0; i < dir.nr; i++) {
680 hit |= grep_file(opt, dir.entries[i]->name);
681 if (hit && opt->status_only)
684 free_grep_patterns(opt);
688 static int context_callback(const struct option *opt, const char *arg,
691 struct grep_opt *grep_opt = opt->value;
696 grep_opt->pre_context = grep_opt->post_context = 0;
699 value = strtol(arg, (char **)&endp, 10);
701 return error("switch `%c' expects a numerical value",
704 grep_opt->pre_context = grep_opt->post_context = value;
708 static int file_callback(const struct option *opt, const char *arg, int unset)
710 struct grep_opt *grep_opt = opt->value;
713 struct strbuf sb = STRBUF_INIT;
715 patterns = fopen(arg, "r");
717 die_errno("cannot open '%s'", arg);
718 while (strbuf_getline(&sb, patterns, '\n') == 0) {
719 /* ignore empty line like grep does */
722 append_grep_pattern(grep_opt, strbuf_detach(&sb, NULL), arg,
723 ++lno, GREP_PATTERN);
730 static int not_callback(const struct option *opt, const char *arg, int unset)
732 struct grep_opt *grep_opt = opt->value;
733 append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT);
737 static int and_callback(const struct option *opt, const char *arg, int unset)
739 struct grep_opt *grep_opt = opt->value;
740 append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND);
744 static int open_callback(const struct option *opt, const char *arg, int unset)
746 struct grep_opt *grep_opt = opt->value;
747 append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN);
751 static int close_callback(const struct option *opt, const char *arg, int unset)
753 struct grep_opt *grep_opt = opt->value;
754 append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN);
758 static int pattern_callback(const struct option *opt, const char *arg,
761 struct grep_opt *grep_opt = opt->value;
762 append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN);
766 static int help_callback(const struct option *opt, const char *arg, int unset)
771 int cmd_grep(int argc, const char **argv, const char *prefix)
775 int seen_dashdash = 0;
776 int external_grep_allowed__ignored;
778 struct object_array list = { 0, 0, NULL };
779 const char **paths = NULL;
782 int nongit = 0, use_index = 1;
783 struct option options[] = {
784 OPT_BOOLEAN(0, "cached", &cached,
785 "search in index instead of in the work tree"),
786 OPT_BOOLEAN(0, "index", &use_index,
787 "--no-index finds in contents not managed by git"),
789 OPT_BOOLEAN('v', "invert-match", &opt.invert,
790 "show non-matching lines"),
791 OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
792 "case insensitive matching"),
793 OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
794 "match patterns only at word boundaries"),
795 OPT_SET_INT('a', "text", &opt.binary,
796 "process binary files as text", GREP_BINARY_TEXT),
797 OPT_SET_INT('I', NULL, &opt.binary,
798 "don't match patterns in binary files",
799 GREP_BINARY_NOMATCH),
800 { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
801 "descend at most <depth> levels", PARSE_OPT_NONEG,
804 OPT_BIT('E', "extended-regexp", &opt.regflags,
805 "use extended POSIX regular expressions", REG_EXTENDED),
806 OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
807 "use basic POSIX regular expressions (default)",
809 OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
810 "interpret patterns as fixed strings"),
812 OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
813 OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
814 OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
815 OPT_NEGBIT(0, "full-name", &opt.relative,
816 "show filenames relative to top directory", 1),
817 OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
818 "show only filenames instead of matching lines"),
819 OPT_BOOLEAN(0, "name-only", &opt.name_only,
820 "synonym for --files-with-matches"),
821 OPT_BOOLEAN('L', "files-without-match",
822 &opt.unmatch_name_only,
823 "show only the names of files without match"),
824 OPT_BOOLEAN('z', "null", &opt.null_following_name,
825 "print NUL after filenames"),
826 OPT_BOOLEAN('c', "count", &opt.count,
827 "show the number of matches instead of matching lines"),
828 OPT__COLOR(&opt.color, "highlight matches"),
830 OPT_CALLBACK('C', NULL, &opt, "n",
831 "show <n> context lines before and after matches",
833 OPT_INTEGER('B', NULL, &opt.pre_context,
834 "show <n> context lines before matches"),
835 OPT_INTEGER('A', NULL, &opt.post_context,
836 "show <n> context lines after matches"),
837 OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
839 OPT_BOOLEAN('p', "show-function", &opt.funcname,
840 "show a line with the function name before matches"),
842 OPT_CALLBACK('f', NULL, &opt, "file",
843 "read patterns from file", file_callback),
844 { OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
845 "match <pattern>", PARSE_OPT_NONEG, pattern_callback },
846 { OPTION_CALLBACK, 0, "and", &opt, NULL,
847 "combine patterns specified with -e",
848 PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
849 OPT_BOOLEAN(0, "or", &dummy, ""),
850 { OPTION_CALLBACK, 0, "not", &opt, NULL, "",
851 PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
852 { OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
853 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
855 { OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
856 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
858 OPT_BOOLEAN('q', "quiet", &opt.status_only,
859 "indicate hit with exit status without output"),
860 OPT_BOOLEAN(0, "all-match", &opt.all_match,
861 "show only matches from files that match all patterns"),
863 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
864 "allow calling of grep(1) (ignored by this build)"),
865 { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
866 PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
870 prefix = setup_git_directory_gently(&nongit);
873 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
874 * to show usage information and exit.
876 if (argc == 2 && !strcmp(argv[1], "-h"))
877 usage_with_options(grep_usage, options);
879 memset(&opt, 0, sizeof(opt));
881 opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
884 opt.pattern_tail = &opt.pattern_list;
885 opt.header_tail = &opt.header_list;
886 opt.regflags = REG_NEWLINE;
889 strcpy(opt.color_context, "");
890 strcpy(opt.color_filename, "");
891 strcpy(opt.color_function, "");
892 strcpy(opt.color_lineno, "");
893 strcpy(opt.color_match, GIT_COLOR_BOLD_RED);
894 strcpy(opt.color_selected, "");
895 strcpy(opt.color_sep, GIT_COLOR_CYAN);
897 git_config(grep_config, &opt);
899 opt.color = git_use_color_default;
902 * If there is no -- then the paths must exist in the working
903 * tree. If there is no explicit pattern specified with -e or
904 * -f, we take the first unrecognized non option to be the
905 * pattern, but then what follows it must be zero or more
906 * valid refs up to the -- (if exists), and then existing
907 * paths. If there is an explicit pattern, then the first
908 * unrecognized non option is the beginning of the refs list
909 * that continues up to the -- (if exists), and then paths.
911 argc = parse_options(argc, argv, prefix, options, grep_usage,
912 PARSE_OPT_KEEP_DASHDASH |
913 PARSE_OPT_STOP_AT_NON_OPTION |
914 PARSE_OPT_NO_INTERNAL_HELP);
916 if (use_index && nongit)
917 /* die the same way as if we did it at the beginning */
918 setup_git_directory();
921 * skip a -- separator; we know it cannot be
922 * separating revisions from pathnames if
923 * we haven't even had any patterns yet
925 if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
930 /* First unrecognized non-option token */
931 if (argc > 0 && !opt.pattern_list) {
932 append_grep_pattern(&opt, argv[0], "command line", 0,
938 if (!opt.pattern_list)
939 die("no pattern given.");
940 if (!opt.fixed && opt.ignore_case)
941 opt.regflags |= REG_ICASE;
942 if ((opt.regflags != REG_NEWLINE) && opt.fixed)
943 die("cannot mix --fixed-strings and regexp");
946 if (online_cpus() == 1 || !grep_threads_ok(&opt))
955 compile_grep_patterns(&opt);
957 /* Check revs and then paths */
958 for (i = 0; i < argc; i++) {
959 const char *arg = argv[i];
960 unsigned char sha1[20];
962 if (!get_sha1(arg, sha1)) {
963 struct object *object = parse_object(sha1);
965 die("bad object %s", arg);
966 add_object_array(object, arg, &list);
969 if (!strcmp(arg, "--")) {
976 /* The rest are paths */
977 if (!seen_dashdash) {
979 for (j = i; j < argc; j++)
980 verify_filename(prefix, argv[j]);
984 paths = get_pathspec(prefix, argv + i);
986 paths = xcalloc(2, sizeof(const char *));
994 die("--cached cannot be used with --no-index.");
996 die("--no-index cannot be used with revs.");
997 hit = grep_directory(&opt, paths);
1008 hit = grep_cache(&opt, paths, cached);
1015 die("both --cached and trees are given.");
1017 for (i = 0; i < list.nr; i++) {
1018 struct object *real_obj;
1019 real_obj = deref_tag(list.objects[i].item, NULL, 0);
1020 if (grep_object(&opt, paths, real_obj, list.objects[i].name)) {
1022 if (opt.status_only)
1029 free_grep_patterns(&opt);