4 * Copyright (c) 2006 Junio C Hamano
11 #include "tree-walk.h"
13 #include "parse-options.h"
21 #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 int print_hunk_marks_between_files;
100 static int printed_something;
102 static void add_work(enum work_type type, char *name, void *id)
106 while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) {
107 pthread_cond_wait(&cond_write, &grep_mutex);
110 todo[todo_end].type = type;
111 todo[todo_end].name = name;
112 todo[todo_end].identifier = id;
113 todo[todo_end].done = 0;
114 strbuf_reset(&todo[todo_end].out);
115 todo_end = (todo_end + 1) % ARRAY_SIZE(todo);
117 pthread_cond_signal(&cond_add);
121 static struct work_item *get_work(void)
123 struct work_item *ret;
126 while (todo_start == todo_end && !all_work_added) {
127 pthread_cond_wait(&cond_add, &grep_mutex);
130 if (todo_start == todo_end && all_work_added) {
133 ret = &todo[todo_start];
134 todo_start = (todo_start + 1) % ARRAY_SIZE(todo);
140 static void grep_sha1_async(struct grep_opt *opt, char *name,
141 const unsigned char *sha1)
146 add_work(WORK_SHA1, name, s);
149 static void grep_file_async(struct grep_opt *opt, char *name,
150 const char *filename)
152 add_work(WORK_FILE, name, xstrdup(filename));
155 static void work_done(struct work_item *w)
161 old_done = todo_done;
162 for(; todo[todo_done].done && todo_done != todo_start;
163 todo_done = (todo_done+1) % ARRAY_SIZE(todo)) {
164 w = &todo[todo_done];
166 if (print_hunk_marks_between_files && printed_something)
167 write_or_die(1, "--\n", 3);
168 write_or_die(1, w->out.buf, w->out.len);
169 printed_something = 1;
175 if (old_done != todo_done)
176 pthread_cond_signal(&cond_write);
178 if (all_work_added && todo_done == todo_end)
179 pthread_cond_signal(&cond_result);
184 static void *run(void *arg)
187 struct grep_opt *opt = arg;
190 struct work_item *w = get_work();
194 opt->output_priv = w;
195 if (w->type == WORK_SHA1) {
197 void* data = load_sha1(w->identifier, &sz, w->name);
200 hit |= grep_buffer(opt, w->name, data, sz);
203 } else if (w->type == WORK_FILE) {
205 void* data = load_file(w->identifier, &sz);
207 hit |= grep_buffer(opt, w->name, data, sz);
216 free_grep_patterns(arg);
219 return (void*) (intptr_t) hit;
222 static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size)
224 struct work_item *w = opt->output_priv;
225 strbuf_add(&w->out, buf, size);
228 static void start_threads(struct grep_opt *opt)
232 pthread_mutex_init(&grep_mutex, NULL);
233 pthread_mutex_init(&read_sha1_mutex, NULL);
234 pthread_cond_init(&cond_add, NULL);
235 pthread_cond_init(&cond_write, NULL);
236 pthread_cond_init(&cond_result, NULL);
238 for (i = 0; i < ARRAY_SIZE(todo); i++) {
239 strbuf_init(&todo[i].out, 0);
242 for (i = 0; i < ARRAY_SIZE(threads); i++) {
244 struct grep_opt *o = grep_opt_dup(opt);
245 o->output = strbuf_out;
246 compile_grep_patterns(o);
247 err = pthread_create(&threads[i], NULL, run, o);
250 die("grep: failed to create thread: %s",
255 static int wait_all(void)
263 /* Wait until all work is done. */
264 while (todo_done != todo_end)
265 pthread_cond_wait(&cond_result, &grep_mutex);
267 /* Wake up all the consumer threads so they can see that there
268 * is no more work to do.
270 pthread_cond_broadcast(&cond_add);
273 for (i = 0; i < ARRAY_SIZE(threads); i++) {
275 pthread_join(threads[i], &h);
276 hit |= (int) (intptr_t) h;
279 pthread_mutex_destroy(&grep_mutex);
280 pthread_mutex_destroy(&read_sha1_mutex);
281 pthread_cond_destroy(&cond_add);
282 pthread_cond_destroy(&cond_write);
283 pthread_cond_destroy(&cond_result);
287 #else /* !NO_PTHREADS */
288 #define read_sha1_lock()
289 #define read_sha1_unlock()
291 static int wait_all(void)
297 static int grep_config(const char *var, const char *value, void *cb)
299 struct grep_opt *opt = cb;
302 switch (userdiff_config(var, value)) {
308 if (!strcmp(var, "color.grep"))
309 opt->color = git_config_colorbool(var, value, -1);
310 else if (!strcmp(var, "color.grep.context"))
311 color = opt->color_context;
312 else if (!strcmp(var, "color.grep.filename"))
313 color = opt->color_filename;
314 else if (!strcmp(var, "color.grep.function"))
315 color = opt->color_function;
316 else if (!strcmp(var, "color.grep.linenumber"))
317 color = opt->color_lineno;
318 else if (!strcmp(var, "color.grep.match"))
319 color = opt->color_match;
320 else if (!strcmp(var, "color.grep.selected"))
321 color = opt->color_selected;
322 else if (!strcmp(var, "color.grep.separator"))
323 color = opt->color_sep;
325 return git_color_default_config(var, value, cb);
328 return config_error_nonbool(var);
329 color_parse(value, var, color);
335 * Return non-zero if max_depth is negative or path has no more then max_depth
338 static int accept_subdir(const char *path, int max_depth)
343 while ((path = strchr(path, '/')) != NULL) {
353 * Return non-zero if name is a subdirectory of match and is not too deep.
355 static int is_subdir(const char *name, int namelen,
356 const char *match, int matchlen, int max_depth)
358 if (matchlen > namelen || strncmp(name, match, matchlen))
361 if (name[matchlen] == '\0') /* exact match */
364 if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/')
365 return accept_subdir(name + matchlen + 1, max_depth);
371 * git grep pathspecs are somewhat different from diff-tree pathspecs;
372 * pathname wildcards are allowed.
374 static int pathspec_matches(const char **paths, const char *name, int max_depth)
377 if (!paths || !*paths)
378 return accept_subdir(name, max_depth);
379 namelen = strlen(name);
380 for (i = 0; paths[i]; i++) {
381 const char *match = paths[i];
382 int matchlen = strlen(match);
383 const char *cp, *meta;
385 if (is_subdir(name, namelen, match, matchlen, max_depth))
387 if (!fnmatch(match, name, 0))
389 if (name[namelen-1] != '/')
392 /* We are being asked if the directory ("name") is worth
395 * Find the longest leading directory name that does
396 * not have metacharacter in the pathspec; the name
397 * we are looking at must overlap with that directory.
399 for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
401 if (ch == '*' || ch == '[' || ch == '?') {
407 meta = cp; /* fully literal */
409 if (namelen <= meta - match) {
410 /* Looking at "Documentation/" and
411 * the pattern says "Documentation/howto/", or
412 * "Documentation/diff*.txt". The name we
413 * have should match prefix.
415 if (!memcmp(match, name, namelen))
420 if (meta - match < namelen) {
421 /* Looking at "Documentation/howto/" and
422 * the pattern says "Documentation/h*";
423 * match up to "Do.../h"; this avoids descending
424 * into "Documentation/technical/".
426 if (!memcmp(match, name, meta - match))
434 static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
440 data = read_sha1_file(sha1, type, size);
443 data = read_sha1_file(sha1, type, size);
448 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
451 enum object_type type;
452 void *data = lock_and_read_sha1_file(sha1, &type, size);
455 error("'%s': unable to read %s", name, sha1_to_hex(sha1));
460 static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1,
461 const char *filename, int tree_name_len)
463 struct strbuf pathbuf = STRBUF_INIT;
466 if (opt->relative && opt->prefix_length) {
467 quote_path_relative(filename + tree_name_len, -1, &pathbuf,
469 strbuf_insert(&pathbuf, 0, filename, tree_name_len);
471 strbuf_addstr(&pathbuf, filename);
474 name = strbuf_detach(&pathbuf, NULL);
478 grep_sha1_async(opt, name, sha1);
485 void *data = load_sha1(sha1, &sz, name);
489 hit = grep_buffer(opt, name, data, sz);
497 static void *load_file(const char *filename, size_t *sz)
503 if (lstat(filename, &st) < 0) {
506 error("'%s': %s", filename, strerror(errno));
509 if (!S_ISREG(st.st_mode))
511 *sz = xsize_t(st.st_size);
512 i = open(filename, O_RDONLY);
515 data = xmalloc(*sz + 1);
516 if (st.st_size != read_in_full(i, data, *sz)) {
517 error("'%s': short read %s", filename, strerror(errno));
527 static int grep_file(struct grep_opt *opt, const char *filename)
529 struct strbuf buf = STRBUF_INIT;
532 if (opt->relative && opt->prefix_length)
533 quote_path_relative(filename, -1, &buf, opt->prefix);
535 strbuf_addstr(&buf, filename);
536 name = strbuf_detach(&buf, NULL);
540 grep_file_async(opt, name, filename);
547 void *data = load_file(filename, &sz);
551 hit = grep_buffer(opt, name, data, sz);
559 static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
565 for (nr = 0; nr < active_nr; nr++) {
566 struct cache_entry *ce = active_cache[nr];
567 if (!S_ISREG(ce->ce_mode))
569 if (!pathspec_matches(paths, ce->name, opt->max_depth))
572 * If CE_VALID is on, we assume worktree file and its cache entry
573 * are identical, even if worktree file has been modified, so use
574 * cache version instead
576 if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) {
579 hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
582 hit |= grep_file(opt, ce->name);
586 } while (nr < active_nr &&
587 !strcmp(ce->name, active_cache[nr]->name));
588 nr--; /* compensate for loop control */
590 if (hit && opt->status_only)
593 free_grep_patterns(opt);
597 static int grep_tree(struct grep_opt *opt, const char **paths,
598 struct tree_desc *tree,
599 const char *tree_name, const char *base)
603 struct name_entry entry;
605 int tn_len = strlen(tree_name);
606 struct strbuf pathbuf;
608 strbuf_init(&pathbuf, PATH_MAX + tn_len);
611 strbuf_add(&pathbuf, tree_name, tn_len);
612 strbuf_addch(&pathbuf, ':');
613 tn_len = pathbuf.len;
615 strbuf_addstr(&pathbuf, base);
618 while (tree_entry(tree, &entry)) {
619 int te_len = tree_entry_len(entry.path, entry.sha1);
621 strbuf_add(&pathbuf, entry.path, te_len);
623 if (S_ISDIR(entry.mode))
624 /* Match "abc/" against pathspec to
625 * decide if we want to descend into "abc"
628 strbuf_addch(&pathbuf, '/');
630 down = pathbuf.buf + tn_len;
631 if (!pathspec_matches(paths, down, opt->max_depth))
633 else if (S_ISREG(entry.mode))
634 hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len);
635 else if (S_ISDIR(entry.mode)) {
636 enum object_type type;
637 struct tree_desc sub;
641 data = lock_and_read_sha1_file(entry.sha1, &type, &size);
643 die("unable to read tree (%s)",
644 sha1_to_hex(entry.sha1));
645 init_tree_desc(&sub, data, size);
646 hit |= grep_tree(opt, paths, &sub, tree_name, down);
649 if (hit && opt->status_only)
652 strbuf_release(&pathbuf);
656 static int grep_object(struct grep_opt *opt, const char **paths,
657 struct object *obj, const char *name)
659 if (obj->type == OBJ_BLOB)
660 return grep_sha1(opt, obj->sha1, name, 0);
661 if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
662 struct tree_desc tree;
666 data = read_object_with_reference(obj->sha1, tree_type,
669 die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
670 init_tree_desc(&tree, data, size);
671 hit = grep_tree(opt, paths, &tree, name, "");
675 die("unable to grep from object of type %s", typename(obj->type));
678 static int grep_directory(struct grep_opt *opt, const char **paths)
680 struct dir_struct dir;
683 memset(&dir, 0, sizeof(dir));
684 setup_standard_excludes(&dir);
686 fill_directory(&dir, paths);
687 for (i = 0; i < dir.nr; i++) {
688 hit |= grep_file(opt, dir.entries[i]->name);
689 if (hit && opt->status_only)
692 free_grep_patterns(opt);
696 static int context_callback(const struct option *opt, const char *arg,
699 struct grep_opt *grep_opt = opt->value;
704 grep_opt->pre_context = grep_opt->post_context = 0;
707 value = strtol(arg, (char **)&endp, 10);
709 return error("switch `%c' expects a numerical value",
712 grep_opt->pre_context = grep_opt->post_context = value;
716 static int file_callback(const struct option *opt, const char *arg, int unset)
718 struct grep_opt *grep_opt = opt->value;
721 struct strbuf sb = STRBUF_INIT;
723 patterns = fopen(arg, "r");
725 die_errno("cannot open '%s'", arg);
726 while (strbuf_getline(&sb, patterns, '\n') == 0) {
730 /* ignore empty line like grep does */
734 s = strbuf_detach(&sb, &len);
735 append_grep_pat(grep_opt, s, len, arg, ++lno, GREP_PATTERN);
742 static int not_callback(const struct option *opt, const char *arg, int unset)
744 struct grep_opt *grep_opt = opt->value;
745 append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT);
749 static int and_callback(const struct option *opt, const char *arg, int unset)
751 struct grep_opt *grep_opt = opt->value;
752 append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND);
756 static int open_callback(const struct option *opt, const char *arg, int unset)
758 struct grep_opt *grep_opt = opt->value;
759 append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN);
763 static int close_callback(const struct option *opt, const char *arg, int unset)
765 struct grep_opt *grep_opt = opt->value;
766 append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN);
770 static int pattern_callback(const struct option *opt, const char *arg,
773 struct grep_opt *grep_opt = opt->value;
774 append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN);
778 static int help_callback(const struct option *opt, const char *arg, int unset)
783 int cmd_grep(int argc, const char **argv, const char *prefix)
787 int seen_dashdash = 0;
788 int external_grep_allowed__ignored;
790 struct object_array list = { 0, 0, NULL };
791 const char **paths = NULL;
794 int nongit = 0, use_index = 1;
795 struct option options[] = {
796 OPT_BOOLEAN(0, "cached", &cached,
797 "search in index instead of in the work tree"),
798 OPT_BOOLEAN(0, "index", &use_index,
799 "--no-index finds in contents not managed by git"),
801 OPT_BOOLEAN('v', "invert-match", &opt.invert,
802 "show non-matching lines"),
803 OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
804 "case insensitive matching"),
805 OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
806 "match patterns only at word boundaries"),
807 OPT_SET_INT('a', "text", &opt.binary,
808 "process binary files as text", GREP_BINARY_TEXT),
809 OPT_SET_INT('I', NULL, &opt.binary,
810 "don't match patterns in binary files",
811 GREP_BINARY_NOMATCH),
812 { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
813 "descend at most <depth> levels", PARSE_OPT_NONEG,
816 OPT_BIT('E', "extended-regexp", &opt.regflags,
817 "use extended POSIX regular expressions", REG_EXTENDED),
818 OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
819 "use basic POSIX regular expressions (default)",
821 OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
822 "interpret patterns as fixed strings"),
824 OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
825 OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
826 OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
827 OPT_NEGBIT(0, "full-name", &opt.relative,
828 "show filenames relative to top directory", 1),
829 OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
830 "show only filenames instead of matching lines"),
831 OPT_BOOLEAN(0, "name-only", &opt.name_only,
832 "synonym for --files-with-matches"),
833 OPT_BOOLEAN('L', "files-without-match",
834 &opt.unmatch_name_only,
835 "show only the names of files without match"),
836 OPT_BOOLEAN('z', "null", &opt.null_following_name,
837 "print NUL after filenames"),
838 OPT_BOOLEAN('c', "count", &opt.count,
839 "show the number of matches instead of matching lines"),
840 OPT__COLOR(&opt.color, "highlight matches"),
842 OPT_CALLBACK('C', NULL, &opt, "n",
843 "show <n> context lines before and after matches",
845 OPT_INTEGER('B', NULL, &opt.pre_context,
846 "show <n> context lines before matches"),
847 OPT_INTEGER('A', NULL, &opt.post_context,
848 "show <n> context lines after matches"),
849 OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
851 OPT_BOOLEAN('p', "show-function", &opt.funcname,
852 "show a line with the function name before matches"),
854 OPT_CALLBACK('f', NULL, &opt, "file",
855 "read patterns from file", file_callback),
856 { OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
857 "match <pattern>", PARSE_OPT_NONEG, pattern_callback },
858 { OPTION_CALLBACK, 0, "and", &opt, NULL,
859 "combine patterns specified with -e",
860 PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
861 OPT_BOOLEAN(0, "or", &dummy, ""),
862 { OPTION_CALLBACK, 0, "not", &opt, NULL, "",
863 PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
864 { OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
865 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
867 { OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
868 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
870 OPT_BOOLEAN('q', "quiet", &opt.status_only,
871 "indicate hit with exit status without output"),
872 OPT_BOOLEAN(0, "all-match", &opt.all_match,
873 "show only matches from files that match all patterns"),
875 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
876 "allow calling of grep(1) (ignored by this build)"),
877 { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
878 PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
882 prefix = setup_git_directory_gently(&nongit);
885 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
886 * to show usage information and exit.
888 if (argc == 2 && !strcmp(argv[1], "-h"))
889 usage_with_options(grep_usage, options);
891 memset(&opt, 0, sizeof(opt));
893 opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
896 opt.pattern_tail = &opt.pattern_list;
897 opt.header_tail = &opt.header_list;
898 opt.regflags = REG_NEWLINE;
901 strcpy(opt.color_context, "");
902 strcpy(opt.color_filename, "");
903 strcpy(opt.color_function, "");
904 strcpy(opt.color_lineno, "");
905 strcpy(opt.color_match, GIT_COLOR_BOLD_RED);
906 strcpy(opt.color_selected, "");
907 strcpy(opt.color_sep, GIT_COLOR_CYAN);
909 git_config(grep_config, &opt);
911 opt.color = git_use_color_default;
914 * If there is no -- then the paths must exist in the working
915 * tree. If there is no explicit pattern specified with -e or
916 * -f, we take the first unrecognized non option to be the
917 * pattern, but then what follows it must be zero or more
918 * valid refs up to the -- (if exists), and then existing
919 * paths. If there is an explicit pattern, then the first
920 * unrecognized non option is the beginning of the refs list
921 * that continues up to the -- (if exists), and then paths.
923 argc = parse_options(argc, argv, prefix, options, grep_usage,
924 PARSE_OPT_KEEP_DASHDASH |
925 PARSE_OPT_STOP_AT_NON_OPTION |
926 PARSE_OPT_NO_INTERNAL_HELP);
928 if (use_index && nongit)
929 /* die the same way as if we did it at the beginning */
930 setup_git_directory();
933 * skip a -- separator; we know it cannot be
934 * separating revisions from pathnames if
935 * we haven't even had any patterns yet
937 if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
942 /* First unrecognized non-option token */
943 if (argc > 0 && !opt.pattern_list) {
944 append_grep_pattern(&opt, argv[0], "command line", 0,
950 if (!opt.pattern_list)
951 die("no pattern given.");
952 if (!opt.fixed && opt.ignore_case)
953 opt.regflags |= REG_ICASE;
954 if ((opt.regflags != REG_NEWLINE) && opt.fixed)
955 die("cannot mix --fixed-strings and regexp");
958 if (online_cpus() == 1 || !grep_threads_ok(&opt))
962 if (opt.pre_context || opt.post_context)
963 print_hunk_marks_between_files = 1;
970 compile_grep_patterns(&opt);
972 /* Check revs and then paths */
973 for (i = 0; i < argc; i++) {
974 const char *arg = argv[i];
975 unsigned char sha1[20];
977 if (!get_sha1(arg, sha1)) {
978 struct object *object = parse_object(sha1);
980 die("bad object %s", arg);
981 add_object_array(object, arg, &list);
984 if (!strcmp(arg, "--")) {
991 /* The rest are paths */
992 if (!seen_dashdash) {
994 for (j = i; j < argc; j++)
995 verify_filename(prefix, argv[j]);
999 paths = get_pathspec(prefix, argv + i);
1001 paths = xcalloc(2, sizeof(const char *));
1009 die("--cached cannot be used with --no-index.");
1011 die("--no-index cannot be used with revs.");
1012 hit = grep_directory(&opt, paths);
1023 hit = grep_cache(&opt, paths, cached);
1030 die("both --cached and trees are given.");
1032 for (i = 0; i < list.nr; i++) {
1033 struct object *real_obj;
1034 real_obj = deref_tag(list.objects[i].item, NULL, 0);
1035 if (grep_object(&opt, paths, real_obj, list.objects[i].name)) {
1037 if (opt.status_only)
1044 free_grep_patterns(&opt);