4 * Copyright (c) 2006 Junio C Hamano
11 #include "tree-walk.h"
13 #include "parse-options.h"
14 #include "string-list.h"
15 #include "run-command.h"
20 #include "thread-utils.h"
22 static char const * const grep_usage[] = {
23 "git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]",
27 static int use_threads = 1;
31 static pthread_t threads[THREADS];
33 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
35 static void *load_file(const char *filename, size_t *sz);
37 enum work_type {WORK_SHA1, WORK_FILE};
39 /* We use one producer thread and THREADS consumer
40 * threads. The producer adds struct work_items to 'todo' and the
41 * consumers pick work items from the same array.
47 /* if type == WORK_SHA1, then 'identifier' is a SHA1,
48 * otherwise type == WORK_FILE, and 'identifier' is a NUL
49 * terminated filename.
56 /* In the range [todo_done, todo_start) in 'todo' we have work_items
57 * that have been or are processed by a consumer thread. We haven't
58 * written the result for these to stdout yet.
60 * The work_items in [todo_start, todo_end) are waiting to be picked
61 * up by a consumer thread.
63 * The ranges are modulo TODO_SIZE.
66 static struct work_item todo[TODO_SIZE];
67 static int todo_start;
71 /* Has all work items been added? */
72 static int all_work_added;
74 /* This lock protects all the variables above. */
75 static pthread_mutex_t grep_mutex;
77 /* Used to serialize calls to read_sha1_file. */
78 static pthread_mutex_t read_sha1_mutex;
80 #define grep_lock() pthread_mutex_lock(&grep_mutex)
81 #define grep_unlock() pthread_mutex_unlock(&grep_mutex)
82 #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex)
83 #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex)
85 /* Signalled when a new work_item is added to todo. */
86 static pthread_cond_t cond_add;
88 /* Signalled when the result from one work_item is written to
91 static pthread_cond_t cond_write;
93 /* Signalled when we are finished with everything. */
94 static pthread_cond_t cond_result;
96 static int print_hunk_marks_between_files;
97 static int printed_something;
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];
163 if (print_hunk_marks_between_files && printed_something)
164 write_or_die(1, "--\n", 3);
165 write_or_die(1, w->out.buf, w->out.len);
166 printed_something = 1;
172 if (old_done != todo_done)
173 pthread_cond_signal(&cond_write);
175 if (all_work_added && todo_done == todo_end)
176 pthread_cond_signal(&cond_result);
181 static void *run(void *arg)
184 struct grep_opt *opt = arg;
187 struct work_item *w = get_work();
191 opt->output_priv = w;
192 if (w->type == WORK_SHA1) {
194 void* data = load_sha1(w->identifier, &sz, w->name);
197 hit |= grep_buffer(opt, w->name, data, sz);
200 } else if (w->type == WORK_FILE) {
202 void* data = load_file(w->identifier, &sz);
204 hit |= grep_buffer(opt, w->name, data, sz);
213 free_grep_patterns(arg);
216 return (void*) (intptr_t) hit;
219 static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size)
221 struct work_item *w = opt->output_priv;
222 strbuf_add(&w->out, buf, size);
225 static void start_threads(struct grep_opt *opt)
229 pthread_mutex_init(&grep_mutex, NULL);
230 pthread_mutex_init(&read_sha1_mutex, NULL);
231 pthread_cond_init(&cond_add, NULL);
232 pthread_cond_init(&cond_write, NULL);
233 pthread_cond_init(&cond_result, NULL);
235 for (i = 0; i < ARRAY_SIZE(todo); i++) {
236 strbuf_init(&todo[i].out, 0);
239 for (i = 0; i < ARRAY_SIZE(threads); i++) {
241 struct grep_opt *o = grep_opt_dup(opt);
242 o->output = strbuf_out;
243 compile_grep_patterns(o);
244 err = pthread_create(&threads[i], NULL, run, o);
247 die("grep: failed to create thread: %s",
252 static int wait_all(void)
260 /* Wait until all work is done. */
261 while (todo_done != todo_end)
262 pthread_cond_wait(&cond_result, &grep_mutex);
264 /* Wake up all the consumer threads so they can see that there
265 * is no more work to do.
267 pthread_cond_broadcast(&cond_add);
270 for (i = 0; i < ARRAY_SIZE(threads); i++) {
272 pthread_join(threads[i], &h);
273 hit |= (int) (intptr_t) h;
276 pthread_mutex_destroy(&grep_mutex);
277 pthread_mutex_destroy(&read_sha1_mutex);
278 pthread_cond_destroy(&cond_add);
279 pthread_cond_destroy(&cond_write);
280 pthread_cond_destroy(&cond_result);
284 #else /* !NO_PTHREADS */
285 #define read_sha1_lock()
286 #define read_sha1_unlock()
288 static int wait_all(void)
294 static int grep_config(const char *var, const char *value, void *cb)
296 struct grep_opt *opt = cb;
299 switch (userdiff_config(var, value)) {
305 if (!strcmp(var, "color.grep"))
306 opt->color = git_config_colorbool(var, value, -1);
307 else if (!strcmp(var, "color.grep.context"))
308 color = opt->color_context;
309 else if (!strcmp(var, "color.grep.filename"))
310 color = opt->color_filename;
311 else if (!strcmp(var, "color.grep.function"))
312 color = opt->color_function;
313 else if (!strcmp(var, "color.grep.linenumber"))
314 color = opt->color_lineno;
315 else if (!strcmp(var, "color.grep.match"))
316 color = opt->color_match;
317 else if (!strcmp(var, "color.grep.selected"))
318 color = opt->color_selected;
319 else if (!strcmp(var, "color.grep.separator"))
320 color = opt->color_sep;
322 return git_color_default_config(var, value, cb);
325 return config_error_nonbool(var);
326 color_parse(value, var, color);
331 static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
337 data = read_sha1_file(sha1, type, size);
340 data = read_sha1_file(sha1, type, size);
345 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
348 enum object_type type;
349 void *data = lock_and_read_sha1_file(sha1, &type, size);
352 error("'%s': unable to read %s", name, sha1_to_hex(sha1));
357 static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1,
358 const char *filename, int tree_name_len)
360 struct strbuf pathbuf = STRBUF_INIT;
363 if (opt->relative && opt->prefix_length) {
364 quote_path_relative(filename + tree_name_len, -1, &pathbuf,
366 strbuf_insert(&pathbuf, 0, filename, tree_name_len);
368 strbuf_addstr(&pathbuf, filename);
371 name = strbuf_detach(&pathbuf, NULL);
375 grep_sha1_async(opt, name, sha1);
382 void *data = load_sha1(sha1, &sz, name);
386 hit = grep_buffer(opt, name, data, sz);
394 static void *load_file(const char *filename, size_t *sz)
400 if (lstat(filename, &st) < 0) {
403 error("'%s': %s", filename, strerror(errno));
406 if (!S_ISREG(st.st_mode))
408 *sz = xsize_t(st.st_size);
409 i = open(filename, O_RDONLY);
412 data = xmalloc(*sz + 1);
413 if (st.st_size != read_in_full(i, data, *sz)) {
414 error("'%s': short read %s", filename, strerror(errno));
424 static int grep_file(struct grep_opt *opt, const char *filename)
426 struct strbuf buf = STRBUF_INIT;
429 if (opt->relative && opt->prefix_length)
430 quote_path_relative(filename, -1, &buf, opt->prefix);
432 strbuf_addstr(&buf, filename);
433 name = strbuf_detach(&buf, NULL);
437 grep_file_async(opt, name, filename);
444 void *data = load_file(filename, &sz);
448 hit = grep_buffer(opt, name, data, sz);
456 static void append_path(struct grep_opt *opt, const void *data, size_t len)
458 struct string_list *path_list = opt->output_priv;
460 if (len == 1 && *(const char *)data == '\0')
462 string_list_append(path_list, xstrndup(data, len));
465 static void run_pager(struct grep_opt *opt, const char *prefix)
467 struct string_list *path_list = opt->output_priv;
468 const char **argv = xmalloc(sizeof(const char *) * (path_list->nr + 1));
471 for (i = 0; i < path_list->nr; i++)
472 argv[i] = path_list->items[i].string;
473 argv[path_list->nr] = NULL;
475 if (prefix && chdir(prefix))
476 die("Failed to chdir: %s", prefix);
477 status = run_command_v_opt(argv, RUN_USING_SHELL);
483 static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached)
489 for (nr = 0; nr < active_nr; nr++) {
490 struct cache_entry *ce = active_cache[nr];
491 if (!S_ISREG(ce->ce_mode))
493 if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL))
496 * If CE_VALID is on, we assume worktree file and its cache entry
497 * are identical, even if worktree file has been modified, so use
498 * cache version instead
500 if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) {
503 hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
506 hit |= grep_file(opt, ce->name);
510 } while (nr < active_nr &&
511 !strcmp(ce->name, active_cache[nr]->name));
512 nr--; /* compensate for loop control */
514 if (hit && opt->status_only)
520 static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec,
521 struct tree_desc *tree, struct strbuf *base, int tn_len)
523 int hit = 0, matched = 0;
524 struct name_entry entry;
525 int old_baselen = base->len;
527 while (tree_entry(tree, &entry)) {
528 int te_len = tree_entry_len(entry.path, entry.sha1);
531 matched = tree_entry_interesting(&entry, base, tn_len, pathspec);
533 break; /* no more matches */
538 strbuf_add(base, entry.path, te_len);
540 if (S_ISREG(entry.mode)) {
541 hit |= grep_sha1(opt, entry.sha1, base->buf, tn_len);
543 else if (S_ISDIR(entry.mode)) {
544 enum object_type type;
545 struct tree_desc sub;
549 data = lock_and_read_sha1_file(entry.sha1, &type, &size);
551 die("unable to read tree (%s)",
552 sha1_to_hex(entry.sha1));
554 strbuf_addch(base, '/');
555 init_tree_desc(&sub, data, size);
556 hit |= grep_tree(opt, pathspec, &sub, base, tn_len);
559 strbuf_setlen(base, old_baselen);
561 if (hit && opt->status_only)
567 static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
568 struct object *obj, const char *name)
570 if (obj->type == OBJ_BLOB)
571 return grep_sha1(opt, obj->sha1, name, 0);
572 if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
573 struct tree_desc tree;
579 data = read_object_with_reference(obj->sha1, tree_type,
582 die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
584 len = name ? strlen(name) : 0;
585 strbuf_init(&base, PATH_MAX + len + 1);
587 strbuf_add(&base, name, len);
588 strbuf_addch(&base, ':');
590 init_tree_desc(&tree, data, size);
591 hit = grep_tree(opt, pathspec, &tree, &base, base.len);
592 strbuf_release(&base);
596 die("unable to grep from object of type %s", typename(obj->type));
599 static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
600 const struct object_array *list)
604 const unsigned int nr = list->nr;
606 for (i = 0; i < nr; i++) {
607 struct object *real_obj;
608 real_obj = deref_tag(list->objects[i].item, NULL, 0);
609 if (grep_object(opt, pathspec, real_obj, list->objects[i].name)) {
611 if (opt->status_only)
618 static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec)
620 struct dir_struct dir;
623 memset(&dir, 0, sizeof(dir));
624 setup_standard_excludes(&dir);
626 fill_directory(&dir, pathspec->raw);
627 for (i = 0; i < dir.nr; i++) {
628 const char *name = dir.entries[i]->name;
629 int namelen = strlen(name);
630 if (!match_pathspec_depth(pathspec, name, namelen, 0, NULL))
632 hit |= grep_file(opt, dir.entries[i]->name);
633 if (hit && opt->status_only)
639 static int context_callback(const struct option *opt, const char *arg,
642 struct grep_opt *grep_opt = opt->value;
647 grep_opt->pre_context = grep_opt->post_context = 0;
650 value = strtol(arg, (char **)&endp, 10);
652 return error("switch `%c' expects a numerical value",
655 grep_opt->pre_context = grep_opt->post_context = value;
659 static int file_callback(const struct option *opt, const char *arg, int unset)
661 struct grep_opt *grep_opt = opt->value;
662 int from_stdin = !strcmp(arg, "-");
665 struct strbuf sb = STRBUF_INIT;
667 patterns = from_stdin ? stdin : fopen(arg, "r");
669 die_errno("cannot open '%s'", arg);
670 while (strbuf_getline(&sb, patterns, '\n') == 0) {
674 /* ignore empty line like grep does */
678 s = strbuf_detach(&sb, &len);
679 append_grep_pat(grep_opt, s, len, arg, ++lno, GREP_PATTERN);
687 static int not_callback(const struct option *opt, const char *arg, int unset)
689 struct grep_opt *grep_opt = opt->value;
690 append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT);
694 static int and_callback(const struct option *opt, const char *arg, int unset)
696 struct grep_opt *grep_opt = opt->value;
697 append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND);
701 static int open_callback(const struct option *opt, const char *arg, int unset)
703 struct grep_opt *grep_opt = opt->value;
704 append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN);
708 static int close_callback(const struct option *opt, const char *arg, int unset)
710 struct grep_opt *grep_opt = opt->value;
711 append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN);
715 static int pattern_callback(const struct option *opt, const char *arg,
718 struct grep_opt *grep_opt = opt->value;
719 append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN);
723 static int help_callback(const struct option *opt, const char *arg, int unset)
728 int cmd_grep(int argc, const char **argv, const char *prefix)
732 int seen_dashdash = 0;
733 int external_grep_allowed__ignored;
734 const char *show_in_pager = NULL, *default_pager = "dummy";
736 struct object_array list = OBJECT_ARRAY_INIT;
737 const char **paths = NULL;
738 struct pathspec pathspec;
739 struct string_list path_list = STRING_LIST_INIT_NODUP;
743 struct option options[] = {
744 OPT_BOOLEAN(0, "cached", &cached,
745 "search in index instead of in the work tree"),
746 OPT_BOOLEAN(0, "index", &use_index,
747 "--no-index finds in contents not managed by git"),
749 OPT_BOOLEAN('v', "invert-match", &opt.invert,
750 "show non-matching lines"),
751 OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
752 "case insensitive matching"),
753 OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
754 "match patterns only at word boundaries"),
755 OPT_SET_INT('a', "text", &opt.binary,
756 "process binary files as text", GREP_BINARY_TEXT),
757 OPT_SET_INT('I', NULL, &opt.binary,
758 "don't match patterns in binary files",
759 GREP_BINARY_NOMATCH),
760 { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
761 "descend at most <depth> levels", PARSE_OPT_NONEG,
764 OPT_BIT('E', "extended-regexp", &opt.regflags,
765 "use extended POSIX regular expressions", REG_EXTENDED),
766 OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
767 "use basic POSIX regular expressions (default)",
769 OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
770 "interpret patterns as fixed strings"),
772 OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
773 OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
774 OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
775 OPT_NEGBIT(0, "full-name", &opt.relative,
776 "show filenames relative to top directory", 1),
777 OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
778 "show only filenames instead of matching lines"),
779 OPT_BOOLEAN(0, "name-only", &opt.name_only,
780 "synonym for --files-with-matches"),
781 OPT_BOOLEAN('L', "files-without-match",
782 &opt.unmatch_name_only,
783 "show only the names of files without match"),
784 OPT_BOOLEAN('z', "null", &opt.null_following_name,
785 "print NUL after filenames"),
786 OPT_BOOLEAN('c', "count", &opt.count,
787 "show the number of matches instead of matching lines"),
788 OPT__COLOR(&opt.color, "highlight matches"),
790 OPT_CALLBACK('C', NULL, &opt, "n",
791 "show <n> context lines before and after matches",
793 OPT_INTEGER('B', NULL, &opt.pre_context,
794 "show <n> context lines before matches"),
795 OPT_INTEGER('A', NULL, &opt.post_context,
796 "show <n> context lines after matches"),
797 OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
799 OPT_BOOLEAN('p', "show-function", &opt.funcname,
800 "show a line with the function name before matches"),
802 OPT_CALLBACK('f', NULL, &opt, "file",
803 "read patterns from file", file_callback),
804 { OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
805 "match <pattern>", PARSE_OPT_NONEG, pattern_callback },
806 { OPTION_CALLBACK, 0, "and", &opt, NULL,
807 "combine patterns specified with -e",
808 PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
809 OPT_BOOLEAN(0, "or", &dummy, ""),
810 { OPTION_CALLBACK, 0, "not", &opt, NULL, "",
811 PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
812 { OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
813 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
815 { OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
816 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
818 OPT__QUIET(&opt.status_only,
819 "indicate hit with exit status without output"),
820 OPT_BOOLEAN(0, "all-match", &opt.all_match,
821 "show only matches from files that match all patterns"),
823 { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager,
824 "pager", "show matching files in the pager",
825 PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager },
826 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
827 "allow calling of grep(1) (ignored by this build)"),
828 { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
829 PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
834 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
835 * to show usage information and exit.
837 if (argc == 2 && !strcmp(argv[1], "-h"))
838 usage_with_options(grep_usage, options);
840 memset(&opt, 0, sizeof(opt));
842 opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
845 opt.pattern_tail = &opt.pattern_list;
846 opt.header_tail = &opt.header_list;
847 opt.regflags = REG_NEWLINE;
850 strcpy(opt.color_context, "");
851 strcpy(opt.color_filename, "");
852 strcpy(opt.color_function, "");
853 strcpy(opt.color_lineno, "");
854 strcpy(opt.color_match, GIT_COLOR_BOLD_RED);
855 strcpy(opt.color_selected, "");
856 strcpy(opt.color_sep, GIT_COLOR_CYAN);
858 git_config(grep_config, &opt);
860 opt.color = git_use_color_default;
863 * If there is no -- then the paths must exist in the working
864 * tree. If there is no explicit pattern specified with -e or
865 * -f, we take the first unrecognized non option to be the
866 * pattern, but then what follows it must be zero or more
867 * valid refs up to the -- (if exists), and then existing
868 * paths. If there is an explicit pattern, then the first
869 * unrecognized non option is the beginning of the refs list
870 * that continues up to the -- (if exists), and then paths.
872 argc = parse_options(argc, argv, prefix, options, grep_usage,
873 PARSE_OPT_KEEP_DASHDASH |
874 PARSE_OPT_STOP_AT_NON_OPTION |
875 PARSE_OPT_NO_INTERNAL_HELP);
877 if (use_index && !startup_info->have_repository)
878 /* die the same way as if we did it at the beginning */
879 setup_git_directory();
882 * skip a -- separator; we know it cannot be
883 * separating revisions from pathnames if
884 * we haven't even had any patterns yet
886 if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
891 /* First unrecognized non-option token */
892 if (argc > 0 && !opt.pattern_list) {
893 append_grep_pattern(&opt, argv[0], "command line", 0,
899 if (show_in_pager == default_pager)
900 show_in_pager = git_pager(1);
904 opt.null_following_name = 1;
905 opt.output_priv = &path_list;
906 opt.output = append_path;
907 string_list_append(&path_list, show_in_pager);
911 if (!opt.pattern_list)
912 die("no pattern given.");
913 if (!opt.fixed && opt.ignore_case)
914 opt.regflags |= REG_ICASE;
915 if ((opt.regflags != REG_NEWLINE) && opt.fixed)
916 die("cannot mix --fixed-strings and regexp");
919 if (online_cpus() == 1 || !grep_threads_ok(&opt))
923 if (opt.pre_context || opt.post_context)
924 print_hunk_marks_between_files = 1;
931 compile_grep_patterns(&opt);
933 /* Check revs and then paths */
934 for (i = 0; i < argc; i++) {
935 const char *arg = argv[i];
936 unsigned char sha1[20];
938 if (!get_sha1(arg, sha1)) {
939 struct object *object = parse_object(sha1);
941 die("bad object %s", arg);
942 add_object_array(object, arg, &list);
945 if (!strcmp(arg, "--")) {
952 /* The rest are paths */
953 if (!seen_dashdash) {
955 for (j = i; j < argc; j++)
956 verify_filename(prefix, argv[j]);
960 paths = get_pathspec(prefix, argv + i);
962 paths = xcalloc(2, sizeof(const char *));
966 init_pathspec(&pathspec, paths);
967 pathspec.max_depth = opt.max_depth;
968 pathspec.recursive = 1;
970 if (show_in_pager && (cached || list.nr))
971 die("--open-files-in-pager only works on the worktree");
973 if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) {
974 const char *pager = path_list.items[0].string;
975 int len = strlen(pager);
977 if (len > 4 && is_dir_sep(pager[len - 5]))
980 if (!strcmp("less", pager) || !strcmp("vi", pager)) {
981 struct strbuf buf = STRBUF_INIT;
982 strbuf_addf(&buf, "+/%s%s",
983 strcmp("less", pager) ? "" : "*",
984 opt.pattern_list->pattern);
985 string_list_append(&path_list, buf.buf);
986 strbuf_detach(&buf, NULL);
996 die("--cached cannot be used with --no-index.");
998 die("--no-index cannot be used with revs.");
999 hit = grep_directory(&opt, &pathspec);
1000 } else if (!list.nr) {
1004 hit = grep_cache(&opt, &pathspec, cached);
1007 die("both --cached and trees are given.");
1008 hit = grep_objects(&opt, &pathspec, &list);
1013 if (hit && show_in_pager)
1014 run_pager(&opt, prefix);
1015 free_grep_patterns(&opt);