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"
23 static char const * const grep_usage
[] = {
24 N_("git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]"),
28 static int use_threads
= 1;
32 static pthread_t threads
[THREADS
];
34 /* We use one producer thread and THREADS consumer
35 * threads. The producer adds struct work_items to 'todo' and the
36 * consumers pick work items from the same array.
39 struct grep_source source
;
44 /* In the range [todo_done, todo_start) in 'todo' we have work_items
45 * that have been or are processed by a consumer thread. We haven't
46 * written the result for these to stdout yet.
48 * The work_items in [todo_start, todo_end) are waiting to be picked
49 * up by a consumer thread.
51 * The ranges are modulo TODO_SIZE.
54 static struct work_item todo
[TODO_SIZE
];
55 static int todo_start
;
59 /* Has all work items been added? */
60 static int all_work_added
;
62 /* This lock protects all the variables above. */
63 static pthread_mutex_t grep_mutex
;
65 static inline void grep_lock(void)
68 pthread_mutex_lock(&grep_mutex
);
71 static inline void grep_unlock(void)
74 pthread_mutex_unlock(&grep_mutex
);
77 /* Signalled when a new work_item is added to todo. */
78 static pthread_cond_t cond_add
;
80 /* Signalled when the result from one work_item is written to
83 static pthread_cond_t cond_write
;
85 /* Signalled when we are finished with everything. */
86 static pthread_cond_t cond_result
;
88 static int skip_first_line
;
90 static void add_work(struct grep_opt
*opt
, enum grep_source_type type
,
91 const char *name
, const char *path
, const void *id
)
95 while ((todo_end
+1) % ARRAY_SIZE(todo
) == todo_done
) {
96 pthread_cond_wait(&cond_write
, &grep_mutex
);
99 grep_source_init(&todo
[todo_end
].source
, type
, name
, path
, id
);
100 if (opt
->binary
!= GREP_BINARY_TEXT
)
101 grep_source_load_driver(&todo
[todo_end
].source
);
102 todo
[todo_end
].done
= 0;
103 strbuf_reset(&todo
[todo_end
].out
);
104 todo_end
= (todo_end
+ 1) % ARRAY_SIZE(todo
);
106 pthread_cond_signal(&cond_add
);
110 static struct work_item
*get_work(void)
112 struct work_item
*ret
;
115 while (todo_start
== todo_end
&& !all_work_added
) {
116 pthread_cond_wait(&cond_add
, &grep_mutex
);
119 if (todo_start
== todo_end
&& all_work_added
) {
122 ret
= &todo
[todo_start
];
123 todo_start
= (todo_start
+ 1) % ARRAY_SIZE(todo
);
129 static void work_done(struct work_item
*w
)
135 old_done
= todo_done
;
136 for(; todo
[todo_done
].done
&& todo_done
!= todo_start
;
137 todo_done
= (todo_done
+1) % ARRAY_SIZE(todo
)) {
138 w
= &todo
[todo_done
];
140 const char *p
= w
->out
.buf
;
141 size_t len
= w
->out
.len
;
143 /* Skip the leading hunk mark of the first file. */
144 if (skip_first_line
) {
153 write_or_die(1, p
, len
);
155 grep_source_clear(&w
->source
);
158 if (old_done
!= todo_done
)
159 pthread_cond_signal(&cond_write
);
161 if (all_work_added
&& todo_done
== todo_end
)
162 pthread_cond_signal(&cond_result
);
167 static int skip_binary(struct grep_opt
*opt
, const char *filename
)
169 if ((opt
->binary
& GREP_BINARY_NOMATCH
)) {
170 static struct git_attr
*attr_text
;
171 struct git_attr_check check
;
174 attr_text
= git_attr("text");
175 memset(&check
, 0, sizeof(check
));
176 check
.attr
= attr_text
;
177 return !git_check_attr(filename
, 1, &check
) &&
178 ATTR_FALSE(check
.value
);
183 static void *run(void *arg
)
186 struct grep_opt
*opt
= arg
;
189 struct work_item
*w
= get_work();
193 if (skip_binary(opt
, (const char *)w
->source
.identifier
))
196 opt
->output_priv
= w
;
197 hit
|= grep_source(opt
, &w
->source
);
198 grep_source_clear_data(&w
->source
);
201 free_grep_patterns(arg
);
204 return (void*) (intptr_t) hit
;
207 static void strbuf_out(struct grep_opt
*opt
, const void *buf
, size_t size
)
209 struct work_item
*w
= opt
->output_priv
;
210 strbuf_add(&w
->out
, buf
, size
);
213 static void start_threads(struct grep_opt
*opt
)
217 pthread_mutex_init(&grep_mutex
, NULL
);
218 pthread_mutex_init(&grep_read_mutex
, NULL
);
219 pthread_mutex_init(&grep_attr_mutex
, NULL
);
220 pthread_cond_init(&cond_add
, NULL
);
221 pthread_cond_init(&cond_write
, NULL
);
222 pthread_cond_init(&cond_result
, NULL
);
225 for (i
= 0; i
< ARRAY_SIZE(todo
); i
++) {
226 strbuf_init(&todo
[i
].out
, 0);
229 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
231 struct grep_opt
*o
= grep_opt_dup(opt
);
232 o
->output
= strbuf_out
;
234 compile_grep_patterns(o
);
235 err
= pthread_create(&threads
[i
], NULL
, run
, o
);
238 die(_("grep: failed to create thread: %s"),
243 static int wait_all(void)
251 /* Wait until all work is done. */
252 while (todo_done
!= todo_end
)
253 pthread_cond_wait(&cond_result
, &grep_mutex
);
255 /* Wake up all the consumer threads so they can see that there
256 * is no more work to do.
258 pthread_cond_broadcast(&cond_add
);
261 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
263 pthread_join(threads
[i
], &h
);
264 hit
|= (int) (intptr_t) h
;
267 pthread_mutex_destroy(&grep_mutex
);
268 pthread_mutex_destroy(&grep_read_mutex
);
269 pthread_mutex_destroy(&grep_attr_mutex
);
270 pthread_cond_destroy(&cond_add
);
271 pthread_cond_destroy(&cond_write
);
272 pthread_cond_destroy(&cond_result
);
277 #else /* !NO_PTHREADS */
279 static int wait_all(void)
285 static int grep_cmd_config(const char *var
, const char *value
, void *cb
)
287 int st
= grep_config(var
, value
, cb
);
288 if (git_color_default_config(var
, value
, cb
) < 0)
293 static void *lock_and_read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
298 data
= read_sha1_file(sha1
, type
, size
);
303 static int grep_sha1(struct grep_opt
*opt
, const unsigned char *sha1
,
304 const char *filename
, int tree_name_len
,
307 struct strbuf pathbuf
= STRBUF_INIT
;
309 if (opt
->relative
&& opt
->prefix_length
) {
310 quote_path_relative(filename
+ tree_name_len
, opt
->prefix
, &pathbuf
);
311 strbuf_insert(&pathbuf
, 0, filename
, tree_name_len
);
313 strbuf_addstr(&pathbuf
, filename
);
318 add_work(opt
, GREP_SOURCE_SHA1
, pathbuf
.buf
, path
, sha1
);
319 strbuf_release(&pathbuf
);
324 struct grep_source gs
;
327 grep_source_init(&gs
, GREP_SOURCE_SHA1
, pathbuf
.buf
, path
, sha1
);
328 strbuf_release(&pathbuf
);
329 hit
= grep_source(opt
, &gs
);
331 grep_source_clear(&gs
);
336 static int grep_file(struct grep_opt
*opt
, const char *filename
)
338 struct strbuf buf
= STRBUF_INIT
;
340 if (opt
->relative
&& opt
->prefix_length
)
341 quote_path_relative(filename
, opt
->prefix
, &buf
);
343 strbuf_addstr(&buf
, filename
);
347 add_work(opt
, GREP_SOURCE_FILE
, buf
.buf
, filename
, filename
);
348 strbuf_release(&buf
);
353 struct grep_source gs
;
356 grep_source_init(&gs
, GREP_SOURCE_FILE
, buf
.buf
, filename
, filename
);
357 strbuf_release(&buf
);
358 hit
= grep_source(opt
, &gs
);
360 grep_source_clear(&gs
);
365 static void append_path(struct grep_opt
*opt
, const void *data
, size_t len
)
367 struct string_list
*path_list
= opt
->output_priv
;
369 if (len
== 1 && *(const char *)data
== '\0')
371 string_list_append(path_list
, xstrndup(data
, len
));
374 static void run_pager(struct grep_opt
*opt
, const char *prefix
)
376 struct string_list
*path_list
= opt
->output_priv
;
377 const char **argv
= xmalloc(sizeof(const char *) * (path_list
->nr
+ 1));
380 for (i
= 0; i
< path_list
->nr
; i
++)
381 argv
[i
] = path_list
->items
[i
].string
;
382 argv
[path_list
->nr
] = NULL
;
384 if (prefix
&& chdir(prefix
))
385 die(_("Failed to chdir: %s"), prefix
);
386 status
= run_command_v_opt(argv
, RUN_USING_SHELL
);
392 static int grep_cache(struct grep_opt
*opt
, const struct pathspec
*pathspec
, int cached
)
398 for (nr
= 0; nr
< active_nr
; nr
++) {
399 const struct cache_entry
*ce
= active_cache
[nr
];
400 if (!S_ISREG(ce
->ce_mode
))
402 if (!match_pathspec_depth(pathspec
, ce
->name
, ce_namelen(ce
), 0, NULL
))
404 if (skip_binary(opt
, ce
->name
))
408 * If CE_VALID is on, we assume worktree file and its cache entry
409 * are identical, even if worktree file has been modified, so use
410 * cache version instead
412 if (cached
|| (ce
->ce_flags
& CE_VALID
) || ce_skip_worktree(ce
)) {
415 hit
|= grep_sha1(opt
, ce
->sha1
, ce
->name
, 0, ce
->name
);
418 hit
|= grep_file(opt
, ce
->name
);
422 } while (nr
< active_nr
&&
423 !strcmp(ce
->name
, active_cache
[nr
]->name
));
424 nr
--; /* compensate for loop control */
426 if (hit
&& opt
->status_only
)
432 static int grep_tree(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
433 struct tree_desc
*tree
, struct strbuf
*base
, int tn_len
,
437 enum interesting match
= entry_not_interesting
;
438 struct name_entry entry
;
439 int old_baselen
= base
->len
;
441 while (tree_entry(tree
, &entry
)) {
442 int te_len
= tree_entry_len(&entry
);
444 if (match
!= all_entries_interesting
) {
445 match
= tree_entry_interesting(&entry
, base
, tn_len
, pathspec
);
446 if (match
== all_entries_not_interesting
)
448 if (match
== entry_not_interesting
)
452 strbuf_add(base
, entry
.path
, te_len
);
454 if (S_ISREG(entry
.mode
)) {
455 hit
|= grep_sha1(opt
, entry
.sha1
, base
->buf
, tn_len
,
456 check_attr
? base
->buf
+ tn_len
: NULL
);
458 else if (S_ISDIR(entry
.mode
)) {
459 enum object_type type
;
460 struct tree_desc sub
;
464 data
= lock_and_read_sha1_file(entry
.sha1
, &type
, &size
);
466 die(_("unable to read tree (%s)"),
467 sha1_to_hex(entry
.sha1
));
469 strbuf_addch(base
, '/');
470 init_tree_desc(&sub
, data
, size
);
471 hit
|= grep_tree(opt
, pathspec
, &sub
, base
, tn_len
,
475 strbuf_setlen(base
, old_baselen
);
477 if (hit
&& opt
->status_only
)
483 static int grep_object(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
484 struct object
*obj
, const char *name
, struct object_context
*oc
)
486 if (obj
->type
== OBJ_BLOB
)
487 return grep_sha1(opt
, obj
->sha1
, name
, 0, oc
? oc
->path
: NULL
);
488 if (obj
->type
== OBJ_COMMIT
|| obj
->type
== OBJ_TREE
) {
489 struct tree_desc tree
;
496 data
= read_object_with_reference(obj
->sha1
, tree_type
,
501 die(_("unable to read tree (%s)"), sha1_to_hex(obj
->sha1
));
503 len
= name
? strlen(name
) : 0;
504 strbuf_init(&base
, PATH_MAX
+ len
+ 1);
506 strbuf_add(&base
, name
, len
);
507 strbuf_addch(&base
, ':');
509 init_tree_desc(&tree
, data
, size
);
510 hit
= grep_tree(opt
, pathspec
, &tree
, &base
, base
.len
,
511 obj
->type
== OBJ_COMMIT
);
512 strbuf_release(&base
);
516 die(_("unable to grep from object of type %s"), typename(obj
->type
));
519 static int grep_objects(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
520 const struct object_array
*list
)
524 const unsigned int nr
= list
->nr
;
526 for (i
= 0; i
< nr
; i
++) {
527 struct object
*real_obj
;
528 real_obj
= deref_tag(list
->objects
[i
].item
, NULL
, 0);
529 if (grep_object(opt
, pathspec
, real_obj
, list
->objects
[i
].name
, list
->objects
[i
].context
)) {
531 if (opt
->status_only
)
538 static int grep_directory(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
541 struct dir_struct dir
;
544 memset(&dir
, 0, sizeof(dir
));
546 setup_standard_excludes(&dir
);
548 fill_directory(&dir
, pathspec
);
549 for (i
= 0; i
< dir
.nr
; i
++) {
550 const char *name
= dir
.entries
[i
]->name
;
551 int namelen
= strlen(name
);
552 if (!match_pathspec_depth(pathspec
, name
, namelen
, 0, NULL
))
554 hit
|= grep_file(opt
, dir
.entries
[i
]->name
);
555 if (hit
&& opt
->status_only
)
561 static int context_callback(const struct option
*opt
, const char *arg
,
564 struct grep_opt
*grep_opt
= opt
->value
;
569 grep_opt
->pre_context
= grep_opt
->post_context
= 0;
572 value
= strtol(arg
, (char **)&endp
, 10);
574 return error(_("switch `%c' expects a numerical value"),
577 grep_opt
->pre_context
= grep_opt
->post_context
= value
;
581 static int file_callback(const struct option
*opt
, const char *arg
, int unset
)
583 struct grep_opt
*grep_opt
= opt
->value
;
584 int from_stdin
= !strcmp(arg
, "-");
587 struct strbuf sb
= STRBUF_INIT
;
589 patterns
= from_stdin
? stdin
: fopen(arg
, "r");
591 die_errno(_("cannot open '%s'"), arg
);
592 while (strbuf_getline(&sb
, patterns
, '\n') == 0) {
593 /* ignore empty line like grep does */
597 append_grep_pat(grep_opt
, sb
.buf
, sb
.len
, arg
, ++lno
,
606 static int not_callback(const struct option
*opt
, const char *arg
, int unset
)
608 struct grep_opt
*grep_opt
= opt
->value
;
609 append_grep_pattern(grep_opt
, "--not", "command line", 0, GREP_NOT
);
613 static int and_callback(const struct option
*opt
, const char *arg
, int unset
)
615 struct grep_opt
*grep_opt
= opt
->value
;
616 append_grep_pattern(grep_opt
, "--and", "command line", 0, GREP_AND
);
620 static int open_callback(const struct option
*opt
, const char *arg
, int unset
)
622 struct grep_opt
*grep_opt
= opt
->value
;
623 append_grep_pattern(grep_opt
, "(", "command line", 0, GREP_OPEN_PAREN
);
627 static int close_callback(const struct option
*opt
, const char *arg
, int unset
)
629 struct grep_opt
*grep_opt
= opt
->value
;
630 append_grep_pattern(grep_opt
, ")", "command line", 0, GREP_CLOSE_PAREN
);
634 static int pattern_callback(const struct option
*opt
, const char *arg
,
637 struct grep_opt
*grep_opt
= opt
->value
;
638 append_grep_pattern(grep_opt
, arg
, "-e option", 0, GREP_PATTERN
);
642 static int help_callback(const struct option
*opt
, const char *arg
, int unset
)
647 int cmd_grep(int argc
, const char **argv
, const char *prefix
)
650 int cached
= 0, untracked
= 0, opt_exclude
= -1;
651 int seen_dashdash
= 0;
652 int external_grep_allowed__ignored
;
653 const char *show_in_pager
= NULL
, *default_pager
= "dummy";
655 struct object_array list
= OBJECT_ARRAY_INIT
;
656 struct pathspec pathspec
;
657 struct string_list path_list
= STRING_LIST_INIT_NODUP
;
661 int pattern_type_arg
= GREP_PATTERN_TYPE_UNSPECIFIED
;
663 struct option options
[] = {
664 OPT_BOOL(0, "cached", &cached
,
665 N_("search in index instead of in the work tree")),
666 OPT_NEGBIT(0, "no-index", &use_index
,
667 N_("find in contents not managed by git"), 1),
668 OPT_BOOL(0, "untracked", &untracked
,
669 N_("search in both tracked and untracked files")),
670 OPT_SET_INT(0, "exclude-standard", &opt_exclude
,
671 N_("search also in ignored files"), 1),
673 OPT_BOOL('v', "invert-match", &opt
.invert
,
674 N_("show non-matching lines")),
675 OPT_BOOL('i', "ignore-case", &opt
.ignore_case
,
676 N_("case insensitive matching")),
677 OPT_BOOL('w', "word-regexp", &opt
.word_regexp
,
678 N_("match patterns only at word boundaries")),
679 OPT_SET_INT('a', "text", &opt
.binary
,
680 N_("process binary files as text"), GREP_BINARY_TEXT
),
681 OPT_SET_INT('I', NULL
, &opt
.binary
,
682 N_("don't match patterns in binary files"),
683 GREP_BINARY_NOMATCH
),
684 OPT_BOOL(0, "textconv", &opt
.allow_textconv
,
685 N_("process binary files with textconv filters")),
686 { OPTION_INTEGER
, 0, "max-depth", &opt
.max_depth
, N_("depth"),
687 N_("descend at most <depth> levels"), PARSE_OPT_NONEG
,
690 OPT_SET_INT('E', "extended-regexp", &pattern_type_arg
,
691 N_("use extended POSIX regular expressions"),
692 GREP_PATTERN_TYPE_ERE
),
693 OPT_SET_INT('G', "basic-regexp", &pattern_type_arg
,
694 N_("use basic POSIX regular expressions (default)"),
695 GREP_PATTERN_TYPE_BRE
),
696 OPT_SET_INT('F', "fixed-strings", &pattern_type_arg
,
697 N_("interpret patterns as fixed strings"),
698 GREP_PATTERN_TYPE_FIXED
),
699 OPT_SET_INT('P', "perl-regexp", &pattern_type_arg
,
700 N_("use Perl-compatible regular expressions"),
701 GREP_PATTERN_TYPE_PCRE
),
703 OPT_BOOL('n', "line-number", &opt
.linenum
, N_("show line numbers")),
704 OPT_NEGBIT('h', NULL
, &opt
.pathname
, N_("don't show filenames"), 1),
705 OPT_BIT('H', NULL
, &opt
.pathname
, N_("show filenames"), 1),
706 OPT_NEGBIT(0, "full-name", &opt
.relative
,
707 N_("show filenames relative to top directory"), 1),
708 OPT_BOOL('l', "files-with-matches", &opt
.name_only
,
709 N_("show only filenames instead of matching lines")),
710 OPT_BOOL(0, "name-only", &opt
.name_only
,
711 N_("synonym for --files-with-matches")),
712 OPT_BOOL('L', "files-without-match",
713 &opt
.unmatch_name_only
,
714 N_("show only the names of files without match")),
715 OPT_BOOL('z', "null", &opt
.null_following_name
,
716 N_("print NUL after filenames")),
717 OPT_BOOL('c', "count", &opt
.count
,
718 N_("show the number of matches instead of matching lines")),
719 OPT__COLOR(&opt
.color
, N_("highlight matches")),
720 OPT_BOOL(0, "break", &opt
.file_break
,
721 N_("print empty line between matches from different files")),
722 OPT_BOOL(0, "heading", &opt
.heading
,
723 N_("show filename only once above matches from same file")),
725 OPT_CALLBACK('C', "context", &opt
, N_("n"),
726 N_("show <n> context lines before and after matches"),
728 OPT_INTEGER('B', "before-context", &opt
.pre_context
,
729 N_("show <n> context lines before matches")),
730 OPT_INTEGER('A', "after-context", &opt
.post_context
,
731 N_("show <n> context lines after matches")),
732 OPT_NUMBER_CALLBACK(&opt
, N_("shortcut for -C NUM"),
734 OPT_BOOL('p', "show-function", &opt
.funcname
,
735 N_("show a line with the function name before matches")),
736 OPT_BOOL('W', "function-context", &opt
.funcbody
,
737 N_("show the surrounding function")),
739 OPT_CALLBACK('f', NULL
, &opt
, N_("file"),
740 N_("read patterns from file"), file_callback
),
741 { OPTION_CALLBACK
, 'e', NULL
, &opt
, N_("pattern"),
742 N_("match <pattern>"), PARSE_OPT_NONEG
, pattern_callback
},
743 { OPTION_CALLBACK
, 0, "and", &opt
, NULL
,
744 N_("combine patterns specified with -e"),
745 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, and_callback
},
746 OPT_BOOL(0, "or", &dummy
, ""),
747 { OPTION_CALLBACK
, 0, "not", &opt
, NULL
, "",
748 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, not_callback
},
749 { OPTION_CALLBACK
, '(', NULL
, &opt
, NULL
, "",
750 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
752 { OPTION_CALLBACK
, ')', NULL
, &opt
, NULL
, "",
753 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
755 OPT__QUIET(&opt
.status_only
,
756 N_("indicate hit with exit status without output")),
757 OPT_BOOL(0, "all-match", &opt
.all_match
,
758 N_("show only matches from files that match all patterns")),
759 { OPTION_SET_INT
, 0, "debug", &opt
.debug
, NULL
,
760 N_("show parse tree for grep expression"),
761 PARSE_OPT_NOARG
| PARSE_OPT_HIDDEN
, NULL
, 1 },
763 { OPTION_STRING
, 'O', "open-files-in-pager", &show_in_pager
,
764 N_("pager"), N_("show matching files in the pager"),
765 PARSE_OPT_OPTARG
, NULL
, (intptr_t)default_pager
},
766 OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored
,
767 N_("allow calling of grep(1) (ignored by this build)")),
768 { OPTION_CALLBACK
, 0, "help-all", &options
, NULL
, N_("show usage"),
769 PARSE_OPT_HIDDEN
| PARSE_OPT_NOARG
, help_callback
},
774 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
775 * to show usage information and exit.
777 if (argc
== 2 && !strcmp(argv
[1], "-h"))
778 usage_with_options(grep_usage
, options
);
780 init_grep_defaults();
781 git_config(grep_cmd_config
, NULL
);
782 grep_init(&opt
, prefix
);
785 * If there is no -- then the paths must exist in the working
786 * tree. If there is no explicit pattern specified with -e or
787 * -f, we take the first unrecognized non option to be the
788 * pattern, but then what follows it must be zero or more
789 * valid refs up to the -- (if exists), and then existing
790 * paths. If there is an explicit pattern, then the first
791 * unrecognized non option is the beginning of the refs list
792 * that continues up to the -- (if exists), and then paths.
794 argc
= parse_options(argc
, argv
, prefix
, options
, grep_usage
,
795 PARSE_OPT_KEEP_DASHDASH
|
796 PARSE_OPT_STOP_AT_NON_OPTION
|
797 PARSE_OPT_NO_INTERNAL_HELP
);
798 grep_commit_pattern_type(pattern_type_arg
, &opt
);
800 if (use_index
&& !startup_info
->have_repository
)
801 /* die the same way as if we did it at the beginning */
802 setup_git_directory();
805 * skip a -- separator; we know it cannot be
806 * separating revisions from pathnames if
807 * we haven't even had any patterns yet
809 if (argc
> 0 && !opt
.pattern_list
&& !strcmp(argv
[0], "--")) {
814 /* First unrecognized non-option token */
815 if (argc
> 0 && !opt
.pattern_list
) {
816 append_grep_pattern(&opt
, argv
[0], "command line", 0,
822 if (show_in_pager
== default_pager
)
823 show_in_pager
= git_pager(1);
827 opt
.null_following_name
= 1;
828 opt
.output_priv
= &path_list
;
829 opt
.output
= append_path
;
830 string_list_append(&path_list
, show_in_pager
);
833 if ((opt
.binary
& GREP_BINARY_NOMATCH
))
836 if (!opt
.pattern_list
)
837 die(_("no pattern given."));
838 if (!opt
.fixed
&& opt
.ignore_case
)
839 opt
.regflags
|= REG_ICASE
;
841 compile_grep_patterns(&opt
);
843 /* Check revs and then paths */
844 for (i
= 0; i
< argc
; i
++) {
845 const char *arg
= argv
[i
];
846 unsigned char sha1
[20];
847 struct object_context oc
;
849 if (!get_sha1_with_context(arg
, 0, sha1
, &oc
)) {
850 struct object
*object
= parse_object_or_die(sha1
, arg
);
852 verify_non_filename(prefix
, arg
);
853 add_object_array_with_context(object
, arg
, &list
, xmemdupz(&oc
, sizeof(struct object_context
)));
856 if (!strcmp(arg
, "--")) {
864 if (list
.nr
|| cached
|| online_cpus() == 1)
872 if (!(opt
.name_only
|| opt
.unmatch_name_only
|| opt
.count
)
873 && (opt
.pre_context
|| opt
.post_context
||
874 opt
.file_break
|| opt
.funcbody
))
880 /* The rest are paths */
881 if (!seen_dashdash
) {
883 for (j
= i
; j
< argc
; j
++)
884 verify_filename(prefix
, argv
[j
], j
== i
);
887 parse_pathspec(&pathspec
, 0,
888 PATHSPEC_PREFER_CWD
|
889 (opt
.max_depth
!= -1 ? PATHSPEC_MAXDEPTH_VALID
: 0),
891 pathspec
.max_depth
= opt
.max_depth
;
892 pathspec
.recursive
= 1;
894 if (show_in_pager
&& (cached
|| list
.nr
))
895 die(_("--open-files-in-pager only works on the worktree"));
897 if (show_in_pager
&& opt
.pattern_list
&& !opt
.pattern_list
->next
) {
898 const char *pager
= path_list
.items
[0].string
;
899 int len
= strlen(pager
);
901 if (len
> 4 && is_dir_sep(pager
[len
- 5]))
904 if (opt
.ignore_case
&& !strcmp("less", pager
))
905 string_list_append(&path_list
, "-i");
907 if (!strcmp("less", pager
) || !strcmp("vi", pager
)) {
908 struct strbuf buf
= STRBUF_INIT
;
909 strbuf_addf(&buf
, "+/%s%s",
910 strcmp("less", pager
) ? "" : "*",
911 opt
.pattern_list
->pattern
);
912 string_list_append(&path_list
, buf
.buf
);
913 strbuf_detach(&buf
, NULL
);
920 if (!use_index
&& (untracked
|| cached
))
921 die(_("--cached or --untracked cannot be used with --no-index."));
923 if (!use_index
|| untracked
) {
924 int use_exclude
= (opt_exclude
< 0) ? use_index
: !!opt_exclude
;
926 die(_("--no-index or --untracked cannot be used with revs."));
927 hit
= grep_directory(&opt
, &pathspec
, use_exclude
);
928 } else if (0 <= opt_exclude
) {
929 die(_("--[no-]exclude-standard cannot be used for tracked contents."));
930 } else if (!list
.nr
) {
934 hit
= grep_cache(&opt
, &pathspec
, cached
);
937 die(_("both --cached and trees are given."));
938 hit
= grep_objects(&opt
, &pathspec
, &list
);
943 if (hit
&& show_in_pager
)
944 run_pager(&opt
, prefix
);
945 free_grep_patterns(&opt
);