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"
22 static char const * const grep_usage
[] = {
23 N_("git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]"),
27 static int use_threads
= 1;
31 static pthread_t threads
[THREADS
];
33 /* We use one producer thread and THREADS consumer
34 * threads. The producer adds struct work_items to 'todo' and the
35 * consumers pick work items from the same array.
38 struct grep_source source
;
43 /* In the range [todo_done, todo_start) in 'todo' we have work_items
44 * that have been or are processed by a consumer thread. We haven't
45 * written the result for these to stdout yet.
47 * The work_items in [todo_start, todo_end) are waiting to be picked
48 * up by a consumer thread.
50 * The ranges are modulo TODO_SIZE.
53 static struct work_item todo
[TODO_SIZE
];
54 static int todo_start
;
58 /* Has all work items been added? */
59 static int all_work_added
;
61 /* This lock protects all the variables above. */
62 static pthread_mutex_t grep_mutex
;
64 static inline void grep_lock(void)
67 pthread_mutex_lock(&grep_mutex
);
70 static inline void grep_unlock(void)
73 pthread_mutex_unlock(&grep_mutex
);
76 /* Signalled when a new work_item is added to todo. */
77 static pthread_cond_t cond_add
;
79 /* Signalled when the result from one work_item is written to
82 static pthread_cond_t cond_write
;
84 /* Signalled when we are finished with everything. */
85 static pthread_cond_t cond_result
;
87 static int skip_first_line
;
89 static void add_work(struct grep_opt
*opt
, enum grep_source_type type
,
90 const char *name
, const void *id
)
94 while ((todo_end
+1) % ARRAY_SIZE(todo
) == todo_done
) {
95 pthread_cond_wait(&cond_write
, &grep_mutex
);
98 grep_source_init(&todo
[todo_end
].source
, type
, name
, id
);
99 if (opt
->binary
!= GREP_BINARY_TEXT
)
100 grep_source_load_driver(&todo
[todo_end
].source
);
101 todo
[todo_end
].done
= 0;
102 strbuf_reset(&todo
[todo_end
].out
);
103 todo_end
= (todo_end
+ 1) % ARRAY_SIZE(todo
);
105 pthread_cond_signal(&cond_add
);
109 static struct work_item
*get_work(void)
111 struct work_item
*ret
;
114 while (todo_start
== todo_end
&& !all_work_added
) {
115 pthread_cond_wait(&cond_add
, &grep_mutex
);
118 if (todo_start
== todo_end
&& all_work_added
) {
121 ret
= &todo
[todo_start
];
122 todo_start
= (todo_start
+ 1) % ARRAY_SIZE(todo
);
128 static void work_done(struct work_item
*w
)
134 old_done
= todo_done
;
135 for(; todo
[todo_done
].done
&& todo_done
!= todo_start
;
136 todo_done
= (todo_done
+1) % ARRAY_SIZE(todo
)) {
137 w
= &todo
[todo_done
];
139 const char *p
= w
->out
.buf
;
140 size_t len
= w
->out
.len
;
142 /* Skip the leading hunk mark of the first file. */
143 if (skip_first_line
) {
152 write_or_die(1, p
, len
);
154 grep_source_clear(&w
->source
);
157 if (old_done
!= todo_done
)
158 pthread_cond_signal(&cond_write
);
160 if (all_work_added
&& todo_done
== todo_end
)
161 pthread_cond_signal(&cond_result
);
166 static int skip_binary(struct grep_opt
*opt
, const char *filename
)
168 if ((opt
->binary
& GREP_BINARY_NOMATCH
)) {
169 static struct git_attr
*attr_text
;
170 struct git_attr_check check
;
173 attr_text
= git_attr("text");
174 memset(&check
, 0, sizeof(check
));
175 check
.attr
= attr_text
;
176 return !git_check_attr(filename
, 1, &check
) &&
177 ATTR_FALSE(check
.value
);
182 static void *run(void *arg
)
185 struct grep_opt
*opt
= arg
;
188 struct work_item
*w
= get_work();
192 if (skip_binary(opt
, (const char *)w
->source
.identifier
))
195 opt
->output_priv
= w
;
196 hit
|= grep_source(opt
, &w
->source
);
197 grep_source_clear_data(&w
->source
);
200 free_grep_patterns(arg
);
203 return (void*) (intptr_t) hit
;
206 static void strbuf_out(struct grep_opt
*opt
, const void *buf
, size_t size
)
208 struct work_item
*w
= opt
->output_priv
;
209 strbuf_add(&w
->out
, buf
, size
);
212 static void start_threads(struct grep_opt
*opt
)
216 pthread_mutex_init(&grep_mutex
, NULL
);
217 pthread_mutex_init(&grep_read_mutex
, NULL
);
218 pthread_mutex_init(&grep_attr_mutex
, NULL
);
219 pthread_cond_init(&cond_add
, NULL
);
220 pthread_cond_init(&cond_write
, NULL
);
221 pthread_cond_init(&cond_result
, NULL
);
224 for (i
= 0; i
< ARRAY_SIZE(todo
); i
++) {
225 strbuf_init(&todo
[i
].out
, 0);
228 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
230 struct grep_opt
*o
= grep_opt_dup(opt
);
231 o
->output
= strbuf_out
;
233 compile_grep_patterns(o
);
234 err
= pthread_create(&threads
[i
], NULL
, run
, o
);
237 die(_("grep: failed to create thread: %s"),
242 static int wait_all(void)
250 /* Wait until all work is done. */
251 while (todo_done
!= todo_end
)
252 pthread_cond_wait(&cond_result
, &grep_mutex
);
254 /* Wake up all the consumer threads so they can see that there
255 * is no more work to do.
257 pthread_cond_broadcast(&cond_add
);
260 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
262 pthread_join(threads
[i
], &h
);
263 hit
|= (int) (intptr_t) h
;
266 pthread_mutex_destroy(&grep_mutex
);
267 pthread_mutex_destroy(&grep_read_mutex
);
268 pthread_mutex_destroy(&grep_attr_mutex
);
269 pthread_cond_destroy(&cond_add
);
270 pthread_cond_destroy(&cond_write
);
271 pthread_cond_destroy(&cond_result
);
276 #else /* !NO_PTHREADS */
278 static int wait_all(void)
284 static int parse_pattern_type_arg(const char *opt
, const char *arg
)
286 if (!strcmp(arg
, "default"))
287 return GREP_PATTERN_TYPE_UNSPECIFIED
;
288 else if (!strcmp(arg
, "basic"))
289 return GREP_PATTERN_TYPE_BRE
;
290 else if (!strcmp(arg
, "extended"))
291 return GREP_PATTERN_TYPE_ERE
;
292 else if (!strcmp(arg
, "fixed"))
293 return GREP_PATTERN_TYPE_FIXED
;
294 else if (!strcmp(arg
, "perl"))
295 return GREP_PATTERN_TYPE_PCRE
;
296 die("bad %s argument: %s", opt
, arg
);
299 static void grep_pattern_type_options(const int pattern_type
, struct grep_opt
*opt
)
301 switch (pattern_type
) {
302 case GREP_PATTERN_TYPE_UNSPECIFIED
:
305 case GREP_PATTERN_TYPE_BRE
:
308 opt
->regflags
&= ~REG_EXTENDED
;
311 case GREP_PATTERN_TYPE_ERE
:
314 opt
->regflags
|= REG_EXTENDED
;
317 case GREP_PATTERN_TYPE_FIXED
:
320 opt
->regflags
&= ~REG_EXTENDED
;
323 case GREP_PATTERN_TYPE_PCRE
:
326 opt
->regflags
&= ~REG_EXTENDED
;
331 static int grep_config(const char *var
, const char *value
, void *cb
)
333 struct grep_opt
*opt
= cb
;
336 if (userdiff_config(var
, value
) < 0)
339 if (!strcmp(var
, "grep.extendedregexp")) {
340 if (git_config_bool(var
, value
))
341 opt
->extended_regexp_option
= 1;
343 opt
->extended_regexp_option
= 0;
347 if (!strcmp(var
, "grep.patterntype")) {
348 opt
->pattern_type_option
= parse_pattern_type_arg(var
, value
);
352 if (!strcmp(var
, "grep.linenumber")) {
353 opt
->linenum
= git_config_bool(var
, value
);
357 if (!strcmp(var
, "color.grep"))
358 opt
->color
= git_config_colorbool(var
, value
);
359 else if (!strcmp(var
, "color.grep.context"))
360 color
= opt
->color_context
;
361 else if (!strcmp(var
, "color.grep.filename"))
362 color
= opt
->color_filename
;
363 else if (!strcmp(var
, "color.grep.function"))
364 color
= opt
->color_function
;
365 else if (!strcmp(var
, "color.grep.linenumber"))
366 color
= opt
->color_lineno
;
367 else if (!strcmp(var
, "color.grep.match"))
368 color
= opt
->color_match
;
369 else if (!strcmp(var
, "color.grep.selected"))
370 color
= opt
->color_selected
;
371 else if (!strcmp(var
, "color.grep.separator"))
372 color
= opt
->color_sep
;
374 return git_color_default_config(var
, value
, cb
);
377 return config_error_nonbool(var
);
378 color_parse(value
, var
, color
);
383 static void *lock_and_read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
388 data
= read_sha1_file(sha1
, type
, size
);
393 static int grep_sha1(struct grep_opt
*opt
, const unsigned char *sha1
,
394 const char *filename
, int tree_name_len
)
396 struct strbuf pathbuf
= STRBUF_INIT
;
398 if (opt
->relative
&& opt
->prefix_length
) {
399 quote_path_relative(filename
+ tree_name_len
, -1, &pathbuf
,
401 strbuf_insert(&pathbuf
, 0, filename
, tree_name_len
);
403 strbuf_addstr(&pathbuf
, filename
);
408 add_work(opt
, GREP_SOURCE_SHA1
, pathbuf
.buf
, sha1
);
409 strbuf_release(&pathbuf
);
414 struct grep_source gs
;
417 grep_source_init(&gs
, GREP_SOURCE_SHA1
, pathbuf
.buf
, sha1
);
418 strbuf_release(&pathbuf
);
419 hit
= grep_source(opt
, &gs
);
421 grep_source_clear(&gs
);
426 static int grep_file(struct grep_opt
*opt
, const char *filename
)
428 struct strbuf buf
= STRBUF_INIT
;
430 if (opt
->relative
&& opt
->prefix_length
)
431 quote_path_relative(filename
, -1, &buf
, opt
->prefix
);
433 strbuf_addstr(&buf
, filename
);
437 add_work(opt
, GREP_SOURCE_FILE
, buf
.buf
, filename
);
438 strbuf_release(&buf
);
443 struct grep_source gs
;
446 grep_source_init(&gs
, GREP_SOURCE_FILE
, buf
.buf
, filename
);
447 strbuf_release(&buf
);
448 hit
= grep_source(opt
, &gs
);
450 grep_source_clear(&gs
);
455 static void append_path(struct grep_opt
*opt
, const void *data
, size_t len
)
457 struct string_list
*path_list
= opt
->output_priv
;
459 if (len
== 1 && *(const char *)data
== '\0')
461 string_list_append(path_list
, xstrndup(data
, len
));
464 static void run_pager(struct grep_opt
*opt
, const char *prefix
)
466 struct string_list
*path_list
= opt
->output_priv
;
467 const char **argv
= xmalloc(sizeof(const char *) * (path_list
->nr
+ 1));
470 for (i
= 0; i
< path_list
->nr
; i
++)
471 argv
[i
] = path_list
->items
[i
].string
;
472 argv
[path_list
->nr
] = NULL
;
474 if (prefix
&& chdir(prefix
))
475 die(_("Failed to chdir: %s"), prefix
);
476 status
= run_command_v_opt(argv
, RUN_USING_SHELL
);
482 static int grep_cache(struct grep_opt
*opt
, const struct pathspec
*pathspec
, int cached
)
488 for (nr
= 0; nr
< active_nr
; nr
++) {
489 struct cache_entry
*ce
= active_cache
[nr
];
490 if (!S_ISREG(ce
->ce_mode
))
492 if (!match_pathspec_depth(pathspec
, ce
->name
, ce_namelen(ce
), 0, NULL
))
494 if (skip_binary(opt
, ce
->name
))
498 * If CE_VALID is on, we assume worktree file and its cache entry
499 * are identical, even if worktree file has been modified, so use
500 * cache version instead
502 if (cached
|| (ce
->ce_flags
& CE_VALID
) || ce_skip_worktree(ce
)) {
505 hit
|= grep_sha1(opt
, ce
->sha1
, ce
->name
, 0);
508 hit
|= grep_file(opt
, ce
->name
);
512 } while (nr
< active_nr
&&
513 !strcmp(ce
->name
, active_cache
[nr
]->name
));
514 nr
--; /* compensate for loop control */
516 if (hit
&& opt
->status_only
)
522 static int grep_tree(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
523 struct tree_desc
*tree
, struct strbuf
*base
, int tn_len
)
526 enum interesting match
= entry_not_interesting
;
527 struct name_entry entry
;
528 int old_baselen
= base
->len
;
530 while (tree_entry(tree
, &entry
)) {
531 int te_len
= tree_entry_len(&entry
);
533 if (match
!= all_entries_interesting
) {
534 match
= tree_entry_interesting(&entry
, base
, tn_len
, pathspec
);
535 if (match
== all_entries_not_interesting
)
537 if (match
== entry_not_interesting
)
541 strbuf_add(base
, entry
.path
, te_len
);
543 if (S_ISREG(entry
.mode
)) {
544 hit
|= grep_sha1(opt
, entry
.sha1
, base
->buf
, tn_len
);
546 else if (S_ISDIR(entry
.mode
)) {
547 enum object_type type
;
548 struct tree_desc sub
;
552 data
= lock_and_read_sha1_file(entry
.sha1
, &type
, &size
);
554 die(_("unable to read tree (%s)"),
555 sha1_to_hex(entry
.sha1
));
557 strbuf_addch(base
, '/');
558 init_tree_desc(&sub
, data
, size
);
559 hit
|= grep_tree(opt
, pathspec
, &sub
, base
, tn_len
);
562 strbuf_setlen(base
, old_baselen
);
564 if (hit
&& opt
->status_only
)
570 static int grep_object(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
571 struct object
*obj
, const char *name
)
573 if (obj
->type
== OBJ_BLOB
)
574 return grep_sha1(opt
, obj
->sha1
, name
, 0);
575 if (obj
->type
== OBJ_COMMIT
|| obj
->type
== OBJ_TREE
) {
576 struct tree_desc tree
;
583 data
= read_object_with_reference(obj
->sha1
, tree_type
,
588 die(_("unable to read tree (%s)"), sha1_to_hex(obj
->sha1
));
590 len
= name
? strlen(name
) : 0;
591 strbuf_init(&base
, PATH_MAX
+ len
+ 1);
593 strbuf_add(&base
, name
, len
);
594 strbuf_addch(&base
, ':');
596 init_tree_desc(&tree
, data
, size
);
597 hit
= grep_tree(opt
, pathspec
, &tree
, &base
, base
.len
);
598 strbuf_release(&base
);
602 die(_("unable to grep from object of type %s"), typename(obj
->type
));
605 static int grep_objects(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
606 const struct object_array
*list
)
610 const unsigned int nr
= list
->nr
;
612 for (i
= 0; i
< nr
; i
++) {
613 struct object
*real_obj
;
614 real_obj
= deref_tag(list
->objects
[i
].item
, NULL
, 0);
615 if (grep_object(opt
, pathspec
, real_obj
, list
->objects
[i
].name
)) {
617 if (opt
->status_only
)
624 static int grep_directory(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
627 struct dir_struct dir
;
630 memset(&dir
, 0, sizeof(dir
));
632 setup_standard_excludes(&dir
);
634 fill_directory(&dir
, pathspec
->raw
);
635 for (i
= 0; i
< dir
.nr
; i
++) {
636 const char *name
= dir
.entries
[i
]->name
;
637 int namelen
= strlen(name
);
638 if (!match_pathspec_depth(pathspec
, name
, namelen
, 0, NULL
))
640 hit
|= grep_file(opt
, dir
.entries
[i
]->name
);
641 if (hit
&& opt
->status_only
)
647 static int context_callback(const struct option
*opt
, const char *arg
,
650 struct grep_opt
*grep_opt
= opt
->value
;
655 grep_opt
->pre_context
= grep_opt
->post_context
= 0;
658 value
= strtol(arg
, (char **)&endp
, 10);
660 return error(_("switch `%c' expects a numerical value"),
663 grep_opt
->pre_context
= grep_opt
->post_context
= value
;
667 static int file_callback(const struct option
*opt
, const char *arg
, int unset
)
669 struct grep_opt
*grep_opt
= opt
->value
;
670 int from_stdin
= !strcmp(arg
, "-");
673 struct strbuf sb
= STRBUF_INIT
;
675 patterns
= from_stdin
? stdin
: fopen(arg
, "r");
677 die_errno(_("cannot open '%s'"), arg
);
678 while (strbuf_getline(&sb
, patterns
, '\n') == 0) {
679 /* ignore empty line like grep does */
683 append_grep_pat(grep_opt
, sb
.buf
, sb
.len
, arg
, ++lno
,
692 static int not_callback(const struct option
*opt
, const char *arg
, int unset
)
694 struct grep_opt
*grep_opt
= opt
->value
;
695 append_grep_pattern(grep_opt
, "--not", "command line", 0, GREP_NOT
);
699 static int and_callback(const struct option
*opt
, const char *arg
, int unset
)
701 struct grep_opt
*grep_opt
= opt
->value
;
702 append_grep_pattern(grep_opt
, "--and", "command line", 0, GREP_AND
);
706 static int open_callback(const struct option
*opt
, const char *arg
, int unset
)
708 struct grep_opt
*grep_opt
= opt
->value
;
709 append_grep_pattern(grep_opt
, "(", "command line", 0, GREP_OPEN_PAREN
);
713 static int close_callback(const struct option
*opt
, const char *arg
, int unset
)
715 struct grep_opt
*grep_opt
= opt
->value
;
716 append_grep_pattern(grep_opt
, ")", "command line", 0, GREP_CLOSE_PAREN
);
720 static int pattern_callback(const struct option
*opt
, const char *arg
,
723 struct grep_opt
*grep_opt
= opt
->value
;
724 append_grep_pattern(grep_opt
, arg
, "-e option", 0, GREP_PATTERN
);
728 static int help_callback(const struct option
*opt
, const char *arg
, int unset
)
733 int cmd_grep(int argc
, const char **argv
, const char *prefix
)
736 int cached
= 0, untracked
= 0, opt_exclude
= -1;
737 int seen_dashdash
= 0;
738 int external_grep_allowed__ignored
;
739 const char *show_in_pager
= NULL
, *default_pager
= "dummy";
741 struct object_array list
= OBJECT_ARRAY_INIT
;
742 const char **paths
= NULL
;
743 struct pathspec pathspec
;
744 struct string_list path_list
= STRING_LIST_INIT_NODUP
;
748 int pattern_type_arg
= GREP_PATTERN_TYPE_UNSPECIFIED
;
750 struct option options
[] = {
751 OPT_BOOLEAN(0, "cached", &cached
,
752 N_("search in index instead of in the work tree")),
753 OPT_NEGBIT(0, "no-index", &use_index
,
754 N_("find in contents not managed by git"), 1),
755 OPT_BOOLEAN(0, "untracked", &untracked
,
756 N_("search in both tracked and untracked files")),
757 OPT_SET_INT(0, "exclude-standard", &opt_exclude
,
758 N_("search also in ignored files"), 1),
760 OPT_BOOLEAN('v', "invert-match", &opt
.invert
,
761 N_("show non-matching lines")),
762 OPT_BOOLEAN('i', "ignore-case", &opt
.ignore_case
,
763 N_("case insensitive matching")),
764 OPT_BOOLEAN('w', "word-regexp", &opt
.word_regexp
,
765 N_("match patterns only at word boundaries")),
766 OPT_SET_INT('a', "text", &opt
.binary
,
767 N_("process binary files as text"), GREP_BINARY_TEXT
),
768 OPT_SET_INT('I', NULL
, &opt
.binary
,
769 N_("don't match patterns in binary files"),
770 GREP_BINARY_NOMATCH
),
771 { OPTION_INTEGER
, 0, "max-depth", &opt
.max_depth
, N_("depth"),
772 N_("descend at most <depth> levels"), PARSE_OPT_NONEG
,
775 OPT_SET_INT('E', "extended-regexp", &pattern_type_arg
,
776 N_("use extended POSIX regular expressions"),
777 GREP_PATTERN_TYPE_ERE
),
778 OPT_SET_INT('G', "basic-regexp", &pattern_type_arg
,
779 N_("use basic POSIX regular expressions (default)"),
780 GREP_PATTERN_TYPE_BRE
),
781 OPT_SET_INT('F', "fixed-strings", &pattern_type_arg
,
782 N_("interpret patterns as fixed strings"),
783 GREP_PATTERN_TYPE_FIXED
),
784 OPT_SET_INT('P', "perl-regexp", &pattern_type_arg
,
785 N_("use Perl-compatible regular expressions"),
786 GREP_PATTERN_TYPE_PCRE
),
788 OPT_BOOLEAN('n', "line-number", &opt
.linenum
, N_("show line numbers")),
789 OPT_NEGBIT('h', NULL
, &opt
.pathname
, N_("don't show filenames"), 1),
790 OPT_BIT('H', NULL
, &opt
.pathname
, N_("show filenames"), 1),
791 OPT_NEGBIT(0, "full-name", &opt
.relative
,
792 N_("show filenames relative to top directory"), 1),
793 OPT_BOOLEAN('l', "files-with-matches", &opt
.name_only
,
794 N_("show only filenames instead of matching lines")),
795 OPT_BOOLEAN(0, "name-only", &opt
.name_only
,
796 N_("synonym for --files-with-matches")),
797 OPT_BOOLEAN('L', "files-without-match",
798 &opt
.unmatch_name_only
,
799 N_("show only the names of files without match")),
800 OPT_BOOLEAN('z', "null", &opt
.null_following_name
,
801 N_("print NUL after filenames")),
802 OPT_BOOLEAN('c', "count", &opt
.count
,
803 N_("show the number of matches instead of matching lines")),
804 OPT__COLOR(&opt
.color
, N_("highlight matches")),
805 OPT_BOOLEAN(0, "break", &opt
.file_break
,
806 N_("print empty line between matches from different files")),
807 OPT_BOOLEAN(0, "heading", &opt
.heading
,
808 N_("show filename only once above matches from same file")),
810 OPT_CALLBACK('C', "context", &opt
, N_("n"),
811 N_("show <n> context lines before and after matches"),
813 OPT_INTEGER('B', "before-context", &opt
.pre_context
,
814 N_("show <n> context lines before matches")),
815 OPT_INTEGER('A', "after-context", &opt
.post_context
,
816 N_("show <n> context lines after matches")),
817 OPT_NUMBER_CALLBACK(&opt
, N_("shortcut for -C NUM"),
819 OPT_BOOLEAN('p', "show-function", &opt
.funcname
,
820 N_("show a line with the function name before matches")),
821 OPT_BOOLEAN('W', "function-context", &opt
.funcbody
,
822 N_("show the surrounding function")),
824 OPT_CALLBACK('f', NULL
, &opt
, N_("file"),
825 N_("read patterns from file"), file_callback
),
826 { OPTION_CALLBACK
, 'e', NULL
, &opt
, N_("pattern"),
827 N_("match <pattern>"), PARSE_OPT_NONEG
, pattern_callback
},
828 { OPTION_CALLBACK
, 0, "and", &opt
, NULL
,
829 N_("combine patterns specified with -e"),
830 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, and_callback
},
831 OPT_BOOLEAN(0, "or", &dummy
, ""),
832 { OPTION_CALLBACK
, 0, "not", &opt
, NULL
, "",
833 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, not_callback
},
834 { OPTION_CALLBACK
, '(', NULL
, &opt
, NULL
, "",
835 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
837 { OPTION_CALLBACK
, ')', NULL
, &opt
, NULL
, "",
838 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
840 OPT__QUIET(&opt
.status_only
,
841 N_("indicate hit with exit status without output")),
842 OPT_BOOLEAN(0, "all-match", &opt
.all_match
,
843 N_("show only matches from files that match all patterns")),
844 { OPTION_SET_INT
, 0, "debug", &opt
.debug
, NULL
,
845 N_("show parse tree for grep expression"),
846 PARSE_OPT_NOARG
| PARSE_OPT_HIDDEN
, NULL
, 1 },
848 { OPTION_STRING
, 'O', "open-files-in-pager", &show_in_pager
,
849 N_("pager"), N_("show matching files in the pager"),
850 PARSE_OPT_OPTARG
, NULL
, (intptr_t)default_pager
},
851 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored
,
852 N_("allow calling of grep(1) (ignored by this build)")),
853 { OPTION_CALLBACK
, 0, "help-all", &options
, NULL
, N_("show usage"),
854 PARSE_OPT_HIDDEN
| PARSE_OPT_NOARG
, help_callback
},
859 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
860 * to show usage information and exit.
862 if (argc
== 2 && !strcmp(argv
[1], "-h"))
863 usage_with_options(grep_usage
, options
);
865 memset(&opt
, 0, sizeof(opt
));
867 opt
.prefix_length
= (prefix
&& *prefix
) ? strlen(prefix
) : 0;
870 opt
.pattern_tail
= &opt
.pattern_list
;
871 opt
.header_tail
= &opt
.header_list
;
872 opt
.regflags
= REG_NEWLINE
;
874 opt
.pattern_type_option
= GREP_PATTERN_TYPE_UNSPECIFIED
;
875 opt
.extended_regexp_option
= 0;
877 strcpy(opt
.color_context
, "");
878 strcpy(opt
.color_filename
, "");
879 strcpy(opt
.color_function
, "");
880 strcpy(opt
.color_lineno
, "");
881 strcpy(opt
.color_match
, GIT_COLOR_BOLD_RED
);
882 strcpy(opt
.color_selected
, "");
883 strcpy(opt
.color_sep
, GIT_COLOR_CYAN
);
885 git_config(grep_config
, &opt
);
888 * If there is no -- then the paths must exist in the working
889 * tree. If there is no explicit pattern specified with -e or
890 * -f, we take the first unrecognized non option to be the
891 * pattern, but then what follows it must be zero or more
892 * valid refs up to the -- (if exists), and then existing
893 * paths. If there is an explicit pattern, then the first
894 * unrecognized non option is the beginning of the refs list
895 * that continues up to the -- (if exists), and then paths.
897 argc
= parse_options(argc
, argv
, prefix
, options
, grep_usage
,
898 PARSE_OPT_KEEP_DASHDASH
|
899 PARSE_OPT_STOP_AT_NON_OPTION
|
900 PARSE_OPT_NO_INTERNAL_HELP
);
902 if (pattern_type_arg
!= GREP_PATTERN_TYPE_UNSPECIFIED
)
903 grep_pattern_type_options(pattern_type_arg
, &opt
);
904 else if (opt
.pattern_type_option
!= GREP_PATTERN_TYPE_UNSPECIFIED
)
905 grep_pattern_type_options(opt
.pattern_type_option
, &opt
);
906 else if (opt
.extended_regexp_option
)
907 grep_pattern_type_options(GREP_PATTERN_TYPE_ERE
, &opt
);
909 if (use_index
&& !startup_info
->have_repository
)
910 /* die the same way as if we did it at the beginning */
911 setup_git_directory();
914 * skip a -- separator; we know it cannot be
915 * separating revisions from pathnames if
916 * we haven't even had any patterns yet
918 if (argc
> 0 && !opt
.pattern_list
&& !strcmp(argv
[0], "--")) {
923 /* First unrecognized non-option token */
924 if (argc
> 0 && !opt
.pattern_list
) {
925 append_grep_pattern(&opt
, argv
[0], "command line", 0,
931 if (show_in_pager
== default_pager
)
932 show_in_pager
= git_pager(1);
936 opt
.null_following_name
= 1;
937 opt
.output_priv
= &path_list
;
938 opt
.output
= append_path
;
939 string_list_append(&path_list
, show_in_pager
);
942 if ((opt
.binary
& GREP_BINARY_NOMATCH
))
945 if (!opt
.pattern_list
)
946 die(_("no pattern given."));
947 if (!opt
.fixed
&& opt
.ignore_case
)
948 opt
.regflags
|= REG_ICASE
;
950 compile_grep_patterns(&opt
);
952 /* Check revs and then paths */
953 for (i
= 0; i
< argc
; i
++) {
954 const char *arg
= argv
[i
];
955 unsigned char sha1
[20];
957 if (!get_sha1(arg
, sha1
)) {
958 struct object
*object
= parse_object(sha1
);
960 die(_("bad object %s"), arg
);
961 add_object_array(object
, arg
, &list
);
964 if (!strcmp(arg
, "--")) {
972 if (list
.nr
|| cached
|| online_cpus() == 1)
980 if (!(opt
.name_only
|| opt
.unmatch_name_only
|| opt
.count
)
981 && (opt
.pre_context
|| opt
.post_context
||
982 opt
.file_break
|| opt
.funcbody
))
988 /* The rest are paths */
989 if (!seen_dashdash
) {
991 for (j
= i
; j
< argc
; j
++)
992 verify_filename(prefix
, argv
[j
], j
== i
);
995 paths
= get_pathspec(prefix
, argv
+ i
);
996 init_pathspec(&pathspec
, paths
);
997 pathspec
.max_depth
= opt
.max_depth
;
998 pathspec
.recursive
= 1;
1000 if (show_in_pager
&& (cached
|| list
.nr
))
1001 die(_("--open-files-in-pager only works on the worktree"));
1003 if (show_in_pager
&& opt
.pattern_list
&& !opt
.pattern_list
->next
) {
1004 const char *pager
= path_list
.items
[0].string
;
1005 int len
= strlen(pager
);
1007 if (len
> 4 && is_dir_sep(pager
[len
- 5]))
1010 if (opt
.ignore_case
&& !strcmp("less", pager
))
1011 string_list_append(&path_list
, "-i");
1013 if (!strcmp("less", pager
) || !strcmp("vi", pager
)) {
1014 struct strbuf buf
= STRBUF_INIT
;
1015 strbuf_addf(&buf
, "+/%s%s",
1016 strcmp("less", pager
) ? "" : "*",
1017 opt
.pattern_list
->pattern
);
1018 string_list_append(&path_list
, buf
.buf
);
1019 strbuf_detach(&buf
, NULL
);
1026 if (!use_index
&& (untracked
|| cached
))
1027 die(_("--cached or --untracked cannot be used with --no-index."));
1029 if (!use_index
|| untracked
) {
1030 int use_exclude
= (opt_exclude
< 0) ? use_index
: !!opt_exclude
;
1032 die(_("--no-index or --untracked cannot be used with revs."));
1033 hit
= grep_directory(&opt
, &pathspec
, use_exclude
);
1034 } else if (0 <= opt_exclude
) {
1035 die(_("--[no-]exclude-standard cannot be used for tracked contents."));
1036 } else if (!list
.nr
) {
1040 hit
= grep_cache(&opt
, &pathspec
, cached
);
1043 die(_("both --cached and trees are given."));
1044 hit
= grep_objects(&opt
, &pathspec
, &list
);
1049 if (hit
&& show_in_pager
)
1050 run_pager(&opt
, prefix
);
1051 free_grep_patterns(&opt
);