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"
23 static char const * const grep_usage
[] = {
24 "git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]",
28 static int use_threads
= 1;
32 static pthread_t threads
[THREADS
];
34 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
36 static void *load_file(const char *filename
, size_t *sz
);
38 enum work_type
{WORK_SHA1
, WORK_FILE
};
40 /* We use one producer thread and THREADS consumer
41 * threads. The producer adds struct work_items to 'todo' and the
42 * consumers pick work items from the same array.
48 /* if type == WORK_SHA1, then 'identifier' is a SHA1,
49 * otherwise type == WORK_FILE, and 'identifier' is a NUL
50 * terminated filename.
57 /* In the range [todo_done, todo_start) in 'todo' we have work_items
58 * that have been or are processed by a consumer thread. We haven't
59 * written the result for these to stdout yet.
61 * The work_items in [todo_start, todo_end) are waiting to be picked
62 * up by a consumer thread.
64 * The ranges are modulo TODO_SIZE.
67 static struct work_item todo
[TODO_SIZE
];
68 static int todo_start
;
72 /* Has all work items been added? */
73 static int all_work_added
;
75 /* This lock protects all the variables above. */
76 static pthread_mutex_t grep_mutex
;
78 static inline void grep_lock(void)
81 pthread_mutex_lock(&grep_mutex
);
84 static inline void grep_unlock(void)
87 pthread_mutex_unlock(&grep_mutex
);
90 /* Used to serialize calls to read_sha1_file. */
91 static pthread_mutex_t read_sha1_mutex
;
93 static inline void read_sha1_lock(void)
96 pthread_mutex_lock(&read_sha1_mutex
);
99 static inline void read_sha1_unlock(void)
102 pthread_mutex_unlock(&read_sha1_mutex
);
105 /* Signalled when a new work_item is added to todo. */
106 static pthread_cond_t cond_add
;
108 /* Signalled when the result from one work_item is written to
111 static pthread_cond_t cond_write
;
113 /* Signalled when we are finished with everything. */
114 static pthread_cond_t cond_result
;
116 static int skip_first_line
;
118 static void add_work(enum work_type type
, char *name
, void *id
)
122 while ((todo_end
+1) % ARRAY_SIZE(todo
) == todo_done
) {
123 pthread_cond_wait(&cond_write
, &grep_mutex
);
126 todo
[todo_end
].type
= type
;
127 todo
[todo_end
].name
= name
;
128 todo
[todo_end
].identifier
= id
;
129 todo
[todo_end
].done
= 0;
130 strbuf_reset(&todo
[todo_end
].out
);
131 todo_end
= (todo_end
+ 1) % ARRAY_SIZE(todo
);
133 pthread_cond_signal(&cond_add
);
137 static struct work_item
*get_work(void)
139 struct work_item
*ret
;
142 while (todo_start
== todo_end
&& !all_work_added
) {
143 pthread_cond_wait(&cond_add
, &grep_mutex
);
146 if (todo_start
== todo_end
&& all_work_added
) {
149 ret
= &todo
[todo_start
];
150 todo_start
= (todo_start
+ 1) % ARRAY_SIZE(todo
);
156 static void grep_sha1_async(struct grep_opt
*opt
, char *name
,
157 const unsigned char *sha1
)
162 add_work(WORK_SHA1
, name
, s
);
165 static void grep_file_async(struct grep_opt
*opt
, char *name
,
166 const char *filename
)
168 add_work(WORK_FILE
, name
, xstrdup(filename
));
171 static void work_done(struct work_item
*w
)
177 old_done
= todo_done
;
178 for(; todo
[todo_done
].done
&& todo_done
!= todo_start
;
179 todo_done
= (todo_done
+1) % ARRAY_SIZE(todo
)) {
180 w
= &todo
[todo_done
];
182 const char *p
= w
->out
.buf
;
183 size_t len
= w
->out
.len
;
185 /* Skip the leading hunk mark of the first file. */
186 if (skip_first_line
) {
195 write_or_die(1, p
, len
);
201 if (old_done
!= todo_done
)
202 pthread_cond_signal(&cond_write
);
204 if (all_work_added
&& todo_done
== todo_end
)
205 pthread_cond_signal(&cond_result
);
210 static int skip_binary(struct grep_opt
*opt
, const char *filename
)
212 if ((opt
->binary
& GREP_BINARY_NOMATCH
)) {
213 static struct git_attr
*attr_text
;
214 struct git_attr_check check
;
217 attr_text
= git_attr("text");
218 memset(&check
, 0, sizeof(check
));
219 check
.attr
= attr_text
;
220 return !git_check_attr(filename
, 1, &check
) &&
221 ATTR_FALSE(check
.value
);
226 static void *run(void *arg
)
229 struct grep_opt
*opt
= arg
;
232 struct work_item
*w
= get_work();
236 if (skip_binary(opt
, (const char *)w
->identifier
))
239 opt
->output_priv
= w
;
240 if (w
->type
== WORK_SHA1
) {
242 void* data
= load_sha1(w
->identifier
, &sz
, w
->name
);
245 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
248 } else if (w
->type
== WORK_FILE
) {
250 void* data
= load_file(w
->identifier
, &sz
);
252 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
261 free_grep_patterns(arg
);
264 return (void*) (intptr_t) hit
;
267 static void strbuf_out(struct grep_opt
*opt
, const void *buf
, size_t size
)
269 struct work_item
*w
= opt
->output_priv
;
270 strbuf_add(&w
->out
, buf
, size
);
273 static void start_threads(struct grep_opt
*opt
)
277 pthread_mutex_init(&grep_mutex
, NULL
);
278 pthread_mutex_init(&read_sha1_mutex
, NULL
);
279 pthread_cond_init(&cond_add
, NULL
);
280 pthread_cond_init(&cond_write
, NULL
);
281 pthread_cond_init(&cond_result
, NULL
);
283 for (i
= 0; i
< ARRAY_SIZE(todo
); i
++) {
284 strbuf_init(&todo
[i
].out
, 0);
287 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
289 struct grep_opt
*o
= grep_opt_dup(opt
);
290 o
->output
= strbuf_out
;
291 compile_grep_patterns(o
);
292 err
= pthread_create(&threads
[i
], NULL
, run
, o
);
295 die(_("grep: failed to create thread: %s"),
300 static int wait_all(void)
308 /* Wait until all work is done. */
309 while (todo_done
!= todo_end
)
310 pthread_cond_wait(&cond_result
, &grep_mutex
);
312 /* Wake up all the consumer threads so they can see that there
313 * is no more work to do.
315 pthread_cond_broadcast(&cond_add
);
318 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
320 pthread_join(threads
[i
], &h
);
321 hit
|= (int) (intptr_t) h
;
324 pthread_mutex_destroy(&grep_mutex
);
325 pthread_mutex_destroy(&read_sha1_mutex
);
326 pthread_cond_destroy(&cond_add
);
327 pthread_cond_destroy(&cond_write
);
328 pthread_cond_destroy(&cond_result
);
332 #else /* !NO_PTHREADS */
333 #define read_sha1_lock()
334 #define read_sha1_unlock()
336 static int wait_all(void)
342 static int grep_config(const char *var
, const char *value
, void *cb
)
344 struct grep_opt
*opt
= cb
;
347 switch (userdiff_config(var
, value
)) {
353 if (!strcmp(var
, "grep.extendedregexp")) {
354 if (git_config_bool(var
, value
))
355 opt
->regflags
|= REG_EXTENDED
;
357 opt
->regflags
&= ~REG_EXTENDED
;
361 if (!strcmp(var
, "grep.linenumber")) {
362 opt
->linenum
= git_config_bool(var
, value
);
366 if (!strcmp(var
, "color.grep"))
367 opt
->color
= git_config_colorbool(var
, value
);
368 else if (!strcmp(var
, "color.grep.context"))
369 color
= opt
->color_context
;
370 else if (!strcmp(var
, "color.grep.filename"))
371 color
= opt
->color_filename
;
372 else if (!strcmp(var
, "color.grep.function"))
373 color
= opt
->color_function
;
374 else if (!strcmp(var
, "color.grep.linenumber"))
375 color
= opt
->color_lineno
;
376 else if (!strcmp(var
, "color.grep.match"))
377 color
= opt
->color_match
;
378 else if (!strcmp(var
, "color.grep.selected"))
379 color
= opt
->color_selected
;
380 else if (!strcmp(var
, "color.grep.separator"))
381 color
= opt
->color_sep
;
383 return git_color_default_config(var
, value
, cb
);
386 return config_error_nonbool(var
);
387 color_parse(value
, var
, color
);
392 static void *lock_and_read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
397 data
= read_sha1_file(sha1
, type
, size
);
402 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
405 enum object_type type
;
406 void *data
= lock_and_read_sha1_file(sha1
, &type
, size
);
409 error(_("'%s': unable to read %s"), name
, sha1_to_hex(sha1
));
414 static int grep_sha1(struct grep_opt
*opt
, const unsigned char *sha1
,
415 const char *filename
, int tree_name_len
)
417 struct strbuf pathbuf
= STRBUF_INIT
;
420 if (opt
->relative
&& opt
->prefix_length
) {
421 quote_path_relative(filename
+ tree_name_len
, -1, &pathbuf
,
423 strbuf_insert(&pathbuf
, 0, filename
, tree_name_len
);
425 strbuf_addstr(&pathbuf
, filename
);
428 name
= strbuf_detach(&pathbuf
, NULL
);
432 grep_sha1_async(opt
, name
, sha1
);
439 void *data
= load_sha1(sha1
, &sz
, name
);
443 hit
= grep_buffer(opt
, name
, data
, sz
);
451 static void *load_file(const char *filename
, size_t *sz
)
457 if (lstat(filename
, &st
) < 0) {
460 error(_("'%s': %s"), filename
, strerror(errno
));
463 if (!S_ISREG(st
.st_mode
))
465 *sz
= xsize_t(st
.st_size
);
466 i
= open(filename
, O_RDONLY
);
469 data
= xmalloc(*sz
+ 1);
470 if (st
.st_size
!= read_in_full(i
, data
, *sz
)) {
471 error(_("'%s': short read %s"), filename
, strerror(errno
));
481 static int grep_file(struct grep_opt
*opt
, const char *filename
)
483 struct strbuf buf
= STRBUF_INIT
;
486 if (opt
->relative
&& opt
->prefix_length
)
487 quote_path_relative(filename
, -1, &buf
, opt
->prefix
);
489 strbuf_addstr(&buf
, filename
);
490 name
= strbuf_detach(&buf
, NULL
);
494 grep_file_async(opt
, name
, filename
);
501 void *data
= load_file(filename
, &sz
);
505 hit
= grep_buffer(opt
, name
, data
, sz
);
513 static void append_path(struct grep_opt
*opt
, const void *data
, size_t len
)
515 struct string_list
*path_list
= opt
->output_priv
;
517 if (len
== 1 && *(const char *)data
== '\0')
519 string_list_append(path_list
, xstrndup(data
, len
));
522 static void run_pager(struct grep_opt
*opt
, const char *prefix
)
524 struct string_list
*path_list
= opt
->output_priv
;
525 const char **argv
= xmalloc(sizeof(const char *) * (path_list
->nr
+ 1));
528 for (i
= 0; i
< path_list
->nr
; i
++)
529 argv
[i
] = path_list
->items
[i
].string
;
530 argv
[path_list
->nr
] = NULL
;
532 if (prefix
&& chdir(prefix
))
533 die(_("Failed to chdir: %s"), prefix
);
534 status
= run_command_v_opt(argv
, RUN_USING_SHELL
);
540 static int grep_cache(struct grep_opt
*opt
, const struct pathspec
*pathspec
, int cached
)
546 for (nr
= 0; nr
< active_nr
; nr
++) {
547 struct cache_entry
*ce
= active_cache
[nr
];
548 if (!S_ISREG(ce
->ce_mode
))
550 if (!match_pathspec_depth(pathspec
, ce
->name
, ce_namelen(ce
), 0, NULL
))
552 if (skip_binary(opt
, ce
->name
))
556 * If CE_VALID is on, we assume worktree file and its cache entry
557 * are identical, even if worktree file has been modified, so use
558 * cache version instead
560 if (cached
|| (ce
->ce_flags
& CE_VALID
) || ce_skip_worktree(ce
)) {
563 hit
|= grep_sha1(opt
, ce
->sha1
, ce
->name
, 0);
566 hit
|= grep_file(opt
, ce
->name
);
570 } while (nr
< active_nr
&&
571 !strcmp(ce
->name
, active_cache
[nr
]->name
));
572 nr
--; /* compensate for loop control */
574 if (hit
&& opt
->status_only
)
580 static int grep_tree(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
581 struct tree_desc
*tree
, struct strbuf
*base
, int tn_len
)
584 enum interesting match
= entry_not_interesting
;
585 struct name_entry entry
;
586 int old_baselen
= base
->len
;
588 while (tree_entry(tree
, &entry
)) {
589 int te_len
= tree_entry_len(&entry
);
591 if (match
!= all_entries_interesting
) {
592 match
= tree_entry_interesting(&entry
, base
, tn_len
, pathspec
);
593 if (match
== all_entries_not_interesting
)
595 if (match
== entry_not_interesting
)
599 strbuf_add(base
, entry
.path
, te_len
);
601 if (S_ISREG(entry
.mode
)) {
602 hit
|= grep_sha1(opt
, entry
.sha1
, base
->buf
, tn_len
);
604 else if (S_ISDIR(entry
.mode
)) {
605 enum object_type type
;
606 struct tree_desc sub
;
610 data
= lock_and_read_sha1_file(entry
.sha1
, &type
, &size
);
612 die(_("unable to read tree (%s)"),
613 sha1_to_hex(entry
.sha1
));
615 strbuf_addch(base
, '/');
616 init_tree_desc(&sub
, data
, size
);
617 hit
|= grep_tree(opt
, pathspec
, &sub
, base
, tn_len
);
620 strbuf_setlen(base
, old_baselen
);
622 if (hit
&& opt
->status_only
)
628 static int grep_object(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
629 struct object
*obj
, const char *name
)
631 if (obj
->type
== OBJ_BLOB
)
632 return grep_sha1(opt
, obj
->sha1
, name
, 0);
633 if (obj
->type
== OBJ_COMMIT
|| obj
->type
== OBJ_TREE
) {
634 struct tree_desc tree
;
641 data
= read_object_with_reference(obj
->sha1
, tree_type
,
646 die(_("unable to read tree (%s)"), sha1_to_hex(obj
->sha1
));
648 len
= name
? strlen(name
) : 0;
649 strbuf_init(&base
, PATH_MAX
+ len
+ 1);
651 strbuf_add(&base
, name
, len
);
652 strbuf_addch(&base
, ':');
654 init_tree_desc(&tree
, data
, size
);
655 hit
= grep_tree(opt
, pathspec
, &tree
, &base
, base
.len
);
656 strbuf_release(&base
);
660 die(_("unable to grep from object of type %s"), typename(obj
->type
));
663 static int grep_objects(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
664 const struct object_array
*list
)
668 const unsigned int nr
= list
->nr
;
670 for (i
= 0; i
< nr
; i
++) {
671 struct object
*real_obj
;
672 real_obj
= deref_tag(list
->objects
[i
].item
, NULL
, 0);
673 if (grep_object(opt
, pathspec
, real_obj
, list
->objects
[i
].name
)) {
675 if (opt
->status_only
)
682 static int grep_directory(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
685 struct dir_struct dir
;
688 memset(&dir
, 0, sizeof(dir
));
690 setup_standard_excludes(&dir
);
692 fill_directory(&dir
, pathspec
->raw
);
693 for (i
= 0; i
< dir
.nr
; i
++) {
694 const char *name
= dir
.entries
[i
]->name
;
695 int namelen
= strlen(name
);
696 if (!match_pathspec_depth(pathspec
, name
, namelen
, 0, NULL
))
698 hit
|= grep_file(opt
, dir
.entries
[i
]->name
);
699 if (hit
&& opt
->status_only
)
705 static int context_callback(const struct option
*opt
, const char *arg
,
708 struct grep_opt
*grep_opt
= opt
->value
;
713 grep_opt
->pre_context
= grep_opt
->post_context
= 0;
716 value
= strtol(arg
, (char **)&endp
, 10);
718 return error(_("switch `%c' expects a numerical value"),
721 grep_opt
->pre_context
= grep_opt
->post_context
= value
;
725 static int file_callback(const struct option
*opt
, const char *arg
, int unset
)
727 struct grep_opt
*grep_opt
= opt
->value
;
728 int from_stdin
= !strcmp(arg
, "-");
731 struct strbuf sb
= STRBUF_INIT
;
733 patterns
= from_stdin
? stdin
: fopen(arg
, "r");
735 die_errno(_("cannot open '%s'"), arg
);
736 while (strbuf_getline(&sb
, patterns
, '\n') == 0) {
740 /* ignore empty line like grep does */
744 s
= strbuf_detach(&sb
, &len
);
745 append_grep_pat(grep_opt
, s
, len
, arg
, ++lno
, GREP_PATTERN
);
753 static int not_callback(const struct option
*opt
, const char *arg
, int unset
)
755 struct grep_opt
*grep_opt
= opt
->value
;
756 append_grep_pattern(grep_opt
, "--not", "command line", 0, GREP_NOT
);
760 static int and_callback(const struct option
*opt
, const char *arg
, int unset
)
762 struct grep_opt
*grep_opt
= opt
->value
;
763 append_grep_pattern(grep_opt
, "--and", "command line", 0, GREP_AND
);
767 static int open_callback(const struct option
*opt
, const char *arg
, int unset
)
769 struct grep_opt
*grep_opt
= opt
->value
;
770 append_grep_pattern(grep_opt
, "(", "command line", 0, GREP_OPEN_PAREN
);
774 static int close_callback(const struct option
*opt
, const char *arg
, int unset
)
776 struct grep_opt
*grep_opt
= opt
->value
;
777 append_grep_pattern(grep_opt
, ")", "command line", 0, GREP_CLOSE_PAREN
);
781 static int pattern_callback(const struct option
*opt
, const char *arg
,
784 struct grep_opt
*grep_opt
= opt
->value
;
785 append_grep_pattern(grep_opt
, arg
, "-e option", 0, GREP_PATTERN
);
789 static int help_callback(const struct option
*opt
, const char *arg
, int unset
)
794 int cmd_grep(int argc
, const char **argv
, const char *prefix
)
797 int cached
= 0, untracked
= 0, opt_exclude
= -1;
798 int seen_dashdash
= 0;
799 int external_grep_allowed__ignored
;
800 const char *show_in_pager
= NULL
, *default_pager
= "dummy";
802 struct object_array list
= OBJECT_ARRAY_INIT
;
803 const char **paths
= NULL
;
804 struct pathspec pathspec
;
805 struct string_list path_list
= STRING_LIST_INIT_NODUP
;
810 pattern_type_unspecified
= 0,
816 int pattern_type
= pattern_type_unspecified
;
818 struct option options
[] = {
819 OPT_BOOLEAN(0, "cached", &cached
,
820 "search in index instead of in the work tree"),
821 { OPTION_BOOLEAN
, 0, "index", &use_index
, NULL
,
822 "finds in contents not managed by git",
823 PARSE_OPT_NOARG
| PARSE_OPT_NEGHELP
},
824 OPT_BOOLEAN(0, "untracked", &untracked
,
825 "search in both tracked and untracked files"),
826 OPT_SET_INT(0, "exclude-standard", &opt_exclude
,
827 "search also in ignored files", 1),
829 OPT_BOOLEAN('v', "invert-match", &opt
.invert
,
830 "show non-matching lines"),
831 OPT_BOOLEAN('i', "ignore-case", &opt
.ignore_case
,
832 "case insensitive matching"),
833 OPT_BOOLEAN('w', "word-regexp", &opt
.word_regexp
,
834 "match patterns only at word boundaries"),
835 OPT_SET_INT('a', "text", &opt
.binary
,
836 "process binary files as text", GREP_BINARY_TEXT
),
837 OPT_SET_INT('I', NULL
, &opt
.binary
,
838 "don't match patterns in binary files",
839 GREP_BINARY_NOMATCH
),
840 { OPTION_INTEGER
, 0, "max-depth", &opt
.max_depth
, "depth",
841 "descend at most <depth> levels", PARSE_OPT_NONEG
,
844 OPT_SET_INT('E', "extended-regexp", &pattern_type
,
845 "use extended POSIX regular expressions",
847 OPT_SET_INT('G', "basic-regexp", &pattern_type
,
848 "use basic POSIX regular expressions (default)",
850 OPT_SET_INT('F', "fixed-strings", &pattern_type
,
851 "interpret patterns as fixed strings",
853 OPT_SET_INT('P', "perl-regexp", &pattern_type
,
854 "use Perl-compatible regular expressions",
857 OPT_BOOLEAN('n', "line-number", &opt
.linenum
, "show line numbers"),
858 OPT_NEGBIT('h', NULL
, &opt
.pathname
, "don't show filenames", 1),
859 OPT_BIT('H', NULL
, &opt
.pathname
, "show filenames", 1),
860 OPT_NEGBIT(0, "full-name", &opt
.relative
,
861 "show filenames relative to top directory", 1),
862 OPT_BOOLEAN('l', "files-with-matches", &opt
.name_only
,
863 "show only filenames instead of matching lines"),
864 OPT_BOOLEAN(0, "name-only", &opt
.name_only
,
865 "synonym for --files-with-matches"),
866 OPT_BOOLEAN('L', "files-without-match",
867 &opt
.unmatch_name_only
,
868 "show only the names of files without match"),
869 OPT_BOOLEAN('z', "null", &opt
.null_following_name
,
870 "print NUL after filenames"),
871 OPT_BOOLEAN('c', "count", &opt
.count
,
872 "show the number of matches instead of matching lines"),
873 OPT__COLOR(&opt
.color
, "highlight matches"),
874 OPT_BOOLEAN(0, "break", &opt
.file_break
,
875 "print empty line between matches from different files"),
876 OPT_BOOLEAN(0, "heading", &opt
.heading
,
877 "show filename only once above matches from same file"),
879 OPT_CALLBACK('C', "context", &opt
, "n",
880 "show <n> context lines before and after matches",
882 OPT_INTEGER('B', "before-context", &opt
.pre_context
,
883 "show <n> context lines before matches"),
884 OPT_INTEGER('A', "after-context", &opt
.post_context
,
885 "show <n> context lines after matches"),
886 OPT_NUMBER_CALLBACK(&opt
, "shortcut for -C NUM",
888 OPT_BOOLEAN('p', "show-function", &opt
.funcname
,
889 "show a line with the function name before matches"),
890 OPT_BOOLEAN('W', "function-context", &opt
.funcbody
,
891 "show the surrounding function"),
893 OPT_CALLBACK('f', NULL
, &opt
, "file",
894 "read patterns from file", file_callback
),
895 { OPTION_CALLBACK
, 'e', NULL
, &opt
, "pattern",
896 "match <pattern>", PARSE_OPT_NONEG
, pattern_callback
},
897 { OPTION_CALLBACK
, 0, "and", &opt
, NULL
,
898 "combine patterns specified with -e",
899 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, and_callback
},
900 OPT_BOOLEAN(0, "or", &dummy
, ""),
901 { OPTION_CALLBACK
, 0, "not", &opt
, NULL
, "",
902 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, not_callback
},
903 { OPTION_CALLBACK
, '(', NULL
, &opt
, NULL
, "",
904 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
906 { OPTION_CALLBACK
, ')', NULL
, &opt
, NULL
, "",
907 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
909 OPT__QUIET(&opt
.status_only
,
910 "indicate hit with exit status without output"),
911 OPT_BOOLEAN(0, "all-match", &opt
.all_match
,
912 "show only matches from files that match all patterns"),
914 { OPTION_STRING
, 'O', "open-files-in-pager", &show_in_pager
,
915 "pager", "show matching files in the pager",
916 PARSE_OPT_OPTARG
, NULL
, (intptr_t)default_pager
},
917 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored
,
918 "allow calling of grep(1) (ignored by this build)"),
919 { OPTION_CALLBACK
, 0, "help-all", &options
, NULL
, "show usage",
920 PARSE_OPT_HIDDEN
| PARSE_OPT_NOARG
, help_callback
},
925 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
926 * to show usage information and exit.
928 if (argc
== 2 && !strcmp(argv
[1], "-h"))
929 usage_with_options(grep_usage
, options
);
931 memset(&opt
, 0, sizeof(opt
));
933 opt
.prefix_length
= (prefix
&& *prefix
) ? strlen(prefix
) : 0;
936 opt
.pattern_tail
= &opt
.pattern_list
;
937 opt
.header_tail
= &opt
.header_list
;
938 opt
.regflags
= REG_NEWLINE
;
941 strcpy(opt
.color_context
, "");
942 strcpy(opt
.color_filename
, "");
943 strcpy(opt
.color_function
, "");
944 strcpy(opt
.color_lineno
, "");
945 strcpy(opt
.color_match
, GIT_COLOR_BOLD_RED
);
946 strcpy(opt
.color_selected
, "");
947 strcpy(opt
.color_sep
, GIT_COLOR_CYAN
);
949 git_config(grep_config
, &opt
);
952 * If there is no -- then the paths must exist in the working
953 * tree. If there is no explicit pattern specified with -e or
954 * -f, we take the first unrecognized non option to be the
955 * pattern, but then what follows it must be zero or more
956 * valid refs up to the -- (if exists), and then existing
957 * paths. If there is an explicit pattern, then the first
958 * unrecognized non option is the beginning of the refs list
959 * that continues up to the -- (if exists), and then paths.
961 argc
= parse_options(argc
, argv
, prefix
, options
, grep_usage
,
962 PARSE_OPT_KEEP_DASHDASH
|
963 PARSE_OPT_STOP_AT_NON_OPTION
|
964 PARSE_OPT_NO_INTERNAL_HELP
);
965 switch (pattern_type
) {
966 case pattern_type_fixed
:
970 case pattern_type_bre
:
973 opt
.regflags
&= ~REG_EXTENDED
;
975 case pattern_type_ere
:
978 opt
.regflags
|= REG_EXTENDED
;
980 case pattern_type_pcre
:
988 if (use_index
&& !startup_info
->have_repository
)
989 /* die the same way as if we did it at the beginning */
990 setup_git_directory();
993 * skip a -- separator; we know it cannot be
994 * separating revisions from pathnames if
995 * we haven't even had any patterns yet
997 if (argc
> 0 && !opt
.pattern_list
&& !strcmp(argv
[0], "--")) {
1002 /* First unrecognized non-option token */
1003 if (argc
> 0 && !opt
.pattern_list
) {
1004 append_grep_pattern(&opt
, argv
[0], "command line", 0,
1010 if (show_in_pager
== default_pager
)
1011 show_in_pager
= git_pager(1);
1012 if (show_in_pager
) {
1015 opt
.null_following_name
= 1;
1016 opt
.output_priv
= &path_list
;
1017 opt
.output
= append_path
;
1018 string_list_append(&path_list
, show_in_pager
);
1021 if ((opt
.binary
& GREP_BINARY_NOMATCH
))
1024 if (!opt
.pattern_list
)
1025 die(_("no pattern given."));
1026 if (!opt
.fixed
&& opt
.ignore_case
)
1027 opt
.regflags
|= REG_ICASE
;
1030 if (online_cpus() == 1 || !grep_threads_ok(&opt
))
1034 if (opt
.pre_context
|| opt
.post_context
|| opt
.file_break
||
1036 skip_first_line
= 1;
1037 start_threads(&opt
);
1043 compile_grep_patterns(&opt
);
1045 /* Check revs and then paths */
1046 for (i
= 0; i
< argc
; i
++) {
1047 const char *arg
= argv
[i
];
1048 unsigned char sha1
[20];
1050 if (!get_sha1(arg
, sha1
)) {
1051 struct object
*object
= parse_object(sha1
);
1053 die(_("bad object %s"), arg
);
1054 add_object_array(object
, arg
, &list
);
1057 if (!strcmp(arg
, "--")) {
1064 /* The rest are paths */
1065 if (!seen_dashdash
) {
1067 for (j
= i
; j
< argc
; j
++)
1068 verify_filename(prefix
, argv
[j
]);
1071 paths
= get_pathspec(prefix
, argv
+ i
);
1072 init_pathspec(&pathspec
, paths
);
1073 pathspec
.max_depth
= opt
.max_depth
;
1074 pathspec
.recursive
= 1;
1076 if (show_in_pager
&& (cached
|| list
.nr
))
1077 die(_("--open-files-in-pager only works on the worktree"));
1079 if (show_in_pager
&& opt
.pattern_list
&& !opt
.pattern_list
->next
) {
1080 const char *pager
= path_list
.items
[0].string
;
1081 int len
= strlen(pager
);
1083 if (len
> 4 && is_dir_sep(pager
[len
- 5]))
1086 if (opt
.ignore_case
&& !strcmp("less", pager
))
1087 string_list_append(&path_list
, "-i");
1089 if (!strcmp("less", pager
) || !strcmp("vi", pager
)) {
1090 struct strbuf buf
= STRBUF_INIT
;
1091 strbuf_addf(&buf
, "+/%s%s",
1092 strcmp("less", pager
) ? "" : "*",
1093 opt
.pattern_list
->pattern
);
1094 string_list_append(&path_list
, buf
.buf
);
1095 strbuf_detach(&buf
, NULL
);
1102 if (!use_index
&& (untracked
|| cached
))
1103 die(_("--cached or --untracked cannot be used with --no-index."));
1105 if (!use_index
|| untracked
) {
1106 int use_exclude
= (opt_exclude
< 0) ? use_index
: !!opt_exclude
;
1108 die(_("--no-index or --untracked cannot be used with revs."));
1109 hit
= grep_directory(&opt
, &pathspec
, use_exclude
);
1110 } else if (0 <= opt_exclude
) {
1111 die(_("--[no-]exclude-standard cannot be used for tracked contents."));
1112 } else if (!list
.nr
) {
1116 hit
= grep_cache(&opt
, &pathspec
, cached
);
1119 die(_("both --cached and trees are given."));
1120 hit
= grep_objects(&opt
, &pathspec
, &list
);
1125 if (hit
&& show_in_pager
)
1126 run_pager(&opt
, prefix
);
1127 free_grep_patterns(&opt
);