4 * Copyright (c) 2006 Junio C Hamano
11 #include "tree-walk.h"
13 #include "parse-options.h"
20 #include "thread-utils.h"
24 static char const * const grep_usage
[] = {
25 "git grep [options] [-e] <pattern> [<rev>...] [[--] path...]",
29 static int use_threads
= 1;
33 static pthread_t threads
[THREADS
];
35 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
37 static void *load_file(const char *filename
, size_t *sz
);
39 enum work_type
{WORK_SHA1
, WORK_FILE
};
41 /* We use one producer thread and THREADS consumer
42 * threads. The producer adds struct work_items to 'todo' and the
43 * consumers pick work items from the same array.
50 /* if type == WORK_SHA1, then 'identifier' is a SHA1,
51 * otherwise type == WORK_FILE, and 'identifier' is a NUL
52 * terminated filename.
59 /* In the range [todo_done, todo_start) in 'todo' we have work_items
60 * that have been or are processed by a consumer thread. We haven't
61 * written the result for these to stdout yet.
63 * The work_items in [todo_start, todo_end) are waiting to be picked
64 * up by a consumer thread.
66 * The ranges are modulo TODO_SIZE.
69 static struct work_item todo
[TODO_SIZE
];
70 static int todo_start
;
74 /* Has all work items been added? */
75 static int all_work_added
;
77 /* This lock protects all the variables above. */
78 static pthread_mutex_t grep_mutex
;
80 /* Used to serialize calls to read_sha1_file. */
81 static pthread_mutex_t read_sha1_mutex
;
83 #define grep_lock() pthread_mutex_lock(&grep_mutex)
84 #define grep_unlock() pthread_mutex_unlock(&grep_mutex)
85 #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex)
86 #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex)
88 /* Signalled when a new work_item is added to todo. */
89 static pthread_cond_t cond_add
;
91 /* Signalled when the result from one work_item is written to
94 static pthread_cond_t cond_write
;
96 /* Signalled when we are finished with everything. */
97 static pthread_cond_t cond_result
;
99 static int print_hunk_marks_between_files
;
100 static int printed_something
;
102 static void add_work(enum work_type type
, char *name
, void *id
)
106 while ((todo_end
+1) % ARRAY_SIZE(todo
) == todo_done
) {
107 pthread_cond_wait(&cond_write
, &grep_mutex
);
110 todo
[todo_end
].type
= type
;
111 todo
[todo_end
].name
= name
;
112 todo
[todo_end
].identifier
= id
;
113 todo
[todo_end
].done
= 0;
114 strbuf_reset(&todo
[todo_end
].out
);
115 todo_end
= (todo_end
+ 1) % ARRAY_SIZE(todo
);
117 pthread_cond_signal(&cond_add
);
121 static struct work_item
*get_work(void)
123 struct work_item
*ret
;
126 while (todo_start
== todo_end
&& !all_work_added
) {
127 pthread_cond_wait(&cond_add
, &grep_mutex
);
130 if (todo_start
== todo_end
&& all_work_added
) {
133 ret
= &todo
[todo_start
];
134 todo_start
= (todo_start
+ 1) % ARRAY_SIZE(todo
);
140 static void grep_sha1_async(struct grep_opt
*opt
, char *name
,
141 const unsigned char *sha1
)
146 add_work(WORK_SHA1
, name
, s
);
149 static void grep_file_async(struct grep_opt
*opt
, char *name
,
150 const char *filename
)
152 add_work(WORK_FILE
, name
, xstrdup(filename
));
155 static void work_done(struct work_item
*w
)
161 old_done
= todo_done
;
162 for(; todo
[todo_done
].done
&& todo_done
!= todo_start
;
163 todo_done
= (todo_done
+1) % ARRAY_SIZE(todo
)) {
164 w
= &todo
[todo_done
];
166 if (print_hunk_marks_between_files
&& printed_something
)
167 write_or_die(1, "--\n", 3);
168 write_or_die(1, w
->out
.buf
, w
->out
.len
);
169 printed_something
= 1;
175 if (old_done
!= todo_done
)
176 pthread_cond_signal(&cond_write
);
178 if (all_work_added
&& todo_done
== todo_end
)
179 pthread_cond_signal(&cond_result
);
184 static void *run(void *arg
)
187 struct grep_opt
*opt
= arg
;
190 struct work_item
*w
= get_work();
194 opt
->output_priv
= w
;
195 if (w
->type
== WORK_SHA1
) {
197 void* data
= load_sha1(w
->identifier
, &sz
, w
->name
);
200 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
203 } else if (w
->type
== WORK_FILE
) {
205 void* data
= load_file(w
->identifier
, &sz
);
207 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
216 free_grep_patterns(arg
);
219 return (void*) (intptr_t) hit
;
222 static void strbuf_out(struct grep_opt
*opt
, const void *buf
, size_t size
)
224 struct work_item
*w
= opt
->output_priv
;
225 strbuf_add(&w
->out
, buf
, size
);
228 static void start_threads(struct grep_opt
*opt
)
232 pthread_mutex_init(&grep_mutex
, NULL
);
233 pthread_mutex_init(&read_sha1_mutex
, NULL
);
234 pthread_cond_init(&cond_add
, NULL
);
235 pthread_cond_init(&cond_write
, NULL
);
236 pthread_cond_init(&cond_result
, NULL
);
238 for (i
= 0; i
< ARRAY_SIZE(todo
); i
++) {
239 strbuf_init(&todo
[i
].out
, 0);
242 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
244 struct grep_opt
*o
= grep_opt_dup(opt
);
245 o
->output
= strbuf_out
;
246 compile_grep_patterns(o
);
247 err
= pthread_create(&threads
[i
], NULL
, run
, o
);
250 die("grep: failed to create thread: %s",
255 static int wait_all(void)
263 /* Wait until all work is done. */
264 while (todo_done
!= todo_end
)
265 pthread_cond_wait(&cond_result
, &grep_mutex
);
267 /* Wake up all the consumer threads so they can see that there
268 * is no more work to do.
270 pthread_cond_broadcast(&cond_add
);
273 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
275 pthread_join(threads
[i
], &h
);
276 hit
|= (int) (intptr_t) h
;
279 pthread_mutex_destroy(&grep_mutex
);
280 pthread_mutex_destroy(&read_sha1_mutex
);
281 pthread_cond_destroy(&cond_add
);
282 pthread_cond_destroy(&cond_write
);
283 pthread_cond_destroy(&cond_result
);
287 #else /* !NO_PTHREADS */
288 #define read_sha1_lock()
289 #define read_sha1_unlock()
291 static int wait_all(void)
297 static int grep_config(const char *var
, const char *value
, void *cb
)
299 struct grep_opt
*opt
= cb
;
301 switch (userdiff_config(var
, value
)) {
307 if (!strcmp(var
, "color.grep")) {
308 opt
->color
= git_config_colorbool(var
, value
, -1);
311 if (!strcmp(var
, "color.grep.match")) {
313 return config_error_nonbool(var
);
314 color_parse(value
, var
, opt
->color_match
);
317 return git_color_default_config(var
, value
, cb
);
321 * Return non-zero if max_depth is negative or path has no more then max_depth
324 static int accept_subdir(const char *path
, int max_depth
)
329 while ((path
= strchr(path
, '/')) != NULL
) {
339 * Return non-zero if name is a subdirectory of match and is not too deep.
341 static int is_subdir(const char *name
, int namelen
,
342 const char *match
, int matchlen
, int max_depth
)
344 if (matchlen
> namelen
|| strncmp(name
, match
, matchlen
))
347 if (name
[matchlen
] == '\0') /* exact match */
350 if (!matchlen
|| match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
351 return accept_subdir(name
+ matchlen
+ 1, max_depth
);
357 * git grep pathspecs are somewhat different from diff-tree pathspecs;
358 * pathname wildcards are allowed.
360 static int pathspec_matches(const char **paths
, const char *name
, int max_depth
)
363 if (!paths
|| !*paths
)
364 return accept_subdir(name
, max_depth
);
365 namelen
= strlen(name
);
366 for (i
= 0; paths
[i
]; i
++) {
367 const char *match
= paths
[i
];
368 int matchlen
= strlen(match
);
369 const char *cp
, *meta
;
371 if (is_subdir(name
, namelen
, match
, matchlen
, max_depth
))
373 if (!fnmatch(match
, name
, 0))
375 if (name
[namelen
-1] != '/')
378 /* We are being asked if the directory ("name") is worth
381 * Find the longest leading directory name that does
382 * not have metacharacter in the pathspec; the name
383 * we are looking at must overlap with that directory.
385 for (cp
= match
, meta
= NULL
; cp
- match
< matchlen
; cp
++) {
387 if (ch
== '*' || ch
== '[' || ch
== '?') {
393 meta
= cp
; /* fully literal */
395 if (namelen
<= meta
- match
) {
396 /* Looking at "Documentation/" and
397 * the pattern says "Documentation/howto/", or
398 * "Documentation/diff*.txt". The name we
399 * have should match prefix.
401 if (!memcmp(match
, name
, namelen
))
406 if (meta
- match
< namelen
) {
407 /* Looking at "Documentation/howto/" and
408 * the pattern says "Documentation/h*";
409 * match up to "Do.../h"; this avoids descending
410 * into "Documentation/technical/".
412 if (!memcmp(match
, name
, meta
- match
))
420 static void *lock_and_read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
426 data
= read_sha1_file(sha1
, type
, size
);
429 data
= read_sha1_file(sha1
, type
, size
);
434 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
437 enum object_type type
;
438 void *data
= lock_and_read_sha1_file(sha1
, &type
, size
);
441 error("'%s': unable to read %s", name
, sha1_to_hex(sha1
));
446 static int grep_sha1(struct grep_opt
*opt
, const unsigned char *sha1
,
447 const char *filename
, int tree_name_len
)
449 struct strbuf pathbuf
= STRBUF_INIT
;
452 if (opt
->relative
&& opt
->prefix_length
) {
453 quote_path_relative(filename
+ tree_name_len
, -1, &pathbuf
,
455 strbuf_insert(&pathbuf
, 0, filename
, tree_name_len
);
457 strbuf_addstr(&pathbuf
, filename
);
460 name
= strbuf_detach(&pathbuf
, NULL
);
464 grep_sha1_async(opt
, name
, sha1
);
471 void *data
= load_sha1(sha1
, &sz
, name
);
475 hit
= grep_buffer(opt
, name
, data
, sz
);
483 static void *load_file(const char *filename
, size_t *sz
)
489 if (lstat(filename
, &st
) < 0) {
492 error("'%s': %s", filename
, strerror(errno
));
495 if (!S_ISREG(st
.st_mode
))
497 *sz
= xsize_t(st
.st_size
);
498 i
= open(filename
, O_RDONLY
);
501 data
= xmalloc(*sz
+ 1);
502 if (st
.st_size
!= read_in_full(i
, data
, *sz
)) {
503 error("'%s': short read %s", filename
, strerror(errno
));
513 static int grep_file(struct grep_opt
*opt
, const char *filename
)
515 struct strbuf buf
= STRBUF_INIT
;
518 if (opt
->relative
&& opt
->prefix_length
)
519 quote_path_relative(filename
, -1, &buf
, opt
->prefix
);
521 strbuf_addstr(&buf
, filename
);
522 name
= strbuf_detach(&buf
, NULL
);
526 grep_file_async(opt
, name
, filename
);
533 void *data
= load_file(filename
, &sz
);
537 hit
= grep_buffer(opt
, name
, data
, sz
);
545 static int grep_cache(struct grep_opt
*opt
, const char **paths
, int cached
)
551 for (nr
= 0; nr
< active_nr
; nr
++) {
552 struct cache_entry
*ce
= active_cache
[nr
];
553 if (!S_ISREG(ce
->ce_mode
))
555 if (!pathspec_matches(paths
, ce
->name
, opt
->max_depth
))
558 * If CE_VALID is on, we assume worktree file and its cache entry
559 * are identical, even if worktree file has been modified, so use
560 * cache version instead
562 if (cached
|| (ce
->ce_flags
& CE_VALID
) || ce_skip_worktree(ce
)) {
565 hit
|= grep_sha1(opt
, ce
->sha1
, ce
->name
, 0);
568 hit
|= grep_file(opt
, ce
->name
);
572 } while (nr
< active_nr
&&
573 !strcmp(ce
->name
, active_cache
[nr
]->name
));
574 nr
--; /* compensate for loop control */
576 if (hit
&& opt
->status_only
)
579 free_grep_patterns(opt
);
583 static int grep_tree(struct grep_opt
*opt
, const char **paths
,
584 struct tree_desc
*tree
,
585 const char *tree_name
, const char *base
)
589 struct name_entry entry
;
591 int tn_len
= strlen(tree_name
);
592 struct strbuf pathbuf
;
594 strbuf_init(&pathbuf
, PATH_MAX
+ tn_len
);
597 strbuf_add(&pathbuf
, tree_name
, tn_len
);
598 strbuf_addch(&pathbuf
, ':');
599 tn_len
= pathbuf
.len
;
601 strbuf_addstr(&pathbuf
, base
);
604 while (tree_entry(tree
, &entry
)) {
605 int te_len
= tree_entry_len(entry
.path
, entry
.sha1
);
607 strbuf_add(&pathbuf
, entry
.path
, te_len
);
609 if (S_ISDIR(entry
.mode
))
610 /* Match "abc/" against pathspec to
611 * decide if we want to descend into "abc"
614 strbuf_addch(&pathbuf
, '/');
616 down
= pathbuf
.buf
+ tn_len
;
617 if (!pathspec_matches(paths
, down
, opt
->max_depth
))
619 else if (S_ISREG(entry
.mode
))
620 hit
|= grep_sha1(opt
, entry
.sha1
, pathbuf
.buf
, tn_len
);
621 else if (S_ISDIR(entry
.mode
)) {
622 enum object_type type
;
623 struct tree_desc sub
;
627 data
= lock_and_read_sha1_file(entry
.sha1
, &type
, &size
);
629 die("unable to read tree (%s)",
630 sha1_to_hex(entry
.sha1
));
631 init_tree_desc(&sub
, data
, size
);
632 hit
|= grep_tree(opt
, paths
, &sub
, tree_name
, down
);
635 if (hit
&& opt
->status_only
)
638 strbuf_release(&pathbuf
);
642 static int grep_object(struct grep_opt
*opt
, const char **paths
,
643 struct object
*obj
, const char *name
)
645 if (obj
->type
== OBJ_BLOB
)
646 return grep_sha1(opt
, obj
->sha1
, name
, 0);
647 if (obj
->type
== OBJ_COMMIT
|| obj
->type
== OBJ_TREE
) {
648 struct tree_desc tree
;
652 data
= read_object_with_reference(obj
->sha1
, tree_type
,
655 die("unable to read tree (%s)", sha1_to_hex(obj
->sha1
));
656 init_tree_desc(&tree
, data
, size
);
657 hit
= grep_tree(opt
, paths
, &tree
, name
, "");
661 die("unable to grep from object of type %s", typename(obj
->type
));
664 static int grep_directory(struct grep_opt
*opt
, const char **paths
)
666 struct dir_struct dir
;
669 memset(&dir
, 0, sizeof(dir
));
670 setup_standard_excludes(&dir
);
672 fill_directory(&dir
, paths
);
673 for (i
= 0; i
< dir
.nr
; i
++) {
674 hit
|= grep_file(opt
, dir
.entries
[i
]->name
);
675 if (hit
&& opt
->status_only
)
678 free_grep_patterns(opt
);
682 static int context_callback(const struct option
*opt
, const char *arg
,
685 struct grep_opt
*grep_opt
= opt
->value
;
690 grep_opt
->pre_context
= grep_opt
->post_context
= 0;
693 value
= strtol(arg
, (char **)&endp
, 10);
695 return error("switch `%c' expects a numerical value",
698 grep_opt
->pre_context
= grep_opt
->post_context
= value
;
702 static int file_callback(const struct option
*opt
, const char *arg
, int unset
)
704 struct grep_opt
*grep_opt
= opt
->value
;
707 struct strbuf sb
= STRBUF_INIT
;
709 patterns
= fopen(arg
, "r");
711 die_errno("cannot open '%s'", arg
);
712 while (strbuf_getline(&sb
, patterns
, '\n') == 0) {
713 /* ignore empty line like grep does */
716 append_grep_pattern(grep_opt
, strbuf_detach(&sb
, NULL
), arg
,
717 ++lno
, GREP_PATTERN
);
724 static int not_callback(const struct option
*opt
, const char *arg
, int unset
)
726 struct grep_opt
*grep_opt
= opt
->value
;
727 append_grep_pattern(grep_opt
, "--not", "command line", 0, GREP_NOT
);
731 static int and_callback(const struct option
*opt
, const char *arg
, int unset
)
733 struct grep_opt
*grep_opt
= opt
->value
;
734 append_grep_pattern(grep_opt
, "--and", "command line", 0, GREP_AND
);
738 static int open_callback(const struct option
*opt
, const char *arg
, int unset
)
740 struct grep_opt
*grep_opt
= opt
->value
;
741 append_grep_pattern(grep_opt
, "(", "command line", 0, GREP_OPEN_PAREN
);
745 static int close_callback(const struct option
*opt
, const char *arg
, int unset
)
747 struct grep_opt
*grep_opt
= opt
->value
;
748 append_grep_pattern(grep_opt
, ")", "command line", 0, GREP_CLOSE_PAREN
);
752 static int pattern_callback(const struct option
*opt
, const char *arg
,
755 struct grep_opt
*grep_opt
= opt
->value
;
756 append_grep_pattern(grep_opt
, arg
, "-e option", 0, GREP_PATTERN
);
760 static int help_callback(const struct option
*opt
, const char *arg
, int unset
)
765 int cmd_grep(int argc
, const char **argv
, const char *prefix
)
769 int seen_dashdash
= 0;
770 int external_grep_allowed__ignored
;
772 struct object_array list
= { 0, 0, NULL
};
773 const char **paths
= NULL
;
776 int nongit
= 0, use_index
= 1;
777 struct option options
[] = {
778 OPT_BOOLEAN(0, "cached", &cached
,
779 "search in index instead of in the work tree"),
780 OPT_BOOLEAN(0, "index", &use_index
,
781 "--no-index finds in contents not managed by git"),
783 OPT_BOOLEAN('v', "invert-match", &opt
.invert
,
784 "show non-matching lines"),
785 OPT_BOOLEAN('i', "ignore-case", &opt
.ignore_case
,
786 "case insensitive matching"),
787 OPT_BOOLEAN('w', "word-regexp", &opt
.word_regexp
,
788 "match patterns only at word boundaries"),
789 OPT_SET_INT('a', "text", &opt
.binary
,
790 "process binary files as text", GREP_BINARY_TEXT
),
791 OPT_SET_INT('I', NULL
, &opt
.binary
,
792 "don't match patterns in binary files",
793 GREP_BINARY_NOMATCH
),
794 { OPTION_INTEGER
, 0, "max-depth", &opt
.max_depth
, "depth",
795 "descend at most <depth> levels", PARSE_OPT_NONEG
,
798 OPT_BIT('E', "extended-regexp", &opt
.regflags
,
799 "use extended POSIX regular expressions", REG_EXTENDED
),
800 OPT_NEGBIT('G', "basic-regexp", &opt
.regflags
,
801 "use basic POSIX regular expressions (default)",
803 OPT_BOOLEAN('F', "fixed-strings", &opt
.fixed
,
804 "interpret patterns as fixed strings"),
806 OPT_BOOLEAN('n', NULL
, &opt
.linenum
, "show line numbers"),
807 OPT_NEGBIT('h', NULL
, &opt
.pathname
, "don't show filenames", 1),
808 OPT_BIT('H', NULL
, &opt
.pathname
, "show filenames", 1),
809 OPT_NEGBIT(0, "full-name", &opt
.relative
,
810 "show filenames relative to top directory", 1),
811 OPT_BOOLEAN('l', "files-with-matches", &opt
.name_only
,
812 "show only filenames instead of matching lines"),
813 OPT_BOOLEAN(0, "name-only", &opt
.name_only
,
814 "synonym for --files-with-matches"),
815 OPT_BOOLEAN('L', "files-without-match",
816 &opt
.unmatch_name_only
,
817 "show only the names of files without match"),
818 OPT_BOOLEAN('z', "null", &opt
.null_following_name
,
819 "print NUL after filenames"),
820 OPT_BOOLEAN('c', "count", &opt
.count
,
821 "show the number of matches instead of matching lines"),
822 OPT__COLOR(&opt
.color
, "highlight matches"),
824 OPT_CALLBACK('C', NULL
, &opt
, "n",
825 "show <n> context lines before and after matches",
827 OPT_INTEGER('B', NULL
, &opt
.pre_context
,
828 "show <n> context lines before matches"),
829 OPT_INTEGER('A', NULL
, &opt
.post_context
,
830 "show <n> context lines after matches"),
831 OPT_NUMBER_CALLBACK(&opt
, "shortcut for -C NUM",
833 OPT_BOOLEAN('p', "show-function", &opt
.funcname
,
834 "show a line with the function name before matches"),
836 OPT_CALLBACK('f', NULL
, &opt
, "file",
837 "read patterns from file", file_callback
),
838 { OPTION_CALLBACK
, 'e', NULL
, &opt
, "pattern",
839 "match <pattern>", PARSE_OPT_NONEG
, pattern_callback
},
840 { OPTION_CALLBACK
, 0, "and", &opt
, NULL
,
841 "combine patterns specified with -e",
842 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, and_callback
},
843 OPT_BOOLEAN(0, "or", &dummy
, ""),
844 { OPTION_CALLBACK
, 0, "not", &opt
, NULL
, "",
845 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, not_callback
},
846 { OPTION_CALLBACK
, '(', NULL
, &opt
, NULL
, "",
847 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
849 { OPTION_CALLBACK
, ')', NULL
, &opt
, NULL
, "",
850 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
852 OPT_BOOLEAN('q', "quiet", &opt
.status_only
,
853 "indicate hit with exit status without output"),
854 OPT_BOOLEAN(0, "all-match", &opt
.all_match
,
855 "show only matches from files that match all patterns"),
857 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored
,
858 "allow calling of grep(1) (ignored by this build)"),
859 { OPTION_CALLBACK
, 0, "help-all", &options
, NULL
, "show usage",
860 PARSE_OPT_HIDDEN
| PARSE_OPT_NOARG
, help_callback
},
864 prefix
= setup_git_directory_gently(&nongit
);
867 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
868 * to show usage information and exit.
870 if (argc
== 2 && !strcmp(argv
[1], "-h"))
871 usage_with_options(grep_usage
, options
);
873 memset(&opt
, 0, sizeof(opt
));
875 opt
.prefix_length
= (prefix
&& *prefix
) ? strlen(prefix
) : 0;
878 opt
.pattern_tail
= &opt
.pattern_list
;
879 opt
.header_tail
= &opt
.header_list
;
880 opt
.regflags
= REG_NEWLINE
;
883 strcpy(opt
.color_match
, GIT_COLOR_RED GIT_COLOR_BOLD
);
885 git_config(grep_config
, &opt
);
887 opt
.color
= git_use_color_default
;
890 * If there is no -- then the paths must exist in the working
891 * tree. If there is no explicit pattern specified with -e or
892 * -f, we take the first unrecognized non option to be the
893 * pattern, but then what follows it must be zero or more
894 * valid refs up to the -- (if exists), and then existing
895 * paths. If there is an explicit pattern, then the first
896 * unrecognized non option is the beginning of the refs list
897 * that continues up to the -- (if exists), and then paths.
899 argc
= parse_options(argc
, argv
, prefix
, options
, grep_usage
,
900 PARSE_OPT_KEEP_DASHDASH
|
901 PARSE_OPT_STOP_AT_NON_OPTION
|
902 PARSE_OPT_NO_INTERNAL_HELP
);
904 if (use_index
&& nongit
)
905 /* die the same way as if we did it at the beginning */
906 setup_git_directory();
909 * skip a -- separator; we know it cannot be
910 * separating revisions from pathnames if
911 * we haven't even had any patterns yet
913 if (argc
> 0 && !opt
.pattern_list
&& !strcmp(argv
[0], "--")) {
918 /* First unrecognized non-option token */
919 if (argc
> 0 && !opt
.pattern_list
) {
920 append_grep_pattern(&opt
, argv
[0], "command line", 0,
926 if (!opt
.pattern_list
)
927 die("no pattern given.");
928 if (!opt
.fixed
&& opt
.ignore_case
)
929 opt
.regflags
|= REG_ICASE
;
930 if ((opt
.regflags
!= REG_NEWLINE
) && opt
.fixed
)
931 die("cannot mix --fixed-strings and regexp");
934 if (online_cpus() == 1 || !grep_threads_ok(&opt
))
938 if (opt
.pre_context
|| opt
.post_context
)
939 print_hunk_marks_between_files
= 1;
946 compile_grep_patterns(&opt
);
948 /* Check revs and then paths */
949 for (i
= 0; i
< argc
; i
++) {
950 const char *arg
= argv
[i
];
951 unsigned char sha1
[20];
953 if (!get_sha1(arg
, sha1
)) {
954 struct object
*object
= parse_object(sha1
);
956 die("bad object %s", arg
);
957 add_object_array(object
, arg
, &list
);
960 if (!strcmp(arg
, "--")) {
967 /* The rest are paths */
968 if (!seen_dashdash
) {
970 for (j
= i
; j
< argc
; j
++)
971 verify_filename(prefix
, argv
[j
]);
975 paths
= get_pathspec(prefix
, argv
+ i
);
977 paths
= xcalloc(2, sizeof(const char *));
985 die("--cached cannot be used with --no-index.");
987 die("--no-index cannot be used with revs.");
988 hit
= grep_directory(&opt
, paths
);
999 hit
= grep_cache(&opt
, paths
, cached
);
1006 die("both --cached and trees are given.");
1008 for (i
= 0; i
< list
.nr
; i
++) {
1009 struct object
*real_obj
;
1010 real_obj
= deref_tag(list
.objects
[i
].item
, NULL
, 0);
1011 if (grep_object(&opt
, paths
, real_obj
, list
.objects
[i
].name
)) {
1013 if (opt
.status_only
)
1020 free_grep_patterns(&opt
);