4 * Copyright (c) 2006 Junio C Hamano
11 #include "tree-walk.h"
13 #include "parse-options.h"
14 #include "string-list.h"
15 #include "run-command.h"
20 #include "thread-utils.h"
22 static char const * const grep_usage
[] = {
23 "git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]",
27 static int use_threads
= 1;
31 static pthread_t threads
[THREADS
];
33 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
35 static void *load_file(const char *filename
, size_t *sz
);
37 enum work_type
{WORK_SHA1
, WORK_FILE
};
39 /* We use one producer thread and THREADS consumer
40 * threads. The producer adds struct work_items to 'todo' and the
41 * consumers pick work items from the same array.
47 /* if type == WORK_SHA1, then 'identifier' is a SHA1,
48 * otherwise type == WORK_FILE, and 'identifier' is a NUL
49 * terminated filename.
56 /* In the range [todo_done, todo_start) in 'todo' we have work_items
57 * that have been or are processed by a consumer thread. We haven't
58 * written the result for these to stdout yet.
60 * The work_items in [todo_start, todo_end) are waiting to be picked
61 * up by a consumer thread.
63 * The ranges are modulo TODO_SIZE.
66 static struct work_item todo
[TODO_SIZE
];
67 static int todo_start
;
71 /* Has all work items been added? */
72 static int all_work_added
;
74 /* This lock protects all the variables above. */
75 static pthread_mutex_t grep_mutex
;
77 /* Used to serialize calls to read_sha1_file. */
78 static pthread_mutex_t read_sha1_mutex
;
80 #define grep_lock() pthread_mutex_lock(&grep_mutex)
81 #define grep_unlock() pthread_mutex_unlock(&grep_mutex)
82 #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex)
83 #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex)
85 /* Signalled when a new work_item is added to todo. */
86 static pthread_cond_t cond_add
;
88 /* Signalled when the result from one work_item is written to
91 static pthread_cond_t cond_write
;
93 /* Signalled when we are finished with everything. */
94 static pthread_cond_t cond_result
;
96 static int print_hunk_marks_between_files
;
97 static int printed_something
;
99 static void add_work(enum work_type type
, char *name
, void *id
)
103 while ((todo_end
+1) % ARRAY_SIZE(todo
) == todo_done
) {
104 pthread_cond_wait(&cond_write
, &grep_mutex
);
107 todo
[todo_end
].type
= type
;
108 todo
[todo_end
].name
= name
;
109 todo
[todo_end
].identifier
= id
;
110 todo
[todo_end
].done
= 0;
111 strbuf_reset(&todo
[todo_end
].out
);
112 todo_end
= (todo_end
+ 1) % ARRAY_SIZE(todo
);
114 pthread_cond_signal(&cond_add
);
118 static struct work_item
*get_work(void)
120 struct work_item
*ret
;
123 while (todo_start
== todo_end
&& !all_work_added
) {
124 pthread_cond_wait(&cond_add
, &grep_mutex
);
127 if (todo_start
== todo_end
&& all_work_added
) {
130 ret
= &todo
[todo_start
];
131 todo_start
= (todo_start
+ 1) % ARRAY_SIZE(todo
);
137 static void grep_sha1_async(struct grep_opt
*opt
, char *name
,
138 const unsigned char *sha1
)
143 add_work(WORK_SHA1
, name
, s
);
146 static void grep_file_async(struct grep_opt
*opt
, char *name
,
147 const char *filename
)
149 add_work(WORK_FILE
, name
, xstrdup(filename
));
152 static void work_done(struct work_item
*w
)
158 old_done
= todo_done
;
159 for(; todo
[todo_done
].done
&& todo_done
!= todo_start
;
160 todo_done
= (todo_done
+1) % ARRAY_SIZE(todo
)) {
161 w
= &todo
[todo_done
];
163 if (print_hunk_marks_between_files
&& printed_something
)
164 write_or_die(1, "--\n", 3);
165 write_or_die(1, w
->out
.buf
, w
->out
.len
);
166 printed_something
= 1;
172 if (old_done
!= todo_done
)
173 pthread_cond_signal(&cond_write
);
175 if (all_work_added
&& todo_done
== todo_end
)
176 pthread_cond_signal(&cond_result
);
181 static void *run(void *arg
)
184 struct grep_opt
*opt
= arg
;
187 struct work_item
*w
= get_work();
191 opt
->output_priv
= w
;
192 if (w
->type
== WORK_SHA1
) {
194 void* data
= load_sha1(w
->identifier
, &sz
, w
->name
);
197 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
200 } else if (w
->type
== WORK_FILE
) {
202 void* data
= load_file(w
->identifier
, &sz
);
204 hit
|= grep_buffer(opt
, w
->name
, data
, sz
);
213 free_grep_patterns(arg
);
216 return (void*) (intptr_t) hit
;
219 static void strbuf_out(struct grep_opt
*opt
, const void *buf
, size_t size
)
221 struct work_item
*w
= opt
->output_priv
;
222 strbuf_add(&w
->out
, buf
, size
);
225 static void start_threads(struct grep_opt
*opt
)
229 pthread_mutex_init(&grep_mutex
, NULL
);
230 pthread_mutex_init(&read_sha1_mutex
, NULL
);
231 pthread_cond_init(&cond_add
, NULL
);
232 pthread_cond_init(&cond_write
, NULL
);
233 pthread_cond_init(&cond_result
, NULL
);
235 for (i
= 0; i
< ARRAY_SIZE(todo
); i
++) {
236 strbuf_init(&todo
[i
].out
, 0);
239 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
241 struct grep_opt
*o
= grep_opt_dup(opt
);
242 o
->output
= strbuf_out
;
243 compile_grep_patterns(o
);
244 err
= pthread_create(&threads
[i
], NULL
, run
, o
);
247 die(_("grep: failed to create thread: %s"),
252 static int wait_all(void)
260 /* Wait until all work is done. */
261 while (todo_done
!= todo_end
)
262 pthread_cond_wait(&cond_result
, &grep_mutex
);
264 /* Wake up all the consumer threads so they can see that there
265 * is no more work to do.
267 pthread_cond_broadcast(&cond_add
);
270 for (i
= 0; i
< ARRAY_SIZE(threads
); i
++) {
272 pthread_join(threads
[i
], &h
);
273 hit
|= (int) (intptr_t) h
;
276 pthread_mutex_destroy(&grep_mutex
);
277 pthread_mutex_destroy(&read_sha1_mutex
);
278 pthread_cond_destroy(&cond_add
);
279 pthread_cond_destroy(&cond_write
);
280 pthread_cond_destroy(&cond_result
);
284 #else /* !NO_PTHREADS */
285 #define read_sha1_lock()
286 #define read_sha1_unlock()
288 static int wait_all(void)
294 static int grep_config(const char *var
, const char *value
, void *cb
)
296 struct grep_opt
*opt
= cb
;
299 switch (userdiff_config(var
, value
)) {
305 if (!strcmp(var
, "grep.extendedregexp")) {
306 if (git_config_bool(var
, value
))
307 opt
->regflags
|= REG_EXTENDED
;
309 opt
->regflags
&= ~REG_EXTENDED
;
313 if (!strcmp(var
, "grep.linenumber")) {
314 opt
->linenum
= git_config_bool(var
, value
);
318 if (!strcmp(var
, "color.grep"))
319 opt
->color
= git_config_colorbool(var
, value
, -1);
320 else if (!strcmp(var
, "color.grep.context"))
321 color
= opt
->color_context
;
322 else if (!strcmp(var
, "color.grep.filename"))
323 color
= opt
->color_filename
;
324 else if (!strcmp(var
, "color.grep.function"))
325 color
= opt
->color_function
;
326 else if (!strcmp(var
, "color.grep.linenumber"))
327 color
= opt
->color_lineno
;
328 else if (!strcmp(var
, "color.grep.match"))
329 color
= opt
->color_match
;
330 else if (!strcmp(var
, "color.grep.selected"))
331 color
= opt
->color_selected
;
332 else if (!strcmp(var
, "color.grep.separator"))
333 color
= opt
->color_sep
;
335 return git_color_default_config(var
, value
, cb
);
338 return config_error_nonbool(var
);
339 color_parse(value
, var
, color
);
344 static void *lock_and_read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
350 data
= read_sha1_file(sha1
, type
, size
);
353 data
= read_sha1_file(sha1
, type
, size
);
358 static void *load_sha1(const unsigned char *sha1
, unsigned long *size
,
361 enum object_type type
;
362 void *data
= lock_and_read_sha1_file(sha1
, &type
, size
);
365 error(_("'%s': unable to read %s"), name
, sha1_to_hex(sha1
));
370 static int grep_sha1(struct grep_opt
*opt
, const unsigned char *sha1
,
371 const char *filename
, int tree_name_len
)
373 struct strbuf pathbuf
= STRBUF_INIT
;
376 if (opt
->relative
&& opt
->prefix_length
) {
377 quote_path_relative(filename
+ tree_name_len
, -1, &pathbuf
,
379 strbuf_insert(&pathbuf
, 0, filename
, tree_name_len
);
381 strbuf_addstr(&pathbuf
, filename
);
384 name
= strbuf_detach(&pathbuf
, NULL
);
388 grep_sha1_async(opt
, name
, sha1
);
395 void *data
= load_sha1(sha1
, &sz
, name
);
399 hit
= grep_buffer(opt
, name
, data
, sz
);
407 static void *load_file(const char *filename
, size_t *sz
)
413 if (lstat(filename
, &st
) < 0) {
416 error(_("'%s': %s"), filename
, strerror(errno
));
419 if (!S_ISREG(st
.st_mode
))
421 *sz
= xsize_t(st
.st_size
);
422 i
= open(filename
, O_RDONLY
);
425 data
= xmalloc(*sz
+ 1);
426 if (st
.st_size
!= read_in_full(i
, data
, *sz
)) {
427 error(_("'%s': short read %s"), filename
, strerror(errno
));
437 static int grep_file(struct grep_opt
*opt
, const char *filename
)
439 struct strbuf buf
= STRBUF_INIT
;
442 if (opt
->relative
&& opt
->prefix_length
)
443 quote_path_relative(filename
, -1, &buf
, opt
->prefix
);
445 strbuf_addstr(&buf
, filename
);
446 name
= strbuf_detach(&buf
, NULL
);
450 grep_file_async(opt
, name
, filename
);
457 void *data
= load_file(filename
, &sz
);
461 hit
= grep_buffer(opt
, name
, data
, sz
);
469 static void append_path(struct grep_opt
*opt
, const void *data
, size_t len
)
471 struct string_list
*path_list
= opt
->output_priv
;
473 if (len
== 1 && *(const char *)data
== '\0')
475 string_list_append(path_list
, xstrndup(data
, len
));
478 static void run_pager(struct grep_opt
*opt
, const char *prefix
)
480 struct string_list
*path_list
= opt
->output_priv
;
481 const char **argv
= xmalloc(sizeof(const char *) * (path_list
->nr
+ 1));
484 for (i
= 0; i
< path_list
->nr
; i
++)
485 argv
[i
] = path_list
->items
[i
].string
;
486 argv
[path_list
->nr
] = NULL
;
488 if (prefix
&& chdir(prefix
))
489 die(_("Failed to chdir: %s"), prefix
);
490 status
= run_command_v_opt(argv
, RUN_USING_SHELL
);
496 static int grep_cache(struct grep_opt
*opt
, const struct pathspec
*pathspec
, int cached
)
502 for (nr
= 0; nr
< active_nr
; nr
++) {
503 struct cache_entry
*ce
= active_cache
[nr
];
504 if (!S_ISREG(ce
->ce_mode
))
506 if (!match_pathspec_depth(pathspec
, ce
->name
, ce_namelen(ce
), 0, NULL
))
509 * If CE_VALID is on, we assume worktree file and its cache entry
510 * are identical, even if worktree file has been modified, so use
511 * cache version instead
513 if (cached
|| (ce
->ce_flags
& CE_VALID
) || ce_skip_worktree(ce
)) {
516 hit
|= grep_sha1(opt
, ce
->sha1
, ce
->name
, 0);
519 hit
|= grep_file(opt
, ce
->name
);
523 } while (nr
< active_nr
&&
524 !strcmp(ce
->name
, active_cache
[nr
]->name
));
525 nr
--; /* compensate for loop control */
527 if (hit
&& opt
->status_only
)
533 static int grep_tree(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
534 struct tree_desc
*tree
, struct strbuf
*base
, int tn_len
)
536 int hit
= 0, match
= 0;
537 struct name_entry entry
;
538 int old_baselen
= base
->len
;
540 while (tree_entry(tree
, &entry
)) {
541 int te_len
= tree_entry_len(entry
.path
, entry
.sha1
);
544 match
= tree_entry_interesting(&entry
, base
, tn_len
, pathspec
);
551 strbuf_add(base
, entry
.path
, te_len
);
553 if (S_ISREG(entry
.mode
)) {
554 hit
|= grep_sha1(opt
, entry
.sha1
, base
->buf
, tn_len
);
556 else if (S_ISDIR(entry
.mode
)) {
557 enum object_type type
;
558 struct tree_desc sub
;
562 data
= lock_and_read_sha1_file(entry
.sha1
, &type
, &size
);
564 die(_("unable to read tree (%s)"),
565 sha1_to_hex(entry
.sha1
));
567 strbuf_addch(base
, '/');
568 init_tree_desc(&sub
, data
, size
);
569 hit
|= grep_tree(opt
, pathspec
, &sub
, base
, tn_len
);
572 strbuf_setlen(base
, old_baselen
);
574 if (hit
&& opt
->status_only
)
580 static int grep_object(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
581 struct object
*obj
, const char *name
)
583 if (obj
->type
== OBJ_BLOB
)
584 return grep_sha1(opt
, obj
->sha1
, name
, 0);
585 if (obj
->type
== OBJ_COMMIT
|| obj
->type
== OBJ_TREE
) {
586 struct tree_desc tree
;
592 data
= read_object_with_reference(obj
->sha1
, tree_type
,
595 die(_("unable to read tree (%s)"), sha1_to_hex(obj
->sha1
));
597 len
= name
? strlen(name
) : 0;
598 strbuf_init(&base
, PATH_MAX
+ len
+ 1);
600 strbuf_add(&base
, name
, len
);
601 strbuf_addch(&base
, ':');
603 init_tree_desc(&tree
, data
, size
);
604 hit
= grep_tree(opt
, pathspec
, &tree
, &base
, base
.len
);
605 strbuf_release(&base
);
609 die(_("unable to grep from object of type %s"), typename(obj
->type
));
612 static int grep_objects(struct grep_opt
*opt
, const struct pathspec
*pathspec
,
613 const struct object_array
*list
)
617 const unsigned int nr
= list
->nr
;
619 for (i
= 0; i
< nr
; i
++) {
620 struct object
*real_obj
;
621 real_obj
= deref_tag(list
->objects
[i
].item
, NULL
, 0);
622 if (grep_object(opt
, pathspec
, real_obj
, list
->objects
[i
].name
)) {
624 if (opt
->status_only
)
631 static int grep_directory(struct grep_opt
*opt
, const struct pathspec
*pathspec
)
633 struct dir_struct dir
;
636 memset(&dir
, 0, sizeof(dir
));
637 setup_standard_excludes(&dir
);
639 fill_directory(&dir
, pathspec
->raw
);
640 for (i
= 0; i
< dir
.nr
; i
++) {
641 const char *name
= dir
.entries
[i
]->name
;
642 int namelen
= strlen(name
);
643 if (!match_pathspec_depth(pathspec
, name
, namelen
, 0, NULL
))
645 hit
|= grep_file(opt
, dir
.entries
[i
]->name
);
646 if (hit
&& opt
->status_only
)
652 static int context_callback(const struct option
*opt
, const char *arg
,
655 struct grep_opt
*grep_opt
= opt
->value
;
660 grep_opt
->pre_context
= grep_opt
->post_context
= 0;
663 value
= strtol(arg
, (char **)&endp
, 10);
665 return error(_("switch `%c' expects a numerical value"),
668 grep_opt
->pre_context
= grep_opt
->post_context
= value
;
672 static int file_callback(const struct option
*opt
, const char *arg
, int unset
)
674 struct grep_opt
*grep_opt
= opt
->value
;
675 int from_stdin
= !strcmp(arg
, "-");
678 struct strbuf sb
= STRBUF_INIT
;
680 patterns
= from_stdin
? stdin
: fopen(arg
, "r");
682 die_errno(_("cannot open '%s'"), arg
);
683 while (strbuf_getline(&sb
, patterns
, '\n') == 0) {
687 /* ignore empty line like grep does */
691 s
= strbuf_detach(&sb
, &len
);
692 append_grep_pat(grep_opt
, s
, len
, arg
, ++lno
, GREP_PATTERN
);
700 static int not_callback(const struct option
*opt
, const char *arg
, int unset
)
702 struct grep_opt
*grep_opt
= opt
->value
;
703 append_grep_pattern(grep_opt
, "--not", "command line", 0, GREP_NOT
);
707 static int and_callback(const struct option
*opt
, const char *arg
, int unset
)
709 struct grep_opt
*grep_opt
= opt
->value
;
710 append_grep_pattern(grep_opt
, "--and", "command line", 0, GREP_AND
);
714 static int open_callback(const struct option
*opt
, const char *arg
, int unset
)
716 struct grep_opt
*grep_opt
= opt
->value
;
717 append_grep_pattern(grep_opt
, "(", "command line", 0, GREP_OPEN_PAREN
);
721 static int close_callback(const struct option
*opt
, const char *arg
, int unset
)
723 struct grep_opt
*grep_opt
= opt
->value
;
724 append_grep_pattern(grep_opt
, ")", "command line", 0, GREP_CLOSE_PAREN
);
728 static int pattern_callback(const struct option
*opt
, const char *arg
,
731 struct grep_opt
*grep_opt
= opt
->value
;
732 append_grep_pattern(grep_opt
, arg
, "-e option", 0, GREP_PATTERN
);
736 static int help_callback(const struct option
*opt
, const char *arg
, int unset
)
741 int cmd_grep(int argc
, const char **argv
, const char *prefix
)
745 int seen_dashdash
= 0;
746 int external_grep_allowed__ignored
;
747 const char *show_in_pager
= NULL
, *default_pager
= "dummy";
749 struct object_array list
= OBJECT_ARRAY_INIT
;
750 const char **paths
= NULL
;
751 struct pathspec pathspec
;
752 struct string_list path_list
= STRING_LIST_INIT_NODUP
;
757 pattern_type_unspecified
= 0,
763 int pattern_type
= pattern_type_unspecified
;
765 struct option options
[] = {
766 OPT_BOOLEAN(0, "cached", &cached
,
767 "search in index instead of in the work tree"),
768 OPT_BOOLEAN(0, "index", &use_index
,
769 "--no-index finds in contents not managed by git"),
771 OPT_BOOLEAN('v', "invert-match", &opt
.invert
,
772 "show non-matching lines"),
773 OPT_BOOLEAN('i', "ignore-case", &opt
.ignore_case
,
774 "case insensitive matching"),
775 OPT_BOOLEAN('w', "word-regexp", &opt
.word_regexp
,
776 "match patterns only at word boundaries"),
777 OPT_SET_INT('a', "text", &opt
.binary
,
778 "process binary files as text", GREP_BINARY_TEXT
),
779 OPT_SET_INT('I', NULL
, &opt
.binary
,
780 "don't match patterns in binary files",
781 GREP_BINARY_NOMATCH
),
782 { OPTION_INTEGER
, 0, "max-depth", &opt
.max_depth
, "depth",
783 "descend at most <depth> levels", PARSE_OPT_NONEG
,
786 OPT_SET_INT('E', "extended-regexp", &pattern_type
,
787 "use extended POSIX regular expressions",
789 OPT_SET_INT('G', "basic-regexp", &pattern_type
,
790 "use basic POSIX regular expressions (default)",
792 OPT_SET_INT('F', "fixed-strings", &pattern_type
,
793 "interpret patterns as fixed strings",
795 OPT_SET_INT('P', "perl-regexp", &pattern_type
,
796 "use Perl-compatible regular expressions",
799 OPT_BOOLEAN('n', "line-number", &opt
.linenum
, "show line numbers"),
800 OPT_NEGBIT('h', NULL
, &opt
.pathname
, "don't show filenames", 1),
801 OPT_BIT('H', NULL
, &opt
.pathname
, "show filenames", 1),
802 OPT_NEGBIT(0, "full-name", &opt
.relative
,
803 "show filenames relative to top directory", 1),
804 OPT_BOOLEAN('l', "files-with-matches", &opt
.name_only
,
805 "show only filenames instead of matching lines"),
806 OPT_BOOLEAN(0, "name-only", &opt
.name_only
,
807 "synonym for --files-with-matches"),
808 OPT_BOOLEAN('L', "files-without-match",
809 &opt
.unmatch_name_only
,
810 "show only the names of files without match"),
811 OPT_BOOLEAN('z', "null", &opt
.null_following_name
,
812 "print NUL after filenames"),
813 OPT_BOOLEAN('c', "count", &opt
.count
,
814 "show the number of matches instead of matching lines"),
815 OPT__COLOR(&opt
.color
, "highlight matches"),
817 OPT_CALLBACK('C', NULL
, &opt
, "n",
818 "show <n> context lines before and after matches",
820 OPT_INTEGER('B', NULL
, &opt
.pre_context
,
821 "show <n> context lines before matches"),
822 OPT_INTEGER('A', NULL
, &opt
.post_context
,
823 "show <n> context lines after matches"),
824 OPT_NUMBER_CALLBACK(&opt
, "shortcut for -C NUM",
826 OPT_BOOLEAN('p', "show-function", &opt
.funcname
,
827 "show a line with the function name before matches"),
829 OPT_CALLBACK('f', NULL
, &opt
, "file",
830 "read patterns from file", file_callback
),
831 { OPTION_CALLBACK
, 'e', NULL
, &opt
, "pattern",
832 "match <pattern>", PARSE_OPT_NONEG
, pattern_callback
},
833 { OPTION_CALLBACK
, 0, "and", &opt
, NULL
,
834 "combine patterns specified with -e",
835 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, and_callback
},
836 OPT_BOOLEAN(0, "or", &dummy
, ""),
837 { OPTION_CALLBACK
, 0, "not", &opt
, NULL
, "",
838 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
, not_callback
},
839 { OPTION_CALLBACK
, '(', NULL
, &opt
, NULL
, "",
840 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
842 { OPTION_CALLBACK
, ')', NULL
, &opt
, NULL
, "",
843 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
| PARSE_OPT_NODASH
,
845 OPT__QUIET(&opt
.status_only
,
846 "indicate hit with exit status without output"),
847 OPT_BOOLEAN(0, "all-match", &opt
.all_match
,
848 "show only matches from files that match all patterns"),
850 { OPTION_STRING
, 'O', "open-files-in-pager", &show_in_pager
,
851 "pager", "show matching files in the pager",
852 PARSE_OPT_OPTARG
, NULL
, (intptr_t)default_pager
},
853 OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored
,
854 "allow calling of grep(1) (ignored by this build)"),
855 { OPTION_CALLBACK
, 0, "help-all", &options
, NULL
, "show usage",
856 PARSE_OPT_HIDDEN
| PARSE_OPT_NOARG
, help_callback
},
861 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
862 * to show usage information and exit.
864 if (argc
== 2 && !strcmp(argv
[1], "-h"))
865 usage_with_options(grep_usage
, options
);
867 memset(&opt
, 0, sizeof(opt
));
869 opt
.prefix_length
= (prefix
&& *prefix
) ? strlen(prefix
) : 0;
872 opt
.pattern_tail
= &opt
.pattern_list
;
873 opt
.header_tail
= &opt
.header_list
;
874 opt
.regflags
= REG_NEWLINE
;
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
);
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
);
903 switch (pattern_type
) {
904 case pattern_type_fixed
:
908 case pattern_type_bre
:
911 opt
.regflags
&= ~REG_EXTENDED
;
913 case pattern_type_ere
:
916 opt
.regflags
|= REG_EXTENDED
;
918 case pattern_type_pcre
:
926 if (use_index
&& !startup_info
->have_repository
)
927 /* die the same way as if we did it at the beginning */
928 setup_git_directory();
931 * skip a -- separator; we know it cannot be
932 * separating revisions from pathnames if
933 * we haven't even had any patterns yet
935 if (argc
> 0 && !opt
.pattern_list
&& !strcmp(argv
[0], "--")) {
940 /* First unrecognized non-option token */
941 if (argc
> 0 && !opt
.pattern_list
) {
942 append_grep_pattern(&opt
, argv
[0], "command line", 0,
948 if (show_in_pager
== default_pager
)
949 show_in_pager
= git_pager(1);
953 opt
.null_following_name
= 1;
954 opt
.output_priv
= &path_list
;
955 opt
.output
= append_path
;
956 string_list_append(&path_list
, show_in_pager
);
960 if (!opt
.pattern_list
)
961 die(_("no pattern given."));
962 if (!opt
.fixed
&& opt
.ignore_case
)
963 opt
.regflags
|= REG_ICASE
;
966 if (online_cpus() == 1 || !grep_threads_ok(&opt
))
970 if (opt
.pre_context
|| opt
.post_context
)
971 print_hunk_marks_between_files
= 1;
978 compile_grep_patterns(&opt
);
980 /* Check revs and then paths */
981 for (i
= 0; i
< argc
; i
++) {
982 const char *arg
= argv
[i
];
983 unsigned char sha1
[20];
985 if (!get_sha1(arg
, sha1
)) {
986 struct object
*object
= parse_object(sha1
);
988 die(_("bad object %s"), arg
);
989 add_object_array(object
, arg
, &list
);
992 if (!strcmp(arg
, "--")) {
999 /* The rest are paths */
1000 if (!seen_dashdash
) {
1002 for (j
= i
; j
< argc
; j
++)
1003 verify_filename(prefix
, argv
[j
]);
1006 paths
= get_pathspec(prefix
, argv
+ i
);
1007 init_pathspec(&pathspec
, paths
);
1008 pathspec
.max_depth
= opt
.max_depth
;
1009 pathspec
.recursive
= 1;
1011 if (show_in_pager
&& (cached
|| list
.nr
))
1012 die(_("--open-files-in-pager only works on the worktree"));
1014 if (show_in_pager
&& opt
.pattern_list
&& !opt
.pattern_list
->next
) {
1015 const char *pager
= path_list
.items
[0].string
;
1016 int len
= strlen(pager
);
1018 if (len
> 4 && is_dir_sep(pager
[len
- 5]))
1021 if (!strcmp("less", pager
) || !strcmp("vi", pager
)) {
1022 struct strbuf buf
= STRBUF_INIT
;
1023 strbuf_addf(&buf
, "+/%s%s",
1024 strcmp("less", pager
) ? "" : "*",
1025 opt
.pattern_list
->pattern
);
1026 string_list_append(&path_list
, buf
.buf
);
1027 strbuf_detach(&buf
, NULL
);
1037 die(_("--cached cannot be used with --no-index."));
1039 die(_("--no-index cannot be used with revs."));
1040 hit
= grep_directory(&opt
, &pathspec
);
1041 } else if (!list
.nr
) {
1045 hit
= grep_cache(&opt
, &pathspec
, cached
);
1048 die(_("both --cached and trees are given."));
1049 hit
= grep_objects(&opt
, &pathspec
, &list
);
1054 if (hit
&& show_in_pager
)
1055 run_pager(&opt
, prefix
);
1056 free_grep_patterns(&opt
);