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Commit | Line | Data |
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5010cb5f JH |
1 | /* |
2 | * Builtin "git grep" | |
3 | * | |
4 | * Copyright (c) 2006 Junio C Hamano | |
5 | */ | |
6 | #include "cache.h" | |
7 | #include "blob.h" | |
8 | #include "tree.h" | |
9 | #include "commit.h" | |
10 | #include "tag.h" | |
1362671f | 11 | #include "tree-walk.h" |
5010cb5f | 12 | #include "builtin.h" |
3e230fa1 | 13 | #include "parse-options.h" |
678e484b JS |
14 | #include "string-list.h" |
15 | #include "run-command.h" | |
60ecac98 | 16 | #include "userdiff.h" |
83b5d2f5 | 17 | #include "grep.h" |
493b7a08 | 18 | #include "quote.h" |
59332d13 | 19 | #include "dir.h" |
93749194 | 20 | #include "thread-utils.h" |
5b594f45 | 21 | |
3e230fa1 | 22 | static char const * const grep_usage[] = { |
62b4698e | 23 | "git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]", |
3e230fa1 RS |
24 | NULL |
25 | }; | |
26 | ||
5b594f45 FK |
27 | static int use_threads = 1; |
28 | ||
29 | #ifndef NO_PTHREADS | |
30 | #define THREADS 8 | |
31 | static pthread_t threads[THREADS]; | |
32 | ||
33 | static void *load_sha1(const unsigned char *sha1, unsigned long *size, | |
34 | const char *name); | |
35 | static void *load_file(const char *filename, size_t *sz); | |
36 | ||
37 | enum work_type {WORK_SHA1, WORK_FILE}; | |
38 | ||
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. | |
42 | */ | |
43 | struct work_item | |
44 | { | |
45 | enum work_type type; | |
46 | char *name; | |
47 | ||
48 | /* if type == WORK_SHA1, then 'identifier' is a SHA1, | |
49 | * otherwise type == WORK_FILE, and 'identifier' is a NUL | |
50 | * terminated filename. | |
51 | */ | |
52 | void *identifier; | |
53 | char done; | |
54 | struct strbuf out; | |
55 | }; | |
56 | ||
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. | |
60 | * | |
61 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
62 | * up by a consumer thread. | |
63 | * | |
64 | * The ranges are modulo TODO_SIZE. | |
65 | */ | |
66 | #define TODO_SIZE 128 | |
67 | static struct work_item todo[TODO_SIZE]; | |
68 | static int todo_start; | |
69 | static int todo_end; | |
70 | static int todo_done; | |
71 | ||
72 | /* Has all work items been added? */ | |
73 | static int all_work_added; | |
74 | ||
75 | /* This lock protects all the variables above. */ | |
76 | static pthread_mutex_t grep_mutex; | |
77 | ||
78 | /* Used to serialize calls to read_sha1_file. */ | |
79 | static pthread_mutex_t read_sha1_mutex; | |
80 | ||
81 | #define grep_lock() pthread_mutex_lock(&grep_mutex) | |
82 | #define grep_unlock() pthread_mutex_unlock(&grep_mutex) | |
83 | #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex) | |
84 | #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex) | |
85 | ||
86 | /* Signalled when a new work_item is added to todo. */ | |
87 | static pthread_cond_t cond_add; | |
88 | ||
89 | /* Signalled when the result from one work_item is written to | |
90 | * stdout. | |
91 | */ | |
92 | static pthread_cond_t cond_write; | |
93 | ||
94 | /* Signalled when we are finished with everything. */ | |
95 | static pthread_cond_t cond_result; | |
96 | ||
431d6e7b RS |
97 | static int print_hunk_marks_between_files; |
98 | static int printed_something; | |
99 | ||
5b594f45 FK |
100 | static void add_work(enum work_type type, char *name, void *id) |
101 | { | |
102 | grep_lock(); | |
103 | ||
104 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
105 | pthread_cond_wait(&cond_write, &grep_mutex); | |
106 | } | |
107 | ||
108 | todo[todo_end].type = type; | |
109 | todo[todo_end].name = name; | |
110 | todo[todo_end].identifier = id; | |
111 | todo[todo_end].done = 0; | |
112 | strbuf_reset(&todo[todo_end].out); | |
113 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
114 | ||
115 | pthread_cond_signal(&cond_add); | |
116 | grep_unlock(); | |
117 | } | |
118 | ||
119 | static struct work_item *get_work(void) | |
120 | { | |
121 | struct work_item *ret; | |
122 | ||
123 | grep_lock(); | |
124 | while (todo_start == todo_end && !all_work_added) { | |
125 | pthread_cond_wait(&cond_add, &grep_mutex); | |
126 | } | |
127 | ||
128 | if (todo_start == todo_end && all_work_added) { | |
129 | ret = NULL; | |
130 | } else { | |
131 | ret = &todo[todo_start]; | |
132 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
133 | } | |
134 | grep_unlock(); | |
135 | return ret; | |
136 | } | |
137 | ||
138 | static void grep_sha1_async(struct grep_opt *opt, char *name, | |
139 | const unsigned char *sha1) | |
140 | { | |
141 | unsigned char *s; | |
142 | s = xmalloc(20); | |
143 | memcpy(s, sha1, 20); | |
144 | add_work(WORK_SHA1, name, s); | |
145 | } | |
146 | ||
147 | static void grep_file_async(struct grep_opt *opt, char *name, | |
148 | const char *filename) | |
149 | { | |
150 | add_work(WORK_FILE, name, xstrdup(filename)); | |
151 | } | |
152 | ||
153 | static void work_done(struct work_item *w) | |
154 | { | |
155 | int old_done; | |
156 | ||
157 | grep_lock(); | |
158 | w->done = 1; | |
159 | old_done = todo_done; | |
160 | for(; todo[todo_done].done && todo_done != todo_start; | |
161 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
162 | w = &todo[todo_done]; | |
431d6e7b RS |
163 | if (w->out.len) { |
164 | if (print_hunk_marks_between_files && printed_something) | |
165 | write_or_die(1, "--\n", 3); | |
166 | write_or_die(1, w->out.buf, w->out.len); | |
167 | printed_something = 1; | |
168 | } | |
5b594f45 FK |
169 | free(w->name); |
170 | free(w->identifier); | |
171 | } | |
172 | ||
173 | if (old_done != todo_done) | |
174 | pthread_cond_signal(&cond_write); | |
175 | ||
176 | if (all_work_added && todo_done == todo_end) | |
177 | pthread_cond_signal(&cond_result); | |
178 | ||
179 | grep_unlock(); | |
180 | } | |
181 | ||
182 | static void *run(void *arg) | |
183 | { | |
184 | int hit = 0; | |
185 | struct grep_opt *opt = arg; | |
186 | ||
187 | while (1) { | |
188 | struct work_item *w = get_work(); | |
189 | if (!w) | |
190 | break; | |
191 | ||
192 | opt->output_priv = w; | |
193 | if (w->type == WORK_SHA1) { | |
194 | unsigned long sz; | |
195 | void* data = load_sha1(w->identifier, &sz, w->name); | |
196 | ||
197 | if (data) { | |
198 | hit |= grep_buffer(opt, w->name, data, sz); | |
199 | free(data); | |
200 | } | |
201 | } else if (w->type == WORK_FILE) { | |
202 | size_t sz; | |
203 | void* data = load_file(w->identifier, &sz); | |
204 | if (data) { | |
205 | hit |= grep_buffer(opt, w->name, data, sz); | |
206 | free(data); | |
207 | } | |
208 | } else { | |
209 | assert(0); | |
210 | } | |
211 | ||
212 | work_done(w); | |
213 | } | |
bfac23d9 DM |
214 | free_grep_patterns(arg); |
215 | free(arg); | |
5b594f45 FK |
216 | |
217 | return (void*) (intptr_t) hit; | |
218 | } | |
219 | ||
220 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
221 | { | |
222 | struct work_item *w = opt->output_priv; | |
223 | strbuf_add(&w->out, buf, size); | |
224 | } | |
225 | ||
226 | static void start_threads(struct grep_opt *opt) | |
227 | { | |
228 | int i; | |
229 | ||
230 | pthread_mutex_init(&grep_mutex, NULL); | |
231 | pthread_mutex_init(&read_sha1_mutex, NULL); | |
232 | pthread_cond_init(&cond_add, NULL); | |
233 | pthread_cond_init(&cond_write, NULL); | |
234 | pthread_cond_init(&cond_result, NULL); | |
235 | ||
236 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
237 | strbuf_init(&todo[i].out, 0); | |
238 | } | |
239 | ||
240 | for (i = 0; i < ARRAY_SIZE(threads); i++) { | |
241 | int err; | |
242 | struct grep_opt *o = grep_opt_dup(opt); | |
243 | o->output = strbuf_out; | |
244 | compile_grep_patterns(o); | |
245 | err = pthread_create(&threads[i], NULL, run, o); | |
246 | ||
247 | if (err) | |
248 | die("grep: failed to create thread: %s", | |
249 | strerror(err)); | |
250 | } | |
251 | } | |
252 | ||
253 | static int wait_all(void) | |
254 | { | |
255 | int hit = 0; | |
256 | int i; | |
257 | ||
258 | grep_lock(); | |
259 | all_work_added = 1; | |
260 | ||
261 | /* Wait until all work is done. */ | |
262 | while (todo_done != todo_end) | |
263 | pthread_cond_wait(&cond_result, &grep_mutex); | |
264 | ||
265 | /* Wake up all the consumer threads so they can see that there | |
266 | * is no more work to do. | |
267 | */ | |
268 | pthread_cond_broadcast(&cond_add); | |
269 | grep_unlock(); | |
270 | ||
271 | for (i = 0; i < ARRAY_SIZE(threads); i++) { | |
272 | void *h; | |
273 | pthread_join(threads[i], &h); | |
274 | hit |= (int) (intptr_t) h; | |
275 | } | |
276 | ||
277 | pthread_mutex_destroy(&grep_mutex); | |
278 | pthread_mutex_destroy(&read_sha1_mutex); | |
279 | pthread_cond_destroy(&cond_add); | |
280 | pthread_cond_destroy(&cond_write); | |
281 | pthread_cond_destroy(&cond_result); | |
282 | ||
283 | return hit; | |
284 | } | |
285 | #else /* !NO_PTHREADS */ | |
286 | #define read_sha1_lock() | |
287 | #define read_sha1_unlock() | |
288 | ||
289 | static int wait_all(void) | |
290 | { | |
291 | return 0; | |
292 | } | |
293 | #endif | |
294 | ||
7e8f59d5 RS |
295 | static int grep_config(const char *var, const char *value, void *cb) |
296 | { | |
297 | struct grep_opt *opt = cb; | |
55f638bd | 298 | char *color = NULL; |
7e8f59d5 | 299 | |
60ecac98 RS |
300 | switch (userdiff_config(var, value)) { |
301 | case 0: break; | |
302 | case -1: return -1; | |
303 | default: return 0; | |
304 | } | |
305 | ||
55f638bd | 306 | if (!strcmp(var, "color.grep")) |
7e8f59d5 | 307 | opt->color = git_config_colorbool(var, value, -1); |
00588bb5 ML |
308 | else if (!strcmp(var, "color.grep.context")) |
309 | color = opt->color_context; | |
55f638bd ML |
310 | else if (!strcmp(var, "color.grep.filename")) |
311 | color = opt->color_filename; | |
00588bb5 ML |
312 | else if (!strcmp(var, "color.grep.function")) |
313 | color = opt->color_function; | |
55f638bd ML |
314 | else if (!strcmp(var, "color.grep.linenumber")) |
315 | color = opt->color_lineno; | |
316 | else if (!strcmp(var, "color.grep.match")) | |
317 | color = opt->color_match; | |
00588bb5 ML |
318 | else if (!strcmp(var, "color.grep.selected")) |
319 | color = opt->color_selected; | |
55f638bd ML |
320 | else if (!strcmp(var, "color.grep.separator")) |
321 | color = opt->color_sep; | |
322 | else | |
323 | return git_color_default_config(var, value, cb); | |
324 | if (color) { | |
7e8f59d5 RS |
325 | if (!value) |
326 | return config_error_nonbool(var); | |
55f638bd | 327 | color_parse(value, var, color); |
7e8f59d5 | 328 | } |
55f638bd | 329 | return 0; |
7e8f59d5 RS |
330 | } |
331 | ||
a91f453f MK |
332 | /* |
333 | * Return non-zero if max_depth is negative or path has no more then max_depth | |
334 | * slashes. | |
335 | */ | |
336 | static int accept_subdir(const char *path, int max_depth) | |
337 | { | |
338 | if (max_depth < 0) | |
339 | return 1; | |
340 | ||
341 | while ((path = strchr(path, '/')) != NULL) { | |
342 | max_depth--; | |
343 | if (max_depth < 0) | |
344 | return 0; | |
345 | path++; | |
346 | } | |
347 | return 1; | |
348 | } | |
349 | ||
350 | /* | |
351 | * Return non-zero if name is a subdirectory of match and is not too deep. | |
352 | */ | |
353 | static int is_subdir(const char *name, int namelen, | |
354 | const char *match, int matchlen, int max_depth) | |
355 | { | |
356 | if (matchlen > namelen || strncmp(name, match, matchlen)) | |
357 | return 0; | |
358 | ||
359 | if (name[matchlen] == '\0') /* exact match */ | |
360 | return 1; | |
361 | ||
362 | if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/') | |
363 | return accept_subdir(name + matchlen + 1, max_depth); | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
e0eb889f JH |
368 | /* |
369 | * git grep pathspecs are somewhat different from diff-tree pathspecs; | |
370 | * pathname wildcards are allowed. | |
371 | */ | |
a91f453f | 372 | static int pathspec_matches(const char **paths, const char *name, int max_depth) |
5010cb5f | 373 | { |
e0eb889f | 374 | int namelen, i; |
1362671f | 375 | if (!paths || !*paths) |
a91f453f | 376 | return accept_subdir(name, max_depth); |
5010cb5f | 377 | namelen = strlen(name); |
1362671f JH |
378 | for (i = 0; paths[i]; i++) { |
379 | const char *match = paths[i]; | |
380 | int matchlen = strlen(match); | |
1e3d90e0 | 381 | const char *cp, *meta; |
e0eb889f | 382 | |
a91f453f | 383 | if (is_subdir(name, namelen, match, matchlen, max_depth)) |
e0eb889f JH |
384 | return 1; |
385 | if (!fnmatch(match, name, 0)) | |
386 | return 1; | |
387 | if (name[namelen-1] != '/') | |
5010cb5f | 388 | continue; |
e0eb889f | 389 | |
1e3d90e0 | 390 | /* We are being asked if the directory ("name") is worth |
e0eb889f JH |
391 | * descending into. |
392 | * | |
393 | * Find the longest leading directory name that does | |
394 | * not have metacharacter in the pathspec; the name | |
395 | * we are looking at must overlap with that directory. | |
5010cb5f | 396 | */ |
1e3d90e0 | 397 | for (cp = match, meta = NULL; cp - match < matchlen; cp++) { |
e0eb889f | 398 | char ch = *cp; |
1e3d90e0 JH |
399 | if (ch == '*' || ch == '[' || ch == '?') { |
400 | meta = cp; | |
5010cb5f | 401 | break; |
1e3d90e0 | 402 | } |
e0eb889f | 403 | } |
1e3d90e0 JH |
404 | if (!meta) |
405 | meta = cp; /* fully literal */ | |
406 | ||
407 | if (namelen <= meta - match) { | |
e0eb889f JH |
408 | /* Looking at "Documentation/" and |
409 | * the pattern says "Documentation/howto/", or | |
1e3d90e0 JH |
410 | * "Documentation/diff*.txt". The name we |
411 | * have should match prefix. | |
e0eb889f JH |
412 | */ |
413 | if (!memcmp(match, name, namelen)) | |
414 | return 1; | |
1e3d90e0 | 415 | continue; |
e0eb889f | 416 | } |
1e3d90e0 JH |
417 | |
418 | if (meta - match < namelen) { | |
e0eb889f | 419 | /* Looking at "Documentation/howto/" and |
1e3d90e0 JH |
420 | * the pattern says "Documentation/h*"; |
421 | * match up to "Do.../h"; this avoids descending | |
422 | * into "Documentation/technical/". | |
e0eb889f | 423 | */ |
1e3d90e0 | 424 | if (!memcmp(match, name, meta - match)) |
e0eb889f | 425 | return 1; |
1e3d90e0 | 426 | continue; |
e0eb889f | 427 | } |
5010cb5f JH |
428 | } |
429 | return 0; | |
430 | } | |
431 | ||
5f02d315 JH |
432 | static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) |
433 | { | |
434 | void *data; | |
435 | ||
436 | if (use_threads) { | |
437 | read_sha1_lock(); | |
438 | data = read_sha1_file(sha1, type, size); | |
439 | read_sha1_unlock(); | |
440 | } else { | |
441 | data = read_sha1_file(sha1, type, size); | |
442 | } | |
443 | return data; | |
444 | } | |
445 | ||
5b594f45 FK |
446 | static void *load_sha1(const unsigned char *sha1, unsigned long *size, |
447 | const char *name) | |
5010cb5f | 448 | { |
21666f1a | 449 | enum object_type type; |
5f02d315 | 450 | void *data = lock_and_read_sha1_file(sha1, &type, size); |
5b594f45 FK |
451 | |
452 | if (!data) | |
5010cb5f | 453 | error("'%s': unable to read %s", name, sha1_to_hex(sha1)); |
5b594f45 FK |
454 | |
455 | return data; | |
456 | } | |
457 | ||
458 | static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, | |
459 | const char *filename, int tree_name_len) | |
460 | { | |
461 | struct strbuf pathbuf = STRBUF_INIT; | |
462 | char *name; | |
463 | ||
0d042fec | 464 | if (opt->relative && opt->prefix_length) { |
5b594f45 FK |
465 | quote_path_relative(filename + tree_name_len, -1, &pathbuf, |
466 | opt->prefix); | |
467 | strbuf_insert(&pathbuf, 0, filename, tree_name_len); | |
468 | } else { | |
469 | strbuf_addstr(&pathbuf, filename); | |
470 | } | |
471 | ||
472 | name = strbuf_detach(&pathbuf, NULL); | |
473 | ||
474 | #ifndef NO_PTHREADS | |
475 | if (use_threads) { | |
476 | grep_sha1_async(opt, name, sha1); | |
477 | return 0; | |
478 | } else | |
479 | #endif | |
480 | { | |
481 | int hit; | |
482 | unsigned long sz; | |
483 | void *data = load_sha1(sha1, &sz, name); | |
484 | if (!data) | |
485 | hit = 0; | |
486 | else | |
487 | hit = grep_buffer(opt, name, data, sz); | |
488 | ||
489 | free(data); | |
490 | free(name); | |
491 | return hit; | |
0d042fec | 492 | } |
5010cb5f JH |
493 | } |
494 | ||
5b594f45 | 495 | static void *load_file(const char *filename, size_t *sz) |
5010cb5f JH |
496 | { |
497 | struct stat st; | |
5010cb5f | 498 | char *data; |
5b594f45 | 499 | int i; |
dc49cd76 | 500 | |
5010cb5f JH |
501 | if (lstat(filename, &st) < 0) { |
502 | err_ret: | |
503 | if (errno != ENOENT) | |
504 | error("'%s': %s", filename, strerror(errno)); | |
505 | return 0; | |
506 | } | |
5010cb5f JH |
507 | if (!S_ISREG(st.st_mode)) |
508 | return 0; | |
5b594f45 | 509 | *sz = xsize_t(st.st_size); |
5010cb5f JH |
510 | i = open(filename, O_RDONLY); |
511 | if (i < 0) | |
512 | goto err_ret; | |
5b594f45 FK |
513 | data = xmalloc(*sz + 1); |
514 | if (st.st_size != read_in_full(i, data, *sz)) { | |
5010cb5f JH |
515 | error("'%s': short read %s", filename, strerror(errno)); |
516 | close(i); | |
517 | free(data); | |
518 | return 0; | |
519 | } | |
520 | close(i); | |
5b594f45 FK |
521 | data[*sz] = 0; |
522 | return data; | |
523 | } | |
524 | ||
525 | static int grep_file(struct grep_opt *opt, const char *filename) | |
526 | { | |
527 | struct strbuf buf = STRBUF_INIT; | |
528 | char *name; | |
529 | ||
0d042fec | 530 | if (opt->relative && opt->prefix_length) |
5b594f45 FK |
531 | quote_path_relative(filename, -1, &buf, opt->prefix); |
532 | else | |
533 | strbuf_addstr(&buf, filename); | |
534 | name = strbuf_detach(&buf, NULL); | |
535 | ||
536 | #ifndef NO_PTHREADS | |
537 | if (use_threads) { | |
538 | grep_file_async(opt, name, filename); | |
539 | return 0; | |
540 | } else | |
541 | #endif | |
542 | { | |
543 | int hit; | |
544 | size_t sz; | |
545 | void *data = load_file(filename, &sz); | |
546 | if (!data) | |
547 | hit = 0; | |
548 | else | |
549 | hit = grep_buffer(opt, name, data, sz); | |
550 | ||
551 | free(data); | |
552 | free(name); | |
553 | return hit; | |
554 | } | |
5010cb5f JH |
555 | } |
556 | ||
678e484b JS |
557 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
558 | { | |
559 | struct string_list *path_list = opt->output_priv; | |
560 | ||
561 | if (len == 1 && *(const char *)data == '\0') | |
562 | return; | |
0c72cead | 563 | string_list_append(path_list, xstrndup(data, len)); |
678e484b JS |
564 | } |
565 | ||
566 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
567 | { | |
568 | struct string_list *path_list = opt->output_priv; | |
569 | const char **argv = xmalloc(sizeof(const char *) * (path_list->nr + 1)); | |
570 | int i, status; | |
571 | ||
572 | for (i = 0; i < path_list->nr; i++) | |
573 | argv[i] = path_list->items[i].string; | |
574 | argv[path_list->nr] = NULL; | |
575 | ||
576 | if (prefix && chdir(prefix)) | |
577 | die("Failed to chdir: %s", prefix); | |
578 | status = run_command_v_opt(argv, RUN_USING_SHELL); | |
579 | if (status) | |
580 | exit(status); | |
581 | free(argv); | |
582 | } | |
583 | ||
f34bbc15 | 584 | static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached) |
5010cb5f JH |
585 | { |
586 | int hit = 0; | |
587 | int nr; | |
588 | read_cache(); | |
589 | ||
590 | for (nr = 0; nr < active_nr; nr++) { | |
591 | struct cache_entry *ce = active_cache[nr]; | |
7a51ed66 | 592 | if (!S_ISREG(ce->ce_mode)) |
5010cb5f | 593 | continue; |
2ed2437a | 594 | if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL)) |
5010cb5f | 595 | continue; |
57d43466 NTND |
596 | /* |
597 | * If CE_VALID is on, we assume worktree file and its cache entry | |
598 | * are identical, even if worktree file has been modified, so use | |
599 | * cache version instead | |
600 | */ | |
b4d1690d | 601 | if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) { |
36f2587f JH |
602 | if (ce_stage(ce)) |
603 | continue; | |
0d042fec | 604 | hit |= grep_sha1(opt, ce->sha1, ce->name, 0); |
36f2587f | 605 | } |
5010cb5f JH |
606 | else |
607 | hit |= grep_file(opt, ce->name); | |
36f2587f JH |
608 | if (ce_stage(ce)) { |
609 | do { | |
610 | nr++; | |
611 | } while (nr < active_nr && | |
612 | !strcmp(ce->name, active_cache[nr]->name)); | |
613 | nr--; /* compensate for loop control */ | |
614 | } | |
c8610a2e JH |
615 | if (hit && opt->status_only) |
616 | break; | |
5010cb5f JH |
617 | } |
618 | return hit; | |
619 | } | |
620 | ||
f34bbc15 | 621 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, |
e5e062b6 | 622 | struct tree_desc *tree, struct strbuf *base, int tn_len) |
5010cb5f | 623 | { |
5010cb5f | 624 | int hit = 0; |
4c068a98 | 625 | struct name_entry entry; |
e5e062b6 | 626 | int old_baselen = base->len; |
5010cb5f | 627 | |
4c068a98 | 628 | while (tree_entry(tree, &entry)) { |
620e2bb9 | 629 | int te_len = tree_entry_len(entry.path, entry.sha1); |
e5e062b6 NTND |
630 | |
631 | strbuf_add(base, entry.path, te_len); | |
5010cb5f | 632 | |
4c068a98 | 633 | if (S_ISDIR(entry.mode)) |
e0eb889f JH |
634 | /* Match "abc/" against pathspec to |
635 | * decide if we want to descend into "abc" | |
636 | * directory. | |
637 | */ | |
e5e062b6 | 638 | strbuf_addch(base, '/'); |
e0eb889f | 639 | |
e5e062b6 | 640 | if (!pathspec_matches(pathspec->raw, base->buf + tn_len, opt->max_depth)) |
5010cb5f | 641 | ; |
e5e062b6 NTND |
642 | else if (S_ISREG(entry.mode)) { |
643 | hit |= grep_sha1(opt, entry.sha1, base->buf, tn_len); | |
644 | } | |
4c068a98 | 645 | else if (S_ISDIR(entry.mode)) { |
21666f1a | 646 | enum object_type type; |
5010cb5f JH |
647 | struct tree_desc sub; |
648 | void *data; | |
6fda5e51 LT |
649 | unsigned long size; |
650 | ||
5f02d315 | 651 | data = lock_and_read_sha1_file(entry.sha1, &type, &size); |
5010cb5f JH |
652 | if (!data) |
653 | die("unable to read tree (%s)", | |
4c068a98 | 654 | sha1_to_hex(entry.sha1)); |
6fda5e51 | 655 | init_tree_desc(&sub, data, size); |
e5e062b6 | 656 | hit |= grep_tree(opt, pathspec, &sub, base, tn_len); |
5010cb5f JH |
657 | free(data); |
658 | } | |
e5e062b6 NTND |
659 | strbuf_setlen(base, old_baselen); |
660 | ||
c8610a2e JH |
661 | if (hit && opt->status_only) |
662 | break; | |
5010cb5f JH |
663 | } |
664 | return hit; | |
665 | } | |
666 | ||
f34bbc15 | 667 | static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, |
5010cb5f JH |
668 | struct object *obj, const char *name) |
669 | { | |
1974632c | 670 | if (obj->type == OBJ_BLOB) |
0d042fec | 671 | return grep_sha1(opt, obj->sha1, name, 0); |
1974632c | 672 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
673 | struct tree_desc tree; |
674 | void *data; | |
6fda5e51 | 675 | unsigned long size; |
e5e062b6 NTND |
676 | struct strbuf base; |
677 | int hit, len; | |
678 | ||
5010cb5f | 679 | data = read_object_with_reference(obj->sha1, tree_type, |
6fda5e51 | 680 | &size, NULL); |
5010cb5f JH |
681 | if (!data) |
682 | die("unable to read tree (%s)", sha1_to_hex(obj->sha1)); | |
e5e062b6 NTND |
683 | |
684 | len = name ? strlen(name) : 0; | |
685 | strbuf_init(&base, PATH_MAX + len + 1); | |
686 | if (len) { | |
687 | strbuf_add(&base, name, len); | |
688 | strbuf_addch(&base, ':'); | |
689 | } | |
6fda5e51 | 690 | init_tree_desc(&tree, data, size); |
e5e062b6 NTND |
691 | hit = grep_tree(opt, pathspec, &tree, &base, base.len); |
692 | strbuf_release(&base); | |
5010cb5f JH |
693 | free(data); |
694 | return hit; | |
695 | } | |
885a86ab | 696 | die("unable to grep from object of type %s", typename(obj->type)); |
5010cb5f JH |
697 | } |
698 | ||
f34bbc15 | 699 | static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, |
30d00c39 JN |
700 | const struct object_array *list) |
701 | { | |
702 | unsigned int i; | |
703 | int hit = 0; | |
704 | const unsigned int nr = list->nr; | |
705 | ||
706 | for (i = 0; i < nr; i++) { | |
707 | struct object *real_obj; | |
708 | real_obj = deref_tag(list->objects[i].item, NULL, 0); | |
f34bbc15 | 709 | if (grep_object(opt, pathspec, real_obj, list->objects[i].name)) { |
30d00c39 JN |
710 | hit = 1; |
711 | if (opt->status_only) | |
712 | break; | |
713 | } | |
714 | } | |
715 | return hit; | |
716 | } | |
717 | ||
f34bbc15 | 718 | static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec) |
59332d13 JH |
719 | { |
720 | struct dir_struct dir; | |
721 | int i, hit = 0; | |
722 | ||
723 | memset(&dir, 0, sizeof(dir)); | |
724 | setup_standard_excludes(&dir); | |
725 | ||
f34bbc15 | 726 | fill_directory(&dir, pathspec->raw); |
59332d13 JH |
727 | for (i = 0; i < dir.nr; i++) { |
728 | hit |= grep_file(opt, dir.entries[i]->name); | |
729 | if (hit && opt->status_only) | |
730 | break; | |
731 | } | |
59332d13 JH |
732 | return hit; |
733 | } | |
734 | ||
ff3c7f9a RS |
735 | static int context_callback(const struct option *opt, const char *arg, |
736 | int unset) | |
3e230fa1 RS |
737 | { |
738 | struct grep_opt *grep_opt = opt->value; | |
739 | int value; | |
740 | const char *endp; | |
741 | ||
742 | if (unset) { | |
743 | grep_opt->pre_context = grep_opt->post_context = 0; | |
744 | return 0; | |
745 | } | |
746 | value = strtol(arg, (char **)&endp, 10); | |
747 | if (*endp) { | |
748 | return error("switch `%c' expects a numerical value", | |
749 | opt->short_name); | |
750 | } | |
751 | grep_opt->pre_context = grep_opt->post_context = value; | |
752 | return 0; | |
753 | } | |
754 | ||
ff3c7f9a | 755 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
756 | { |
757 | struct grep_opt *grep_opt = opt->value; | |
758 | FILE *patterns; | |
759 | int lno = 0; | |
cfe370c6 | 760 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 RS |
761 | |
762 | patterns = fopen(arg, "r"); | |
763 | if (!patterns) | |
d824cbba | 764 | die_errno("cannot open '%s'", arg); |
3e230fa1 | 765 | while (strbuf_getline(&sb, patterns, '\n') == 0) { |
ed40a095 RS |
766 | char *s; |
767 | size_t len; | |
768 | ||
3e230fa1 RS |
769 | /* ignore empty line like grep does */ |
770 | if (sb.len == 0) | |
771 | continue; | |
ed40a095 RS |
772 | |
773 | s = strbuf_detach(&sb, &len); | |
774 | append_grep_pat(grep_opt, s, len, arg, ++lno, GREP_PATTERN); | |
3e230fa1 RS |
775 | } |
776 | fclose(patterns); | |
777 | strbuf_release(&sb); | |
778 | return 0; | |
779 | } | |
780 | ||
ff3c7f9a | 781 | static int not_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
782 | { |
783 | struct grep_opt *grep_opt = opt->value; | |
784 | append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT); | |
785 | return 0; | |
786 | } | |
787 | ||
ff3c7f9a | 788 | static int and_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
789 | { |
790 | struct grep_opt *grep_opt = opt->value; | |
791 | append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND); | |
792 | return 0; | |
793 | } | |
794 | ||
ff3c7f9a | 795 | static int open_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
796 | { |
797 | struct grep_opt *grep_opt = opt->value; | |
798 | append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN); | |
799 | return 0; | |
800 | } | |
801 | ||
ff3c7f9a | 802 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
803 | { |
804 | struct grep_opt *grep_opt = opt->value; | |
805 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); | |
806 | return 0; | |
807 | } | |
808 | ||
ff3c7f9a RS |
809 | static int pattern_callback(const struct option *opt, const char *arg, |
810 | int unset) | |
3e230fa1 RS |
811 | { |
812 | struct grep_opt *grep_opt = opt->value; | |
813 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); | |
814 | return 0; | |
815 | } | |
5010cb5f | 816 | |
ff3c7f9a | 817 | static int help_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
818 | { |
819 | return -1; | |
820 | } | |
088b084b | 821 | |
a633fca0 | 822 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 823 | { |
5010cb5f | 824 | int hit = 0; |
5010cb5f | 825 | int cached = 0; |
5acd64ed | 826 | int seen_dashdash = 0; |
bbc09c22 | 827 | int external_grep_allowed__ignored; |
0af88c15 | 828 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 829 | struct grep_opt opt; |
3cd47459 | 830 | struct object_array list = OBJECT_ARRAY_INIT; |
1362671f | 831 | const char **paths = NULL; |
f34bbc15 | 832 | struct pathspec pathspec; |
183113a5 | 833 | struct string_list path_list = STRING_LIST_INIT_NODUP; |
5acd64ed | 834 | int i; |
3e230fa1 | 835 | int dummy; |
ff38d1a9 | 836 | int use_index = 1; |
3e230fa1 RS |
837 | struct option options[] = { |
838 | OPT_BOOLEAN(0, "cached", &cached, | |
839 | "search in index instead of in the work tree"), | |
59332d13 JH |
840 | OPT_BOOLEAN(0, "index", &use_index, |
841 | "--no-index finds in contents not managed by git"), | |
3e230fa1 RS |
842 | OPT_GROUP(""), |
843 | OPT_BOOLEAN('v', "invert-match", &opt.invert, | |
844 | "show non-matching lines"), | |
5183bf67 BC |
845 | OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case, |
846 | "case insensitive matching"), | |
3e230fa1 RS |
847 | OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp, |
848 | "match patterns only at word boundaries"), | |
849 | OPT_SET_INT('a', "text", &opt.binary, | |
850 | "process binary files as text", GREP_BINARY_TEXT), | |
851 | OPT_SET_INT('I', NULL, &opt.binary, | |
852 | "don't match patterns in binary files", | |
853 | GREP_BINARY_NOMATCH), | |
a91f453f MK |
854 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth", |
855 | "descend at most <depth> levels", PARSE_OPT_NONEG, | |
856 | NULL, 1 }, | |
3e230fa1 RS |
857 | OPT_GROUP(""), |
858 | OPT_BIT('E', "extended-regexp", &opt.regflags, | |
859 | "use extended POSIX regular expressions", REG_EXTENDED), | |
860 | OPT_NEGBIT('G', "basic-regexp", &opt.regflags, | |
861 | "use basic POSIX regular expressions (default)", | |
862 | REG_EXTENDED), | |
863 | OPT_BOOLEAN('F', "fixed-strings", &opt.fixed, | |
864 | "interpret patterns as fixed strings"), | |
865 | OPT_GROUP(""), | |
866 | OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"), | |
867 | OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1), | |
868 | OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1), | |
869 | OPT_NEGBIT(0, "full-name", &opt.relative, | |
870 | "show filenames relative to top directory", 1), | |
871 | OPT_BOOLEAN('l', "files-with-matches", &opt.name_only, | |
872 | "show only filenames instead of matching lines"), | |
873 | OPT_BOOLEAN(0, "name-only", &opt.name_only, | |
874 | "synonym for --files-with-matches"), | |
875 | OPT_BOOLEAN('L', "files-without-match", | |
876 | &opt.unmatch_name_only, | |
877 | "show only the names of files without match"), | |
878 | OPT_BOOLEAN('z', "null", &opt.null_following_name, | |
879 | "print NUL after filenames"), | |
880 | OPT_BOOLEAN('c', "count", &opt.count, | |
881 | "show the number of matches instead of matching lines"), | |
73e9da01 | 882 | OPT__COLOR(&opt.color, "highlight matches"), |
3e230fa1 RS |
883 | OPT_GROUP(""), |
884 | OPT_CALLBACK('C', NULL, &opt, "n", | |
885 | "show <n> context lines before and after matches", | |
886 | context_callback), | |
887 | OPT_INTEGER('B', NULL, &opt.pre_context, | |
888 | "show <n> context lines before matches"), | |
889 | OPT_INTEGER('A', NULL, &opt.post_context, | |
890 | "show <n> context lines after matches"), | |
891 | OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM", | |
892 | context_callback), | |
2944e4e6 RS |
893 | OPT_BOOLEAN('p', "show-function", &opt.funcname, |
894 | "show a line with the function name before matches"), | |
3e230fa1 RS |
895 | OPT_GROUP(""), |
896 | OPT_CALLBACK('f', NULL, &opt, "file", | |
897 | "read patterns from file", file_callback), | |
898 | { OPTION_CALLBACK, 'e', NULL, &opt, "pattern", | |
899 | "match <pattern>", PARSE_OPT_NONEG, pattern_callback }, | |
900 | { OPTION_CALLBACK, 0, "and", &opt, NULL, | |
901 | "combine patterns specified with -e", | |
902 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, | |
903 | OPT_BOOLEAN(0, "or", &dummy, ""), | |
904 | { OPTION_CALLBACK, 0, "not", &opt, NULL, "", | |
905 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, | |
906 | { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", | |
907 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
908 | open_callback }, | |
909 | { OPTION_CALLBACK, ')', NULL, &opt, NULL, "", | |
910 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
911 | close_callback }, | |
d52ee6e6 RS |
912 | OPT__QUIET(&opt.status_only, |
913 | "indicate hit with exit status without output"), | |
3e230fa1 RS |
914 | OPT_BOOLEAN(0, "all-match", &opt.all_match, |
915 | "show only matches from files that match all patterns"), | |
916 | OPT_GROUP(""), | |
0af88c15 JS |
917 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
918 | "pager", "show matching files in the pager", | |
919 | PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, | |
bbc09c22 JH |
920 | OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored, |
921 | "allow calling of grep(1) (ignored by this build)"), | |
3e230fa1 RS |
922 | { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage", |
923 | PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback }, | |
924 | OPT_END() | |
925 | }; | |
5010cb5f | 926 | |
9c855c31 JN |
927 | /* |
928 | * 'git grep -h', unlike 'git grep -h <pattern>', is a request | |
929 | * to show usage information and exit. | |
930 | */ | |
931 | if (argc == 2 && !strcmp(argv[1], "-h")) | |
932 | usage_with_options(grep_usage, options); | |
933 | ||
5010cb5f | 934 | memset(&opt, 0, sizeof(opt)); |
493b7a08 | 935 | opt.prefix = prefix; |
0d042fec JH |
936 | opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0; |
937 | opt.relative = 1; | |
7977f0ea | 938 | opt.pathname = 1; |
f9b9faf6 | 939 | opt.pattern_tail = &opt.pattern_list; |
80235ba7 | 940 | opt.header_tail = &opt.header_list; |
5010cb5f | 941 | opt.regflags = REG_NEWLINE; |
a91f453f | 942 | opt.max_depth = -1; |
5010cb5f | 943 | |
00588bb5 | 944 | strcpy(opt.color_context, ""); |
55f638bd | 945 | strcpy(opt.color_filename, ""); |
00588bb5 | 946 | strcpy(opt.color_function, ""); |
55f638bd | 947 | strcpy(opt.color_lineno, ""); |
758df17a | 948 | strcpy(opt.color_match, GIT_COLOR_BOLD_RED); |
00588bb5 | 949 | strcpy(opt.color_selected, ""); |
55f638bd | 950 | strcpy(opt.color_sep, GIT_COLOR_CYAN); |
7e8f59d5 RS |
951 | opt.color = -1; |
952 | git_config(grep_config, &opt); | |
953 | if (opt.color == -1) | |
954 | opt.color = git_use_color_default; | |
955 | ||
5010cb5f | 956 | /* |
5acd64ed JH |
957 | * If there is no -- then the paths must exist in the working |
958 | * tree. If there is no explicit pattern specified with -e or | |
959 | * -f, we take the first unrecognized non option to be the | |
960 | * pattern, but then what follows it must be zero or more | |
961 | * valid refs up to the -- (if exists), and then existing | |
962 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 963 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 964 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 965 | */ |
37782920 | 966 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 RS |
967 | PARSE_OPT_KEEP_DASHDASH | |
968 | PARSE_OPT_STOP_AT_NON_OPTION | | |
969 | PARSE_OPT_NO_INTERNAL_HELP); | |
970 | ||
ff38d1a9 | 971 | if (use_index && !startup_info->have_repository) |
59332d13 JH |
972 | /* die the same way as if we did it at the beginning */ |
973 | setup_git_directory(); | |
974 | ||
1123c67c JK |
975 | /* |
976 | * skip a -- separator; we know it cannot be | |
977 | * separating revisions from pathnames if | |
978 | * we haven't even had any patterns yet | |
979 | */ | |
980 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
981 | argv++; | |
982 | argc--; | |
983 | } | |
984 | ||
3e230fa1 RS |
985 | /* First unrecognized non-option token */ |
986 | if (argc > 0 && !opt.pattern_list) { | |
987 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
988 | GREP_PATTERN); | |
989 | argv++; | |
990 | argc--; | |
5010cb5f | 991 | } |
5acd64ed | 992 | |
0af88c15 JS |
993 | if (show_in_pager == default_pager) |
994 | show_in_pager = git_pager(1); | |
678e484b | 995 | if (show_in_pager) { |
e7b082a4 | 996 | opt.color = 0; |
0af88c15 JS |
997 | opt.name_only = 1; |
998 | opt.null_following_name = 1; | |
999 | opt.output_priv = &path_list; | |
1000 | opt.output = append_path; | |
0c72cead | 1001 | string_list_append(&path_list, show_in_pager); |
0af88c15 | 1002 | use_threads = 0; |
678e484b JS |
1003 | } |
1004 | ||
f9b9faf6 | 1005 | if (!opt.pattern_list) |
5010cb5f | 1006 | die("no pattern given."); |
5183bf67 BC |
1007 | if (!opt.fixed && opt.ignore_case) |
1008 | opt.regflags |= REG_ICASE; | |
07ea91d8 JH |
1009 | if ((opt.regflags != REG_NEWLINE) && opt.fixed) |
1010 | die("cannot mix --fixed-strings and regexp"); | |
5b594f45 FK |
1011 | |
1012 | #ifndef NO_PTHREADS | |
1013 | if (online_cpus() == 1 || !grep_threads_ok(&opt)) | |
1014 | use_threads = 0; | |
1015 | ||
431d6e7b RS |
1016 | if (use_threads) { |
1017 | if (opt.pre_context || opt.post_context) | |
1018 | print_hunk_marks_between_files = 1; | |
5b594f45 | 1019 | start_threads(&opt); |
431d6e7b | 1020 | } |
5b594f45 FK |
1021 | #else |
1022 | use_threads = 0; | |
1023 | #endif | |
1024 | ||
83b5d2f5 | 1025 | compile_grep_patterns(&opt); |
5acd64ed JH |
1026 | |
1027 | /* Check revs and then paths */ | |
3e230fa1 | 1028 | for (i = 0; i < argc; i++) { |
5acd64ed | 1029 | const char *arg = argv[i]; |
1362671f | 1030 | unsigned char sha1[20]; |
5acd64ed JH |
1031 | /* Is it a rev? */ |
1032 | if (!get_sha1(arg, sha1)) { | |
1033 | struct object *object = parse_object(sha1); | |
5acd64ed JH |
1034 | if (!object) |
1035 | die("bad object %s", arg); | |
1f1e895f | 1036 | add_object_array(object, arg, &list); |
5acd64ed JH |
1037 | continue; |
1038 | } | |
1039 | if (!strcmp(arg, "--")) { | |
1040 | i++; | |
1041 | seen_dashdash = 1; | |
1042 | } | |
1043 | break; | |
1362671f | 1044 | } |
5acd64ed JH |
1045 | |
1046 | /* The rest are paths */ | |
1047 | if (!seen_dashdash) { | |
1048 | int j; | |
c39c4f47 | 1049 | for (j = i; j < argc; j++) |
5acd64ed JH |
1050 | verify_filename(prefix, argv[j]); |
1051 | } | |
1052 | ||
493b7a08 | 1053 | if (i < argc) |
5acd64ed | 1054 | paths = get_pathspec(prefix, argv + i); |
1362671f JH |
1055 | else if (prefix) { |
1056 | paths = xcalloc(2, sizeof(const char *)); | |
1057 | paths[0] = prefix; | |
1058 | paths[1] = NULL; | |
1059 | } | |
f34bbc15 | 1060 | init_pathspec(&pathspec, paths); |
5010cb5f | 1061 | |
678e484b JS |
1062 | if (show_in_pager && (cached || list.nr)) |
1063 | die("--open-files-in-pager only works on the worktree"); | |
1064 | ||
1065 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1066 | const char *pager = path_list.items[0].string; | |
1067 | int len = strlen(pager); | |
1068 | ||
1069 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1070 | pager += len - 4; | |
1071 | ||
1072 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { | |
1073 | struct strbuf buf = STRBUF_INIT; | |
1074 | strbuf_addf(&buf, "+/%s%s", | |
1075 | strcmp("less", pager) ? "" : "*", | |
1076 | opt.pattern_list->pattern); | |
0c72cead | 1077 | string_list_append(&path_list, buf.buf); |
678e484b JS |
1078 | strbuf_detach(&buf, NULL); |
1079 | } | |
1080 | } | |
1081 | ||
1082 | if (!show_in_pager) | |
1083 | setup_pager(); | |
1084 | ||
1085 | ||
59332d13 | 1086 | if (!use_index) { |
59332d13 JH |
1087 | if (cached) |
1088 | die("--cached cannot be used with --no-index."); | |
1089 | if (list.nr) | |
1090 | die("--no-index cannot be used with revs."); | |
f34bbc15 | 1091 | hit = grep_directory(&opt, &pathspec); |
685359cf | 1092 | } else if (!list.nr) { |
6577f542 NTND |
1093 | if (!cached) |
1094 | setup_work_tree(); | |
5b594f45 | 1095 | |
f34bbc15 | 1096 | hit = grep_cache(&opt, &pathspec, cached); |
685359cf JS |
1097 | } else { |
1098 | if (cached) | |
1099 | die("both --cached and trees are given."); | |
f34bbc15 | 1100 | hit = grep_objects(&opt, &pathspec, &list); |
5010cb5f | 1101 | } |
5b594f45 FK |
1102 | |
1103 | if (use_threads) | |
1104 | hit |= wait_all(); | |
678e484b JS |
1105 | if (hit && show_in_pager) |
1106 | run_pager(&opt, prefix); | |
b48fb5b6 | 1107 | free_grep_patterns(&opt); |
5010cb5f JH |
1108 | return !hit; |
1109 | } |