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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" |
5f7c643a | 20 | |
5b594f45 | 21 | #ifndef NO_PTHREADS |
5b594f45 | 22 | #include <pthread.h> |
93749194 | 23 | #include "thread-utils.h" |
5b594f45 FK |
24 | #endif |
25 | ||
3e230fa1 RS |
26 | static char const * const grep_usage[] = { |
27 | "git grep [options] [-e] <pattern> [<rev>...] [[--] path...]", | |
28 | NULL | |
29 | }; | |
30 | ||
5b594f45 FK |
31 | static int use_threads = 1; |
32 | ||
33 | #ifndef NO_PTHREADS | |
34 | #define THREADS 8 | |
35 | static pthread_t threads[THREADS]; | |
36 | ||
37 | static void *load_sha1(const unsigned char *sha1, unsigned long *size, | |
38 | const char *name); | |
39 | static void *load_file(const char *filename, size_t *sz); | |
40 | ||
41 | enum work_type {WORK_SHA1, WORK_FILE}; | |
42 | ||
43 | /* We use one producer thread and THREADS consumer | |
44 | * threads. The producer adds struct work_items to 'todo' and the | |
45 | * consumers pick work items from the same array. | |
46 | */ | |
47 | struct work_item | |
48 | { | |
49 | enum work_type type; | |
50 | char *name; | |
51 | ||
52 | /* if type == WORK_SHA1, then 'identifier' is a SHA1, | |
53 | * otherwise type == WORK_FILE, and 'identifier' is a NUL | |
54 | * terminated filename. | |
55 | */ | |
56 | void *identifier; | |
57 | char done; | |
58 | struct strbuf out; | |
59 | }; | |
60 | ||
61 | /* In the range [todo_done, todo_start) in 'todo' we have work_items | |
62 | * that have been or are processed by a consumer thread. We haven't | |
63 | * written the result for these to stdout yet. | |
64 | * | |
65 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
66 | * up by a consumer thread. | |
67 | * | |
68 | * The ranges are modulo TODO_SIZE. | |
69 | */ | |
70 | #define TODO_SIZE 128 | |
71 | static struct work_item todo[TODO_SIZE]; | |
72 | static int todo_start; | |
73 | static int todo_end; | |
74 | static int todo_done; | |
75 | ||
76 | /* Has all work items been added? */ | |
77 | static int all_work_added; | |
78 | ||
79 | /* This lock protects all the variables above. */ | |
80 | static pthread_mutex_t grep_mutex; | |
81 | ||
82 | /* Used to serialize calls to read_sha1_file. */ | |
83 | static pthread_mutex_t read_sha1_mutex; | |
84 | ||
85 | #define grep_lock() pthread_mutex_lock(&grep_mutex) | |
86 | #define grep_unlock() pthread_mutex_unlock(&grep_mutex) | |
87 | #define read_sha1_lock() pthread_mutex_lock(&read_sha1_mutex) | |
88 | #define read_sha1_unlock() pthread_mutex_unlock(&read_sha1_mutex) | |
89 | ||
90 | /* Signalled when a new work_item is added to todo. */ | |
91 | static pthread_cond_t cond_add; | |
92 | ||
93 | /* Signalled when the result from one work_item is written to | |
94 | * stdout. | |
95 | */ | |
96 | static pthread_cond_t cond_write; | |
97 | ||
98 | /* Signalled when we are finished with everything. */ | |
99 | static pthread_cond_t cond_result; | |
100 | ||
431d6e7b RS |
101 | static int print_hunk_marks_between_files; |
102 | static int printed_something; | |
103 | ||
5b594f45 FK |
104 | static void add_work(enum work_type type, char *name, void *id) |
105 | { | |
106 | grep_lock(); | |
107 | ||
108 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
109 | pthread_cond_wait(&cond_write, &grep_mutex); | |
110 | } | |
111 | ||
112 | todo[todo_end].type = type; | |
113 | todo[todo_end].name = name; | |
114 | todo[todo_end].identifier = id; | |
115 | todo[todo_end].done = 0; | |
116 | strbuf_reset(&todo[todo_end].out); | |
117 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
118 | ||
119 | pthread_cond_signal(&cond_add); | |
120 | grep_unlock(); | |
121 | } | |
122 | ||
123 | static struct work_item *get_work(void) | |
124 | { | |
125 | struct work_item *ret; | |
126 | ||
127 | grep_lock(); | |
128 | while (todo_start == todo_end && !all_work_added) { | |
129 | pthread_cond_wait(&cond_add, &grep_mutex); | |
130 | } | |
131 | ||
132 | if (todo_start == todo_end && all_work_added) { | |
133 | ret = NULL; | |
134 | } else { | |
135 | ret = &todo[todo_start]; | |
136 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
137 | } | |
138 | grep_unlock(); | |
139 | return ret; | |
140 | } | |
141 | ||
142 | static void grep_sha1_async(struct grep_opt *opt, char *name, | |
143 | const unsigned char *sha1) | |
144 | { | |
145 | unsigned char *s; | |
146 | s = xmalloc(20); | |
147 | memcpy(s, sha1, 20); | |
148 | add_work(WORK_SHA1, name, s); | |
149 | } | |
150 | ||
151 | static void grep_file_async(struct grep_opt *opt, char *name, | |
152 | const char *filename) | |
153 | { | |
154 | add_work(WORK_FILE, name, xstrdup(filename)); | |
155 | } | |
156 | ||
157 | static void work_done(struct work_item *w) | |
158 | { | |
159 | int old_done; | |
160 | ||
161 | grep_lock(); | |
162 | w->done = 1; | |
163 | old_done = todo_done; | |
164 | for(; todo[todo_done].done && todo_done != todo_start; | |
165 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
166 | w = &todo[todo_done]; | |
431d6e7b RS |
167 | if (w->out.len) { |
168 | if (print_hunk_marks_between_files && printed_something) | |
169 | write_or_die(1, "--\n", 3); | |
170 | write_or_die(1, w->out.buf, w->out.len); | |
171 | printed_something = 1; | |
172 | } | |
5b594f45 FK |
173 | free(w->name); |
174 | free(w->identifier); | |
175 | } | |
176 | ||
177 | if (old_done != todo_done) | |
178 | pthread_cond_signal(&cond_write); | |
179 | ||
180 | if (all_work_added && todo_done == todo_end) | |
181 | pthread_cond_signal(&cond_result); | |
182 | ||
183 | grep_unlock(); | |
184 | } | |
185 | ||
186 | static void *run(void *arg) | |
187 | { | |
188 | int hit = 0; | |
189 | struct grep_opt *opt = arg; | |
190 | ||
191 | while (1) { | |
192 | struct work_item *w = get_work(); | |
193 | if (!w) | |
194 | break; | |
195 | ||
196 | opt->output_priv = w; | |
197 | if (w->type == WORK_SHA1) { | |
198 | unsigned long sz; | |
199 | void* data = load_sha1(w->identifier, &sz, w->name); | |
200 | ||
201 | if (data) { | |
202 | hit |= grep_buffer(opt, w->name, data, sz); | |
203 | free(data); | |
204 | } | |
205 | } else if (w->type == WORK_FILE) { | |
206 | size_t sz; | |
207 | void* data = load_file(w->identifier, &sz); | |
208 | if (data) { | |
209 | hit |= grep_buffer(opt, w->name, data, sz); | |
210 | free(data); | |
211 | } | |
212 | } else { | |
213 | assert(0); | |
214 | } | |
215 | ||
216 | work_done(w); | |
217 | } | |
bfac23d9 DM |
218 | free_grep_patterns(arg); |
219 | free(arg); | |
5b594f45 FK |
220 | |
221 | return (void*) (intptr_t) hit; | |
222 | } | |
223 | ||
224 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
225 | { | |
226 | struct work_item *w = opt->output_priv; | |
227 | strbuf_add(&w->out, buf, size); | |
228 | } | |
229 | ||
230 | static void start_threads(struct grep_opt *opt) | |
231 | { | |
232 | int i; | |
233 | ||
234 | pthread_mutex_init(&grep_mutex, NULL); | |
235 | pthread_mutex_init(&read_sha1_mutex, NULL); | |
236 | pthread_cond_init(&cond_add, NULL); | |
237 | pthread_cond_init(&cond_write, NULL); | |
238 | pthread_cond_init(&cond_result, NULL); | |
239 | ||
240 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
241 | strbuf_init(&todo[i].out, 0); | |
242 | } | |
243 | ||
244 | for (i = 0; i < ARRAY_SIZE(threads); i++) { | |
245 | int err; | |
246 | struct grep_opt *o = grep_opt_dup(opt); | |
247 | o->output = strbuf_out; | |
248 | compile_grep_patterns(o); | |
249 | err = pthread_create(&threads[i], NULL, run, o); | |
250 | ||
251 | if (err) | |
252 | die("grep: failed to create thread: %s", | |
253 | strerror(err)); | |
254 | } | |
255 | } | |
256 | ||
257 | static int wait_all(void) | |
258 | { | |
259 | int hit = 0; | |
260 | int i; | |
261 | ||
262 | grep_lock(); | |
263 | all_work_added = 1; | |
264 | ||
265 | /* Wait until all work is done. */ | |
266 | while (todo_done != todo_end) | |
267 | pthread_cond_wait(&cond_result, &grep_mutex); | |
268 | ||
269 | /* Wake up all the consumer threads so they can see that there | |
270 | * is no more work to do. | |
271 | */ | |
272 | pthread_cond_broadcast(&cond_add); | |
273 | grep_unlock(); | |
274 | ||
275 | for (i = 0; i < ARRAY_SIZE(threads); i++) { | |
276 | void *h; | |
277 | pthread_join(threads[i], &h); | |
278 | hit |= (int) (intptr_t) h; | |
279 | } | |
280 | ||
281 | pthread_mutex_destroy(&grep_mutex); | |
282 | pthread_mutex_destroy(&read_sha1_mutex); | |
283 | pthread_cond_destroy(&cond_add); | |
284 | pthread_cond_destroy(&cond_write); | |
285 | pthread_cond_destroy(&cond_result); | |
286 | ||
287 | return hit; | |
288 | } | |
289 | #else /* !NO_PTHREADS */ | |
290 | #define read_sha1_lock() | |
291 | #define read_sha1_unlock() | |
292 | ||
293 | static int wait_all(void) | |
294 | { | |
295 | return 0; | |
296 | } | |
297 | #endif | |
298 | ||
7e8f59d5 RS |
299 | static int grep_config(const char *var, const char *value, void *cb) |
300 | { | |
301 | struct grep_opt *opt = cb; | |
55f638bd | 302 | char *color = NULL; |
7e8f59d5 | 303 | |
60ecac98 RS |
304 | switch (userdiff_config(var, value)) { |
305 | case 0: break; | |
306 | case -1: return -1; | |
307 | default: return 0; | |
308 | } | |
309 | ||
55f638bd | 310 | if (!strcmp(var, "color.grep")) |
7e8f59d5 | 311 | opt->color = git_config_colorbool(var, value, -1); |
00588bb5 ML |
312 | else if (!strcmp(var, "color.grep.context")) |
313 | color = opt->color_context; | |
55f638bd ML |
314 | else if (!strcmp(var, "color.grep.filename")) |
315 | color = opt->color_filename; | |
00588bb5 ML |
316 | else if (!strcmp(var, "color.grep.function")) |
317 | color = opt->color_function; | |
55f638bd ML |
318 | else if (!strcmp(var, "color.grep.linenumber")) |
319 | color = opt->color_lineno; | |
320 | else if (!strcmp(var, "color.grep.match")) | |
321 | color = opt->color_match; | |
00588bb5 ML |
322 | else if (!strcmp(var, "color.grep.selected")) |
323 | color = opt->color_selected; | |
55f638bd ML |
324 | else if (!strcmp(var, "color.grep.separator")) |
325 | color = opt->color_sep; | |
326 | else | |
327 | return git_color_default_config(var, value, cb); | |
328 | if (color) { | |
7e8f59d5 RS |
329 | if (!value) |
330 | return config_error_nonbool(var); | |
55f638bd | 331 | color_parse(value, var, color); |
7e8f59d5 | 332 | } |
55f638bd | 333 | return 0; |
7e8f59d5 RS |
334 | } |
335 | ||
a91f453f MK |
336 | /* |
337 | * Return non-zero if max_depth is negative or path has no more then max_depth | |
338 | * slashes. | |
339 | */ | |
340 | static int accept_subdir(const char *path, int max_depth) | |
341 | { | |
342 | if (max_depth < 0) | |
343 | return 1; | |
344 | ||
345 | while ((path = strchr(path, '/')) != NULL) { | |
346 | max_depth--; | |
347 | if (max_depth < 0) | |
348 | return 0; | |
349 | path++; | |
350 | } | |
351 | return 1; | |
352 | } | |
353 | ||
354 | /* | |
355 | * Return non-zero if name is a subdirectory of match and is not too deep. | |
356 | */ | |
357 | static int is_subdir(const char *name, int namelen, | |
358 | const char *match, int matchlen, int max_depth) | |
359 | { | |
360 | if (matchlen > namelen || strncmp(name, match, matchlen)) | |
361 | return 0; | |
362 | ||
363 | if (name[matchlen] == '\0') /* exact match */ | |
364 | return 1; | |
365 | ||
366 | if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/') | |
367 | return accept_subdir(name + matchlen + 1, max_depth); | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
e0eb889f JH |
372 | /* |
373 | * git grep pathspecs are somewhat different from diff-tree pathspecs; | |
374 | * pathname wildcards are allowed. | |
375 | */ | |
a91f453f | 376 | static int pathspec_matches(const char **paths, const char *name, int max_depth) |
5010cb5f | 377 | { |
e0eb889f | 378 | int namelen, i; |
1362671f | 379 | if (!paths || !*paths) |
a91f453f | 380 | return accept_subdir(name, max_depth); |
5010cb5f | 381 | namelen = strlen(name); |
1362671f JH |
382 | for (i = 0; paths[i]; i++) { |
383 | const char *match = paths[i]; | |
384 | int matchlen = strlen(match); | |
1e3d90e0 | 385 | const char *cp, *meta; |
e0eb889f | 386 | |
a91f453f | 387 | if (is_subdir(name, namelen, match, matchlen, max_depth)) |
e0eb889f JH |
388 | return 1; |
389 | if (!fnmatch(match, name, 0)) | |
390 | return 1; | |
391 | if (name[namelen-1] != '/') | |
5010cb5f | 392 | continue; |
e0eb889f | 393 | |
1e3d90e0 | 394 | /* We are being asked if the directory ("name") is worth |
e0eb889f JH |
395 | * descending into. |
396 | * | |
397 | * Find the longest leading directory name that does | |
398 | * not have metacharacter in the pathspec; the name | |
399 | * we are looking at must overlap with that directory. | |
5010cb5f | 400 | */ |
1e3d90e0 | 401 | for (cp = match, meta = NULL; cp - match < matchlen; cp++) { |
e0eb889f | 402 | char ch = *cp; |
1e3d90e0 JH |
403 | if (ch == '*' || ch == '[' || ch == '?') { |
404 | meta = cp; | |
5010cb5f | 405 | break; |
1e3d90e0 | 406 | } |
e0eb889f | 407 | } |
1e3d90e0 JH |
408 | if (!meta) |
409 | meta = cp; /* fully literal */ | |
410 | ||
411 | if (namelen <= meta - match) { | |
e0eb889f JH |
412 | /* Looking at "Documentation/" and |
413 | * the pattern says "Documentation/howto/", or | |
1e3d90e0 JH |
414 | * "Documentation/diff*.txt". The name we |
415 | * have should match prefix. | |
e0eb889f JH |
416 | */ |
417 | if (!memcmp(match, name, namelen)) | |
418 | return 1; | |
1e3d90e0 | 419 | continue; |
e0eb889f | 420 | } |
1e3d90e0 JH |
421 | |
422 | if (meta - match < namelen) { | |
e0eb889f | 423 | /* Looking at "Documentation/howto/" and |
1e3d90e0 JH |
424 | * the pattern says "Documentation/h*"; |
425 | * match up to "Do.../h"; this avoids descending | |
426 | * into "Documentation/technical/". | |
e0eb889f | 427 | */ |
1e3d90e0 | 428 | if (!memcmp(match, name, meta - match)) |
e0eb889f | 429 | return 1; |
1e3d90e0 | 430 | continue; |
e0eb889f | 431 | } |
5010cb5f JH |
432 | } |
433 | return 0; | |
434 | } | |
435 | ||
5f02d315 JH |
436 | static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) |
437 | { | |
438 | void *data; | |
439 | ||
440 | if (use_threads) { | |
441 | read_sha1_lock(); | |
442 | data = read_sha1_file(sha1, type, size); | |
443 | read_sha1_unlock(); | |
444 | } else { | |
445 | data = read_sha1_file(sha1, type, size); | |
446 | } | |
447 | return data; | |
448 | } | |
449 | ||
5b594f45 FK |
450 | static void *load_sha1(const unsigned char *sha1, unsigned long *size, |
451 | const char *name) | |
5010cb5f | 452 | { |
21666f1a | 453 | enum object_type type; |
5f02d315 | 454 | void *data = lock_and_read_sha1_file(sha1, &type, size); |
5b594f45 FK |
455 | |
456 | if (!data) | |
5010cb5f | 457 | error("'%s': unable to read %s", name, sha1_to_hex(sha1)); |
5b594f45 FK |
458 | |
459 | return data; | |
460 | } | |
461 | ||
462 | static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, | |
463 | const char *filename, int tree_name_len) | |
464 | { | |
465 | struct strbuf pathbuf = STRBUF_INIT; | |
466 | char *name; | |
467 | ||
0d042fec | 468 | if (opt->relative && opt->prefix_length) { |
5b594f45 FK |
469 | quote_path_relative(filename + tree_name_len, -1, &pathbuf, |
470 | opt->prefix); | |
471 | strbuf_insert(&pathbuf, 0, filename, tree_name_len); | |
472 | } else { | |
473 | strbuf_addstr(&pathbuf, filename); | |
474 | } | |
475 | ||
476 | name = strbuf_detach(&pathbuf, NULL); | |
477 | ||
478 | #ifndef NO_PTHREADS | |
479 | if (use_threads) { | |
480 | grep_sha1_async(opt, name, sha1); | |
481 | return 0; | |
482 | } else | |
483 | #endif | |
484 | { | |
485 | int hit; | |
486 | unsigned long sz; | |
487 | void *data = load_sha1(sha1, &sz, name); | |
488 | if (!data) | |
489 | hit = 0; | |
490 | else | |
491 | hit = grep_buffer(opt, name, data, sz); | |
492 | ||
493 | free(data); | |
494 | free(name); | |
495 | return hit; | |
0d042fec | 496 | } |
5010cb5f JH |
497 | } |
498 | ||
5b594f45 | 499 | static void *load_file(const char *filename, size_t *sz) |
5010cb5f JH |
500 | { |
501 | struct stat st; | |
5010cb5f | 502 | char *data; |
5b594f45 | 503 | int i; |
dc49cd76 | 504 | |
5010cb5f JH |
505 | if (lstat(filename, &st) < 0) { |
506 | err_ret: | |
507 | if (errno != ENOENT) | |
508 | error("'%s': %s", filename, strerror(errno)); | |
509 | return 0; | |
510 | } | |
5010cb5f JH |
511 | if (!S_ISREG(st.st_mode)) |
512 | return 0; | |
5b594f45 | 513 | *sz = xsize_t(st.st_size); |
5010cb5f JH |
514 | i = open(filename, O_RDONLY); |
515 | if (i < 0) | |
516 | goto err_ret; | |
5b594f45 FK |
517 | data = xmalloc(*sz + 1); |
518 | if (st.st_size != read_in_full(i, data, *sz)) { | |
5010cb5f JH |
519 | error("'%s': short read %s", filename, strerror(errno)); |
520 | close(i); | |
521 | free(data); | |
522 | return 0; | |
523 | } | |
524 | close(i); | |
5b594f45 FK |
525 | data[*sz] = 0; |
526 | return data; | |
527 | } | |
528 | ||
529 | static int grep_file(struct grep_opt *opt, const char *filename) | |
530 | { | |
531 | struct strbuf buf = STRBUF_INIT; | |
532 | char *name; | |
533 | ||
0d042fec | 534 | if (opt->relative && opt->prefix_length) |
5b594f45 FK |
535 | quote_path_relative(filename, -1, &buf, opt->prefix); |
536 | else | |
537 | strbuf_addstr(&buf, filename); | |
538 | name = strbuf_detach(&buf, NULL); | |
539 | ||
540 | #ifndef NO_PTHREADS | |
541 | if (use_threads) { | |
542 | grep_file_async(opt, name, filename); | |
543 | return 0; | |
544 | } else | |
545 | #endif | |
546 | { | |
547 | int hit; | |
548 | size_t sz; | |
549 | void *data = load_file(filename, &sz); | |
550 | if (!data) | |
551 | hit = 0; | |
552 | else | |
553 | hit = grep_buffer(opt, name, data, sz); | |
554 | ||
555 | free(data); | |
556 | free(name); | |
557 | return hit; | |
558 | } | |
5010cb5f JH |
559 | } |
560 | ||
678e484b JS |
561 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
562 | { | |
563 | struct string_list *path_list = opt->output_priv; | |
564 | ||
565 | if (len == 1 && *(const char *)data == '\0') | |
566 | return; | |
0c72cead | 567 | string_list_append(path_list, xstrndup(data, len)); |
678e484b JS |
568 | } |
569 | ||
570 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
571 | { | |
572 | struct string_list *path_list = opt->output_priv; | |
573 | const char **argv = xmalloc(sizeof(const char *) * (path_list->nr + 1)); | |
574 | int i, status; | |
575 | ||
576 | for (i = 0; i < path_list->nr; i++) | |
577 | argv[i] = path_list->items[i].string; | |
578 | argv[path_list->nr] = NULL; | |
579 | ||
580 | if (prefix && chdir(prefix)) | |
581 | die("Failed to chdir: %s", prefix); | |
582 | status = run_command_v_opt(argv, RUN_USING_SHELL); | |
583 | if (status) | |
584 | exit(status); | |
585 | free(argv); | |
586 | } | |
587 | ||
bbc09c22 | 588 | static int grep_cache(struct grep_opt *opt, const char **paths, int cached) |
5010cb5f JH |
589 | { |
590 | int hit = 0; | |
591 | int nr; | |
592 | read_cache(); | |
593 | ||
594 | for (nr = 0; nr < active_nr; nr++) { | |
595 | struct cache_entry *ce = active_cache[nr]; | |
7a51ed66 | 596 | if (!S_ISREG(ce->ce_mode)) |
5010cb5f | 597 | continue; |
a91f453f | 598 | if (!pathspec_matches(paths, ce->name, opt->max_depth)) |
5010cb5f | 599 | continue; |
57d43466 NTND |
600 | /* |
601 | * If CE_VALID is on, we assume worktree file and its cache entry | |
602 | * are identical, even if worktree file has been modified, so use | |
603 | * cache version instead | |
604 | */ | |
b4d1690d | 605 | if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) { |
36f2587f JH |
606 | if (ce_stage(ce)) |
607 | continue; | |
0d042fec | 608 | hit |= grep_sha1(opt, ce->sha1, ce->name, 0); |
36f2587f | 609 | } |
5010cb5f JH |
610 | else |
611 | hit |= grep_file(opt, ce->name); | |
36f2587f JH |
612 | if (ce_stage(ce)) { |
613 | do { | |
614 | nr++; | |
615 | } while (nr < active_nr && | |
616 | !strcmp(ce->name, active_cache[nr]->name)); | |
617 | nr--; /* compensate for loop control */ | |
618 | } | |
c8610a2e JH |
619 | if (hit && opt->status_only) |
620 | break; | |
5010cb5f JH |
621 | } |
622 | return hit; | |
623 | } | |
624 | ||
1362671f | 625 | static int grep_tree(struct grep_opt *opt, const char **paths, |
5010cb5f JH |
626 | struct tree_desc *tree, |
627 | const char *tree_name, const char *base) | |
628 | { | |
5010cb5f JH |
629 | int len; |
630 | int hit = 0; | |
4c068a98 | 631 | struct name_entry entry; |
e0eb889f | 632 | char *down; |
0d042fec | 633 | int tn_len = strlen(tree_name); |
620e2bb9 DP |
634 | struct strbuf pathbuf; |
635 | ||
636 | strbuf_init(&pathbuf, PATH_MAX + tn_len); | |
5010cb5f | 637 | |
0d042fec | 638 | if (tn_len) { |
620e2bb9 DP |
639 | strbuf_add(&pathbuf, tree_name, tn_len); |
640 | strbuf_addch(&pathbuf, ':'); | |
641 | tn_len = pathbuf.len; | |
5010cb5f | 642 | } |
620e2bb9 DP |
643 | strbuf_addstr(&pathbuf, base); |
644 | len = pathbuf.len; | |
5010cb5f | 645 | |
4c068a98 | 646 | while (tree_entry(tree, &entry)) { |
620e2bb9 DP |
647 | int te_len = tree_entry_len(entry.path, entry.sha1); |
648 | pathbuf.len = len; | |
649 | strbuf_add(&pathbuf, entry.path, te_len); | |
5010cb5f | 650 | |
4c068a98 | 651 | if (S_ISDIR(entry.mode)) |
e0eb889f JH |
652 | /* Match "abc/" against pathspec to |
653 | * decide if we want to descend into "abc" | |
654 | * directory. | |
655 | */ | |
620e2bb9 | 656 | strbuf_addch(&pathbuf, '/'); |
e0eb889f | 657 | |
620e2bb9 | 658 | down = pathbuf.buf + tn_len; |
a91f453f | 659 | if (!pathspec_matches(paths, down, opt->max_depth)) |
5010cb5f | 660 | ; |
4c068a98 | 661 | else if (S_ISREG(entry.mode)) |
620e2bb9 | 662 | hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len); |
4c068a98 | 663 | else if (S_ISDIR(entry.mode)) { |
21666f1a | 664 | enum object_type type; |
5010cb5f JH |
665 | struct tree_desc sub; |
666 | void *data; | |
6fda5e51 LT |
667 | unsigned long size; |
668 | ||
5f02d315 | 669 | data = lock_and_read_sha1_file(entry.sha1, &type, &size); |
5010cb5f JH |
670 | if (!data) |
671 | die("unable to read tree (%s)", | |
4c068a98 | 672 | sha1_to_hex(entry.sha1)); |
6fda5e51 | 673 | init_tree_desc(&sub, data, size); |
1362671f | 674 | hit |= grep_tree(opt, paths, &sub, tree_name, down); |
5010cb5f JH |
675 | free(data); |
676 | } | |
c8610a2e JH |
677 | if (hit && opt->status_only) |
678 | break; | |
5010cb5f | 679 | } |
620e2bb9 | 680 | strbuf_release(&pathbuf); |
5010cb5f JH |
681 | return hit; |
682 | } | |
683 | ||
1362671f | 684 | static int grep_object(struct grep_opt *opt, const char **paths, |
5010cb5f JH |
685 | struct object *obj, const char *name) |
686 | { | |
1974632c | 687 | if (obj->type == OBJ_BLOB) |
0d042fec | 688 | return grep_sha1(opt, obj->sha1, name, 0); |
1974632c | 689 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
690 | struct tree_desc tree; |
691 | void *data; | |
6fda5e51 | 692 | unsigned long size; |
5010cb5f JH |
693 | int hit; |
694 | data = read_object_with_reference(obj->sha1, tree_type, | |
6fda5e51 | 695 | &size, NULL); |
5010cb5f JH |
696 | if (!data) |
697 | die("unable to read tree (%s)", sha1_to_hex(obj->sha1)); | |
6fda5e51 | 698 | init_tree_desc(&tree, data, size); |
1362671f | 699 | hit = grep_tree(opt, paths, &tree, name, ""); |
5010cb5f JH |
700 | free(data); |
701 | return hit; | |
702 | } | |
885a86ab | 703 | die("unable to grep from object of type %s", typename(obj->type)); |
5010cb5f JH |
704 | } |
705 | ||
30d00c39 JN |
706 | static int grep_objects(struct grep_opt *opt, const char **paths, |
707 | const struct object_array *list) | |
708 | { | |
709 | unsigned int i; | |
710 | int hit = 0; | |
711 | const unsigned int nr = list->nr; | |
712 | ||
713 | for (i = 0; i < nr; i++) { | |
714 | struct object *real_obj; | |
715 | real_obj = deref_tag(list->objects[i].item, NULL, 0); | |
716 | if (grep_object(opt, paths, real_obj, list->objects[i].name)) { | |
717 | hit = 1; | |
718 | if (opt->status_only) | |
719 | break; | |
720 | } | |
721 | } | |
722 | return hit; | |
723 | } | |
724 | ||
59332d13 JH |
725 | static int grep_directory(struct grep_opt *opt, const char **paths) |
726 | { | |
727 | struct dir_struct dir; | |
728 | int i, hit = 0; | |
729 | ||
730 | memset(&dir, 0, sizeof(dir)); | |
731 | setup_standard_excludes(&dir); | |
732 | ||
733 | fill_directory(&dir, paths); | |
734 | for (i = 0; i < dir.nr; i++) { | |
735 | hit |= grep_file(opt, dir.entries[i]->name); | |
736 | if (hit && opt->status_only) | |
737 | break; | |
738 | } | |
59332d13 JH |
739 | return hit; |
740 | } | |
741 | ||
ff3c7f9a RS |
742 | static int context_callback(const struct option *opt, const char *arg, |
743 | int unset) | |
3e230fa1 RS |
744 | { |
745 | struct grep_opt *grep_opt = opt->value; | |
746 | int value; | |
747 | const char *endp; | |
748 | ||
749 | if (unset) { | |
750 | grep_opt->pre_context = grep_opt->post_context = 0; | |
751 | return 0; | |
752 | } | |
753 | value = strtol(arg, (char **)&endp, 10); | |
754 | if (*endp) { | |
755 | return error("switch `%c' expects a numerical value", | |
756 | opt->short_name); | |
757 | } | |
758 | grep_opt->pre_context = grep_opt->post_context = value; | |
759 | return 0; | |
760 | } | |
761 | ||
ff3c7f9a | 762 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
763 | { |
764 | struct grep_opt *grep_opt = opt->value; | |
765 | FILE *patterns; | |
766 | int lno = 0; | |
cfe370c6 | 767 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 RS |
768 | |
769 | patterns = fopen(arg, "r"); | |
770 | if (!patterns) | |
d824cbba | 771 | die_errno("cannot open '%s'", arg); |
3e230fa1 | 772 | while (strbuf_getline(&sb, patterns, '\n') == 0) { |
ed40a095 RS |
773 | char *s; |
774 | size_t len; | |
775 | ||
3e230fa1 RS |
776 | /* ignore empty line like grep does */ |
777 | if (sb.len == 0) | |
778 | continue; | |
ed40a095 RS |
779 | |
780 | s = strbuf_detach(&sb, &len); | |
781 | append_grep_pat(grep_opt, s, len, arg, ++lno, GREP_PATTERN); | |
3e230fa1 RS |
782 | } |
783 | fclose(patterns); | |
784 | strbuf_release(&sb); | |
785 | return 0; | |
786 | } | |
787 | ||
ff3c7f9a | 788 | static int not_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, "--not", "command line", 0, GREP_NOT); | |
792 | return 0; | |
793 | } | |
794 | ||
ff3c7f9a | 795 | static int and_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, "--and", "command line", 0, GREP_AND); | |
799 | return 0; | |
800 | } | |
801 | ||
ff3c7f9a | 802 | static int open_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_OPEN_PAREN); | |
806 | return 0; | |
807 | } | |
808 | ||
ff3c7f9a | 809 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
810 | { |
811 | struct grep_opt *grep_opt = opt->value; | |
812 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); | |
813 | return 0; | |
814 | } | |
815 | ||
ff3c7f9a RS |
816 | static int pattern_callback(const struct option *opt, const char *arg, |
817 | int unset) | |
3e230fa1 RS |
818 | { |
819 | struct grep_opt *grep_opt = opt->value; | |
820 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); | |
821 | return 0; | |
822 | } | |
5010cb5f | 823 | |
ff3c7f9a | 824 | static int help_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
825 | { |
826 | return -1; | |
827 | } | |
088b084b | 828 | |
a633fca0 | 829 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 830 | { |
5010cb5f | 831 | int hit = 0; |
5010cb5f | 832 | int cached = 0; |
5acd64ed | 833 | int seen_dashdash = 0; |
bbc09c22 | 834 | int external_grep_allowed__ignored; |
0af88c15 | 835 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 836 | struct grep_opt opt; |
1f1e895f | 837 | struct object_array list = { 0, 0, NULL }; |
1362671f | 838 | const char **paths = NULL; |
183113a5 | 839 | struct string_list path_list = STRING_LIST_INIT_NODUP; |
5acd64ed | 840 | int i; |
3e230fa1 | 841 | int dummy; |
59332d13 | 842 | int nongit = 0, use_index = 1; |
3e230fa1 RS |
843 | struct option options[] = { |
844 | OPT_BOOLEAN(0, "cached", &cached, | |
845 | "search in index instead of in the work tree"), | |
59332d13 JH |
846 | OPT_BOOLEAN(0, "index", &use_index, |
847 | "--no-index finds in contents not managed by git"), | |
3e230fa1 RS |
848 | OPT_GROUP(""), |
849 | OPT_BOOLEAN('v', "invert-match", &opt.invert, | |
850 | "show non-matching lines"), | |
5183bf67 BC |
851 | OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case, |
852 | "case insensitive matching"), | |
3e230fa1 RS |
853 | OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp, |
854 | "match patterns only at word boundaries"), | |
855 | OPT_SET_INT('a', "text", &opt.binary, | |
856 | "process binary files as text", GREP_BINARY_TEXT), | |
857 | OPT_SET_INT('I', NULL, &opt.binary, | |
858 | "don't match patterns in binary files", | |
859 | GREP_BINARY_NOMATCH), | |
a91f453f MK |
860 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth", |
861 | "descend at most <depth> levels", PARSE_OPT_NONEG, | |
862 | NULL, 1 }, | |
3e230fa1 RS |
863 | OPT_GROUP(""), |
864 | OPT_BIT('E', "extended-regexp", &opt.regflags, | |
865 | "use extended POSIX regular expressions", REG_EXTENDED), | |
866 | OPT_NEGBIT('G', "basic-regexp", &opt.regflags, | |
867 | "use basic POSIX regular expressions (default)", | |
868 | REG_EXTENDED), | |
869 | OPT_BOOLEAN('F', "fixed-strings", &opt.fixed, | |
870 | "interpret patterns as fixed strings"), | |
871 | OPT_GROUP(""), | |
872 | OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"), | |
873 | OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1), | |
874 | OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1), | |
875 | OPT_NEGBIT(0, "full-name", &opt.relative, | |
876 | "show filenames relative to top directory", 1), | |
877 | OPT_BOOLEAN('l', "files-with-matches", &opt.name_only, | |
878 | "show only filenames instead of matching lines"), | |
879 | OPT_BOOLEAN(0, "name-only", &opt.name_only, | |
880 | "synonym for --files-with-matches"), | |
881 | OPT_BOOLEAN('L', "files-without-match", | |
882 | &opt.unmatch_name_only, | |
883 | "show only the names of files without match"), | |
884 | OPT_BOOLEAN('z', "null", &opt.null_following_name, | |
885 | "print NUL after filenames"), | |
886 | OPT_BOOLEAN('c', "count", &opt.count, | |
887 | "show the number of matches instead of matching lines"), | |
73e9da01 | 888 | OPT__COLOR(&opt.color, "highlight matches"), |
3e230fa1 RS |
889 | OPT_GROUP(""), |
890 | OPT_CALLBACK('C', NULL, &opt, "n", | |
891 | "show <n> context lines before and after matches", | |
892 | context_callback), | |
893 | OPT_INTEGER('B', NULL, &opt.pre_context, | |
894 | "show <n> context lines before matches"), | |
895 | OPT_INTEGER('A', NULL, &opt.post_context, | |
896 | "show <n> context lines after matches"), | |
897 | OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM", | |
898 | context_callback), | |
2944e4e6 RS |
899 | OPT_BOOLEAN('p', "show-function", &opt.funcname, |
900 | "show a line with the function name before matches"), | |
3e230fa1 RS |
901 | OPT_GROUP(""), |
902 | OPT_CALLBACK('f', NULL, &opt, "file", | |
903 | "read patterns from file", file_callback), | |
904 | { OPTION_CALLBACK, 'e', NULL, &opt, "pattern", | |
905 | "match <pattern>", PARSE_OPT_NONEG, pattern_callback }, | |
906 | { OPTION_CALLBACK, 0, "and", &opt, NULL, | |
907 | "combine patterns specified with -e", | |
908 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, | |
909 | OPT_BOOLEAN(0, "or", &dummy, ""), | |
910 | { OPTION_CALLBACK, 0, "not", &opt, NULL, "", | |
911 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, | |
912 | { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", | |
913 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
914 | open_callback }, | |
915 | { OPTION_CALLBACK, ')', NULL, &opt, NULL, "", | |
916 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
917 | close_callback }, | |
4ff61c21 | 918 | OPT_BOOLEAN('q', "quiet", &opt.status_only, |
c8610a2e | 919 | "indicate hit with exit status without output"), |
3e230fa1 RS |
920 | OPT_BOOLEAN(0, "all-match", &opt.all_match, |
921 | "show only matches from files that match all patterns"), | |
922 | OPT_GROUP(""), | |
0af88c15 JS |
923 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
924 | "pager", "show matching files in the pager", | |
925 | PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, | |
bbc09c22 JH |
926 | OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored, |
927 | "allow calling of grep(1) (ignored by this build)"), | |
3e230fa1 RS |
928 | { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage", |
929 | PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback }, | |
930 | OPT_END() | |
931 | }; | |
5010cb5f | 932 | |
59332d13 JH |
933 | prefix = setup_git_directory_gently(&nongit); |
934 | ||
9c855c31 JN |
935 | /* |
936 | * 'git grep -h', unlike 'git grep -h <pattern>', is a request | |
937 | * to show usage information and exit. | |
938 | */ | |
939 | if (argc == 2 && !strcmp(argv[1], "-h")) | |
940 | usage_with_options(grep_usage, options); | |
941 | ||
5010cb5f | 942 | memset(&opt, 0, sizeof(opt)); |
493b7a08 | 943 | opt.prefix = prefix; |
0d042fec JH |
944 | opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0; |
945 | opt.relative = 1; | |
7977f0ea | 946 | opt.pathname = 1; |
f9b9faf6 | 947 | opt.pattern_tail = &opt.pattern_list; |
80235ba7 | 948 | opt.header_tail = &opt.header_list; |
5010cb5f | 949 | opt.regflags = REG_NEWLINE; |
a91f453f | 950 | opt.max_depth = -1; |
5010cb5f | 951 | |
00588bb5 | 952 | strcpy(opt.color_context, ""); |
55f638bd | 953 | strcpy(opt.color_filename, ""); |
00588bb5 | 954 | strcpy(opt.color_function, ""); |
55f638bd | 955 | strcpy(opt.color_lineno, ""); |
758df17a | 956 | strcpy(opt.color_match, GIT_COLOR_BOLD_RED); |
00588bb5 | 957 | strcpy(opt.color_selected, ""); |
55f638bd | 958 | strcpy(opt.color_sep, GIT_COLOR_CYAN); |
7e8f59d5 RS |
959 | opt.color = -1; |
960 | git_config(grep_config, &opt); | |
961 | if (opt.color == -1) | |
962 | opt.color = git_use_color_default; | |
963 | ||
5010cb5f | 964 | /* |
5acd64ed JH |
965 | * If there is no -- then the paths must exist in the working |
966 | * tree. If there is no explicit pattern specified with -e or | |
967 | * -f, we take the first unrecognized non option to be the | |
968 | * pattern, but then what follows it must be zero or more | |
969 | * valid refs up to the -- (if exists), and then existing | |
970 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 971 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 972 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 973 | */ |
37782920 | 974 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 RS |
975 | PARSE_OPT_KEEP_DASHDASH | |
976 | PARSE_OPT_STOP_AT_NON_OPTION | | |
977 | PARSE_OPT_NO_INTERNAL_HELP); | |
978 | ||
59332d13 JH |
979 | if (use_index && nongit) |
980 | /* die the same way as if we did it at the beginning */ | |
981 | setup_git_directory(); | |
982 | ||
1123c67c JK |
983 | /* |
984 | * skip a -- separator; we know it cannot be | |
985 | * separating revisions from pathnames if | |
986 | * we haven't even had any patterns yet | |
987 | */ | |
988 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
989 | argv++; | |
990 | argc--; | |
991 | } | |
992 | ||
3e230fa1 RS |
993 | /* First unrecognized non-option token */ |
994 | if (argc > 0 && !opt.pattern_list) { | |
995 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
996 | GREP_PATTERN); | |
997 | argv++; | |
998 | argc--; | |
5010cb5f | 999 | } |
5acd64ed | 1000 | |
0af88c15 JS |
1001 | if (show_in_pager == default_pager) |
1002 | show_in_pager = git_pager(1); | |
678e484b | 1003 | if (show_in_pager) { |
0af88c15 JS |
1004 | opt.name_only = 1; |
1005 | opt.null_following_name = 1; | |
1006 | opt.output_priv = &path_list; | |
1007 | opt.output = append_path; | |
0c72cead | 1008 | string_list_append(&path_list, show_in_pager); |
0af88c15 | 1009 | use_threads = 0; |
678e484b JS |
1010 | } |
1011 | ||
f9b9faf6 | 1012 | if (!opt.pattern_list) |
5010cb5f | 1013 | die("no pattern given."); |
5183bf67 BC |
1014 | if (!opt.fixed && opt.ignore_case) |
1015 | opt.regflags |= REG_ICASE; | |
07ea91d8 JH |
1016 | if ((opt.regflags != REG_NEWLINE) && opt.fixed) |
1017 | die("cannot mix --fixed-strings and regexp"); | |
5b594f45 FK |
1018 | |
1019 | #ifndef NO_PTHREADS | |
1020 | if (online_cpus() == 1 || !grep_threads_ok(&opt)) | |
1021 | use_threads = 0; | |
1022 | ||
431d6e7b RS |
1023 | if (use_threads) { |
1024 | if (opt.pre_context || opt.post_context) | |
1025 | print_hunk_marks_between_files = 1; | |
5b594f45 | 1026 | start_threads(&opt); |
431d6e7b | 1027 | } |
5b594f45 FK |
1028 | #else |
1029 | use_threads = 0; | |
1030 | #endif | |
1031 | ||
83b5d2f5 | 1032 | compile_grep_patterns(&opt); |
5acd64ed JH |
1033 | |
1034 | /* Check revs and then paths */ | |
3e230fa1 | 1035 | for (i = 0; i < argc; i++) { |
5acd64ed | 1036 | const char *arg = argv[i]; |
1362671f | 1037 | unsigned char sha1[20]; |
5acd64ed JH |
1038 | /* Is it a rev? */ |
1039 | if (!get_sha1(arg, sha1)) { | |
1040 | struct object *object = parse_object(sha1); | |
5acd64ed JH |
1041 | if (!object) |
1042 | die("bad object %s", arg); | |
1f1e895f | 1043 | add_object_array(object, arg, &list); |
5acd64ed JH |
1044 | continue; |
1045 | } | |
1046 | if (!strcmp(arg, "--")) { | |
1047 | i++; | |
1048 | seen_dashdash = 1; | |
1049 | } | |
1050 | break; | |
1362671f | 1051 | } |
5acd64ed JH |
1052 | |
1053 | /* The rest are paths */ | |
1054 | if (!seen_dashdash) { | |
1055 | int j; | |
c39c4f47 | 1056 | for (j = i; j < argc; j++) |
5acd64ed JH |
1057 | verify_filename(prefix, argv[j]); |
1058 | } | |
1059 | ||
493b7a08 | 1060 | if (i < argc) |
5acd64ed | 1061 | paths = get_pathspec(prefix, argv + i); |
1362671f JH |
1062 | else if (prefix) { |
1063 | paths = xcalloc(2, sizeof(const char *)); | |
1064 | paths[0] = prefix; | |
1065 | paths[1] = NULL; | |
1066 | } | |
5010cb5f | 1067 | |
678e484b JS |
1068 | if (show_in_pager && (cached || list.nr)) |
1069 | die("--open-files-in-pager only works on the worktree"); | |
1070 | ||
1071 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1072 | const char *pager = path_list.items[0].string; | |
1073 | int len = strlen(pager); | |
1074 | ||
1075 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1076 | pager += len - 4; | |
1077 | ||
1078 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { | |
1079 | struct strbuf buf = STRBUF_INIT; | |
1080 | strbuf_addf(&buf, "+/%s%s", | |
1081 | strcmp("less", pager) ? "" : "*", | |
1082 | opt.pattern_list->pattern); | |
0c72cead | 1083 | string_list_append(&path_list, buf.buf); |
678e484b JS |
1084 | strbuf_detach(&buf, NULL); |
1085 | } | |
1086 | } | |
1087 | ||
1088 | if (!show_in_pager) | |
1089 | setup_pager(); | |
1090 | ||
1091 | ||
59332d13 | 1092 | if (!use_index) { |
59332d13 JH |
1093 | if (cached) |
1094 | die("--cached cannot be used with --no-index."); | |
1095 | if (list.nr) | |
1096 | die("--no-index cannot be used with revs."); | |
1097 | hit = grep_directory(&opt, paths); | |
685359cf | 1098 | } else if (!list.nr) { |
6577f542 NTND |
1099 | if (!cached) |
1100 | setup_work_tree(); | |
5b594f45 FK |
1101 | |
1102 | hit = grep_cache(&opt, paths, cached); | |
685359cf JS |
1103 | } else { |
1104 | if (cached) | |
1105 | die("both --cached and trees are given."); | |
1106 | hit = grep_objects(&opt, paths, &list); | |
5010cb5f | 1107 | } |
5b594f45 FK |
1108 | |
1109 | if (use_threads) | |
1110 | hit |= wait_all(); | |
678e484b JS |
1111 | if (hit && show_in_pager) |
1112 | run_pager(&opt, prefix); | |
b48fb5b6 | 1113 | free_grep_patterns(&opt); |
5010cb5f JH |
1114 | return !hit; |
1115 | } |