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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" | |
627d9342 | 7 | #include "repository.h" |
b2141fc1 | 8 | #include "config.h" |
5010cb5f JH |
9 | #include "blob.h" |
10 | #include "tree.h" | |
11 | #include "commit.h" | |
12 | #include "tag.h" | |
1362671f | 13 | #include "tree-walk.h" |
5010cb5f | 14 | #include "builtin.h" |
3e230fa1 | 15 | #include "parse-options.h" |
678e484b JS |
16 | #include "string-list.h" |
17 | #include "run-command.h" | |
60ecac98 | 18 | #include "userdiff.h" |
83b5d2f5 | 19 | #include "grep.h" |
493b7a08 | 20 | #include "quote.h" |
59332d13 | 21 | #include "dir.h" |
64acde94 | 22 | #include "pathspec.h" |
0281e487 | 23 | #include "submodule.h" |
74ed4371 | 24 | #include "submodule-config.h" |
5b594f45 | 25 | |
3e230fa1 | 26 | static char const * const grep_usage[] = { |
9c9b4f2f | 27 | N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), |
3e230fa1 RS |
28 | NULL |
29 | }; | |
30 | ||
0281e487 BW |
31 | static const char *super_prefix; |
32 | static int recurse_submodules; | |
33 | static struct argv_array submodule_options = ARGV_ARRAY_INIT; | |
74ed4371 | 34 | static const char *parent_basename; |
0281e487 BW |
35 | |
36 | static int grep_submodule_launch(struct grep_opt *opt, | |
37 | const struct grep_source *gs); | |
38 | ||
89f09dd3 VL |
39 | #define GREP_NUM_THREADS_DEFAULT 8 |
40 | static int num_threads; | |
5b594f45 FK |
41 | |
42 | #ifndef NO_PTHREADS | |
89f09dd3 | 43 | static pthread_t *threads; |
5b594f45 | 44 | |
5b594f45 FK |
45 | /* We use one producer thread and THREADS consumer |
46 | * threads. The producer adds struct work_items to 'todo' and the | |
47 | * consumers pick work items from the same array. | |
48 | */ | |
9cba13ca | 49 | struct work_item { |
8f24a632 | 50 | struct grep_source source; |
5b594f45 FK |
51 | char done; |
52 | struct strbuf out; | |
53 | }; | |
54 | ||
55 | /* In the range [todo_done, todo_start) in 'todo' we have work_items | |
56 | * that have been or are processed by a consumer thread. We haven't | |
57 | * written the result for these to stdout yet. | |
58 | * | |
59 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
60 | * up by a consumer thread. | |
61 | * | |
62 | * The ranges are modulo TODO_SIZE. | |
63 | */ | |
64 | #define TODO_SIZE 128 | |
65 | static struct work_item todo[TODO_SIZE]; | |
66 | static int todo_start; | |
67 | static int todo_end; | |
68 | static int todo_done; | |
69 | ||
70 | /* Has all work items been added? */ | |
71 | static int all_work_added; | |
72 | ||
73 | /* This lock protects all the variables above. */ | |
74 | static pthread_mutex_t grep_mutex; | |
75 | ||
1487a12b JH |
76 | static inline void grep_lock(void) |
77 | { | |
8df4c295 ÆAB |
78 | assert(num_threads); |
79 | pthread_mutex_lock(&grep_mutex); | |
1487a12b JH |
80 | } |
81 | ||
82 | static inline void grep_unlock(void) | |
83 | { | |
8df4c295 ÆAB |
84 | assert(num_threads); |
85 | pthread_mutex_unlock(&grep_mutex); | |
1487a12b JH |
86 | } |
87 | ||
5b594f45 FK |
88 | /* Signalled when a new work_item is added to todo. */ |
89 | static pthread_cond_t cond_add; | |
90 | ||
91 | /* Signalled when the result from one work_item is written to | |
92 | * stdout. | |
93 | */ | |
94 | static pthread_cond_t cond_write; | |
95 | ||
96 | /* Signalled when we are finished with everything. */ | |
97 | static pthread_cond_t cond_result; | |
98 | ||
08303c36 | 99 | static int skip_first_line; |
431d6e7b | 100 | |
9dd5245c | 101 | static void add_work(struct grep_opt *opt, enum grep_source_type type, |
55c61688 | 102 | const char *name, const char *path, const void *id) |
5b594f45 FK |
103 | { |
104 | grep_lock(); | |
105 | ||
106 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
107 | pthread_cond_wait(&cond_write, &grep_mutex); | |
108 | } | |
109 | ||
55c61688 | 110 | grep_source_init(&todo[todo_end].source, type, name, path, id); |
9dd5245c JK |
111 | if (opt->binary != GREP_BINARY_TEXT) |
112 | grep_source_load_driver(&todo[todo_end].source); | |
5b594f45 FK |
113 | todo[todo_end].done = 0; |
114 | strbuf_reset(&todo[todo_end].out); | |
115 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
116 | ||
117 | pthread_cond_signal(&cond_add); | |
118 | grep_unlock(); | |
119 | } | |
120 | ||
121 | static struct work_item *get_work(void) | |
122 | { | |
123 | struct work_item *ret; | |
124 | ||
125 | grep_lock(); | |
126 | while (todo_start == todo_end && !all_work_added) { | |
127 | pthread_cond_wait(&cond_add, &grep_mutex); | |
128 | } | |
129 | ||
130 | if (todo_start == todo_end && all_work_added) { | |
131 | ret = NULL; | |
132 | } else { | |
133 | ret = &todo[todo_start]; | |
134 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
135 | } | |
136 | grep_unlock(); | |
137 | return ret; | |
138 | } | |
139 | ||
5b594f45 FK |
140 | static void work_done(struct work_item *w) |
141 | { | |
142 | int old_done; | |
143 | ||
144 | grep_lock(); | |
145 | w->done = 1; | |
146 | old_done = todo_done; | |
147 | for(; todo[todo_done].done && todo_done != todo_start; | |
148 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
149 | w = &todo[todo_done]; | |
431d6e7b | 150 | if (w->out.len) { |
08303c36 RS |
151 | const char *p = w->out.buf; |
152 | size_t len = w->out.len; | |
153 | ||
154 | /* Skip the leading hunk mark of the first file. */ | |
155 | if (skip_first_line) { | |
156 | while (len) { | |
157 | len--; | |
158 | if (*p++ == '\n') | |
159 | break; | |
160 | } | |
161 | skip_first_line = 0; | |
162 | } | |
163 | ||
164 | write_or_die(1, p, len); | |
431d6e7b | 165 | } |
8f24a632 | 166 | grep_source_clear(&w->source); |
5b594f45 FK |
167 | } |
168 | ||
169 | if (old_done != todo_done) | |
170 | pthread_cond_signal(&cond_write); | |
171 | ||
172 | if (all_work_added && todo_done == todo_end) | |
173 | pthread_cond_signal(&cond_result); | |
174 | ||
175 | grep_unlock(); | |
176 | } | |
177 | ||
178 | static void *run(void *arg) | |
179 | { | |
180 | int hit = 0; | |
181 | struct grep_opt *opt = arg; | |
182 | ||
183 | while (1) { | |
184 | struct work_item *w = get_work(); | |
185 | if (!w) | |
186 | break; | |
187 | ||
188 | opt->output_priv = w; | |
0281e487 BW |
189 | if (w->source.type == GREP_SOURCE_SUBMODULE) |
190 | hit |= grep_submodule_launch(opt, &w->source); | |
191 | else | |
192 | hit |= grep_source(opt, &w->source); | |
8f24a632 | 193 | grep_source_clear_data(&w->source); |
5b594f45 FK |
194 | work_done(w); |
195 | } | |
bfac23d9 DM |
196 | free_grep_patterns(arg); |
197 | free(arg); | |
5b594f45 FK |
198 | |
199 | return (void*) (intptr_t) hit; | |
200 | } | |
201 | ||
202 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
203 | { | |
204 | struct work_item *w = opt->output_priv; | |
205 | strbuf_add(&w->out, buf, size); | |
206 | } | |
207 | ||
208 | static void start_threads(struct grep_opt *opt) | |
209 | { | |
210 | int i; | |
211 | ||
212 | pthread_mutex_init(&grep_mutex, NULL); | |
b3aeb285 | 213 | pthread_mutex_init(&grep_read_mutex, NULL); |
0579f91d | 214 | pthread_mutex_init(&grep_attr_mutex, NULL); |
5b594f45 FK |
215 | pthread_cond_init(&cond_add, NULL); |
216 | pthread_cond_init(&cond_write, NULL); | |
217 | pthread_cond_init(&cond_result, NULL); | |
78db6ea9 | 218 | grep_use_locks = 1; |
5b594f45 FK |
219 | |
220 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
221 | strbuf_init(&todo[i].out, 0); | |
222 | } | |
223 | ||
89f09dd3 VL |
224 | threads = xcalloc(num_threads, sizeof(*threads)); |
225 | for (i = 0; i < num_threads; i++) { | |
5b594f45 FK |
226 | int err; |
227 | struct grep_opt *o = grep_opt_dup(opt); | |
228 | o->output = strbuf_out; | |
6d423dd5 ÆAB |
229 | if (i) |
230 | o->debug = 0; | |
5b594f45 FK |
231 | compile_grep_patterns(o); |
232 | err = pthread_create(&threads[i], NULL, run, o); | |
233 | ||
234 | if (err) | |
2fc5f9f1 | 235 | die(_("grep: failed to create thread: %s"), |
5b594f45 FK |
236 | strerror(err)); |
237 | } | |
238 | } | |
239 | ||
240 | static int wait_all(void) | |
241 | { | |
242 | int hit = 0; | |
243 | int i; | |
244 | ||
245 | grep_lock(); | |
246 | all_work_added = 1; | |
247 | ||
248 | /* Wait until all work is done. */ | |
249 | while (todo_done != todo_end) | |
250 | pthread_cond_wait(&cond_result, &grep_mutex); | |
251 | ||
252 | /* Wake up all the consumer threads so they can see that there | |
253 | * is no more work to do. | |
254 | */ | |
255 | pthread_cond_broadcast(&cond_add); | |
256 | grep_unlock(); | |
257 | ||
89f09dd3 | 258 | for (i = 0; i < num_threads; i++) { |
5b594f45 FK |
259 | void *h; |
260 | pthread_join(threads[i], &h); | |
261 | hit |= (int) (intptr_t) h; | |
262 | } | |
263 | ||
89f09dd3 VL |
264 | free(threads); |
265 | ||
5b594f45 | 266 | pthread_mutex_destroy(&grep_mutex); |
b3aeb285 | 267 | pthread_mutex_destroy(&grep_read_mutex); |
0579f91d | 268 | pthread_mutex_destroy(&grep_attr_mutex); |
5b594f45 FK |
269 | pthread_cond_destroy(&cond_add); |
270 | pthread_cond_destroy(&cond_write); | |
271 | pthread_cond_destroy(&cond_result); | |
78db6ea9 | 272 | grep_use_locks = 0; |
5b594f45 FK |
273 | |
274 | return hit; | |
275 | } | |
276 | #else /* !NO_PTHREADS */ | |
5b594f45 FK |
277 | |
278 | static int wait_all(void) | |
279 | { | |
280 | return 0; | |
281 | } | |
282 | #endif | |
283 | ||
15fabd1b JH |
284 | static int grep_cmd_config(const char *var, const char *value, void *cb) |
285 | { | |
286 | int st = grep_config(var, value, cb); | |
287 | if (git_color_default_config(var, value, cb) < 0) | |
288 | st = -1; | |
89f09dd3 VL |
289 | |
290 | if (!strcmp(var, "grep.threads")) { | |
291 | num_threads = git_config_int(var, value); | |
292 | if (num_threads < 0) | |
293 | die(_("invalid number of threads specified (%d) for %s"), | |
294 | num_threads, var); | |
d1edee4a ÆAB |
295 | #ifdef NO_PTHREADS |
296 | else if (num_threads && num_threads != 1) { | |
297 | /* | |
298 | * TRANSLATORS: %s is the configuration | |
299 | * variable for tweaking threads, currently | |
300 | * grep.threads | |
301 | */ | |
302 | warning(_("no threads support, ignoring %s"), var); | |
303 | num_threads = 0; | |
304 | } | |
305 | #endif | |
89f09dd3 VL |
306 | } |
307 | ||
9071c078 SB |
308 | if (!strcmp(var, "submodule.recurse")) |
309 | recurse_submodules = git_config_bool(var, value); | |
310 | ||
15fabd1b JH |
311 | return st; |
312 | } | |
313 | ||
1db11086 | 314 | static void *lock_and_read_oid_file(const struct object_id *oid, enum object_type *type, unsigned long *size) |
5f02d315 JH |
315 | { |
316 | void *data; | |
317 | ||
b3aeb285 | 318 | grep_read_lock(); |
1db11086 | 319 | data = read_sha1_file(oid->hash, type, size); |
b3aeb285 | 320 | grep_read_unlock(); |
5b594f45 FK |
321 | return data; |
322 | } | |
323 | ||
1db11086 | 324 | static int grep_oid(struct grep_opt *opt, const struct object_id *oid, |
55c61688 NTND |
325 | const char *filename, int tree_name_len, |
326 | const char *path) | |
5b594f45 FK |
327 | { |
328 | struct strbuf pathbuf = STRBUF_INIT; | |
5b594f45 | 329 | |
be80a239 | 330 | if (super_prefix) { |
0281e487 BW |
331 | strbuf_add(&pathbuf, filename, tree_name_len); |
332 | strbuf_addstr(&pathbuf, super_prefix); | |
333 | strbuf_addstr(&pathbuf, filename + tree_name_len); | |
5b594f45 FK |
334 | } else { |
335 | strbuf_addstr(&pathbuf, filename); | |
336 | } | |
337 | ||
be80a239 BW |
338 | if (opt->relative && opt->prefix_length) { |
339 | char *name = strbuf_detach(&pathbuf, NULL); | |
340 | quote_path_relative(name + tree_name_len, opt->prefix, &pathbuf); | |
341 | strbuf_insert(&pathbuf, 0, name, tree_name_len); | |
342 | free(name); | |
343 | } | |
344 | ||
5b594f45 | 345 | #ifndef NO_PTHREADS |
89f09dd3 | 346 | if (num_threads) { |
1c41c82b | 347 | add_work(opt, GREP_SOURCE_OID, pathbuf.buf, path, oid); |
8f24a632 | 348 | strbuf_release(&pathbuf); |
5b594f45 FK |
349 | return 0; |
350 | } else | |
351 | #endif | |
352 | { | |
8f24a632 | 353 | struct grep_source gs; |
5b594f45 | 354 | int hit; |
5010cb5f | 355 | |
1c41c82b | 356 | grep_source_init(&gs, GREP_SOURCE_OID, pathbuf.buf, path, oid); |
8f24a632 JK |
357 | strbuf_release(&pathbuf); |
358 | hit = grep_source(opt, &gs); | |
dc49cd76 | 359 | |
8f24a632 JK |
360 | grep_source_clear(&gs); |
361 | return hit; | |
5010cb5f | 362 | } |
5b594f45 FK |
363 | } |
364 | ||
365 | static int grep_file(struct grep_opt *opt, const char *filename) | |
366 | { | |
367 | struct strbuf buf = STRBUF_INIT; | |
5b594f45 | 368 | |
be80a239 BW |
369 | if (super_prefix) |
370 | strbuf_addstr(&buf, super_prefix); | |
371 | strbuf_addstr(&buf, filename); | |
372 | ||
0281e487 | 373 | if (opt->relative && opt->prefix_length) { |
be80a239 BW |
374 | char *name = strbuf_detach(&buf, NULL); |
375 | quote_path_relative(name, opt->prefix, &buf); | |
376 | free(name); | |
0281e487 | 377 | } |
5b594f45 FK |
378 | |
379 | #ifndef NO_PTHREADS | |
89f09dd3 | 380 | if (num_threads) { |
55c61688 | 381 | add_work(opt, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 | 382 | strbuf_release(&buf); |
5b594f45 FK |
383 | return 0; |
384 | } else | |
385 | #endif | |
386 | { | |
8f24a632 | 387 | struct grep_source gs; |
5b594f45 | 388 | int hit; |
5b594f45 | 389 | |
55c61688 | 390 | grep_source_init(&gs, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 JK |
391 | strbuf_release(&buf); |
392 | hit = grep_source(opt, &gs); | |
393 | ||
394 | grep_source_clear(&gs); | |
5b594f45 FK |
395 | return hit; |
396 | } | |
5010cb5f JH |
397 | } |
398 | ||
678e484b JS |
399 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
400 | { | |
401 | struct string_list *path_list = opt->output_priv; | |
402 | ||
403 | if (len == 1 && *(const char *)data == '\0') | |
404 | return; | |
0c72cead | 405 | string_list_append(path_list, xstrndup(data, len)); |
678e484b JS |
406 | } |
407 | ||
408 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
409 | { | |
410 | struct string_list *path_list = opt->output_priv; | |
850d2fec | 411 | struct child_process child = CHILD_PROCESS_INIT; |
678e484b JS |
412 | int i, status; |
413 | ||
414 | for (i = 0; i < path_list->nr; i++) | |
850d2fec JK |
415 | argv_array_push(&child.args, path_list->items[i].string); |
416 | child.dir = prefix; | |
417 | child.use_shell = 1; | |
678e484b | 418 | |
850d2fec | 419 | status = run_command(&child); |
678e484b JS |
420 | if (status) |
421 | exit(status); | |
678e484b JS |
422 | } |
423 | ||
0281e487 | 424 | static void compile_submodule_options(const struct grep_opt *opt, |
be80a239 | 425 | const char **argv, |
0281e487 BW |
426 | int cached, int untracked, |
427 | int opt_exclude, int use_index, | |
428 | int pattern_type_arg) | |
429 | { | |
430 | struct grep_pat *pattern; | |
0281e487 BW |
431 | |
432 | if (recurse_submodules) | |
433 | argv_array_push(&submodule_options, "--recurse-submodules"); | |
434 | ||
435 | if (cached) | |
436 | argv_array_push(&submodule_options, "--cached"); | |
437 | if (!use_index) | |
438 | argv_array_push(&submodule_options, "--no-index"); | |
439 | if (untracked) | |
440 | argv_array_push(&submodule_options, "--untracked"); | |
441 | if (opt_exclude > 0) | |
442 | argv_array_push(&submodule_options, "--exclude-standard"); | |
443 | ||
444 | if (opt->invert) | |
445 | argv_array_push(&submodule_options, "-v"); | |
446 | if (opt->ignore_case) | |
447 | argv_array_push(&submodule_options, "-i"); | |
448 | if (opt->word_regexp) | |
449 | argv_array_push(&submodule_options, "-w"); | |
450 | switch (opt->binary) { | |
451 | case GREP_BINARY_NOMATCH: | |
452 | argv_array_push(&submodule_options, "-I"); | |
453 | break; | |
454 | case GREP_BINARY_TEXT: | |
455 | argv_array_push(&submodule_options, "-a"); | |
456 | break; | |
457 | default: | |
458 | break; | |
459 | } | |
460 | if (opt->allow_textconv) | |
461 | argv_array_push(&submodule_options, "--textconv"); | |
462 | if (opt->max_depth != -1) | |
463 | argv_array_pushf(&submodule_options, "--max-depth=%d", | |
464 | opt->max_depth); | |
465 | if (opt->linenum) | |
466 | argv_array_push(&submodule_options, "-n"); | |
467 | if (!opt->pathname) | |
468 | argv_array_push(&submodule_options, "-h"); | |
469 | if (!opt->relative) | |
470 | argv_array_push(&submodule_options, "--full-name"); | |
471 | if (opt->name_only) | |
472 | argv_array_push(&submodule_options, "-l"); | |
473 | if (opt->unmatch_name_only) | |
474 | argv_array_push(&submodule_options, "-L"); | |
475 | if (opt->null_following_name) | |
476 | argv_array_push(&submodule_options, "-z"); | |
477 | if (opt->count) | |
478 | argv_array_push(&submodule_options, "-c"); | |
479 | if (opt->file_break) | |
480 | argv_array_push(&submodule_options, "--break"); | |
481 | if (opt->heading) | |
482 | argv_array_push(&submodule_options, "--heading"); | |
483 | if (opt->pre_context) | |
484 | argv_array_pushf(&submodule_options, "--before-context=%d", | |
485 | opt->pre_context); | |
486 | if (opt->post_context) | |
487 | argv_array_pushf(&submodule_options, "--after-context=%d", | |
488 | opt->post_context); | |
489 | if (opt->funcname) | |
490 | argv_array_push(&submodule_options, "-p"); | |
491 | if (opt->funcbody) | |
492 | argv_array_push(&submodule_options, "-W"); | |
493 | if (opt->all_match) | |
494 | argv_array_push(&submodule_options, "--all-match"); | |
495 | if (opt->debug) | |
496 | argv_array_push(&submodule_options, "--debug"); | |
497 | if (opt->status_only) | |
498 | argv_array_push(&submodule_options, "-q"); | |
499 | ||
500 | switch (pattern_type_arg) { | |
501 | case GREP_PATTERN_TYPE_BRE: | |
502 | argv_array_push(&submodule_options, "-G"); | |
503 | break; | |
504 | case GREP_PATTERN_TYPE_ERE: | |
505 | argv_array_push(&submodule_options, "-E"); | |
506 | break; | |
507 | case GREP_PATTERN_TYPE_FIXED: | |
508 | argv_array_push(&submodule_options, "-F"); | |
509 | break; | |
510 | case GREP_PATTERN_TYPE_PCRE: | |
511 | argv_array_push(&submodule_options, "-P"); | |
512 | break; | |
513 | case GREP_PATTERN_TYPE_UNSPECIFIED: | |
514 | break; | |
374166cb ÆAB |
515 | default: |
516 | die("BUG: Added a new grep pattern type without updating switch statement"); | |
0281e487 BW |
517 | } |
518 | ||
519 | for (pattern = opt->pattern_list; pattern != NULL; | |
520 | pattern = pattern->next) { | |
521 | switch (pattern->token) { | |
522 | case GREP_PATTERN: | |
523 | argv_array_pushf(&submodule_options, "-e%s", | |
524 | pattern->pattern); | |
525 | break; | |
526 | case GREP_AND: | |
527 | case GREP_OPEN_PAREN: | |
528 | case GREP_CLOSE_PAREN: | |
529 | case GREP_NOT: | |
530 | case GREP_OR: | |
531 | argv_array_push(&submodule_options, pattern->pattern); | |
532 | break; | |
533 | /* BODY and HEAD are not used by git-grep */ | |
534 | case GREP_PATTERN_BODY: | |
535 | case GREP_PATTERN_HEAD: | |
536 | break; | |
537 | } | |
538 | } | |
539 | ||
540 | /* | |
541 | * Limit number of threads for child process to use. | |
542 | * This is to prevent potential fork-bomb behavior of git-grep as each | |
543 | * submodule process has its own thread pool. | |
544 | */ | |
545 | argv_array_pushf(&submodule_options, "--threads=%d", | |
42c78a21 | 546 | DIV_ROUND_UP(num_threads, 2)); |
0281e487 BW |
547 | |
548 | /* Add Pathspecs */ | |
549 | argv_array_push(&submodule_options, "--"); | |
be80a239 BW |
550 | for (; *argv; argv++) |
551 | argv_array_push(&submodule_options, *argv); | |
0281e487 BW |
552 | } |
553 | ||
554 | /* | |
555 | * Launch child process to grep contents of a submodule | |
556 | */ | |
557 | static int grep_submodule_launch(struct grep_opt *opt, | |
558 | const struct grep_source *gs) | |
559 | { | |
560 | struct child_process cp = CHILD_PROCESS_INIT; | |
561 | int status, i; | |
74ed4371 BW |
562 | const char *end_of_base; |
563 | const char *name; | |
2225e1ea | 564 | struct strbuf child_output = STRBUF_INIT; |
0281e487 | 565 | |
74ed4371 BW |
566 | end_of_base = strchr(gs->name, ':'); |
567 | if (gs->identifier && end_of_base) | |
568 | name = end_of_base + 1; | |
569 | else | |
570 | name = gs->name; | |
571 | ||
0281e487 | 572 | prepare_submodule_repo_env(&cp.env_array); |
e6fac7f3 | 573 | argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT); |
0281e487 | 574 | |
be80a239 BW |
575 | if (opt->relative && opt->prefix_length) |
576 | argv_array_pushf(&cp.env_array, "%s=%s", | |
577 | GIT_TOPLEVEL_PREFIX_ENVIRONMENT, | |
578 | opt->prefix); | |
579 | ||
0281e487 BW |
580 | /* Add super prefix */ |
581 | argv_array_pushf(&cp.args, "--super-prefix=%s%s/", | |
582 | super_prefix ? super_prefix : "", | |
74ed4371 | 583 | name); |
0281e487 BW |
584 | argv_array_push(&cp.args, "grep"); |
585 | ||
74ed4371 BW |
586 | /* |
587 | * Add basename of parent project | |
588 | * When performing grep on a tree object the filename is prefixed | |
589 | * with the object's name: 'tree-name:filename'. In order to | |
590 | * provide uniformity of output we want to pass the name of the | |
591 | * parent project's object name to the submodule so the submodule can | |
1c41c82b | 592 | * prefix its output with the parent's name and not its own OID. |
74ed4371 BW |
593 | */ |
594 | if (gs->identifier && end_of_base) | |
595 | argv_array_pushf(&cp.args, "--parent-basename=%.*s", | |
596 | (int) (end_of_base - gs->name), | |
597 | gs->name); | |
598 | ||
0281e487 | 599 | /* Add options */ |
74ed4371 BW |
600 | for (i = 0; i < submodule_options.argc; i++) { |
601 | /* | |
602 | * If there is a tree identifier for the submodule, add the | |
603 | * rev after adding the submodule options but before the | |
604 | * pathspecs. To do this we listen for the '--' and insert the | |
1c41c82b | 605 | * oid before pushing the '--' onto the child process argv |
74ed4371 BW |
606 | * array. |
607 | */ | |
608 | if (gs->identifier && | |
609 | !strcmp("--", submodule_options.argv[i])) { | |
1c41c82b | 610 | argv_array_push(&cp.args, oid_to_hex(gs->identifier)); |
74ed4371 BW |
611 | } |
612 | ||
0281e487 | 613 | argv_array_push(&cp.args, submodule_options.argv[i]); |
74ed4371 | 614 | } |
0281e487 BW |
615 | |
616 | cp.git_cmd = 1; | |
617 | cp.dir = gs->path; | |
618 | ||
619 | /* | |
620 | * Capture output to output buffer and check the return code from the | |
621 | * child process. A '0' indicates a hit, a '1' indicates no hit and | |
622 | * anything else is an error. | |
623 | */ | |
2225e1ea | 624 | status = capture_command(&cp, &child_output, 0); |
0281e487 BW |
625 | if (status && (status != 1)) { |
626 | /* flush the buffer */ | |
2225e1ea | 627 | write_or_die(1, child_output.buf, child_output.len); |
0281e487 BW |
628 | die("process for submodule '%s' failed with exit code: %d", |
629 | gs->name, status); | |
630 | } | |
631 | ||
2225e1ea BW |
632 | opt->output(opt, child_output.buf, child_output.len); |
633 | strbuf_release(&child_output); | |
0281e487 BW |
634 | /* invert the return code to make a hit equal to 1 */ |
635 | return !status; | |
636 | } | |
637 | ||
638 | /* | |
639 | * Prep grep structures for a submodule grep | |
1c41c82b | 640 | * oid: the oid of the submodule or NULL if using the working tree |
0281e487 BW |
641 | * filename: name of the submodule including tree name of parent |
642 | * path: location of the submodule | |
643 | */ | |
1c41c82b | 644 | static int grep_submodule(struct grep_opt *opt, const struct object_id *oid, |
0281e487 BW |
645 | const char *filename, const char *path) |
646 | { | |
627d9342 | 647 | if (!is_submodule_active(the_repository, path)) |
0281e487 | 648 | return 0; |
15cdc647 | 649 | if (!is_submodule_populated_gently(path, NULL)) { |
e6fac7f3 | 650 | /* |
64127575 | 651 | * If searching history, check for the presence of the |
e6fac7f3 BW |
652 | * submodule's gitdir before skipping the submodule. |
653 | */ | |
1c41c82b | 654 | if (oid) { |
e6fac7f3 BW |
655 | const struct submodule *sub = |
656 | submodule_from_path(null_sha1, path); | |
657 | if (sub) | |
658 | path = git_path("modules/%s", sub->name); | |
659 | ||
660 | if (!(is_directory(path) && is_git_directory(path))) | |
661 | return 0; | |
662 | } else { | |
663 | return 0; | |
664 | } | |
665 | } | |
0281e487 BW |
666 | |
667 | #ifndef NO_PTHREADS | |
668 | if (num_threads) { | |
1c41c82b | 669 | add_work(opt, GREP_SOURCE_SUBMODULE, filename, path, oid); |
0281e487 BW |
670 | return 0; |
671 | } else | |
672 | #endif | |
673 | { | |
2225e1ea | 674 | struct grep_source gs; |
0281e487 BW |
675 | int hit; |
676 | ||
2225e1ea | 677 | grep_source_init(&gs, GREP_SOURCE_SUBMODULE, |
1c41c82b | 678 | filename, path, oid); |
2225e1ea | 679 | hit = grep_submodule_launch(opt, &gs); |
0281e487 | 680 | |
2225e1ea | 681 | grep_source_clear(&gs); |
0281e487 BW |
682 | return hit; |
683 | } | |
684 | } | |
685 | ||
686 | static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, | |
687 | int cached) | |
5010cb5f JH |
688 | { |
689 | int hit = 0; | |
690 | int nr; | |
0281e487 BW |
691 | struct strbuf name = STRBUF_INIT; |
692 | int name_base_len = 0; | |
693 | if (super_prefix) { | |
694 | name_base_len = strlen(super_prefix); | |
695 | strbuf_addstr(&name, super_prefix); | |
696 | } | |
697 | ||
5010cb5f JH |
698 | read_cache(); |
699 | ||
700 | for (nr = 0; nr < active_nr; nr++) { | |
9c5e6c80 | 701 | const struct cache_entry *ce = active_cache[nr]; |
0281e487 BW |
702 | strbuf_setlen(&name, name_base_len); |
703 | strbuf_addstr(&name, ce->name); | |
704 | ||
705 | if (S_ISREG(ce->ce_mode) && | |
706 | match_pathspec(pathspec, name.buf, name.len, 0, NULL, | |
707 | S_ISDIR(ce->ce_mode) || | |
708 | S_ISGITLINK(ce->ce_mode))) { | |
709 | /* | |
710 | * If CE_VALID is on, we assume worktree file and its | |
711 | * cache entry are identical, even if worktree file has | |
712 | * been modified, so use cache version instead | |
713 | */ | |
714 | if (cached || (ce->ce_flags & CE_VALID) || | |
715 | ce_skip_worktree(ce)) { | |
716 | if (ce_stage(ce) || ce_intent_to_add(ce)) | |
717 | continue; | |
1db11086 | 718 | hit |= grep_oid(opt, &ce->oid, ce->name, |
0281e487 BW |
719 | 0, ce->name); |
720 | } else { | |
721 | hit |= grep_file(opt, ce->name); | |
722 | } | |
723 | } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && | |
724 | submodule_path_match(pathspec, name.buf, NULL)) { | |
725 | hit |= grep_submodule(opt, NULL, ce->name, ce->name); | |
726 | } else { | |
5010cb5f | 727 | continue; |
36f2587f | 728 | } |
0281e487 | 729 | |
36f2587f JH |
730 | if (ce_stage(ce)) { |
731 | do { | |
732 | nr++; | |
733 | } while (nr < active_nr && | |
734 | !strcmp(ce->name, active_cache[nr]->name)); | |
735 | nr--; /* compensate for loop control */ | |
736 | } | |
c8610a2e JH |
737 | if (hit && opt->status_only) |
738 | break; | |
5010cb5f | 739 | } |
0281e487 BW |
740 | |
741 | strbuf_release(&name); | |
5010cb5f JH |
742 | return hit; |
743 | } | |
744 | ||
f34bbc15 | 745 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, |
55c61688 NTND |
746 | struct tree_desc *tree, struct strbuf *base, int tn_len, |
747 | int check_attr) | |
5010cb5f | 748 | { |
d688cf07 NTND |
749 | int hit = 0; |
750 | enum interesting match = entry_not_interesting; | |
4c068a98 | 751 | struct name_entry entry; |
e5e062b6 | 752 | int old_baselen = base->len; |
74ed4371 BW |
753 | struct strbuf name = STRBUF_INIT; |
754 | int name_base_len = 0; | |
755 | if (super_prefix) { | |
756 | strbuf_addstr(&name, super_prefix); | |
757 | name_base_len = name.len; | |
758 | } | |
5010cb5f | 759 | |
4c068a98 | 760 | while (tree_entry(tree, &entry)) { |
0de16337 | 761 | int te_len = tree_entry_len(&entry); |
e5e062b6 | 762 | |
d688cf07 | 763 | if (match != all_entries_interesting) { |
74ed4371 BW |
764 | strbuf_addstr(&name, base->buf + tn_len); |
765 | match = tree_entry_interesting(&entry, &name, | |
766 | 0, pathspec); | |
767 | strbuf_setlen(&name, name_base_len); | |
768 | ||
d688cf07 | 769 | if (match == all_entries_not_interesting) |
97d0b74a | 770 | break; |
d688cf07 | 771 | if (match == entry_not_interesting) |
1376e507 NTND |
772 | continue; |
773 | } | |
5010cb5f | 774 | |
1376e507 | 775 | strbuf_add(base, entry.path, te_len); |
e0eb889f | 776 | |
1376e507 | 777 | if (S_ISREG(entry.mode)) { |
1db11086 | 778 | hit |= grep_oid(opt, entry.oid, base->buf, tn_len, |
55c61688 | 779 | check_attr ? base->buf + tn_len : NULL); |
74ed4371 | 780 | } else if (S_ISDIR(entry.mode)) { |
21666f1a | 781 | enum object_type type; |
5010cb5f JH |
782 | struct tree_desc sub; |
783 | void *data; | |
6fda5e51 LT |
784 | unsigned long size; |
785 | ||
1db11086 | 786 | data = lock_and_read_oid_file(entry.oid, &type, &size); |
5010cb5f | 787 | if (!data) |
2fc5f9f1 | 788 | die(_("unable to read tree (%s)"), |
7d924c91 | 789 | oid_to_hex(entry.oid)); |
1376e507 NTND |
790 | |
791 | strbuf_addch(base, '/'); | |
6fda5e51 | 792 | init_tree_desc(&sub, data, size); |
55c61688 NTND |
793 | hit |= grep_tree(opt, pathspec, &sub, base, tn_len, |
794 | check_attr); | |
5010cb5f | 795 | free(data); |
74ed4371 | 796 | } else if (recurse_submodules && S_ISGITLINK(entry.mode)) { |
1c41c82b | 797 | hit |= grep_submodule(opt, entry.oid, base->buf, |
74ed4371 | 798 | base->buf + tn_len); |
5010cb5f | 799 | } |
74ed4371 | 800 | |
e5e062b6 NTND |
801 | strbuf_setlen(base, old_baselen); |
802 | ||
c8610a2e JH |
803 | if (hit && opt->status_only) |
804 | break; | |
5010cb5f | 805 | } |
74ed4371 BW |
806 | |
807 | strbuf_release(&name); | |
5010cb5f JH |
808 | return hit; |
809 | } | |
810 | ||
f34bbc15 | 811 | static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, |
9e0c3c4f | 812 | struct object *obj, const char *name, const char *path) |
5010cb5f | 813 | { |
1974632c | 814 | if (obj->type == OBJ_BLOB) |
1db11086 | 815 | return grep_oid(opt, &obj->oid, name, 0, path); |
1974632c | 816 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
817 | struct tree_desc tree; |
818 | void *data; | |
6fda5e51 | 819 | unsigned long size; |
e5e062b6 NTND |
820 | struct strbuf base; |
821 | int hit, len; | |
822 | ||
b3aeb285 | 823 | grep_read_lock(); |
f2fd0760 | 824 | data = read_object_with_reference(obj->oid.hash, tree_type, |
6fda5e51 | 825 | &size, NULL); |
b3aeb285 | 826 | grep_read_unlock(); |
8cb5775b | 827 | |
5010cb5f | 828 | if (!data) |
f2fd0760 | 829 | die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); |
e5e062b6 | 830 | |
74ed4371 BW |
831 | /* Use parent's name as base when recursing submodules */ |
832 | if (recurse_submodules && parent_basename) | |
833 | name = parent_basename; | |
834 | ||
e5e062b6 NTND |
835 | len = name ? strlen(name) : 0; |
836 | strbuf_init(&base, PATH_MAX + len + 1); | |
837 | if (len) { | |
838 | strbuf_add(&base, name, len); | |
839 | strbuf_addch(&base, ':'); | |
840 | } | |
6fda5e51 | 841 | init_tree_desc(&tree, data, size); |
55c61688 NTND |
842 | hit = grep_tree(opt, pathspec, &tree, &base, base.len, |
843 | obj->type == OBJ_COMMIT); | |
e5e062b6 | 844 | strbuf_release(&base); |
5010cb5f JH |
845 | free(data); |
846 | return hit; | |
847 | } | |
2fc5f9f1 | 848 | die(_("unable to grep from object of type %s"), typename(obj->type)); |
5010cb5f JH |
849 | } |
850 | ||
f34bbc15 | 851 | static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, |
30d00c39 JN |
852 | const struct object_array *list) |
853 | { | |
854 | unsigned int i; | |
855 | int hit = 0; | |
856 | const unsigned int nr = list->nr; | |
857 | ||
858 | for (i = 0; i < nr; i++) { | |
859 | struct object *real_obj; | |
860 | real_obj = deref_tag(list->objects[i].item, NULL, 0); | |
74ed4371 BW |
861 | |
862 | /* load the gitmodules file for this rev */ | |
863 | if (recurse_submodules) { | |
864 | submodule_free(); | |
865 | gitmodules_config_sha1(real_obj->oid.hash); | |
866 | } | |
9e0c3c4f | 867 | if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { |
30d00c39 JN |
868 | hit = 1; |
869 | if (opt->status_only) | |
870 | break; | |
871 | } | |
872 | } | |
873 | return hit; | |
874 | } | |
875 | ||
dbfae86a | 876 | static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, |
85975c0c | 877 | int exc_std, int use_index) |
59332d13 JH |
878 | { |
879 | struct dir_struct dir; | |
880 | int i, hit = 0; | |
881 | ||
882 | memset(&dir, 0, sizeof(dir)); | |
85975c0c JK |
883 | if (!use_index) |
884 | dir.flags |= DIR_NO_GITLINKS; | |
0a93fb8a JH |
885 | if (exc_std) |
886 | setup_standard_excludes(&dir); | |
59332d13 | 887 | |
0d32c183 | 888 | fill_directory(&dir, &the_index, pathspec); |
59332d13 | 889 | for (i = 0; i < dir.nr; i++) { |
ebb32893 | 890 | if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) |
9d8b831b | 891 | continue; |
59332d13 JH |
892 | hit |= grep_file(opt, dir.entries[i]->name); |
893 | if (hit && opt->status_only) | |
894 | break; | |
895 | } | |
59332d13 JH |
896 | return hit; |
897 | } | |
898 | ||
ff3c7f9a RS |
899 | static int context_callback(const struct option *opt, const char *arg, |
900 | int unset) | |
3e230fa1 RS |
901 | { |
902 | struct grep_opt *grep_opt = opt->value; | |
903 | int value; | |
904 | const char *endp; | |
905 | ||
906 | if (unset) { | |
907 | grep_opt->pre_context = grep_opt->post_context = 0; | |
908 | return 0; | |
909 | } | |
910 | value = strtol(arg, (char **)&endp, 10); | |
911 | if (*endp) { | |
2fc5f9f1 | 912 | return error(_("switch `%c' expects a numerical value"), |
3e230fa1 RS |
913 | opt->short_name); |
914 | } | |
915 | grep_opt->pre_context = grep_opt->post_context = value; | |
916 | return 0; | |
917 | } | |
918 | ||
ff3c7f9a | 919 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
920 | { |
921 | struct grep_opt *grep_opt = opt->value; | |
c41dd2fd | 922 | int from_stdin = !strcmp(arg, "-"); |
3e230fa1 RS |
923 | FILE *patterns; |
924 | int lno = 0; | |
cfe370c6 | 925 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 | 926 | |
c41dd2fd | 927 | patterns = from_stdin ? stdin : fopen(arg, "r"); |
3e230fa1 | 928 | if (!patterns) |
2fc5f9f1 | 929 | die_errno(_("cannot open '%s'"), arg); |
a5518431 | 930 | while (strbuf_getline(&sb, patterns) == 0) { |
3e230fa1 RS |
931 | /* ignore empty line like grep does */ |
932 | if (sb.len == 0) | |
933 | continue; | |
ed40a095 | 934 | |
ec830611 RS |
935 | append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno, |
936 | GREP_PATTERN); | |
3e230fa1 | 937 | } |
c41dd2fd RS |
938 | if (!from_stdin) |
939 | fclose(patterns); | |
3e230fa1 RS |
940 | strbuf_release(&sb); |
941 | return 0; | |
942 | } | |
943 | ||
ff3c7f9a | 944 | static int not_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
945 | { |
946 | struct grep_opt *grep_opt = opt->value; | |
947 | append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT); | |
948 | return 0; | |
949 | } | |
950 | ||
ff3c7f9a | 951 | static int and_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
952 | { |
953 | struct grep_opt *grep_opt = opt->value; | |
954 | append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND); | |
955 | return 0; | |
956 | } | |
957 | ||
ff3c7f9a | 958 | static int open_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
959 | { |
960 | struct grep_opt *grep_opt = opt->value; | |
961 | append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN); | |
962 | return 0; | |
963 | } | |
964 | ||
ff3c7f9a | 965 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
966 | { |
967 | struct grep_opt *grep_opt = opt->value; | |
968 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); | |
969 | return 0; | |
970 | } | |
971 | ||
ff3c7f9a RS |
972 | static int pattern_callback(const struct option *opt, const char *arg, |
973 | int unset) | |
3e230fa1 RS |
974 | { |
975 | struct grep_opt *grep_opt = opt->value; | |
976 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); | |
977 | return 0; | |
978 | } | |
5010cb5f | 979 | |
a633fca0 | 980 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 981 | { |
5010cb5f | 982 | int hit = 0; |
0a93fb8a | 983 | int cached = 0, untracked = 0, opt_exclude = -1; |
5acd64ed | 984 | int seen_dashdash = 0; |
bbc09c22 | 985 | int external_grep_allowed__ignored; |
0af88c15 | 986 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 987 | struct grep_opt opt; |
3cd47459 | 988 | struct object_array list = OBJECT_ARRAY_INIT; |
f34bbc15 | 989 | struct pathspec pathspec; |
183113a5 | 990 | struct string_list path_list = STRING_LIST_INIT_NODUP; |
5acd64ed | 991 | int i; |
3e230fa1 | 992 | int dummy; |
ff38d1a9 | 993 | int use_index = 1; |
84befcd0 | 994 | int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; |
131f3c96 | 995 | int allow_revs; |
cca2c172 | 996 | |
3e230fa1 | 997 | struct option options[] = { |
d5d09d47 | 998 | OPT_BOOL(0, "cached", &cached, |
4b407bc5 | 999 | N_("search in index instead of in the work tree")), |
cbb08c2e | 1000 | OPT_NEGBIT(0, "no-index", &use_index, |
f63cf8c9 | 1001 | N_("find in contents not managed by git"), 1), |
d5d09d47 | 1002 | OPT_BOOL(0, "untracked", &untracked, |
4b407bc5 | 1003 | N_("search in both tracked and untracked files")), |
0a93fb8a | 1004 | OPT_SET_INT(0, "exclude-standard", &opt_exclude, |
77fdb8a8 | 1005 | N_("ignore files specified via '.gitignore'"), 1), |
0281e487 | 1006 | OPT_BOOL(0, "recurse-submodules", &recurse_submodules, |
4fb1c6aa | 1007 | N_("recursively search in each submodule")), |
74ed4371 BW |
1008 | OPT_STRING(0, "parent-basename", &parent_basename, |
1009 | N_("basename"), | |
1010 | N_("prepend parent project's basename to output")), | |
3e230fa1 | 1011 | OPT_GROUP(""), |
d5d09d47 | 1012 | OPT_BOOL('v', "invert-match", &opt.invert, |
4b407bc5 | 1013 | N_("show non-matching lines")), |
d5d09d47 | 1014 | OPT_BOOL('i', "ignore-case", &opt.ignore_case, |
4b407bc5 | 1015 | N_("case insensitive matching")), |
d5d09d47 | 1016 | OPT_BOOL('w', "word-regexp", &opt.word_regexp, |
4b407bc5 | 1017 | N_("match patterns only at word boundaries")), |
3e230fa1 | 1018 | OPT_SET_INT('a', "text", &opt.binary, |
4b407bc5 | 1019 | N_("process binary files as text"), GREP_BINARY_TEXT), |
3e230fa1 | 1020 | OPT_SET_INT('I', NULL, &opt.binary, |
4b407bc5 | 1021 | N_("don't match patterns in binary files"), |
3e230fa1 | 1022 | GREP_BINARY_NOMATCH), |
335ec3bf JK |
1023 | OPT_BOOL(0, "textconv", &opt.allow_textconv, |
1024 | N_("process binary files with textconv filters")), | |
4b407bc5 NTND |
1025 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"), |
1026 | N_("descend at most <depth> levels"), PARSE_OPT_NONEG, | |
a91f453f | 1027 | NULL, 1 }, |
3e230fa1 | 1028 | OPT_GROUP(""), |
84befcd0 | 1029 | OPT_SET_INT('E', "extended-regexp", &pattern_type_arg, |
4b407bc5 | 1030 | N_("use extended POSIX regular expressions"), |
84befcd0 S |
1031 | GREP_PATTERN_TYPE_ERE), |
1032 | OPT_SET_INT('G', "basic-regexp", &pattern_type_arg, | |
4b407bc5 | 1033 | N_("use basic POSIX regular expressions (default)"), |
84befcd0 S |
1034 | GREP_PATTERN_TYPE_BRE), |
1035 | OPT_SET_INT('F', "fixed-strings", &pattern_type_arg, | |
4b407bc5 | 1036 | N_("interpret patterns as fixed strings"), |
84befcd0 S |
1037 | GREP_PATTERN_TYPE_FIXED), |
1038 | OPT_SET_INT('P', "perl-regexp", &pattern_type_arg, | |
4b407bc5 | 1039 | N_("use Perl-compatible regular expressions"), |
84befcd0 | 1040 | GREP_PATTERN_TYPE_PCRE), |
3e230fa1 | 1041 | OPT_GROUP(""), |
d5d09d47 | 1042 | OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), |
4b407bc5 NTND |
1043 | OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), |
1044 | OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), | |
3e230fa1 | 1045 | OPT_NEGBIT(0, "full-name", &opt.relative, |
4b407bc5 | 1046 | N_("show filenames relative to top directory"), 1), |
d5d09d47 | 1047 | OPT_BOOL('l', "files-with-matches", &opt.name_only, |
4b407bc5 | 1048 | N_("show only filenames instead of matching lines")), |
d5d09d47 | 1049 | OPT_BOOL(0, "name-only", &opt.name_only, |
4b407bc5 | 1050 | N_("synonym for --files-with-matches")), |
d5d09d47 | 1051 | OPT_BOOL('L', "files-without-match", |
3e230fa1 | 1052 | &opt.unmatch_name_only, |
4b407bc5 | 1053 | N_("show only the names of files without match")), |
d5d09d47 | 1054 | OPT_BOOL('z', "null", &opt.null_following_name, |
4b407bc5 | 1055 | N_("print NUL after filenames")), |
d5d09d47 | 1056 | OPT_BOOL('c', "count", &opt.count, |
4b407bc5 NTND |
1057 | N_("show the number of matches instead of matching lines")), |
1058 | OPT__COLOR(&opt.color, N_("highlight matches")), | |
d5d09d47 | 1059 | OPT_BOOL(0, "break", &opt.file_break, |
4b407bc5 | 1060 | N_("print empty line between matches from different files")), |
d5d09d47 | 1061 | OPT_BOOL(0, "heading", &opt.heading, |
4b407bc5 | 1062 | N_("show filename only once above matches from same file")), |
3e230fa1 | 1063 | OPT_GROUP(""), |
4b407bc5 NTND |
1064 | OPT_CALLBACK('C', "context", &opt, N_("n"), |
1065 | N_("show <n> context lines before and after matches"), | |
3e230fa1 | 1066 | context_callback), |
317f63c2 | 1067 | OPT_INTEGER('B', "before-context", &opt.pre_context, |
4b407bc5 | 1068 | N_("show <n> context lines before matches")), |
317f63c2 | 1069 | OPT_INTEGER('A', "after-context", &opt.post_context, |
4b407bc5 | 1070 | N_("show <n> context lines after matches")), |
89f09dd3 VL |
1071 | OPT_INTEGER(0, "threads", &num_threads, |
1072 | N_("use <n> worker threads")), | |
4b407bc5 | 1073 | OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"), |
3e230fa1 | 1074 | context_callback), |
d5d09d47 | 1075 | OPT_BOOL('p', "show-function", &opt.funcname, |
4b407bc5 | 1076 | N_("show a line with the function name before matches")), |
d5d09d47 | 1077 | OPT_BOOL('W', "function-context", &opt.funcbody, |
4b407bc5 | 1078 | N_("show the surrounding function")), |
3e230fa1 | 1079 | OPT_GROUP(""), |
4b407bc5 NTND |
1080 | OPT_CALLBACK('f', NULL, &opt, N_("file"), |
1081 | N_("read patterns from file"), file_callback), | |
1082 | { OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"), | |
1083 | N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback }, | |
3e230fa1 | 1084 | { OPTION_CALLBACK, 0, "and", &opt, NULL, |
4b407bc5 | 1085 | N_("combine patterns specified with -e"), |
3e230fa1 | 1086 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, |
d5d09d47 | 1087 | OPT_BOOL(0, "or", &dummy, ""), |
3e230fa1 RS |
1088 | { OPTION_CALLBACK, 0, "not", &opt, NULL, "", |
1089 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, | |
1090 | { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", | |
1091 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
1092 | open_callback }, | |
1093 | { OPTION_CALLBACK, ')', NULL, &opt, NULL, "", | |
1094 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
1095 | close_callback }, | |
d52ee6e6 | 1096 | OPT__QUIET(&opt.status_only, |
4b407bc5 | 1097 | N_("indicate hit with exit status without output")), |
d5d09d47 | 1098 | OPT_BOOL(0, "all-match", &opt.all_match, |
4b407bc5 | 1099 | N_("show only matches from files that match all patterns")), |
17bf35a3 | 1100 | { OPTION_SET_INT, 0, "debug", &opt.debug, NULL, |
3d7535e4 | 1101 | N_("show parse tree for grep expression"), |
17bf35a3 | 1102 | PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 }, |
3e230fa1 | 1103 | OPT_GROUP(""), |
0af88c15 | 1104 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
4b407bc5 | 1105 | N_("pager"), N_("show matching files in the pager"), |
0af88c15 | 1106 | PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, |
d5d09d47 SB |
1107 | OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored, |
1108 | N_("allow calling of grep(1) (ignored by this build)")), | |
3e230fa1 RS |
1109 | OPT_END() |
1110 | }; | |
5010cb5f | 1111 | |
15fabd1b JH |
1112 | init_grep_defaults(); |
1113 | git_config(grep_cmd_config, NULL); | |
1114 | grep_init(&opt, prefix); | |
0281e487 | 1115 | super_prefix = get_super_prefix(); |
7e8f59d5 | 1116 | |
5010cb5f | 1117 | /* |
5acd64ed JH |
1118 | * If there is no -- then the paths must exist in the working |
1119 | * tree. If there is no explicit pattern specified with -e or | |
1120 | * -f, we take the first unrecognized non option to be the | |
1121 | * pattern, but then what follows it must be zero or more | |
1122 | * valid refs up to the -- (if exists), and then existing | |
1123 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 1124 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 1125 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 1126 | */ |
37782920 | 1127 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 | 1128 | PARSE_OPT_KEEP_DASHDASH | |
44415499 | 1129 | PARSE_OPT_STOP_AT_NON_OPTION); |
c5c31d33 | 1130 | grep_commit_pattern_type(pattern_type_arg, &opt); |
3e230fa1 | 1131 | |
ecd9ba61 TG |
1132 | if (use_index && !startup_info->have_repository) { |
1133 | int fallback = 0; | |
1134 | git_config_get_bool("grep.fallbacktonoindex", &fallback); | |
1135 | if (fallback) | |
1136 | use_index = 0; | |
1137 | else | |
1138 | /* die the same way as if we did it at the beginning */ | |
1139 | setup_git_directory(); | |
1140 | } | |
59332d13 | 1141 | |
1123c67c JK |
1142 | /* |
1143 | * skip a -- separator; we know it cannot be | |
1144 | * separating revisions from pathnames if | |
1145 | * we haven't even had any patterns yet | |
1146 | */ | |
1147 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
1148 | argv++; | |
1149 | argc--; | |
1150 | } | |
1151 | ||
3e230fa1 RS |
1152 | /* First unrecognized non-option token */ |
1153 | if (argc > 0 && !opt.pattern_list) { | |
1154 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
1155 | GREP_PATTERN); | |
1156 | argv++; | |
1157 | argc--; | |
5010cb5f | 1158 | } |
5acd64ed | 1159 | |
0af88c15 JS |
1160 | if (show_in_pager == default_pager) |
1161 | show_in_pager = git_pager(1); | |
678e484b | 1162 | if (show_in_pager) { |
e7b082a4 | 1163 | opt.color = 0; |
0af88c15 JS |
1164 | opt.name_only = 1; |
1165 | opt.null_following_name = 1; | |
1166 | opt.output_priv = &path_list; | |
1167 | opt.output = append_path; | |
0c72cead | 1168 | string_list_append(&path_list, show_in_pager); |
678e484b JS |
1169 | } |
1170 | ||
f9b9faf6 | 1171 | if (!opt.pattern_list) |
2fc5f9f1 | 1172 | die(_("no pattern given.")); |
5b594f45 | 1173 | |
b5b81136 JK |
1174 | /* |
1175 | * We have to find "--" in a separate pass, because its presence | |
1176 | * influences how we will parse arguments that come before it. | |
1177 | */ | |
1178 | for (i = 0; i < argc; i++) { | |
1179 | if (!strcmp(argv[i], "--")) { | |
1180 | seen_dashdash = 1; | |
1181 | break; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | /* | |
1186 | * Resolve any rev arguments. If we have a dashdash, then everything up | |
1187 | * to it must resolve as a rev. If not, then we stop at the first | |
1188 | * non-rev and assume everything else is a path. | |
1189 | */ | |
131f3c96 | 1190 | allow_revs = use_index && !untracked; |
3e230fa1 | 1191 | for (i = 0; i < argc; i++) { |
5acd64ed | 1192 | const char *arg = argv[i]; |
1db11086 | 1193 | struct object_id oid; |
afa15f3c | 1194 | struct object_context oc; |
20d6421c JK |
1195 | struct object *object; |
1196 | ||
dca3b5f5 JT |
1197 | if (!strcmp(arg, "--")) { |
1198 | i++; | |
dca3b5f5 JT |
1199 | break; |
1200 | } | |
20d6421c | 1201 | |
131f3c96 | 1202 | if (!allow_revs) { |
d0ffc069 | 1203 | if (seen_dashdash) |
131f3c96 | 1204 | die(_("--no-index or --untracked cannot be used with revs")); |
d0ffc069 JK |
1205 | break; |
1206 | } | |
1207 | ||
dc944b65 JK |
1208 | if (get_sha1_with_context(arg, GET_SHA1_RECORD_PATH, |
1209 | oid.hash, &oc)) { | |
b5b81136 JK |
1210 | if (seen_dashdash) |
1211 | die(_("unable to resolve revision: %s"), arg); | |
20d6421c | 1212 | break; |
b5b81136 | 1213 | } |
20d6421c | 1214 | |
c251c83d | 1215 | object = parse_object_or_die(&oid, arg); |
20d6421c JK |
1216 | if (!seen_dashdash) |
1217 | verify_non_filename(prefix, arg); | |
1218 | add_object_array_with_path(object, arg, &list, oc.mode, oc.path); | |
dc944b65 | 1219 | free(oc.path); |
1362671f | 1220 | } |
5acd64ed | 1221 | |
b5b81136 JK |
1222 | /* |
1223 | * Anything left over is presumed to be a path. But in the non-dashdash | |
1224 | * "do what I mean" case, we verify and complain when that isn't true. | |
1225 | */ | |
a0fe2b0d JK |
1226 | if (!seen_dashdash) { |
1227 | int j; | |
1228 | for (j = i; j < argc; j++) | |
131f3c96 | 1229 | verify_filename(prefix, argv[j], j == i && allow_revs); |
a0fe2b0d JK |
1230 | } |
1231 | ||
1232 | parse_pathspec(&pathspec, 0, | |
1233 | PATHSPEC_PREFER_CWD | | |
1234 | (opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0), | |
1235 | prefix, argv + i); | |
1236 | pathspec.max_depth = opt.max_depth; | |
1237 | pathspec.recursive = 1; | |
1238 | ||
53b8d931 | 1239 | #ifndef NO_PTHREADS |
044b1f3c | 1240 | if (list.nr || cached || show_in_pager) |
89f09dd3 VL |
1241 | num_threads = 0; |
1242 | else if (num_threads == 0) | |
1243 | num_threads = GREP_NUM_THREADS_DEFAULT; | |
1244 | else if (num_threads < 0) | |
1245 | die(_("invalid number of threads specified (%d)"), num_threads); | |
9ec726a4 ÆAB |
1246 | if (num_threads == 1) |
1247 | num_threads = 0; | |
53b8d931 | 1248 | #else |
d1edee4a ÆAB |
1249 | if (num_threads) |
1250 | warning(_("no threads support, ignoring --threads")); | |
89f09dd3 | 1251 | num_threads = 0; |
53b8d931 TR |
1252 | #endif |
1253 | ||
6d423dd5 ÆAB |
1254 | if (!num_threads) |
1255 | /* | |
1256 | * The compiled patterns on the main path are only | |
1257 | * used when not using threading. Otherwise | |
1258 | * start_threads() below calls compile_grep_patterns() | |
1259 | * for each thread. | |
1260 | */ | |
1261 | compile_grep_patterns(&opt); | |
1262 | ||
53b8d931 | 1263 | #ifndef NO_PTHREADS |
89f09dd3 | 1264 | if (num_threads) { |
50dd0f2f AY |
1265 | if (!(opt.name_only || opt.unmatch_name_only || opt.count) |
1266 | && (opt.pre_context || opt.post_context || | |
1267 | opt.file_break || opt.funcbody)) | |
53b8d931 TR |
1268 | skip_first_line = 1; |
1269 | start_threads(&opt); | |
1270 | } | |
1271 | #endif | |
1272 | ||
0281e487 BW |
1273 | if (recurse_submodules) { |
1274 | gitmodules_config(); | |
be80a239 | 1275 | compile_submodule_options(&opt, argv + i, cached, untracked, |
0281e487 BW |
1276 | opt_exclude, use_index, |
1277 | pattern_type_arg); | |
1278 | } | |
1279 | ||
678e484b | 1280 | if (show_in_pager && (cached || list.nr)) |
e4fe4ba5 | 1281 | die(_("--open-files-in-pager only works on the worktree")); |
678e484b JS |
1282 | |
1283 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1284 | const char *pager = path_list.items[0].string; | |
1285 | int len = strlen(pager); | |
1286 | ||
1287 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1288 | pager += len - 4; | |
1289 | ||
f7febbea JS |
1290 | if (opt.ignore_case && !strcmp("less", pager)) |
1291 | string_list_append(&path_list, "-I"); | |
1292 | ||
678e484b JS |
1293 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { |
1294 | struct strbuf buf = STRBUF_INIT; | |
1295 | strbuf_addf(&buf, "+/%s%s", | |
1296 | strcmp("less", pager) ? "" : "*", | |
1297 | opt.pattern_list->pattern); | |
0c72cead | 1298 | string_list_append(&path_list, buf.buf); |
678e484b JS |
1299 | strbuf_detach(&buf, NULL); |
1300 | } | |
1301 | } | |
1302 | ||
74ed4371 | 1303 | if (recurse_submodules && (!use_index || untracked)) |
0281e487 BW |
1304 | die(_("option not supported with --recurse-submodules.")); |
1305 | ||
c2048f0b | 1306 | if (!show_in_pager && !opt.status_only) |
678e484b JS |
1307 | setup_pager(); |
1308 | ||
0a93fb8a | 1309 | if (!use_index && (untracked || cached)) |
dbfae86a | 1310 | die(_("--cached or --untracked cannot be used with --no-index.")); |
678e484b | 1311 | |
0a93fb8a | 1312 | if (!use_index || untracked) { |
0a93fb8a | 1313 | int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude; |
85975c0c | 1314 | hit = grep_directory(&opt, &pathspec, use_exclude, use_index); |
dbfae86a | 1315 | } else if (0 <= opt_exclude) { |
9fddaf78 | 1316 | die(_("--[no-]exclude-standard cannot be used for tracked contents.")); |
685359cf | 1317 | } else if (!list.nr) { |
6577f542 NTND |
1318 | if (!cached) |
1319 | setup_work_tree(); | |
5b594f45 | 1320 | |
f34bbc15 | 1321 | hit = grep_cache(&opt, &pathspec, cached); |
685359cf JS |
1322 | } else { |
1323 | if (cached) | |
2fc5f9f1 | 1324 | die(_("both --cached and trees are given.")); |
f34bbc15 | 1325 | hit = grep_objects(&opt, &pathspec, &list); |
5010cb5f | 1326 | } |
5b594f45 | 1327 | |
89f09dd3 | 1328 | if (num_threads) |
5b594f45 | 1329 | hit |= wait_all(); |
678e484b JS |
1330 | if (hit && show_in_pager) |
1331 | run_pager(&opt, prefix); | |
7861fa07 | 1332 | clear_pathspec(&pathspec); |
b48fb5b6 | 1333 | free_grep_patterns(&opt); |
5010cb5f JH |
1334 | return !hit; |
1335 | } |