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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 | */ | |
bc5c5ec0 | 6 | #include "builtin.h" |
f394e093 | 7 | #include "gettext.h" |
41771fa4 | 8 | #include "hex.h" |
627d9342 | 9 | #include "repository.h" |
b2141fc1 | 10 | #include "config.h" |
5010cb5f JH |
11 | #include "blob.h" |
12 | #include "tree.h" | |
13 | #include "commit.h" | |
14 | #include "tag.h" | |
1362671f | 15 | #include "tree-walk.h" |
3e230fa1 | 16 | #include "parse-options.h" |
678e484b JS |
17 | #include "string-list.h" |
18 | #include "run-command.h" | |
60ecac98 | 19 | #include "userdiff.h" |
83b5d2f5 | 20 | #include "grep.h" |
493b7a08 | 21 | #include "quote.h" |
59332d13 | 22 | #include "dir.h" |
64acde94 | 23 | #include "pathspec.h" |
e38da487 | 24 | #include "setup.h" |
0281e487 | 25 | #include "submodule.h" |
74ed4371 | 26 | #include "submodule-config.h" |
87bed179 | 27 | #include "object-file.h" |
dabab1d6 | 28 | #include "object-name.h" |
a034e910 | 29 | #include "object-store-ll.h" |
6c307626 | 30 | #include "packfile.h" |
ca4eed70 | 31 | #include "pager.h" |
c339932b | 32 | #include "path.h" |
08c46a49 | 33 | #include "read-cache-ll.h" |
d48be35c | 34 | #include "write-or-die.h" |
5b594f45 | 35 | |
9725c8dd ÆAB |
36 | static const char *grep_prefix; |
37 | ||
3e230fa1 | 38 | static char const * const grep_usage[] = { |
9c9b4f2f | 39 | N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), |
3e230fa1 RS |
40 | NULL |
41 | }; | |
42 | ||
0281e487 | 43 | static int recurse_submodules; |
0281e487 | 44 | |
89f09dd3 | 45 | static int num_threads; |
5b594f45 | 46 | |
89f09dd3 | 47 | static pthread_t *threads; |
5b594f45 | 48 | |
5b594f45 FK |
49 | /* We use one producer thread and THREADS consumer |
50 | * threads. The producer adds struct work_items to 'todo' and the | |
51 | * consumers pick work items from the same array. | |
52 | */ | |
9cba13ca | 53 | struct work_item { |
8f24a632 | 54 | struct grep_source source; |
5b594f45 FK |
55 | char done; |
56 | struct strbuf out; | |
57 | }; | |
58 | ||
59 | /* In the range [todo_done, todo_start) in 'todo' we have work_items | |
60 | * that have been or are processed by a consumer thread. We haven't | |
61 | * written the result for these to stdout yet. | |
62 | * | |
63 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
64 | * up by a consumer thread. | |
65 | * | |
66 | * The ranges are modulo TODO_SIZE. | |
67 | */ | |
68 | #define TODO_SIZE 128 | |
69 | static struct work_item todo[TODO_SIZE]; | |
70 | static int todo_start; | |
71 | static int todo_end; | |
72 | static int todo_done; | |
73 | ||
74 | /* Has all work items been added? */ | |
75 | static int all_work_added; | |
76 | ||
dd45471a JT |
77 | static struct repository **repos_to_free; |
78 | static size_t repos_to_free_nr, repos_to_free_alloc; | |
79 | ||
5b594f45 FK |
80 | /* This lock protects all the variables above. */ |
81 | static pthread_mutex_t grep_mutex; | |
82 | ||
1487a12b JH |
83 | static inline void grep_lock(void) |
84 | { | |
8df4c295 | 85 | pthread_mutex_lock(&grep_mutex); |
1487a12b JH |
86 | } |
87 | ||
88 | static inline void grep_unlock(void) | |
89 | { | |
8df4c295 | 90 | pthread_mutex_unlock(&grep_mutex); |
1487a12b JH |
91 | } |
92 | ||
5b594f45 FK |
93 | /* Signalled when a new work_item is added to todo. */ |
94 | static pthread_cond_t cond_add; | |
95 | ||
96 | /* Signalled when the result from one work_item is written to | |
97 | * stdout. | |
98 | */ | |
99 | static pthread_cond_t cond_write; | |
100 | ||
101 | /* Signalled when we are finished with everything. */ | |
102 | static pthread_cond_t cond_result; | |
103 | ||
08303c36 | 104 | static int skip_first_line; |
431d6e7b | 105 | |
70a9fef2 | 106 | static void add_work(struct grep_opt *opt, struct grep_source *gs) |
5b594f45 | 107 | { |
70a9fef2 MT |
108 | if (opt->binary != GREP_BINARY_TEXT) |
109 | grep_source_load_driver(gs, opt->repo->index); | |
110 | ||
5b594f45 FK |
111 | grep_lock(); |
112 | ||
113 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
114 | pthread_cond_wait(&cond_write, &grep_mutex); | |
115 | } | |
116 | ||
e2e05d61 | 117 | todo[todo_end].source = *gs; |
5b594f45 FK |
118 | todo[todo_end].done = 0; |
119 | strbuf_reset(&todo[todo_end].out); | |
120 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
121 | ||
122 | pthread_cond_signal(&cond_add); | |
123 | grep_unlock(); | |
124 | } | |
125 | ||
126 | static struct work_item *get_work(void) | |
127 | { | |
128 | struct work_item *ret; | |
129 | ||
130 | grep_lock(); | |
131 | while (todo_start == todo_end && !all_work_added) { | |
132 | pthread_cond_wait(&cond_add, &grep_mutex); | |
133 | } | |
134 | ||
135 | if (todo_start == todo_end && all_work_added) { | |
136 | ret = NULL; | |
137 | } else { | |
138 | ret = &todo[todo_start]; | |
139 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
140 | } | |
141 | grep_unlock(); | |
142 | return ret; | |
143 | } | |
144 | ||
5b594f45 FK |
145 | static void work_done(struct work_item *w) |
146 | { | |
147 | int old_done; | |
148 | ||
149 | grep_lock(); | |
150 | w->done = 1; | |
151 | old_done = todo_done; | |
152 | for(; todo[todo_done].done && todo_done != todo_start; | |
153 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
154 | w = &todo[todo_done]; | |
431d6e7b | 155 | if (w->out.len) { |
08303c36 RS |
156 | const char *p = w->out.buf; |
157 | size_t len = w->out.len; | |
158 | ||
159 | /* Skip the leading hunk mark of the first file. */ | |
160 | if (skip_first_line) { | |
161 | while (len) { | |
162 | len--; | |
163 | if (*p++ == '\n') | |
164 | break; | |
165 | } | |
166 | skip_first_line = 0; | |
167 | } | |
168 | ||
169 | write_or_die(1, p, len); | |
431d6e7b | 170 | } |
8f24a632 | 171 | grep_source_clear(&w->source); |
5b594f45 FK |
172 | } |
173 | ||
174 | if (old_done != todo_done) | |
175 | pthread_cond_signal(&cond_write); | |
176 | ||
177 | if (all_work_added && todo_done == todo_end) | |
178 | pthread_cond_signal(&cond_result); | |
179 | ||
180 | grep_unlock(); | |
181 | } | |
182 | ||
dd45471a JT |
183 | static void free_repos(void) |
184 | { | |
185 | int i; | |
186 | ||
187 | for (i = 0; i < repos_to_free_nr; i++) { | |
188 | repo_clear(repos_to_free[i]); | |
189 | free(repos_to_free[i]); | |
190 | } | |
191 | FREE_AND_NULL(repos_to_free); | |
192 | repos_to_free_nr = 0; | |
193 | repos_to_free_alloc = 0; | |
194 | } | |
195 | ||
5b594f45 FK |
196 | static void *run(void *arg) |
197 | { | |
198 | int hit = 0; | |
199 | struct grep_opt *opt = arg; | |
200 | ||
201 | while (1) { | |
202 | struct work_item *w = get_work(); | |
203 | if (!w) | |
204 | break; | |
205 | ||
206 | opt->output_priv = w; | |
f9ee2fcd | 207 | hit |= grep_source(opt, &w->source); |
8f24a632 | 208 | grep_source_clear_data(&w->source); |
5b594f45 FK |
209 | work_done(w); |
210 | } | |
a2fb7672 ÆAB |
211 | free_grep_patterns(opt); |
212 | free(opt); | |
5b594f45 FK |
213 | |
214 | return (void*) (intptr_t) hit; | |
215 | } | |
216 | ||
217 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
218 | { | |
219 | struct work_item *w = opt->output_priv; | |
220 | strbuf_add(&w->out, buf, size); | |
221 | } | |
222 | ||
223 | static void start_threads(struct grep_opt *opt) | |
224 | { | |
225 | int i; | |
226 | ||
227 | pthread_mutex_init(&grep_mutex, NULL); | |
0579f91d | 228 | pthread_mutex_init(&grep_attr_mutex, NULL); |
5b594f45 FK |
229 | pthread_cond_init(&cond_add, NULL); |
230 | pthread_cond_init(&cond_write, NULL); | |
231 | pthread_cond_init(&cond_result, NULL); | |
78db6ea9 | 232 | grep_use_locks = 1; |
1d1729ca | 233 | enable_obj_read_lock(); |
5b594f45 FK |
234 | |
235 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
236 | strbuf_init(&todo[i].out, 0); | |
237 | } | |
238 | ||
ca56dadb | 239 | CALLOC_ARRAY(threads, num_threads); |
89f09dd3 | 240 | for (i = 0; i < num_threads; i++) { |
5b594f45 FK |
241 | int err; |
242 | struct grep_opt *o = grep_opt_dup(opt); | |
243 | o->output = strbuf_out; | |
244 | compile_grep_patterns(o); | |
245 | err = pthread_create(&threads[i], NULL, run, o); | |
246 | ||
247 | if (err) | |
2fc5f9f1 | 248 | die(_("grep: failed to create thread: %s"), |
5b594f45 FK |
249 | strerror(err)); |
250 | } | |
251 | } | |
252 | ||
253 | static int wait_all(void) | |
254 | { | |
255 | int hit = 0; | |
256 | int i; | |
257 | ||
4002e87c | 258 | if (!HAVE_THREADS) |
fd6263fb | 259 | BUG("Never call this function unless you have started threads"); |
4002e87c | 260 | |
5b594f45 FK |
261 | grep_lock(); |
262 | all_work_added = 1; | |
263 | ||
264 | /* Wait until all work is done. */ | |
265 | while (todo_done != todo_end) | |
266 | pthread_cond_wait(&cond_result, &grep_mutex); | |
267 | ||
268 | /* Wake up all the consumer threads so they can see that there | |
269 | * is no more work to do. | |
270 | */ | |
271 | pthread_cond_broadcast(&cond_add); | |
272 | grep_unlock(); | |
273 | ||
89f09dd3 | 274 | for (i = 0; i < num_threads; i++) { |
5b594f45 FK |
275 | void *h; |
276 | pthread_join(threads[i], &h); | |
277 | hit |= (int) (intptr_t) h; | |
278 | } | |
279 | ||
89f09dd3 VL |
280 | free(threads); |
281 | ||
5b594f45 | 282 | pthread_mutex_destroy(&grep_mutex); |
0579f91d | 283 | pthread_mutex_destroy(&grep_attr_mutex); |
5b594f45 FK |
284 | pthread_cond_destroy(&cond_add); |
285 | pthread_cond_destroy(&cond_write); | |
286 | pthread_cond_destroy(&cond_result); | |
78db6ea9 | 287 | grep_use_locks = 0; |
1d1729ca | 288 | disable_obj_read_lock(); |
5b594f45 FK |
289 | |
290 | return hit; | |
291 | } | |
5b594f45 | 292 | |
a4e7e317 GC |
293 | static int grep_cmd_config(const char *var, const char *value, |
294 | const struct config_context *ctx, void *cb) | |
15fabd1b | 295 | { |
a4e7e317 | 296 | int st = grep_config(var, value, ctx, cb); |
97eeeea2 GC |
297 | |
298 | if (git_color_config(var, value, cb) < 0) | |
299 | st = -1; | |
a4e7e317 | 300 | else if (git_default_config(var, value, ctx, cb) < 0) |
15fabd1b | 301 | st = -1; |
89f09dd3 VL |
302 | |
303 | if (!strcmp(var, "grep.threads")) { | |
8868b1eb | 304 | num_threads = git_config_int(var, value, ctx->kvi); |
89f09dd3 VL |
305 | if (num_threads < 0) |
306 | die(_("invalid number of threads specified (%d) for %s"), | |
307 | num_threads, var); | |
fd6263fb | 308 | else if (!HAVE_THREADS && num_threads > 1) { |
d1edee4a ÆAB |
309 | /* |
310 | * TRANSLATORS: %s is the configuration | |
311 | * variable for tweaking threads, currently | |
312 | * grep.threads | |
313 | */ | |
314 | warning(_("no threads support, ignoring %s"), var); | |
fd6263fb | 315 | num_threads = 1; |
d1edee4a | 316 | } |
89f09dd3 VL |
317 | } |
318 | ||
9071c078 SB |
319 | if (!strcmp(var, "submodule.recurse")) |
320 | recurse_submodules = git_config_bool(var, value); | |
321 | ||
15fabd1b JH |
322 | return st; |
323 | } | |
324 | ||
45115d84 MT |
325 | static void grep_source_name(struct grep_opt *opt, const char *filename, |
326 | int tree_name_len, struct strbuf *out) | |
327 | { | |
328 | strbuf_reset(out); | |
329 | ||
330 | if (opt->null_following_name) { | |
9725c8dd | 331 | if (opt->relative && grep_prefix) { |
45115d84 MT |
332 | struct strbuf rel_buf = STRBUF_INIT; |
333 | const char *rel_name = | |
334 | relative_path(filename + tree_name_len, | |
9725c8dd | 335 | grep_prefix, &rel_buf); |
45115d84 MT |
336 | |
337 | if (tree_name_len) | |
338 | strbuf_add(out, filename, tree_name_len); | |
339 | ||
340 | strbuf_addstr(out, rel_name); | |
341 | strbuf_release(&rel_buf); | |
342 | } else { | |
343 | strbuf_addstr(out, filename); | |
344 | } | |
345 | return; | |
346 | } | |
347 | ||
9725c8dd ÆAB |
348 | if (opt->relative && grep_prefix) |
349 | quote_path(filename + tree_name_len, grep_prefix, out, 0); | |
45115d84 MT |
350 | else |
351 | quote_c_style(filename + tree_name_len, out, NULL, 0); | |
352 | ||
353 | if (tree_name_len) | |
354 | strbuf_insert(out, 0, filename, tree_name_len); | |
355 | } | |
356 | ||
1db11086 | 357 | static int grep_oid(struct grep_opt *opt, const struct object_id *oid, |
55c61688 NTND |
358 | const char *filename, int tree_name_len, |
359 | const char *path) | |
5b594f45 FK |
360 | { |
361 | struct strbuf pathbuf = STRBUF_INIT; | |
e2e05d61 | 362 | struct grep_source gs; |
5b594f45 | 363 | |
45115d84 | 364 | grep_source_name(opt, filename, tree_name_len, &pathbuf); |
0693806b | 365 | grep_source_init_oid(&gs, pathbuf.buf, path, oid, opt->repo); |
38ef24dc | 366 | strbuf_release(&pathbuf); |
e2e05d61 | 367 | |
fd6263fb | 368 | if (num_threads > 1) { |
e2e05d61 RV |
369 | /* |
370 | * add_work() copies gs and thus assumes ownership of | |
371 | * its fields, so do not call grep_source_clear() | |
372 | */ | |
373 | add_work(opt, &gs); | |
5b594f45 | 374 | return 0; |
4002e87c | 375 | } else { |
5b594f45 | 376 | int hit; |
5010cb5f | 377 | |
8f24a632 | 378 | hit = grep_source(opt, &gs); |
dc49cd76 | 379 | |
8f24a632 JK |
380 | grep_source_clear(&gs); |
381 | return hit; | |
5010cb5f | 382 | } |
5b594f45 FK |
383 | } |
384 | ||
385 | static int grep_file(struct grep_opt *opt, const char *filename) | |
386 | { | |
387 | struct strbuf buf = STRBUF_INIT; | |
e2e05d61 | 388 | struct grep_source gs; |
5b594f45 | 389 | |
45115d84 | 390 | grep_source_name(opt, filename, 0, &buf); |
50d92b5f | 391 | grep_source_init_file(&gs, buf.buf, filename); |
38ef24dc | 392 | strbuf_release(&buf); |
e2e05d61 | 393 | |
fd6263fb | 394 | if (num_threads > 1) { |
e2e05d61 RV |
395 | /* |
396 | * add_work() copies gs and thus assumes ownership of | |
397 | * its fields, so do not call grep_source_clear() | |
398 | */ | |
399 | add_work(opt, &gs); | |
5b594f45 | 400 | return 0; |
4002e87c | 401 | } else { |
5b594f45 | 402 | int hit; |
5b594f45 | 403 | |
8f24a632 JK |
404 | hit = grep_source(opt, &gs); |
405 | ||
406 | grep_source_clear(&gs); | |
5b594f45 FK |
407 | return hit; |
408 | } | |
5010cb5f JH |
409 | } |
410 | ||
678e484b JS |
411 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
412 | { | |
413 | struct string_list *path_list = opt->output_priv; | |
414 | ||
415 | if (len == 1 && *(const char *)data == '\0') | |
416 | return; | |
b202e51b | 417 | string_list_append_nodup(path_list, xstrndup(data, len)); |
678e484b JS |
418 | } |
419 | ||
420 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
421 | { | |
422 | struct string_list *path_list = opt->output_priv; | |
850d2fec | 423 | struct child_process child = CHILD_PROCESS_INIT; |
678e484b JS |
424 | int i, status; |
425 | ||
426 | for (i = 0; i < path_list->nr; i++) | |
22f9b7f3 | 427 | strvec_push(&child.args, path_list->items[i].string); |
850d2fec JK |
428 | child.dir = prefix; |
429 | child.use_shell = 1; | |
678e484b | 430 | |
850d2fec | 431 | status = run_command(&child); |
678e484b JS |
432 | if (status) |
433 | exit(status); | |
678e484b JS |
434 | } |
435 | ||
dba093dd | 436 | static int grep_cache(struct grep_opt *opt, |
f9ee2fcd BW |
437 | const struct pathspec *pathspec, int cached); |
438 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, | |
439 | struct tree_desc *tree, struct strbuf *base, int tn_len, | |
dba093dd | 440 | int check_attr); |
0281e487 | 441 | |
dba093dd | 442 | static int grep_submodule(struct grep_opt *opt, |
f9ee2fcd BW |
443 | const struct pathspec *pathspec, |
444 | const struct object_id *oid, | |
6a289d45 | 445 | const char *filename, const char *path, int cached) |
0281e487 | 446 | { |
dd45471a | 447 | struct repository *subrepo; |
dba093dd | 448 | struct repository *superproject = opt->repo; |
dba093dd | 449 | struct grep_opt subopt; |
dd45471a | 450 | int hit = 0; |
74ed4371 | 451 | |
c441ea4e | 452 | if (!is_submodule_active(superproject, path)) |
f9ee2fcd | 453 | return 0; |
0281e487 | 454 | |
dd45471a | 455 | subrepo = xmalloc(sizeof(*subrepo)); |
8eb8dcf9 | 456 | if (repo_submodule_init(subrepo, superproject, path, null_oid())) { |
dd45471a | 457 | free(subrepo); |
f9ee2fcd | 458 | return 0; |
dd45471a JT |
459 | } |
460 | ALLOC_GROW(repos_to_free, repos_to_free_nr + 1, repos_to_free_alloc); | |
461 | repos_to_free[repos_to_free_nr++] = subrepo; | |
be80a239 | 462 | |
c441ea4e MT |
463 | /* |
464 | * NEEDSWORK: repo_read_gitmodules() might call | |
465 | * add_to_alternates_memory() via config_from_gitmodules(). This | |
466 | * operation causes a race condition with concurrent object readings | |
467 | * performed by the worker threads. That's why we need obj_read_lock() | |
468 | * here. It should be removed once it's no longer necessary to add the | |
469 | * subrepo's odbs to the in-memory alternates list. | |
470 | */ | |
471 | obj_read_lock(); | |
7cae7627 SY |
472 | |
473 | /* | |
474 | * NEEDSWORK: when reading a submodule, the sparsity settings in the | |
475 | * superproject are incorrectly forgotten or misused. For example: | |
476 | * | |
477 | * 1. "command_requires_full_index" | |
478 | * When this setting is turned on for `grep`, only the superproject | |
479 | * knows it. All the submodules are read with their own configs | |
480 | * and get prepare_repo_settings()'d. Therefore, these submodules | |
481 | * "forget" the sparse-index feature switch. As a result, the index | |
482 | * of these submodules are expanded unexpectedly. | |
483 | * | |
484 | * 2. "core_apply_sparse_checkout" | |
485 | * When running `grep` in the superproject, this setting is | |
486 | * populated using the superproject's configs. However, once | |
487 | * initialized, this config is globally accessible and is read by | |
488 | * prepare_repo_settings() for the submodules. For instance, if a | |
489 | * submodule is using a sparse-checkout, however, the superproject | |
490 | * is not, the result is that the config from the superproject will | |
491 | * dictate the behavior for the submodule, making it "forget" its | |
492 | * sparse-checkout state. | |
493 | * | |
494 | * 3. "core_sparse_checkout_cone" | |
495 | * ditto. | |
496 | * | |
497 | * Note that this list is not exhaustive. | |
498 | */ | |
dd45471a | 499 | repo_read_gitmodules(subrepo, 0); |
0281e487 | 500 | |
74ed4371 | 501 | /* |
0693806b JT |
502 | * All code paths tested by test code no longer need submodule ODBs to |
503 | * be added as alternates, but add it to the list just in case. | |
504 | * Submodule ODBs added through add_submodule_odb_by_path() will be | |
505 | * lazily registered as alternates when needed (and except in an | |
506 | * unexpected code interaction, it won't be needed). | |
74ed4371 | 507 | */ |
dd45471a | 508 | add_submodule_odb_by_path(subrepo->objects->odb->path); |
1d1729ca | 509 | obj_read_unlock(); |
74ed4371 | 510 | |
dba093dd | 511 | memcpy(&subopt, opt, sizeof(subopt)); |
dd45471a | 512 | subopt.repo = subrepo; |
dba093dd | 513 | |
f9ee2fcd | 514 | if (oid) { |
78ca584f | 515 | enum object_type object_type; |
f9ee2fcd BW |
516 | struct tree_desc tree; |
517 | void *data; | |
518 | unsigned long size; | |
519 | struct strbuf base = STRBUF_INIT; | |
74ed4371 | 520 | |
1d1729ca | 521 | obj_read_lock(); |
dd45471a | 522 | object_type = oid_object_info(subrepo, oid, NULL); |
1d1729ca | 523 | obj_read_unlock(); |
dd45471a | 524 | data = read_object_with_reference(subrepo, |
6aea6bae | 525 | oid, OBJ_TREE, |
f9ee2fcd | 526 | &size, NULL); |
f9ee2fcd | 527 | if (!data) |
78ca584f | 528 | die(_("unable to read tree (%s)"), oid_to_hex(oid)); |
0281e487 | 529 | |
f9ee2fcd BW |
530 | strbuf_addstr(&base, filename); |
531 | strbuf_addch(&base, '/'); | |
0281e487 | 532 | |
efed687e | 533 | init_tree_desc(&tree, oid, data, size); |
dba093dd | 534 | hit = grep_tree(&subopt, pathspec, &tree, &base, base.len, |
78ca584f | 535 | object_type == OBJ_COMMIT); |
f9ee2fcd BW |
536 | strbuf_release(&base); |
537 | free(data); | |
538 | } else { | |
6a289d45 | 539 | hit = grep_cache(&subopt, pathspec, cached); |
e6fac7f3 | 540 | } |
0281e487 | 541 | |
f9ee2fcd | 542 | return hit; |
0281e487 BW |
543 | } |
544 | ||
dba093dd | 545 | static int grep_cache(struct grep_opt *opt, |
f9ee2fcd | 546 | const struct pathspec *pathspec, int cached) |
5010cb5f | 547 | { |
dba093dd | 548 | struct repository *repo = opt->repo; |
5010cb5f JH |
549 | int hit = 0; |
550 | int nr; | |
0281e487 BW |
551 | struct strbuf name = STRBUF_INIT; |
552 | int name_base_len = 0; | |
f9ee2fcd BW |
553 | if (repo->submodule_prefix) { |
554 | name_base_len = strlen(repo->submodule_prefix); | |
555 | strbuf_addstr(&name, repo->submodule_prefix); | |
0281e487 BW |
556 | } |
557 | ||
b2aa84c7 | 558 | if (repo_read_index(repo) < 0) |
5507067d | 559 | die(_("index file corrupt")); |
5010cb5f | 560 | |
f9ee2fcd BW |
561 | for (nr = 0; nr < repo->index->cache_nr; nr++) { |
562 | const struct cache_entry *ce = repo->index->cache[nr]; | |
42d906be MT |
563 | |
564 | if (!cached && ce_skip_worktree(ce)) | |
565 | continue; | |
566 | ||
0281e487 BW |
567 | strbuf_setlen(&name, name_base_len); |
568 | strbuf_addstr(&name, ce->name); | |
7cae7627 SY |
569 | if (S_ISSPARSEDIR(ce->ce_mode)) { |
570 | enum object_type type; | |
571 | struct tree_desc tree; | |
572 | void *data; | |
573 | unsigned long size; | |
0281e487 | 574 | |
bc726bd0 ÆAB |
575 | data = repo_read_object_file(the_repository, &ce->oid, |
576 | &type, &size); | |
efed687e | 577 | init_tree_desc(&tree, &ce->oid, data, size); |
7cae7627 SY |
578 | |
579 | hit |= grep_tree(opt, pathspec, &tree, &name, 0, 0); | |
580 | strbuf_setlen(&name, name_base_len); | |
581 | strbuf_addstr(&name, ce->name); | |
582 | free(data); | |
583 | } else if (S_ISREG(ce->ce_mode) && | |
a4009b0b | 584 | match_pathspec(repo->index, pathspec, name.buf, name.len, 0, NULL, |
0281e487 BW |
585 | S_ISDIR(ce->ce_mode) || |
586 | S_ISGITLINK(ce->ce_mode))) { | |
587 | /* | |
588 | * If CE_VALID is on, we assume worktree file and its | |
589 | * cache entry are identical, even if worktree file has | |
590 | * been modified, so use cache version instead | |
591 | */ | |
42d906be | 592 | if (cached || (ce->ce_flags & CE_VALID)) { |
0281e487 BW |
593 | if (ce_stage(ce) || ce_intent_to_add(ce)) |
594 | continue; | |
f9ee2fcd BW |
595 | hit |= grep_oid(opt, &ce->oid, name.buf, |
596 | 0, name.buf); | |
0281e487 | 597 | } else { |
f9ee2fcd | 598 | hit |= grep_file(opt, name.buf); |
0281e487 BW |
599 | } |
600 | } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && | |
a4009b0b | 601 | submodule_path_match(repo->index, pathspec, name.buf, NULL)) { |
6a289d45 MT |
602 | hit |= grep_submodule(opt, pathspec, NULL, ce->name, |
603 | ce->name, cached); | |
0281e487 | 604 | } else { |
5010cb5f | 605 | continue; |
36f2587f | 606 | } |
0281e487 | 607 | |
36f2587f JH |
608 | if (ce_stage(ce)) { |
609 | do { | |
610 | nr++; | |
f9ee2fcd BW |
611 | } while (nr < repo->index->cache_nr && |
612 | !strcmp(ce->name, repo->index->cache[nr]->name)); | |
36f2587f JH |
613 | nr--; /* compensate for loop control */ |
614 | } | |
c8610a2e JH |
615 | if (hit && opt->status_only) |
616 | break; | |
5010cb5f | 617 | } |
0281e487 BW |
618 | |
619 | strbuf_release(&name); | |
5010cb5f JH |
620 | return hit; |
621 | } | |
622 | ||
f34bbc15 | 623 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, |
55c61688 | 624 | struct tree_desc *tree, struct strbuf *base, int tn_len, |
dba093dd | 625 | int check_attr) |
5010cb5f | 626 | { |
dba093dd | 627 | struct repository *repo = opt->repo; |
d688cf07 NTND |
628 | int hit = 0; |
629 | enum interesting match = entry_not_interesting; | |
4c068a98 | 630 | struct name_entry entry; |
e5e062b6 | 631 | int old_baselen = base->len; |
74ed4371 BW |
632 | struct strbuf name = STRBUF_INIT; |
633 | int name_base_len = 0; | |
f9ee2fcd BW |
634 | if (repo->submodule_prefix) { |
635 | strbuf_addstr(&name, repo->submodule_prefix); | |
74ed4371 BW |
636 | name_base_len = name.len; |
637 | } | |
5010cb5f | 638 | |
4c068a98 | 639 | while (tree_entry(tree, &entry)) { |
0de16337 | 640 | int te_len = tree_entry_len(&entry); |
e5e062b6 | 641 | |
d688cf07 | 642 | if (match != all_entries_interesting) { |
74ed4371 | 643 | strbuf_addstr(&name, base->buf + tn_len); |
67022e02 NTND |
644 | match = tree_entry_interesting(repo->index, |
645 | &entry, &name, | |
0ad927e9 | 646 | pathspec); |
74ed4371 BW |
647 | strbuf_setlen(&name, name_base_len); |
648 | ||
d688cf07 | 649 | if (match == all_entries_not_interesting) |
97d0b74a | 650 | break; |
d688cf07 | 651 | if (match == entry_not_interesting) |
1376e507 NTND |
652 | continue; |
653 | } | |
5010cb5f | 654 | |
1376e507 | 655 | strbuf_add(base, entry.path, te_len); |
e0eb889f | 656 | |
1376e507 | 657 | if (S_ISREG(entry.mode)) { |
ea82b2a0 | 658 | hit |= grep_oid(opt, &entry.oid, base->buf, tn_len, |
55c61688 | 659 | check_attr ? base->buf + tn_len : NULL); |
74ed4371 | 660 | } else if (S_ISDIR(entry.mode)) { |
21666f1a | 661 | enum object_type type; |
5010cb5f JH |
662 | struct tree_desc sub; |
663 | void *data; | |
6fda5e51 LT |
664 | unsigned long size; |
665 | ||
bc726bd0 ÆAB |
666 | data = repo_read_object_file(the_repository, |
667 | &entry.oid, &type, &size); | |
5010cb5f | 668 | if (!data) |
2fc5f9f1 | 669 | die(_("unable to read tree (%s)"), |
ea82b2a0 | 670 | oid_to_hex(&entry.oid)); |
1376e507 NTND |
671 | |
672 | strbuf_addch(base, '/'); | |
efed687e | 673 | init_tree_desc(&sub, &entry.oid, data, size); |
55c61688 | 674 | hit |= grep_tree(opt, pathspec, &sub, base, tn_len, |
dba093dd | 675 | check_attr); |
5010cb5f | 676 | free(data); |
74ed4371 | 677 | } else if (recurse_submodules && S_ISGITLINK(entry.mode)) { |
7589e636 | 678 | hit |= grep_submodule(opt, pathspec, &entry.oid, |
6a289d45 MT |
679 | base->buf, base->buf + tn_len, |
680 | 1); /* ignored */ | |
5010cb5f | 681 | } |
74ed4371 | 682 | |
e5e062b6 NTND |
683 | strbuf_setlen(base, old_baselen); |
684 | ||
c8610a2e JH |
685 | if (hit && opt->status_only) |
686 | break; | |
5010cb5f | 687 | } |
74ed4371 BW |
688 | |
689 | strbuf_release(&name); | |
5010cb5f JH |
690 | return hit; |
691 | } | |
692 | ||
f34bbc15 | 693 | static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, |
6856077a | 694 | struct object *obj, const char *name, const char *path) |
5010cb5f | 695 | { |
1974632c | 696 | if (obj->type == OBJ_BLOB) |
1db11086 | 697 | return grep_oid(opt, &obj->oid, name, 0, path); |
1974632c | 698 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
699 | struct tree_desc tree; |
700 | void *data; | |
6fda5e51 | 701 | unsigned long size; |
e5e062b6 NTND |
702 | struct strbuf base; |
703 | int hit, len; | |
704 | ||
d3b4705a | 705 | data = read_object_with_reference(opt->repo, |
6aea6bae | 706 | &obj->oid, OBJ_TREE, |
6fda5e51 | 707 | &size, NULL); |
5010cb5f | 708 | if (!data) |
f2fd0760 | 709 | die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); |
e5e062b6 NTND |
710 | |
711 | len = name ? strlen(name) : 0; | |
712 | strbuf_init(&base, PATH_MAX + len + 1); | |
713 | if (len) { | |
714 | strbuf_add(&base, name, len); | |
715 | strbuf_addch(&base, ':'); | |
716 | } | |
efed687e | 717 | init_tree_desc(&tree, &obj->oid, data, size); |
55c61688 | 718 | hit = grep_tree(opt, pathspec, &tree, &base, base.len, |
dba093dd | 719 | obj->type == OBJ_COMMIT); |
e5e062b6 | 720 | strbuf_release(&base); |
5010cb5f JH |
721 | free(data); |
722 | return hit; | |
723 | } | |
debca9d2 | 724 | die(_("unable to grep from object of type %s"), type_name(obj->type)); |
5010cb5f JH |
725 | } |
726 | ||
f34bbc15 | 727 | static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, |
30d00c39 JN |
728 | const struct object_array *list) |
729 | { | |
730 | unsigned int i; | |
731 | int hit = 0; | |
732 | const unsigned int nr = list->nr; | |
733 | ||
734 | for (i = 0; i < nr; i++) { | |
735 | struct object *real_obj; | |
d5b0bac5 | 736 | |
1d1729ca | 737 | obj_read_lock(); |
dba093dd | 738 | real_obj = deref_tag(opt->repo, list->objects[i].item, |
a74093da | 739 | NULL, 0); |
1d1729ca | 740 | obj_read_unlock(); |
74ed4371 | 741 | |
e30b1525 RS |
742 | if (!real_obj) { |
743 | char hex[GIT_MAX_HEXSZ + 1]; | |
744 | const char *name = list->objects[i].name; | |
745 | ||
746 | if (!name) { | |
747 | oid_to_hex_r(hex, &list->objects[i].item->oid); | |
748 | name = hex; | |
749 | } | |
750 | die(_("invalid object '%s' given."), name); | |
751 | } | |
752 | ||
74ed4371 BW |
753 | /* load the gitmodules file for this rev */ |
754 | if (recurse_submodules) { | |
dba093dd | 755 | submodule_free(opt->repo); |
1d1729ca | 756 | obj_read_lock(); |
cd73de47 | 757 | gitmodules_config_oid(&real_obj->oid); |
1d1729ca | 758 | obj_read_unlock(); |
74ed4371 | 759 | } |
6856077a JT |
760 | if (grep_object(opt, pathspec, real_obj, list->objects[i].name, |
761 | list->objects[i].path)) { | |
30d00c39 JN |
762 | hit = 1; |
763 | if (opt->status_only) | |
764 | break; | |
765 | } | |
766 | } | |
767 | return hit; | |
768 | } | |
769 | ||
dbfae86a | 770 | static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, |
85975c0c | 771 | int exc_std, int use_index) |
59332d13 | 772 | { |
ce93a4c6 | 773 | struct dir_struct dir = DIR_INIT; |
59332d13 JH |
774 | int i, hit = 0; |
775 | ||
85975c0c JK |
776 | if (!use_index) |
777 | dir.flags |= DIR_NO_GITLINKS; | |
0a93fb8a JH |
778 | if (exc_std) |
779 | setup_standard_excludes(&dir); | |
59332d13 | 780 | |
dba093dd | 781 | fill_directory(&dir, opt->repo->index, pathspec); |
59332d13 JH |
782 | for (i = 0; i < dir.nr; i++) { |
783 | hit |= grep_file(opt, dir.entries[i]->name); | |
784 | if (hit && opt->status_only) | |
785 | break; | |
786 | } | |
eceba532 | 787 | dir_clear(&dir); |
59332d13 JH |
788 | return hit; |
789 | } | |
790 | ||
ff3c7f9a RS |
791 | static int context_callback(const struct option *opt, const char *arg, |
792 | int unset) | |
3e230fa1 RS |
793 | { |
794 | struct grep_opt *grep_opt = opt->value; | |
795 | int value; | |
796 | const char *endp; | |
797 | ||
798 | if (unset) { | |
799 | grep_opt->pre_context = grep_opt->post_context = 0; | |
800 | return 0; | |
801 | } | |
802 | value = strtol(arg, (char **)&endp, 10); | |
803 | if (*endp) { | |
2fc5f9f1 | 804 | return error(_("switch `%c' expects a numerical value"), |
3e230fa1 RS |
805 | opt->short_name); |
806 | } | |
807 | grep_opt->pre_context = grep_opt->post_context = value; | |
808 | return 0; | |
809 | } | |
810 | ||
ff3c7f9a | 811 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
812 | { |
813 | struct grep_opt *grep_opt = opt->value; | |
517fe807 | 814 | int from_stdin; |
3e230fa1 RS |
815 | FILE *patterns; |
816 | int lno = 0; | |
cfe370c6 | 817 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 | 818 | |
517fe807 JK |
819 | BUG_ON_OPT_NEG(unset); |
820 | ||
821 | from_stdin = !strcmp(arg, "-"); | |
c41dd2fd | 822 | patterns = from_stdin ? stdin : fopen(arg, "r"); |
3e230fa1 | 823 | if (!patterns) |
2fc5f9f1 | 824 | die_errno(_("cannot open '%s'"), arg); |
a5518431 | 825 | while (strbuf_getline(&sb, patterns) == 0) { |
3e230fa1 RS |
826 | /* ignore empty line like grep does */ |
827 | if (sb.len == 0) | |
828 | continue; | |
ed40a095 | 829 | |
ec830611 RS |
830 | append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno, |
831 | GREP_PATTERN); | |
3e230fa1 | 832 | } |
c41dd2fd RS |
833 | if (!from_stdin) |
834 | fclose(patterns); | |
3e230fa1 RS |
835 | strbuf_release(&sb); |
836 | return 0; | |
837 | } | |
838 | ||
ff3c7f9a | 839 | static int not_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
840 | { |
841 | struct grep_opt *grep_opt = opt->value; | |
517fe807 JK |
842 | BUG_ON_OPT_NEG(unset); |
843 | BUG_ON_OPT_ARG(arg); | |
3e230fa1 RS |
844 | append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT); |
845 | return 0; | |
846 | } | |
847 | ||
ff3c7f9a | 848 | static int and_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
849 | { |
850 | struct grep_opt *grep_opt = opt->value; | |
517fe807 JK |
851 | BUG_ON_OPT_NEG(unset); |
852 | BUG_ON_OPT_ARG(arg); | |
3e230fa1 RS |
853 | append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND); |
854 | return 0; | |
855 | } | |
856 | ||
ff3c7f9a | 857 | static int open_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
858 | { |
859 | struct grep_opt *grep_opt = opt->value; | |
517fe807 JK |
860 | BUG_ON_OPT_NEG(unset); |
861 | BUG_ON_OPT_ARG(arg); | |
3e230fa1 RS |
862 | append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN); |
863 | return 0; | |
864 | } | |
865 | ||
ff3c7f9a | 866 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
867 | { |
868 | struct grep_opt *grep_opt = opt->value; | |
517fe807 JK |
869 | BUG_ON_OPT_NEG(unset); |
870 | BUG_ON_OPT_ARG(arg); | |
3e230fa1 RS |
871 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); |
872 | return 0; | |
873 | } | |
874 | ||
ff3c7f9a RS |
875 | static int pattern_callback(const struct option *opt, const char *arg, |
876 | int unset) | |
3e230fa1 RS |
877 | { |
878 | struct grep_opt *grep_opt = opt->value; | |
517fe807 | 879 | BUG_ON_OPT_NEG(unset); |
3e230fa1 RS |
880 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); |
881 | return 0; | |
882 | } | |
5010cb5f | 883 | |
a633fca0 | 884 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 885 | { |
5010cb5f | 886 | int hit = 0; |
0a93fb8a | 887 | int cached = 0, untracked = 0, opt_exclude = -1; |
5acd64ed | 888 | int seen_dashdash = 0; |
bbc09c22 | 889 | int external_grep_allowed__ignored; |
0af88c15 | 890 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 891 | struct grep_opt opt; |
3cd47459 | 892 | struct object_array list = OBJECT_ARRAY_INIT; |
f34bbc15 | 893 | struct pathspec pathspec; |
b202e51b | 894 | struct string_list path_list = STRING_LIST_INIT_DUP; |
5acd64ed | 895 | int i; |
3e230fa1 | 896 | int dummy; |
ff38d1a9 | 897 | int use_index = 1; |
131f3c96 | 898 | int allow_revs; |
cca2c172 | 899 | |
3e230fa1 | 900 | struct option options[] = { |
d5d09d47 | 901 | OPT_BOOL(0, "cached", &cached, |
4b407bc5 | 902 | N_("search in index instead of in the work tree")), |
cbb08c2e | 903 | OPT_NEGBIT(0, "no-index", &use_index, |
f63cf8c9 | 904 | N_("find in contents not managed by git"), 1), |
d5d09d47 | 905 | OPT_BOOL(0, "untracked", &untracked, |
4b407bc5 | 906 | N_("search in both tracked and untracked files")), |
0a93fb8a | 907 | OPT_SET_INT(0, "exclude-standard", &opt_exclude, |
77fdb8a8 | 908 | N_("ignore files specified via '.gitignore'"), 1), |
0281e487 | 909 | OPT_BOOL(0, "recurse-submodules", &recurse_submodules, |
4fb1c6aa | 910 | N_("recursively search in each submodule")), |
3e230fa1 | 911 | OPT_GROUP(""), |
d5d09d47 | 912 | OPT_BOOL('v', "invert-match", &opt.invert, |
4b407bc5 | 913 | N_("show non-matching lines")), |
d5d09d47 | 914 | OPT_BOOL('i', "ignore-case", &opt.ignore_case, |
4b407bc5 | 915 | N_("case insensitive matching")), |
d5d09d47 | 916 | OPT_BOOL('w', "word-regexp", &opt.word_regexp, |
4b407bc5 | 917 | N_("match patterns only at word boundaries")), |
3e230fa1 | 918 | OPT_SET_INT('a', "text", &opt.binary, |
4b407bc5 | 919 | N_("process binary files as text"), GREP_BINARY_TEXT), |
3e230fa1 | 920 | OPT_SET_INT('I', NULL, &opt.binary, |
4b407bc5 | 921 | N_("don't match patterns in binary files"), |
3e230fa1 | 922 | GREP_BINARY_NOMATCH), |
335ec3bf JK |
923 | OPT_BOOL(0, "textconv", &opt.allow_textconv, |
924 | N_("process binary files with textconv filters")), | |
0a09e5ed RS |
925 | OPT_SET_INT('r', "recursive", &opt.max_depth, |
926 | N_("search in subdirectories (default)"), -1), | |
4b407bc5 NTND |
927 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"), |
928 | N_("descend at most <depth> levels"), PARSE_OPT_NONEG, | |
a91f453f | 929 | NULL, 1 }, |
3e230fa1 | 930 | OPT_GROUP(""), |
04bf052e | 931 | OPT_SET_INT('E', "extended-regexp", &opt.pattern_type_option, |
4b407bc5 | 932 | N_("use extended POSIX regular expressions"), |
84befcd0 | 933 | GREP_PATTERN_TYPE_ERE), |
04bf052e | 934 | OPT_SET_INT('G', "basic-regexp", &opt.pattern_type_option, |
4b407bc5 | 935 | N_("use basic POSIX regular expressions (default)"), |
84befcd0 | 936 | GREP_PATTERN_TYPE_BRE), |
04bf052e | 937 | OPT_SET_INT('F', "fixed-strings", &opt.pattern_type_option, |
4b407bc5 | 938 | N_("interpret patterns as fixed strings"), |
84befcd0 | 939 | GREP_PATTERN_TYPE_FIXED), |
04bf052e | 940 | OPT_SET_INT('P', "perl-regexp", &opt.pattern_type_option, |
4b407bc5 | 941 | N_("use Perl-compatible regular expressions"), |
84befcd0 | 942 | GREP_PATTERN_TYPE_PCRE), |
3e230fa1 | 943 | OPT_GROUP(""), |
d5d09d47 | 944 | OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), |
a449f27f | 945 | OPT_BOOL(0, "column", &opt.columnnum, N_("show column number of first match")), |
4b407bc5 NTND |
946 | OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), |
947 | OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), | |
3e230fa1 | 948 | OPT_NEGBIT(0, "full-name", &opt.relative, |
4b407bc5 | 949 | N_("show filenames relative to top directory"), 1), |
d5d09d47 | 950 | OPT_BOOL('l', "files-with-matches", &opt.name_only, |
4b407bc5 | 951 | N_("show only filenames instead of matching lines")), |
d5d09d47 | 952 | OPT_BOOL(0, "name-only", &opt.name_only, |
4b407bc5 | 953 | N_("synonym for --files-with-matches")), |
d5d09d47 | 954 | OPT_BOOL('L', "files-without-match", |
3e230fa1 | 955 | &opt.unmatch_name_only, |
4b407bc5 | 956 | N_("show only the names of files without match")), |
caf2de33 NTND |
957 | OPT_BOOL_F('z', "null", &opt.null_following_name, |
958 | N_("print NUL after filenames"), | |
959 | PARSE_OPT_NOCOMPLETE), | |
9d8db06e TB |
960 | OPT_BOOL('o', "only-matching", &opt.only_matching, |
961 | N_("show only matching parts of a line")), | |
d5d09d47 | 962 | OPT_BOOL('c', "count", &opt.count, |
4b407bc5 NTND |
963 | N_("show the number of matches instead of matching lines")), |
964 | OPT__COLOR(&opt.color, N_("highlight matches")), | |
d5d09d47 | 965 | OPT_BOOL(0, "break", &opt.file_break, |
4b407bc5 | 966 | N_("print empty line between matches from different files")), |
d5d09d47 | 967 | OPT_BOOL(0, "heading", &opt.heading, |
4b407bc5 | 968 | N_("show filename only once above matches from same file")), |
3e230fa1 | 969 | OPT_GROUP(""), |
4b407bc5 NTND |
970 | OPT_CALLBACK('C', "context", &opt, N_("n"), |
971 | N_("show <n> context lines before and after matches"), | |
3e230fa1 | 972 | context_callback), |
317f63c2 | 973 | OPT_INTEGER('B', "before-context", &opt.pre_context, |
4b407bc5 | 974 | N_("show <n> context lines before matches")), |
317f63c2 | 975 | OPT_INTEGER('A', "after-context", &opt.post_context, |
4b407bc5 | 976 | N_("show <n> context lines after matches")), |
89f09dd3 VL |
977 | OPT_INTEGER(0, "threads", &num_threads, |
978 | N_("use <n> worker threads")), | |
4b407bc5 | 979 | OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"), |
3e230fa1 | 980 | context_callback), |
d5d09d47 | 981 | OPT_BOOL('p', "show-function", &opt.funcname, |
4b407bc5 | 982 | N_("show a line with the function name before matches")), |
d5d09d47 | 983 | OPT_BOOL('W', "function-context", &opt.funcbody, |
4b407bc5 | 984 | N_("show the surrounding function")), |
3e230fa1 | 985 | OPT_GROUP(""), |
4b407bc5 NTND |
986 | OPT_CALLBACK('f', NULL, &opt, N_("file"), |
987 | N_("read patterns from file"), file_callback), | |
203c8533 DL |
988 | OPT_CALLBACK_F('e', NULL, &opt, N_("pattern"), |
989 | N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback), | |
990 | OPT_CALLBACK_F(0, "and", &opt, NULL, | |
991 | N_("combine patterns specified with -e"), | |
992 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback), | |
d5d09d47 | 993 | OPT_BOOL(0, "or", &dummy, ""), |
203c8533 DL |
994 | OPT_CALLBACK_F(0, "not", &opt, NULL, "", |
995 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback), | |
996 | OPT_CALLBACK_F('(', NULL, &opt, NULL, "", | |
997 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
998 | open_callback), | |
999 | OPT_CALLBACK_F(')', NULL, &opt, NULL, "", | |
1000 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
1001 | close_callback), | |
d52ee6e6 | 1002 | OPT__QUIET(&opt.status_only, |
4b407bc5 | 1003 | N_("indicate hit with exit status without output")), |
d5d09d47 | 1004 | OPT_BOOL(0, "all-match", &opt.all_match, |
4b407bc5 | 1005 | N_("show only matches from files that match all patterns")), |
3e230fa1 | 1006 | OPT_GROUP(""), |
0af88c15 | 1007 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
4b407bc5 | 1008 | N_("pager"), N_("show matching files in the pager"), |
caf2de33 NTND |
1009 | PARSE_OPT_OPTARG | PARSE_OPT_NOCOMPLETE, |
1010 | NULL, (intptr_t)default_pager }, | |
1011 | OPT_BOOL_F(0, "ext-grep", &external_grep_allowed__ignored, | |
1012 | N_("allow calling of grep(1) (ignored by this build)"), | |
1013 | PARSE_OPT_NOCOMPLETE), | |
68437ede CL |
1014 | OPT_INTEGER('m', "max-count", &opt.max_count, |
1015 | N_("maximum number of results per file")), | |
3e230fa1 RS |
1016 | OPT_END() |
1017 | }; | |
9725c8dd | 1018 | grep_prefix = prefix; |
5010cb5f | 1019 | |
9725c8dd | 1020 | grep_init(&opt, the_repository); |
72365bb4 | 1021 | git_config(grep_cmd_config, &opt); |
7e8f59d5 | 1022 | |
5010cb5f | 1023 | /* |
5acd64ed JH |
1024 | * If there is no -- then the paths must exist in the working |
1025 | * tree. If there is no explicit pattern specified with -e or | |
1026 | * -f, we take the first unrecognized non option to be the | |
1027 | * pattern, but then what follows it must be zero or more | |
1028 | * valid refs up to the -- (if exists), and then existing | |
1029 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 1030 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 1031 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 1032 | */ |
37782920 | 1033 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 | 1034 | PARSE_OPT_KEEP_DASHDASH | |
44415499 | 1035 | PARSE_OPT_STOP_AT_NON_OPTION); |
3e230fa1 | 1036 | |
7cae7627 SY |
1037 | if (the_repository->gitdir) { |
1038 | prepare_repo_settings(the_repository); | |
1039 | the_repository->settings.command_requires_full_index = 0; | |
1040 | } | |
1041 | ||
ecd9ba61 TG |
1042 | if (use_index && !startup_info->have_repository) { |
1043 | int fallback = 0; | |
1044 | git_config_get_bool("grep.fallbacktonoindex", &fallback); | |
1045 | if (fallback) | |
1046 | use_index = 0; | |
1047 | else | |
1048 | /* die the same way as if we did it at the beginning */ | |
1049 | setup_git_directory(); | |
1050 | } | |
c56c48dd PB |
1051 | /* Ignore --recurse-submodules if --no-index is given or implied */ |
1052 | if (!use_index) | |
1053 | recurse_submodules = 0; | |
59332d13 | 1054 | |
1123c67c JK |
1055 | /* |
1056 | * skip a -- separator; we know it cannot be | |
1057 | * separating revisions from pathnames if | |
1058 | * we haven't even had any patterns yet | |
1059 | */ | |
1060 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
1061 | argv++; | |
1062 | argc--; | |
1063 | } | |
1064 | ||
3e230fa1 RS |
1065 | /* First unrecognized non-option token */ |
1066 | if (argc > 0 && !opt.pattern_list) { | |
1067 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
1068 | GREP_PATTERN); | |
1069 | argv++; | |
1070 | argc--; | |
5010cb5f | 1071 | } |
5acd64ed | 1072 | |
0af88c15 JS |
1073 | if (show_in_pager == default_pager) |
1074 | show_in_pager = git_pager(1); | |
678e484b | 1075 | if (show_in_pager) { |
e7b082a4 | 1076 | opt.color = 0; |
0af88c15 JS |
1077 | opt.name_only = 1; |
1078 | opt.null_following_name = 1; | |
1079 | opt.output_priv = &path_list; | |
1080 | opt.output = append_path; | |
0c72cead | 1081 | string_list_append(&path_list, show_in_pager); |
678e484b JS |
1082 | } |
1083 | ||
f9b9faf6 | 1084 | if (!opt.pattern_list) |
1a07e59c | 1085 | die(_("no pattern given")); |
5b594f45 | 1086 | |
9d8db06e TB |
1087 | /* --only-matching has no effect with --invert. */ |
1088 | if (opt.invert) | |
1089 | opt.only_matching = 0; | |
1090 | ||
b5b81136 JK |
1091 | /* |
1092 | * We have to find "--" in a separate pass, because its presence | |
1093 | * influences how we will parse arguments that come before it. | |
1094 | */ | |
1095 | for (i = 0; i < argc; i++) { | |
1096 | if (!strcmp(argv[i], "--")) { | |
1097 | seen_dashdash = 1; | |
1098 | break; | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | /* | |
1103 | * Resolve any rev arguments. If we have a dashdash, then everything up | |
1104 | * to it must resolve as a rev. If not, then we stop at the first | |
1105 | * non-rev and assume everything else is a path. | |
1106 | */ | |
131f3c96 | 1107 | allow_revs = use_index && !untracked; |
3e230fa1 | 1108 | for (i = 0; i < argc; i++) { |
5acd64ed | 1109 | const char *arg = argv[i]; |
1db11086 | 1110 | struct object_id oid; |
afa15f3c | 1111 | struct object_context oc; |
20d6421c JK |
1112 | struct object *object; |
1113 | ||
dca3b5f5 JT |
1114 | if (!strcmp(arg, "--")) { |
1115 | i++; | |
dca3b5f5 JT |
1116 | break; |
1117 | } | |
20d6421c | 1118 | |
131f3c96 | 1119 | if (!allow_revs) { |
d0ffc069 | 1120 | if (seen_dashdash) |
131f3c96 | 1121 | die(_("--no-index or --untracked cannot be used with revs")); |
d0ffc069 JK |
1122 | break; |
1123 | } | |
1124 | ||
3a7a698e NTND |
1125 | if (get_oid_with_context(the_repository, arg, |
1126 | GET_OID_RECORD_PATH, | |
e82caf38 | 1127 | &oid, &oc)) { |
b5b81136 JK |
1128 | if (seen_dashdash) |
1129 | die(_("unable to resolve revision: %s"), arg); | |
20d6421c | 1130 | break; |
b5b81136 | 1131 | } |
20d6421c | 1132 | |
c251c83d | 1133 | object = parse_object_or_die(&oid, arg); |
20d6421c JK |
1134 | if (!seen_dashdash) |
1135 | verify_non_filename(prefix, arg); | |
1136 | add_object_array_with_path(object, arg, &list, oc.mode, oc.path); | |
dc944b65 | 1137 | free(oc.path); |
1362671f | 1138 | } |
5acd64ed | 1139 | |
b5b81136 JK |
1140 | /* |
1141 | * Anything left over is presumed to be a path. But in the non-dashdash | |
1142 | * "do what I mean" case, we verify and complain when that isn't true. | |
1143 | */ | |
a0fe2b0d JK |
1144 | if (!seen_dashdash) { |
1145 | int j; | |
1146 | for (j = i; j < argc; j++) | |
131f3c96 | 1147 | verify_filename(prefix, argv[j], j == i && allow_revs); |
a0fe2b0d JK |
1148 | } |
1149 | ||
1150 | parse_pathspec(&pathspec, 0, | |
1151 | PATHSPEC_PREFER_CWD | | |
1152 | (opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0), | |
1153 | prefix, argv + i); | |
1154 | pathspec.max_depth = opt.max_depth; | |
1155 | pathspec.recursive = 1; | |
eef3df5a | 1156 | pathspec.recurse_submodules = !!recurse_submodules; |
a0fe2b0d | 1157 | |
56ceb64e JH |
1158 | if (recurse_submodules && untracked) |
1159 | die(_("--untracked not supported with --recurse-submodules")); | |
c441ea4e | 1160 | |
68437ede CL |
1161 | /* |
1162 | * Optimize out the case where the amount of matches is limited to zero. | |
1163 | * We do this to keep results consistent with GNU grep(1). | |
1164 | */ | |
1165 | if (opt.max_count == 0) | |
1166 | return 1; | |
1167 | ||
1184a95e | 1168 | if (show_in_pager) { |
fd6263fb NTND |
1169 | if (num_threads > 1) |
1170 | warning(_("invalid option combination, ignoring --threads")); | |
1171 | num_threads = 1; | |
1172 | } else if (!HAVE_THREADS && num_threads > 1) { | |
d1edee4a | 1173 | warning(_("no threads support, ignoring --threads")); |
fd6263fb NTND |
1174 | num_threads = 1; |
1175 | } else if (num_threads < 0) | |
1176 | die(_("invalid number of threads specified (%d)"), num_threads); | |
1177 | else if (num_threads == 0) | |
f1928f04 | 1178 | num_threads = HAVE_THREADS ? online_cpus() : 1; |
53b8d931 | 1179 | |
fd6263fb NTND |
1180 | if (num_threads > 1) { |
1181 | if (!HAVE_THREADS) | |
1182 | BUG("Somebody got num_threads calculation wrong!"); | |
1183 | if (!(opt.name_only || opt.unmatch_name_only || opt.count) | |
1184 | && (opt.pre_context || opt.post_context || | |
1185 | opt.file_break || opt.funcbody)) | |
1186 | skip_first_line = 1; | |
c441ea4e MT |
1187 | |
1188 | /* | |
6c307626 MT |
1189 | * Pre-read gitmodules (if not read already) and force eager |
1190 | * initialization of packed_git to prevent racy lazy | |
1191 | * reading/initialization once worker threads are started. | |
c441ea4e MT |
1192 | */ |
1193 | if (recurse_submodules) | |
1194 | repo_read_gitmodules(the_repository, 1); | |
6c307626 MT |
1195 | if (startup_info->have_repository) |
1196 | (void)get_packed_git(the_repository); | |
c441ea4e | 1197 | |
fd6263fb | 1198 | start_threads(&opt); |
4002e87c | 1199 | } else { |
6d423dd5 ÆAB |
1200 | /* |
1201 | * The compiled patterns on the main path are only | |
1202 | * used when not using threading. Otherwise | |
fd6263fb | 1203 | * start_threads() above calls compile_grep_patterns() |
6d423dd5 ÆAB |
1204 | * for each thread. |
1205 | */ | |
1206 | compile_grep_patterns(&opt); | |
53b8d931 | 1207 | } |
53b8d931 | 1208 | |
678e484b | 1209 | if (show_in_pager && (cached || list.nr)) |
e4fe4ba5 | 1210 | die(_("--open-files-in-pager only works on the worktree")); |
678e484b JS |
1211 | |
1212 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1213 | const char *pager = path_list.items[0].string; | |
1214 | int len = strlen(pager); | |
1215 | ||
1216 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1217 | pager += len - 4; | |
1218 | ||
f7febbea JS |
1219 | if (opt.ignore_case && !strcmp("less", pager)) |
1220 | string_list_append(&path_list, "-I"); | |
1221 | ||
678e484b JS |
1222 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { |
1223 | struct strbuf buf = STRBUF_INIT; | |
1224 | strbuf_addf(&buf, "+/%s%s", | |
1225 | strcmp("less", pager) ? "" : "*", | |
1226 | opt.pattern_list->pattern); | |
b202e51b ÆAB |
1227 | string_list_append_nodup(&path_list, |
1228 | strbuf_detach(&buf, NULL)); | |
678e484b JS |
1229 | } |
1230 | } | |
1231 | ||
c2048f0b | 1232 | if (!show_in_pager && !opt.status_only) |
678e484b JS |
1233 | setup_pager(); |
1234 | ||
a699367b JNA |
1235 | die_for_incompatible_opt3(!use_index, "--no-index", |
1236 | untracked, "--untracked", | |
1237 | cached, "--cached"); | |
0c5d83b2 | 1238 | |
0a93fb8a | 1239 | if (!use_index || untracked) { |
0a93fb8a | 1240 | int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude; |
85975c0c | 1241 | hit = grep_directory(&opt, &pathspec, use_exclude, use_index); |
dbfae86a | 1242 | } else if (0 <= opt_exclude) { |
1a07e59c | 1243 | die(_("--[no-]exclude-standard cannot be used for tracked contents")); |
685359cf | 1244 | } else if (!list.nr) { |
6577f542 NTND |
1245 | if (!cached) |
1246 | setup_work_tree(); | |
5b594f45 | 1247 | |
dba093dd | 1248 | hit = grep_cache(&opt, &pathspec, cached); |
685359cf JS |
1249 | } else { |
1250 | if (cached) | |
1a07e59c | 1251 | die(_("both --cached and trees are given")); |
f9ee2fcd | 1252 | |
6856077a | 1253 | hit = grep_objects(&opt, &pathspec, &list); |
5010cb5f | 1254 | } |
5b594f45 | 1255 | |
fd6263fb | 1256 | if (num_threads > 1) |
5b594f45 | 1257 | hit |= wait_all(); |
678e484b JS |
1258 | if (hit && show_in_pager) |
1259 | run_pager(&opt, prefix); | |
7861fa07 | 1260 | clear_pathspec(&pathspec); |
b202e51b | 1261 | string_list_clear(&path_list, 0); |
b48fb5b6 | 1262 | free_grep_patterns(&opt); |
96c10125 | 1263 | object_array_clear(&list); |
dd45471a | 1264 | free_repos(); |
5010cb5f JH |
1265 | return !hit; |
1266 | } |