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Commit | Line | Data |
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5010cb5f JH |
1 | /* |
2 | * Builtin "git grep" | |
3 | * | |
4 | * Copyright (c) 2006 Junio C Hamano | |
5 | */ | |
6 | #include "cache.h" | |
7 | #include "blob.h" | |
8 | #include "tree.h" | |
9 | #include "commit.h" | |
10 | #include "tag.h" | |
1362671f | 11 | #include "tree-walk.h" |
5010cb5f | 12 | #include "builtin.h" |
3e230fa1 | 13 | #include "parse-options.h" |
678e484b JS |
14 | #include "string-list.h" |
15 | #include "run-command.h" | |
60ecac98 | 16 | #include "userdiff.h" |
83b5d2f5 | 17 | #include "grep.h" |
493b7a08 | 18 | #include "quote.h" |
59332d13 | 19 | #include "dir.h" |
64acde94 | 20 | #include "pathspec.h" |
0281e487 | 21 | #include "submodule.h" |
74ed4371 | 22 | #include "submodule-config.h" |
5b594f45 | 23 | |
3e230fa1 | 24 | static char const * const grep_usage[] = { |
9c9b4f2f | 25 | N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), |
3e230fa1 RS |
26 | NULL |
27 | }; | |
28 | ||
0281e487 BW |
29 | static const char *super_prefix; |
30 | static int recurse_submodules; | |
31 | static struct argv_array submodule_options = ARGV_ARRAY_INIT; | |
74ed4371 | 32 | static const char *parent_basename; |
0281e487 BW |
33 | |
34 | static int grep_submodule_launch(struct grep_opt *opt, | |
35 | const struct grep_source *gs); | |
36 | ||
89f09dd3 VL |
37 | #define GREP_NUM_THREADS_DEFAULT 8 |
38 | static int num_threads; | |
5b594f45 FK |
39 | |
40 | #ifndef NO_PTHREADS | |
89f09dd3 | 41 | static pthread_t *threads; |
5b594f45 | 42 | |
5b594f45 FK |
43 | /* We use one producer thread and THREADS consumer |
44 | * threads. The producer adds struct work_items to 'todo' and the | |
45 | * consumers pick work items from the same array. | |
46 | */ | |
9cba13ca | 47 | struct work_item { |
8f24a632 | 48 | struct grep_source source; |
5b594f45 FK |
49 | char done; |
50 | struct strbuf out; | |
51 | }; | |
52 | ||
53 | /* In the range [todo_done, todo_start) in 'todo' we have work_items | |
54 | * that have been or are processed by a consumer thread. We haven't | |
55 | * written the result for these to stdout yet. | |
56 | * | |
57 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
58 | * up by a consumer thread. | |
59 | * | |
60 | * The ranges are modulo TODO_SIZE. | |
61 | */ | |
62 | #define TODO_SIZE 128 | |
63 | static struct work_item todo[TODO_SIZE]; | |
64 | static int todo_start; | |
65 | static int todo_end; | |
66 | static int todo_done; | |
67 | ||
68 | /* Has all work items been added? */ | |
69 | static int all_work_added; | |
70 | ||
71 | /* This lock protects all the variables above. */ | |
72 | static pthread_mutex_t grep_mutex; | |
73 | ||
1487a12b JH |
74 | static inline void grep_lock(void) |
75 | { | |
89f09dd3 | 76 | if (num_threads) |
1487a12b JH |
77 | pthread_mutex_lock(&grep_mutex); |
78 | } | |
79 | ||
80 | static inline void grep_unlock(void) | |
81 | { | |
89f09dd3 | 82 | if (num_threads) |
1487a12b JH |
83 | pthread_mutex_unlock(&grep_mutex); |
84 | } | |
85 | ||
5b594f45 FK |
86 | /* Signalled when a new work_item is added to todo. */ |
87 | static pthread_cond_t cond_add; | |
88 | ||
89 | /* Signalled when the result from one work_item is written to | |
90 | * stdout. | |
91 | */ | |
92 | static pthread_cond_t cond_write; | |
93 | ||
94 | /* Signalled when we are finished with everything. */ | |
95 | static pthread_cond_t cond_result; | |
96 | ||
08303c36 | 97 | static int skip_first_line; |
431d6e7b | 98 | |
9dd5245c | 99 | static void add_work(struct grep_opt *opt, enum grep_source_type type, |
55c61688 | 100 | const char *name, const char *path, const void *id) |
5b594f45 FK |
101 | { |
102 | grep_lock(); | |
103 | ||
104 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
105 | pthread_cond_wait(&cond_write, &grep_mutex); | |
106 | } | |
107 | ||
55c61688 | 108 | grep_source_init(&todo[todo_end].source, type, name, path, id); |
9dd5245c JK |
109 | if (opt->binary != GREP_BINARY_TEXT) |
110 | grep_source_load_driver(&todo[todo_end].source); | |
5b594f45 FK |
111 | todo[todo_end].done = 0; |
112 | strbuf_reset(&todo[todo_end].out); | |
113 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
114 | ||
115 | pthread_cond_signal(&cond_add); | |
116 | grep_unlock(); | |
117 | } | |
118 | ||
119 | static struct work_item *get_work(void) | |
120 | { | |
121 | struct work_item *ret; | |
122 | ||
123 | grep_lock(); | |
124 | while (todo_start == todo_end && !all_work_added) { | |
125 | pthread_cond_wait(&cond_add, &grep_mutex); | |
126 | } | |
127 | ||
128 | if (todo_start == todo_end && all_work_added) { | |
129 | ret = NULL; | |
130 | } else { | |
131 | ret = &todo[todo_start]; | |
132 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
133 | } | |
134 | grep_unlock(); | |
135 | return ret; | |
136 | } | |
137 | ||
5b594f45 FK |
138 | static void work_done(struct work_item *w) |
139 | { | |
140 | int old_done; | |
141 | ||
142 | grep_lock(); | |
143 | w->done = 1; | |
144 | old_done = todo_done; | |
145 | for(; todo[todo_done].done && todo_done != todo_start; | |
146 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
147 | w = &todo[todo_done]; | |
431d6e7b | 148 | if (w->out.len) { |
08303c36 RS |
149 | const char *p = w->out.buf; |
150 | size_t len = w->out.len; | |
151 | ||
152 | /* Skip the leading hunk mark of the first file. */ | |
153 | if (skip_first_line) { | |
154 | while (len) { | |
155 | len--; | |
156 | if (*p++ == '\n') | |
157 | break; | |
158 | } | |
159 | skip_first_line = 0; | |
160 | } | |
161 | ||
162 | write_or_die(1, p, len); | |
431d6e7b | 163 | } |
8f24a632 | 164 | grep_source_clear(&w->source); |
5b594f45 FK |
165 | } |
166 | ||
167 | if (old_done != todo_done) | |
168 | pthread_cond_signal(&cond_write); | |
169 | ||
170 | if (all_work_added && todo_done == todo_end) | |
171 | pthread_cond_signal(&cond_result); | |
172 | ||
173 | grep_unlock(); | |
174 | } | |
175 | ||
176 | static void *run(void *arg) | |
177 | { | |
178 | int hit = 0; | |
179 | struct grep_opt *opt = arg; | |
180 | ||
181 | while (1) { | |
182 | struct work_item *w = get_work(); | |
183 | if (!w) | |
184 | break; | |
185 | ||
186 | opt->output_priv = w; | |
0281e487 BW |
187 | if (w->source.type == GREP_SOURCE_SUBMODULE) |
188 | hit |= grep_submodule_launch(opt, &w->source); | |
189 | else | |
190 | hit |= grep_source(opt, &w->source); | |
8f24a632 | 191 | grep_source_clear_data(&w->source); |
5b594f45 FK |
192 | work_done(w); |
193 | } | |
bfac23d9 DM |
194 | free_grep_patterns(arg); |
195 | free(arg); | |
5b594f45 FK |
196 | |
197 | return (void*) (intptr_t) hit; | |
198 | } | |
199 | ||
200 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
201 | { | |
202 | struct work_item *w = opt->output_priv; | |
203 | strbuf_add(&w->out, buf, size); | |
204 | } | |
205 | ||
206 | static void start_threads(struct grep_opt *opt) | |
207 | { | |
208 | int i; | |
209 | ||
210 | pthread_mutex_init(&grep_mutex, NULL); | |
b3aeb285 | 211 | pthread_mutex_init(&grep_read_mutex, NULL); |
0579f91d | 212 | pthread_mutex_init(&grep_attr_mutex, NULL); |
5b594f45 FK |
213 | pthread_cond_init(&cond_add, NULL); |
214 | pthread_cond_init(&cond_write, NULL); | |
215 | pthread_cond_init(&cond_result, NULL); | |
78db6ea9 | 216 | grep_use_locks = 1; |
5b594f45 FK |
217 | |
218 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
219 | strbuf_init(&todo[i].out, 0); | |
220 | } | |
221 | ||
89f09dd3 VL |
222 | threads = xcalloc(num_threads, sizeof(*threads)); |
223 | for (i = 0; i < num_threads; i++) { | |
5b594f45 FK |
224 | int err; |
225 | struct grep_opt *o = grep_opt_dup(opt); | |
226 | o->output = strbuf_out; | |
208f5aa4 | 227 | o->debug = 0; |
5b594f45 FK |
228 | compile_grep_patterns(o); |
229 | err = pthread_create(&threads[i], NULL, run, o); | |
230 | ||
231 | if (err) | |
2fc5f9f1 | 232 | die(_("grep: failed to create thread: %s"), |
5b594f45 FK |
233 | strerror(err)); |
234 | } | |
235 | } | |
236 | ||
237 | static int wait_all(void) | |
238 | { | |
239 | int hit = 0; | |
240 | int i; | |
241 | ||
242 | grep_lock(); | |
243 | all_work_added = 1; | |
244 | ||
245 | /* Wait until all work is done. */ | |
246 | while (todo_done != todo_end) | |
247 | pthread_cond_wait(&cond_result, &grep_mutex); | |
248 | ||
249 | /* Wake up all the consumer threads so they can see that there | |
250 | * is no more work to do. | |
251 | */ | |
252 | pthread_cond_broadcast(&cond_add); | |
253 | grep_unlock(); | |
254 | ||
89f09dd3 | 255 | for (i = 0; i < num_threads; i++) { |
5b594f45 FK |
256 | void *h; |
257 | pthread_join(threads[i], &h); | |
258 | hit |= (int) (intptr_t) h; | |
259 | } | |
260 | ||
89f09dd3 VL |
261 | free(threads); |
262 | ||
5b594f45 | 263 | pthread_mutex_destroy(&grep_mutex); |
b3aeb285 | 264 | pthread_mutex_destroy(&grep_read_mutex); |
0579f91d | 265 | pthread_mutex_destroy(&grep_attr_mutex); |
5b594f45 FK |
266 | pthread_cond_destroy(&cond_add); |
267 | pthread_cond_destroy(&cond_write); | |
268 | pthread_cond_destroy(&cond_result); | |
78db6ea9 | 269 | grep_use_locks = 0; |
5b594f45 FK |
270 | |
271 | return hit; | |
272 | } | |
273 | #else /* !NO_PTHREADS */ | |
5b594f45 FK |
274 | |
275 | static int wait_all(void) | |
276 | { | |
277 | return 0; | |
278 | } | |
279 | #endif | |
280 | ||
15fabd1b JH |
281 | static int grep_cmd_config(const char *var, const char *value, void *cb) |
282 | { | |
283 | int st = grep_config(var, value, cb); | |
284 | if (git_color_default_config(var, value, cb) < 0) | |
285 | st = -1; | |
89f09dd3 VL |
286 | |
287 | if (!strcmp(var, "grep.threads")) { | |
288 | num_threads = git_config_int(var, value); | |
289 | if (num_threads < 0) | |
290 | die(_("invalid number of threads specified (%d) for %s"), | |
291 | num_threads, var); | |
292 | } | |
293 | ||
15fabd1b JH |
294 | return st; |
295 | } | |
296 | ||
1db11086 | 297 | static void *lock_and_read_oid_file(const struct object_id *oid, enum object_type *type, unsigned long *size) |
5f02d315 JH |
298 | { |
299 | void *data; | |
300 | ||
b3aeb285 | 301 | grep_read_lock(); |
1db11086 | 302 | data = read_sha1_file(oid->hash, type, size); |
b3aeb285 | 303 | grep_read_unlock(); |
5b594f45 FK |
304 | return data; |
305 | } | |
306 | ||
1db11086 | 307 | static int grep_oid(struct grep_opt *opt, const struct object_id *oid, |
55c61688 NTND |
308 | const char *filename, int tree_name_len, |
309 | const char *path) | |
5b594f45 FK |
310 | { |
311 | struct strbuf pathbuf = STRBUF_INIT; | |
5b594f45 | 312 | |
be80a239 | 313 | if (super_prefix) { |
0281e487 BW |
314 | strbuf_add(&pathbuf, filename, tree_name_len); |
315 | strbuf_addstr(&pathbuf, super_prefix); | |
316 | strbuf_addstr(&pathbuf, filename + tree_name_len); | |
5b594f45 FK |
317 | } else { |
318 | strbuf_addstr(&pathbuf, filename); | |
319 | } | |
320 | ||
be80a239 BW |
321 | if (opt->relative && opt->prefix_length) { |
322 | char *name = strbuf_detach(&pathbuf, NULL); | |
323 | quote_path_relative(name + tree_name_len, opt->prefix, &pathbuf); | |
324 | strbuf_insert(&pathbuf, 0, name, tree_name_len); | |
325 | free(name); | |
326 | } | |
327 | ||
5b594f45 | 328 | #ifndef NO_PTHREADS |
89f09dd3 | 329 | if (num_threads) { |
1db11086 | 330 | add_work(opt, GREP_SOURCE_SHA1, pathbuf.buf, path, oid); |
8f24a632 | 331 | strbuf_release(&pathbuf); |
5b594f45 FK |
332 | return 0; |
333 | } else | |
334 | #endif | |
335 | { | |
8f24a632 | 336 | struct grep_source gs; |
5b594f45 | 337 | int hit; |
5010cb5f | 338 | |
1db11086 | 339 | grep_source_init(&gs, GREP_SOURCE_SHA1, pathbuf.buf, path, oid); |
8f24a632 JK |
340 | strbuf_release(&pathbuf); |
341 | hit = grep_source(opt, &gs); | |
dc49cd76 | 342 | |
8f24a632 JK |
343 | grep_source_clear(&gs); |
344 | return hit; | |
5010cb5f | 345 | } |
5b594f45 FK |
346 | } |
347 | ||
348 | static int grep_file(struct grep_opt *opt, const char *filename) | |
349 | { | |
350 | struct strbuf buf = STRBUF_INIT; | |
5b594f45 | 351 | |
be80a239 BW |
352 | if (super_prefix) |
353 | strbuf_addstr(&buf, super_prefix); | |
354 | strbuf_addstr(&buf, filename); | |
355 | ||
0281e487 | 356 | if (opt->relative && opt->prefix_length) { |
be80a239 BW |
357 | char *name = strbuf_detach(&buf, NULL); |
358 | quote_path_relative(name, opt->prefix, &buf); | |
359 | free(name); | |
0281e487 | 360 | } |
5b594f45 FK |
361 | |
362 | #ifndef NO_PTHREADS | |
89f09dd3 | 363 | if (num_threads) { |
55c61688 | 364 | add_work(opt, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 | 365 | strbuf_release(&buf); |
5b594f45 FK |
366 | return 0; |
367 | } else | |
368 | #endif | |
369 | { | |
8f24a632 | 370 | struct grep_source gs; |
5b594f45 | 371 | int hit; |
5b594f45 | 372 | |
55c61688 | 373 | grep_source_init(&gs, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 JK |
374 | strbuf_release(&buf); |
375 | hit = grep_source(opt, &gs); | |
376 | ||
377 | grep_source_clear(&gs); | |
5b594f45 FK |
378 | return hit; |
379 | } | |
5010cb5f JH |
380 | } |
381 | ||
678e484b JS |
382 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
383 | { | |
384 | struct string_list *path_list = opt->output_priv; | |
385 | ||
386 | if (len == 1 && *(const char *)data == '\0') | |
387 | return; | |
0c72cead | 388 | string_list_append(path_list, xstrndup(data, len)); |
678e484b JS |
389 | } |
390 | ||
391 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
392 | { | |
393 | struct string_list *path_list = opt->output_priv; | |
850d2fec | 394 | struct child_process child = CHILD_PROCESS_INIT; |
678e484b JS |
395 | int i, status; |
396 | ||
397 | for (i = 0; i < path_list->nr; i++) | |
850d2fec JK |
398 | argv_array_push(&child.args, path_list->items[i].string); |
399 | child.dir = prefix; | |
400 | child.use_shell = 1; | |
678e484b | 401 | |
850d2fec | 402 | status = run_command(&child); |
678e484b JS |
403 | if (status) |
404 | exit(status); | |
678e484b JS |
405 | } |
406 | ||
0281e487 | 407 | static void compile_submodule_options(const struct grep_opt *opt, |
be80a239 | 408 | const char **argv, |
0281e487 BW |
409 | int cached, int untracked, |
410 | int opt_exclude, int use_index, | |
411 | int pattern_type_arg) | |
412 | { | |
413 | struct grep_pat *pattern; | |
0281e487 BW |
414 | |
415 | if (recurse_submodules) | |
416 | argv_array_push(&submodule_options, "--recurse-submodules"); | |
417 | ||
418 | if (cached) | |
419 | argv_array_push(&submodule_options, "--cached"); | |
420 | if (!use_index) | |
421 | argv_array_push(&submodule_options, "--no-index"); | |
422 | if (untracked) | |
423 | argv_array_push(&submodule_options, "--untracked"); | |
424 | if (opt_exclude > 0) | |
425 | argv_array_push(&submodule_options, "--exclude-standard"); | |
426 | ||
427 | if (opt->invert) | |
428 | argv_array_push(&submodule_options, "-v"); | |
429 | if (opt->ignore_case) | |
430 | argv_array_push(&submodule_options, "-i"); | |
431 | if (opt->word_regexp) | |
432 | argv_array_push(&submodule_options, "-w"); | |
433 | switch (opt->binary) { | |
434 | case GREP_BINARY_NOMATCH: | |
435 | argv_array_push(&submodule_options, "-I"); | |
436 | break; | |
437 | case GREP_BINARY_TEXT: | |
438 | argv_array_push(&submodule_options, "-a"); | |
439 | break; | |
440 | default: | |
441 | break; | |
442 | } | |
443 | if (opt->allow_textconv) | |
444 | argv_array_push(&submodule_options, "--textconv"); | |
445 | if (opt->max_depth != -1) | |
446 | argv_array_pushf(&submodule_options, "--max-depth=%d", | |
447 | opt->max_depth); | |
448 | if (opt->linenum) | |
449 | argv_array_push(&submodule_options, "-n"); | |
450 | if (!opt->pathname) | |
451 | argv_array_push(&submodule_options, "-h"); | |
452 | if (!opt->relative) | |
453 | argv_array_push(&submodule_options, "--full-name"); | |
454 | if (opt->name_only) | |
455 | argv_array_push(&submodule_options, "-l"); | |
456 | if (opt->unmatch_name_only) | |
457 | argv_array_push(&submodule_options, "-L"); | |
458 | if (opt->null_following_name) | |
459 | argv_array_push(&submodule_options, "-z"); | |
460 | if (opt->count) | |
461 | argv_array_push(&submodule_options, "-c"); | |
462 | if (opt->file_break) | |
463 | argv_array_push(&submodule_options, "--break"); | |
464 | if (opt->heading) | |
465 | argv_array_push(&submodule_options, "--heading"); | |
466 | if (opt->pre_context) | |
467 | argv_array_pushf(&submodule_options, "--before-context=%d", | |
468 | opt->pre_context); | |
469 | if (opt->post_context) | |
470 | argv_array_pushf(&submodule_options, "--after-context=%d", | |
471 | opt->post_context); | |
472 | if (opt->funcname) | |
473 | argv_array_push(&submodule_options, "-p"); | |
474 | if (opt->funcbody) | |
475 | argv_array_push(&submodule_options, "-W"); | |
476 | if (opt->all_match) | |
477 | argv_array_push(&submodule_options, "--all-match"); | |
478 | if (opt->debug) | |
479 | argv_array_push(&submodule_options, "--debug"); | |
480 | if (opt->status_only) | |
481 | argv_array_push(&submodule_options, "-q"); | |
482 | ||
483 | switch (pattern_type_arg) { | |
484 | case GREP_PATTERN_TYPE_BRE: | |
485 | argv_array_push(&submodule_options, "-G"); | |
486 | break; | |
487 | case GREP_PATTERN_TYPE_ERE: | |
488 | argv_array_push(&submodule_options, "-E"); | |
489 | break; | |
490 | case GREP_PATTERN_TYPE_FIXED: | |
491 | argv_array_push(&submodule_options, "-F"); | |
492 | break; | |
493 | case GREP_PATTERN_TYPE_PCRE: | |
494 | argv_array_push(&submodule_options, "-P"); | |
495 | break; | |
496 | case GREP_PATTERN_TYPE_UNSPECIFIED: | |
497 | break; | |
498 | } | |
499 | ||
500 | for (pattern = opt->pattern_list; pattern != NULL; | |
501 | pattern = pattern->next) { | |
502 | switch (pattern->token) { | |
503 | case GREP_PATTERN: | |
504 | argv_array_pushf(&submodule_options, "-e%s", | |
505 | pattern->pattern); | |
506 | break; | |
507 | case GREP_AND: | |
508 | case GREP_OPEN_PAREN: | |
509 | case GREP_CLOSE_PAREN: | |
510 | case GREP_NOT: | |
511 | case GREP_OR: | |
512 | argv_array_push(&submodule_options, pattern->pattern); | |
513 | break; | |
514 | /* BODY and HEAD are not used by git-grep */ | |
515 | case GREP_PATTERN_BODY: | |
516 | case GREP_PATTERN_HEAD: | |
517 | break; | |
518 | } | |
519 | } | |
520 | ||
521 | /* | |
522 | * Limit number of threads for child process to use. | |
523 | * This is to prevent potential fork-bomb behavior of git-grep as each | |
524 | * submodule process has its own thread pool. | |
525 | */ | |
526 | argv_array_pushf(&submodule_options, "--threads=%d", | |
527 | (num_threads + 1) / 2); | |
528 | ||
529 | /* Add Pathspecs */ | |
530 | argv_array_push(&submodule_options, "--"); | |
be80a239 BW |
531 | for (; *argv; argv++) |
532 | argv_array_push(&submodule_options, *argv); | |
0281e487 BW |
533 | } |
534 | ||
535 | /* | |
536 | * Launch child process to grep contents of a submodule | |
537 | */ | |
538 | static int grep_submodule_launch(struct grep_opt *opt, | |
539 | const struct grep_source *gs) | |
540 | { | |
541 | struct child_process cp = CHILD_PROCESS_INIT; | |
542 | int status, i; | |
74ed4371 BW |
543 | const char *end_of_base; |
544 | const char *name; | |
2225e1ea | 545 | struct strbuf child_output = STRBUF_INIT; |
0281e487 | 546 | |
74ed4371 BW |
547 | end_of_base = strchr(gs->name, ':'); |
548 | if (gs->identifier && end_of_base) | |
549 | name = end_of_base + 1; | |
550 | else | |
551 | name = gs->name; | |
552 | ||
0281e487 | 553 | prepare_submodule_repo_env(&cp.env_array); |
e6fac7f3 | 554 | argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT); |
0281e487 | 555 | |
be80a239 BW |
556 | if (opt->relative && opt->prefix_length) |
557 | argv_array_pushf(&cp.env_array, "%s=%s", | |
558 | GIT_TOPLEVEL_PREFIX_ENVIRONMENT, | |
559 | opt->prefix); | |
560 | ||
0281e487 BW |
561 | /* Add super prefix */ |
562 | argv_array_pushf(&cp.args, "--super-prefix=%s%s/", | |
563 | super_prefix ? super_prefix : "", | |
74ed4371 | 564 | name); |
0281e487 BW |
565 | argv_array_push(&cp.args, "grep"); |
566 | ||
74ed4371 BW |
567 | /* |
568 | * Add basename of parent project | |
569 | * When performing grep on a tree object the filename is prefixed | |
570 | * with the object's name: 'tree-name:filename'. In order to | |
571 | * provide uniformity of output we want to pass the name of the | |
572 | * parent project's object name to the submodule so the submodule can | |
573 | * prefix its output with the parent's name and not its own SHA1. | |
574 | */ | |
575 | if (gs->identifier && end_of_base) | |
576 | argv_array_pushf(&cp.args, "--parent-basename=%.*s", | |
577 | (int) (end_of_base - gs->name), | |
578 | gs->name); | |
579 | ||
0281e487 | 580 | /* Add options */ |
74ed4371 BW |
581 | for (i = 0; i < submodule_options.argc; i++) { |
582 | /* | |
583 | * If there is a tree identifier for the submodule, add the | |
584 | * rev after adding the submodule options but before the | |
585 | * pathspecs. To do this we listen for the '--' and insert the | |
586 | * sha1 before pushing the '--' onto the child process argv | |
587 | * array. | |
588 | */ | |
589 | if (gs->identifier && | |
590 | !strcmp("--", submodule_options.argv[i])) { | |
591 | argv_array_push(&cp.args, sha1_to_hex(gs->identifier)); | |
592 | } | |
593 | ||
0281e487 | 594 | argv_array_push(&cp.args, submodule_options.argv[i]); |
74ed4371 | 595 | } |
0281e487 BW |
596 | |
597 | cp.git_cmd = 1; | |
598 | cp.dir = gs->path; | |
599 | ||
600 | /* | |
601 | * Capture output to output buffer and check the return code from the | |
602 | * child process. A '0' indicates a hit, a '1' indicates no hit and | |
603 | * anything else is an error. | |
604 | */ | |
2225e1ea | 605 | status = capture_command(&cp, &child_output, 0); |
0281e487 BW |
606 | if (status && (status != 1)) { |
607 | /* flush the buffer */ | |
2225e1ea | 608 | write_or_die(1, child_output.buf, child_output.len); |
0281e487 BW |
609 | die("process for submodule '%s' failed with exit code: %d", |
610 | gs->name, status); | |
611 | } | |
612 | ||
2225e1ea BW |
613 | opt->output(opt, child_output.buf, child_output.len); |
614 | strbuf_release(&child_output); | |
0281e487 BW |
615 | /* invert the return code to make a hit equal to 1 */ |
616 | return !status; | |
617 | } | |
618 | ||
619 | /* | |
620 | * Prep grep structures for a submodule grep | |
621 | * sha1: the sha1 of the submodule or NULL if using the working tree | |
622 | * filename: name of the submodule including tree name of parent | |
623 | * path: location of the submodule | |
624 | */ | |
625 | static int grep_submodule(struct grep_opt *opt, const unsigned char *sha1, | |
626 | const char *filename, const char *path) | |
627 | { | |
628 | if (!is_submodule_initialized(path)) | |
629 | return 0; | |
15cdc647 | 630 | if (!is_submodule_populated_gently(path, NULL)) { |
e6fac7f3 BW |
631 | /* |
632 | * If searching history, check for the presense of the | |
633 | * submodule's gitdir before skipping the submodule. | |
634 | */ | |
635 | if (sha1) { | |
636 | const struct submodule *sub = | |
637 | submodule_from_path(null_sha1, path); | |
638 | if (sub) | |
639 | path = git_path("modules/%s", sub->name); | |
640 | ||
641 | if (!(is_directory(path) && is_git_directory(path))) | |
642 | return 0; | |
643 | } else { | |
644 | return 0; | |
645 | } | |
646 | } | |
0281e487 BW |
647 | |
648 | #ifndef NO_PTHREADS | |
649 | if (num_threads) { | |
650 | add_work(opt, GREP_SOURCE_SUBMODULE, filename, path, sha1); | |
651 | return 0; | |
652 | } else | |
653 | #endif | |
654 | { | |
2225e1ea | 655 | struct grep_source gs; |
0281e487 BW |
656 | int hit; |
657 | ||
2225e1ea | 658 | grep_source_init(&gs, GREP_SOURCE_SUBMODULE, |
0281e487 | 659 | filename, path, sha1); |
2225e1ea | 660 | hit = grep_submodule_launch(opt, &gs); |
0281e487 | 661 | |
2225e1ea | 662 | grep_source_clear(&gs); |
0281e487 BW |
663 | return hit; |
664 | } | |
665 | } | |
666 | ||
667 | static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, | |
668 | int cached) | |
5010cb5f JH |
669 | { |
670 | int hit = 0; | |
671 | int nr; | |
0281e487 BW |
672 | struct strbuf name = STRBUF_INIT; |
673 | int name_base_len = 0; | |
674 | if (super_prefix) { | |
675 | name_base_len = strlen(super_prefix); | |
676 | strbuf_addstr(&name, super_prefix); | |
677 | } | |
678 | ||
5010cb5f JH |
679 | read_cache(); |
680 | ||
681 | for (nr = 0; nr < active_nr; nr++) { | |
9c5e6c80 | 682 | const struct cache_entry *ce = active_cache[nr]; |
0281e487 BW |
683 | strbuf_setlen(&name, name_base_len); |
684 | strbuf_addstr(&name, ce->name); | |
685 | ||
686 | if (S_ISREG(ce->ce_mode) && | |
687 | match_pathspec(pathspec, name.buf, name.len, 0, NULL, | |
688 | S_ISDIR(ce->ce_mode) || | |
689 | S_ISGITLINK(ce->ce_mode))) { | |
690 | /* | |
691 | * If CE_VALID is on, we assume worktree file and its | |
692 | * cache entry are identical, even if worktree file has | |
693 | * been modified, so use cache version instead | |
694 | */ | |
695 | if (cached || (ce->ce_flags & CE_VALID) || | |
696 | ce_skip_worktree(ce)) { | |
697 | if (ce_stage(ce) || ce_intent_to_add(ce)) | |
698 | continue; | |
1db11086 | 699 | hit |= grep_oid(opt, &ce->oid, ce->name, |
0281e487 BW |
700 | 0, ce->name); |
701 | } else { | |
702 | hit |= grep_file(opt, ce->name); | |
703 | } | |
704 | } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && | |
705 | submodule_path_match(pathspec, name.buf, NULL)) { | |
706 | hit |= grep_submodule(opt, NULL, ce->name, ce->name); | |
707 | } else { | |
5010cb5f | 708 | continue; |
36f2587f | 709 | } |
0281e487 | 710 | |
36f2587f JH |
711 | if (ce_stage(ce)) { |
712 | do { | |
713 | nr++; | |
714 | } while (nr < active_nr && | |
715 | !strcmp(ce->name, active_cache[nr]->name)); | |
716 | nr--; /* compensate for loop control */ | |
717 | } | |
c8610a2e JH |
718 | if (hit && opt->status_only) |
719 | break; | |
5010cb5f | 720 | } |
0281e487 BW |
721 | |
722 | strbuf_release(&name); | |
5010cb5f JH |
723 | return hit; |
724 | } | |
725 | ||
f34bbc15 | 726 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, |
55c61688 NTND |
727 | struct tree_desc *tree, struct strbuf *base, int tn_len, |
728 | int check_attr) | |
5010cb5f | 729 | { |
d688cf07 NTND |
730 | int hit = 0; |
731 | enum interesting match = entry_not_interesting; | |
4c068a98 | 732 | struct name_entry entry; |
e5e062b6 | 733 | int old_baselen = base->len; |
74ed4371 BW |
734 | struct strbuf name = STRBUF_INIT; |
735 | int name_base_len = 0; | |
736 | if (super_prefix) { | |
737 | strbuf_addstr(&name, super_prefix); | |
738 | name_base_len = name.len; | |
739 | } | |
5010cb5f | 740 | |
4c068a98 | 741 | while (tree_entry(tree, &entry)) { |
0de16337 | 742 | int te_len = tree_entry_len(&entry); |
e5e062b6 | 743 | |
d688cf07 | 744 | if (match != all_entries_interesting) { |
74ed4371 BW |
745 | strbuf_addstr(&name, base->buf + tn_len); |
746 | match = tree_entry_interesting(&entry, &name, | |
747 | 0, pathspec); | |
748 | strbuf_setlen(&name, name_base_len); | |
749 | ||
d688cf07 | 750 | if (match == all_entries_not_interesting) |
97d0b74a | 751 | break; |
d688cf07 | 752 | if (match == entry_not_interesting) |
1376e507 NTND |
753 | continue; |
754 | } | |
5010cb5f | 755 | |
1376e507 | 756 | strbuf_add(base, entry.path, te_len); |
e0eb889f | 757 | |
1376e507 | 758 | if (S_ISREG(entry.mode)) { |
1db11086 | 759 | hit |= grep_oid(opt, entry.oid, base->buf, tn_len, |
55c61688 | 760 | check_attr ? base->buf + tn_len : NULL); |
74ed4371 | 761 | } else if (S_ISDIR(entry.mode)) { |
21666f1a | 762 | enum object_type type; |
5010cb5f JH |
763 | struct tree_desc sub; |
764 | void *data; | |
6fda5e51 LT |
765 | unsigned long size; |
766 | ||
1db11086 | 767 | data = lock_and_read_oid_file(entry.oid, &type, &size); |
5010cb5f | 768 | if (!data) |
2fc5f9f1 | 769 | die(_("unable to read tree (%s)"), |
7d924c91 | 770 | oid_to_hex(entry.oid)); |
1376e507 NTND |
771 | |
772 | strbuf_addch(base, '/'); | |
6fda5e51 | 773 | init_tree_desc(&sub, data, size); |
55c61688 NTND |
774 | hit |= grep_tree(opt, pathspec, &sub, base, tn_len, |
775 | check_attr); | |
5010cb5f | 776 | free(data); |
74ed4371 BW |
777 | } else if (recurse_submodules && S_ISGITLINK(entry.mode)) { |
778 | hit |= grep_submodule(opt, entry.oid->hash, base->buf, | |
779 | base->buf + tn_len); | |
5010cb5f | 780 | } |
74ed4371 | 781 | |
e5e062b6 NTND |
782 | strbuf_setlen(base, old_baselen); |
783 | ||
c8610a2e JH |
784 | if (hit && opt->status_only) |
785 | break; | |
5010cb5f | 786 | } |
74ed4371 BW |
787 | |
788 | strbuf_release(&name); | |
5010cb5f JH |
789 | return hit; |
790 | } | |
791 | ||
f34bbc15 | 792 | static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, |
9e0c3c4f | 793 | struct object *obj, const char *name, const char *path) |
5010cb5f | 794 | { |
1974632c | 795 | if (obj->type == OBJ_BLOB) |
1db11086 | 796 | return grep_oid(opt, &obj->oid, name, 0, path); |
1974632c | 797 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
798 | struct tree_desc tree; |
799 | void *data; | |
6fda5e51 | 800 | unsigned long size; |
e5e062b6 NTND |
801 | struct strbuf base; |
802 | int hit, len; | |
803 | ||
b3aeb285 | 804 | grep_read_lock(); |
f2fd0760 | 805 | data = read_object_with_reference(obj->oid.hash, tree_type, |
6fda5e51 | 806 | &size, NULL); |
b3aeb285 | 807 | grep_read_unlock(); |
8cb5775b | 808 | |
5010cb5f | 809 | if (!data) |
f2fd0760 | 810 | die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); |
e5e062b6 | 811 | |
74ed4371 BW |
812 | /* Use parent's name as base when recursing submodules */ |
813 | if (recurse_submodules && parent_basename) | |
814 | name = parent_basename; | |
815 | ||
e5e062b6 NTND |
816 | len = name ? strlen(name) : 0; |
817 | strbuf_init(&base, PATH_MAX + len + 1); | |
818 | if (len) { | |
819 | strbuf_add(&base, name, len); | |
820 | strbuf_addch(&base, ':'); | |
821 | } | |
6fda5e51 | 822 | init_tree_desc(&tree, data, size); |
55c61688 NTND |
823 | hit = grep_tree(opt, pathspec, &tree, &base, base.len, |
824 | obj->type == OBJ_COMMIT); | |
e5e062b6 | 825 | strbuf_release(&base); |
5010cb5f JH |
826 | free(data); |
827 | return hit; | |
828 | } | |
2fc5f9f1 | 829 | die(_("unable to grep from object of type %s"), typename(obj->type)); |
5010cb5f JH |
830 | } |
831 | ||
f34bbc15 | 832 | static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, |
30d00c39 JN |
833 | const struct object_array *list) |
834 | { | |
835 | unsigned int i; | |
836 | int hit = 0; | |
837 | const unsigned int nr = list->nr; | |
838 | ||
839 | for (i = 0; i < nr; i++) { | |
840 | struct object *real_obj; | |
841 | real_obj = deref_tag(list->objects[i].item, NULL, 0); | |
74ed4371 BW |
842 | |
843 | /* load the gitmodules file for this rev */ | |
844 | if (recurse_submodules) { | |
845 | submodule_free(); | |
846 | gitmodules_config_sha1(real_obj->oid.hash); | |
847 | } | |
9e0c3c4f | 848 | if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { |
30d00c39 JN |
849 | hit = 1; |
850 | if (opt->status_only) | |
851 | break; | |
852 | } | |
853 | } | |
854 | return hit; | |
855 | } | |
856 | ||
dbfae86a | 857 | static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, |
85975c0c | 858 | int exc_std, int use_index) |
59332d13 JH |
859 | { |
860 | struct dir_struct dir; | |
861 | int i, hit = 0; | |
862 | ||
863 | memset(&dir, 0, sizeof(dir)); | |
85975c0c JK |
864 | if (!use_index) |
865 | dir.flags |= DIR_NO_GITLINKS; | |
0a93fb8a JH |
866 | if (exc_std) |
867 | setup_standard_excludes(&dir); | |
59332d13 | 868 | |
0d32c183 | 869 | fill_directory(&dir, &the_index, pathspec); |
59332d13 | 870 | for (i = 0; i < dir.nr; i++) { |
ebb32893 | 871 | if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) |
9d8b831b | 872 | continue; |
59332d13 JH |
873 | hit |= grep_file(opt, dir.entries[i]->name); |
874 | if (hit && opt->status_only) | |
875 | break; | |
876 | } | |
59332d13 JH |
877 | return hit; |
878 | } | |
879 | ||
ff3c7f9a RS |
880 | static int context_callback(const struct option *opt, const char *arg, |
881 | int unset) | |
3e230fa1 RS |
882 | { |
883 | struct grep_opt *grep_opt = opt->value; | |
884 | int value; | |
885 | const char *endp; | |
886 | ||
887 | if (unset) { | |
888 | grep_opt->pre_context = grep_opt->post_context = 0; | |
889 | return 0; | |
890 | } | |
891 | value = strtol(arg, (char **)&endp, 10); | |
892 | if (*endp) { | |
2fc5f9f1 | 893 | return error(_("switch `%c' expects a numerical value"), |
3e230fa1 RS |
894 | opt->short_name); |
895 | } | |
896 | grep_opt->pre_context = grep_opt->post_context = value; | |
897 | return 0; | |
898 | } | |
899 | ||
ff3c7f9a | 900 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
901 | { |
902 | struct grep_opt *grep_opt = opt->value; | |
c41dd2fd | 903 | int from_stdin = !strcmp(arg, "-"); |
3e230fa1 RS |
904 | FILE *patterns; |
905 | int lno = 0; | |
cfe370c6 | 906 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 | 907 | |
c41dd2fd | 908 | patterns = from_stdin ? stdin : fopen(arg, "r"); |
3e230fa1 | 909 | if (!patterns) |
2fc5f9f1 | 910 | die_errno(_("cannot open '%s'"), arg); |
a5518431 | 911 | while (strbuf_getline(&sb, patterns) == 0) { |
3e230fa1 RS |
912 | /* ignore empty line like grep does */ |
913 | if (sb.len == 0) | |
914 | continue; | |
ed40a095 | 915 | |
ec830611 RS |
916 | append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno, |
917 | GREP_PATTERN); | |
3e230fa1 | 918 | } |
c41dd2fd RS |
919 | if (!from_stdin) |
920 | fclose(patterns); | |
3e230fa1 RS |
921 | strbuf_release(&sb); |
922 | return 0; | |
923 | } | |
924 | ||
ff3c7f9a | 925 | static int not_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
926 | { |
927 | struct grep_opt *grep_opt = opt->value; | |
928 | append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT); | |
929 | return 0; | |
930 | } | |
931 | ||
ff3c7f9a | 932 | static int and_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
933 | { |
934 | struct grep_opt *grep_opt = opt->value; | |
935 | append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND); | |
936 | return 0; | |
937 | } | |
938 | ||
ff3c7f9a | 939 | static int open_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
940 | { |
941 | struct grep_opt *grep_opt = opt->value; | |
942 | append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN); | |
943 | return 0; | |
944 | } | |
945 | ||
ff3c7f9a | 946 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
947 | { |
948 | struct grep_opt *grep_opt = opt->value; | |
949 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); | |
950 | return 0; | |
951 | } | |
952 | ||
ff3c7f9a RS |
953 | static int pattern_callback(const struct option *opt, const char *arg, |
954 | int unset) | |
3e230fa1 RS |
955 | { |
956 | struct grep_opt *grep_opt = opt->value; | |
957 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); | |
958 | return 0; | |
959 | } | |
5010cb5f | 960 | |
a633fca0 | 961 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 962 | { |
5010cb5f | 963 | int hit = 0; |
0a93fb8a | 964 | int cached = 0, untracked = 0, opt_exclude = -1; |
5acd64ed | 965 | int seen_dashdash = 0; |
bbc09c22 | 966 | int external_grep_allowed__ignored; |
0af88c15 | 967 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 968 | struct grep_opt opt; |
3cd47459 | 969 | struct object_array list = OBJECT_ARRAY_INIT; |
f34bbc15 | 970 | struct pathspec pathspec; |
183113a5 | 971 | struct string_list path_list = STRING_LIST_INIT_NODUP; |
5acd64ed | 972 | int i; |
3e230fa1 | 973 | int dummy; |
ff38d1a9 | 974 | int use_index = 1; |
84befcd0 | 975 | int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; |
131f3c96 | 976 | int allow_revs; |
cca2c172 | 977 | |
3e230fa1 | 978 | struct option options[] = { |
d5d09d47 | 979 | OPT_BOOL(0, "cached", &cached, |
4b407bc5 | 980 | N_("search in index instead of in the work tree")), |
cbb08c2e | 981 | OPT_NEGBIT(0, "no-index", &use_index, |
f63cf8c9 | 982 | N_("find in contents not managed by git"), 1), |
d5d09d47 | 983 | OPT_BOOL(0, "untracked", &untracked, |
4b407bc5 | 984 | N_("search in both tracked and untracked files")), |
0a93fb8a | 985 | OPT_SET_INT(0, "exclude-standard", &opt_exclude, |
77fdb8a8 | 986 | N_("ignore files specified via '.gitignore'"), 1), |
0281e487 | 987 | OPT_BOOL(0, "recurse-submodules", &recurse_submodules, |
4fb1c6aa | 988 | N_("recursively search in each submodule")), |
74ed4371 BW |
989 | OPT_STRING(0, "parent-basename", &parent_basename, |
990 | N_("basename"), | |
991 | N_("prepend parent project's basename to output")), | |
3e230fa1 | 992 | OPT_GROUP(""), |
d5d09d47 | 993 | OPT_BOOL('v', "invert-match", &opt.invert, |
4b407bc5 | 994 | N_("show non-matching lines")), |
d5d09d47 | 995 | OPT_BOOL('i', "ignore-case", &opt.ignore_case, |
4b407bc5 | 996 | N_("case insensitive matching")), |
d5d09d47 | 997 | OPT_BOOL('w', "word-regexp", &opt.word_regexp, |
4b407bc5 | 998 | N_("match patterns only at word boundaries")), |
3e230fa1 | 999 | OPT_SET_INT('a', "text", &opt.binary, |
4b407bc5 | 1000 | N_("process binary files as text"), GREP_BINARY_TEXT), |
3e230fa1 | 1001 | OPT_SET_INT('I', NULL, &opt.binary, |
4b407bc5 | 1002 | N_("don't match patterns in binary files"), |
3e230fa1 | 1003 | GREP_BINARY_NOMATCH), |
335ec3bf JK |
1004 | OPT_BOOL(0, "textconv", &opt.allow_textconv, |
1005 | N_("process binary files with textconv filters")), | |
4b407bc5 NTND |
1006 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"), |
1007 | N_("descend at most <depth> levels"), PARSE_OPT_NONEG, | |
a91f453f | 1008 | NULL, 1 }, |
3e230fa1 | 1009 | OPT_GROUP(""), |
84befcd0 | 1010 | OPT_SET_INT('E', "extended-regexp", &pattern_type_arg, |
4b407bc5 | 1011 | N_("use extended POSIX regular expressions"), |
84befcd0 S |
1012 | GREP_PATTERN_TYPE_ERE), |
1013 | OPT_SET_INT('G', "basic-regexp", &pattern_type_arg, | |
4b407bc5 | 1014 | N_("use basic POSIX regular expressions (default)"), |
84befcd0 S |
1015 | GREP_PATTERN_TYPE_BRE), |
1016 | OPT_SET_INT('F', "fixed-strings", &pattern_type_arg, | |
4b407bc5 | 1017 | N_("interpret patterns as fixed strings"), |
84befcd0 S |
1018 | GREP_PATTERN_TYPE_FIXED), |
1019 | OPT_SET_INT('P', "perl-regexp", &pattern_type_arg, | |
4b407bc5 | 1020 | N_("use Perl-compatible regular expressions"), |
84befcd0 | 1021 | GREP_PATTERN_TYPE_PCRE), |
3e230fa1 | 1022 | OPT_GROUP(""), |
d5d09d47 | 1023 | OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), |
4b407bc5 NTND |
1024 | OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), |
1025 | OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), | |
3e230fa1 | 1026 | OPT_NEGBIT(0, "full-name", &opt.relative, |
4b407bc5 | 1027 | N_("show filenames relative to top directory"), 1), |
d5d09d47 | 1028 | OPT_BOOL('l', "files-with-matches", &opt.name_only, |
4b407bc5 | 1029 | N_("show only filenames instead of matching lines")), |
d5d09d47 | 1030 | OPT_BOOL(0, "name-only", &opt.name_only, |
4b407bc5 | 1031 | N_("synonym for --files-with-matches")), |
d5d09d47 | 1032 | OPT_BOOL('L', "files-without-match", |
3e230fa1 | 1033 | &opt.unmatch_name_only, |
4b407bc5 | 1034 | N_("show only the names of files without match")), |
d5d09d47 | 1035 | OPT_BOOL('z', "null", &opt.null_following_name, |
4b407bc5 | 1036 | N_("print NUL after filenames")), |
d5d09d47 | 1037 | OPT_BOOL('c', "count", &opt.count, |
4b407bc5 NTND |
1038 | N_("show the number of matches instead of matching lines")), |
1039 | OPT__COLOR(&opt.color, N_("highlight matches")), | |
d5d09d47 | 1040 | OPT_BOOL(0, "break", &opt.file_break, |
4b407bc5 | 1041 | N_("print empty line between matches from different files")), |
d5d09d47 | 1042 | OPT_BOOL(0, "heading", &opt.heading, |
4b407bc5 | 1043 | N_("show filename only once above matches from same file")), |
3e230fa1 | 1044 | OPT_GROUP(""), |
4b407bc5 NTND |
1045 | OPT_CALLBACK('C', "context", &opt, N_("n"), |
1046 | N_("show <n> context lines before and after matches"), | |
3e230fa1 | 1047 | context_callback), |
317f63c2 | 1048 | OPT_INTEGER('B', "before-context", &opt.pre_context, |
4b407bc5 | 1049 | N_("show <n> context lines before matches")), |
317f63c2 | 1050 | OPT_INTEGER('A', "after-context", &opt.post_context, |
4b407bc5 | 1051 | N_("show <n> context lines after matches")), |
89f09dd3 VL |
1052 | OPT_INTEGER(0, "threads", &num_threads, |
1053 | N_("use <n> worker threads")), | |
4b407bc5 | 1054 | OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"), |
3e230fa1 | 1055 | context_callback), |
d5d09d47 | 1056 | OPT_BOOL('p', "show-function", &opt.funcname, |
4b407bc5 | 1057 | N_("show a line with the function name before matches")), |
d5d09d47 | 1058 | OPT_BOOL('W', "function-context", &opt.funcbody, |
4b407bc5 | 1059 | N_("show the surrounding function")), |
3e230fa1 | 1060 | OPT_GROUP(""), |
4b407bc5 NTND |
1061 | OPT_CALLBACK('f', NULL, &opt, N_("file"), |
1062 | N_("read patterns from file"), file_callback), | |
1063 | { OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"), | |
1064 | N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback }, | |
3e230fa1 | 1065 | { OPTION_CALLBACK, 0, "and", &opt, NULL, |
4b407bc5 | 1066 | N_("combine patterns specified with -e"), |
3e230fa1 | 1067 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, |
d5d09d47 | 1068 | OPT_BOOL(0, "or", &dummy, ""), |
3e230fa1 RS |
1069 | { OPTION_CALLBACK, 0, "not", &opt, NULL, "", |
1070 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, | |
1071 | { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", | |
1072 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
1073 | open_callback }, | |
1074 | { OPTION_CALLBACK, ')', NULL, &opt, NULL, "", | |
1075 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
1076 | close_callback }, | |
d52ee6e6 | 1077 | OPT__QUIET(&opt.status_only, |
4b407bc5 | 1078 | N_("indicate hit with exit status without output")), |
d5d09d47 | 1079 | OPT_BOOL(0, "all-match", &opt.all_match, |
4b407bc5 | 1080 | N_("show only matches from files that match all patterns")), |
17bf35a3 | 1081 | { OPTION_SET_INT, 0, "debug", &opt.debug, NULL, |
3d7535e4 | 1082 | N_("show parse tree for grep expression"), |
17bf35a3 | 1083 | PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 }, |
3e230fa1 | 1084 | OPT_GROUP(""), |
0af88c15 | 1085 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
4b407bc5 | 1086 | N_("pager"), N_("show matching files in the pager"), |
0af88c15 | 1087 | PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, |
d5d09d47 SB |
1088 | OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored, |
1089 | N_("allow calling of grep(1) (ignored by this build)")), | |
3e230fa1 RS |
1090 | OPT_END() |
1091 | }; | |
5010cb5f | 1092 | |
15fabd1b JH |
1093 | init_grep_defaults(); |
1094 | git_config(grep_cmd_config, NULL); | |
1095 | grep_init(&opt, prefix); | |
0281e487 | 1096 | super_prefix = get_super_prefix(); |
7e8f59d5 | 1097 | |
5010cb5f | 1098 | /* |
5acd64ed JH |
1099 | * If there is no -- then the paths must exist in the working |
1100 | * tree. If there is no explicit pattern specified with -e or | |
1101 | * -f, we take the first unrecognized non option to be the | |
1102 | * pattern, but then what follows it must be zero or more | |
1103 | * valid refs up to the -- (if exists), and then existing | |
1104 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 1105 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 1106 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 1107 | */ |
37782920 | 1108 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 | 1109 | PARSE_OPT_KEEP_DASHDASH | |
44415499 | 1110 | PARSE_OPT_STOP_AT_NON_OPTION); |
c5c31d33 | 1111 | grep_commit_pattern_type(pattern_type_arg, &opt); |
3e230fa1 | 1112 | |
ecd9ba61 TG |
1113 | if (use_index && !startup_info->have_repository) { |
1114 | int fallback = 0; | |
1115 | git_config_get_bool("grep.fallbacktonoindex", &fallback); | |
1116 | if (fallback) | |
1117 | use_index = 0; | |
1118 | else | |
1119 | /* die the same way as if we did it at the beginning */ | |
1120 | setup_git_directory(); | |
1121 | } | |
59332d13 | 1122 | |
1123c67c JK |
1123 | /* |
1124 | * skip a -- separator; we know it cannot be | |
1125 | * separating revisions from pathnames if | |
1126 | * we haven't even had any patterns yet | |
1127 | */ | |
1128 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
1129 | argv++; | |
1130 | argc--; | |
1131 | } | |
1132 | ||
3e230fa1 RS |
1133 | /* First unrecognized non-option token */ |
1134 | if (argc > 0 && !opt.pattern_list) { | |
1135 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
1136 | GREP_PATTERN); | |
1137 | argv++; | |
1138 | argc--; | |
5010cb5f | 1139 | } |
5acd64ed | 1140 | |
0af88c15 JS |
1141 | if (show_in_pager == default_pager) |
1142 | show_in_pager = git_pager(1); | |
678e484b | 1143 | if (show_in_pager) { |
e7b082a4 | 1144 | opt.color = 0; |
0af88c15 JS |
1145 | opt.name_only = 1; |
1146 | opt.null_following_name = 1; | |
1147 | opt.output_priv = &path_list; | |
1148 | opt.output = append_path; | |
0c72cead | 1149 | string_list_append(&path_list, show_in_pager); |
678e484b JS |
1150 | } |
1151 | ||
f9b9faf6 | 1152 | if (!opt.pattern_list) |
2fc5f9f1 | 1153 | die(_("no pattern given.")); |
5183bf67 BC |
1154 | if (!opt.fixed && opt.ignore_case) |
1155 | opt.regflags |= REG_ICASE; | |
5b594f45 | 1156 | |
83b5d2f5 | 1157 | compile_grep_patterns(&opt); |
5acd64ed | 1158 | |
b5b81136 JK |
1159 | /* |
1160 | * We have to find "--" in a separate pass, because its presence | |
1161 | * influences how we will parse arguments that come before it. | |
1162 | */ | |
1163 | for (i = 0; i < argc; i++) { | |
1164 | if (!strcmp(argv[i], "--")) { | |
1165 | seen_dashdash = 1; | |
1166 | break; | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | /* | |
1171 | * Resolve any rev arguments. If we have a dashdash, then everything up | |
1172 | * to it must resolve as a rev. If not, then we stop at the first | |
1173 | * non-rev and assume everything else is a path. | |
1174 | */ | |
131f3c96 | 1175 | allow_revs = use_index && !untracked; |
3e230fa1 | 1176 | for (i = 0; i < argc; i++) { |
5acd64ed | 1177 | const char *arg = argv[i]; |
1db11086 | 1178 | struct object_id oid; |
afa15f3c | 1179 | struct object_context oc; |
20d6421c JK |
1180 | struct object *object; |
1181 | ||
dca3b5f5 JT |
1182 | if (!strcmp(arg, "--")) { |
1183 | i++; | |
dca3b5f5 JT |
1184 | break; |
1185 | } | |
20d6421c | 1186 | |
131f3c96 | 1187 | if (!allow_revs) { |
d0ffc069 | 1188 | if (seen_dashdash) |
131f3c96 | 1189 | die(_("--no-index or --untracked cannot be used with revs")); |
d0ffc069 JK |
1190 | break; |
1191 | } | |
1192 | ||
e1fae930 | 1193 | if (get_sha1_with_context(arg, 0, oid.hash, &oc)) { |
b5b81136 JK |
1194 | if (seen_dashdash) |
1195 | die(_("unable to resolve revision: %s"), arg); | |
20d6421c | 1196 | break; |
b5b81136 | 1197 | } |
20d6421c | 1198 | |
e1fae930 | 1199 | object = parse_object_or_die(oid.hash, arg); |
20d6421c JK |
1200 | if (!seen_dashdash) |
1201 | verify_non_filename(prefix, arg); | |
1202 | add_object_array_with_path(object, arg, &list, oc.mode, oc.path); | |
1362671f | 1203 | } |
5acd64ed | 1204 | |
b5b81136 JK |
1205 | /* |
1206 | * Anything left over is presumed to be a path. But in the non-dashdash | |
1207 | * "do what I mean" case, we verify and complain when that isn't true. | |
1208 | */ | |
a0fe2b0d JK |
1209 | if (!seen_dashdash) { |
1210 | int j; | |
1211 | for (j = i; j < argc; j++) | |
131f3c96 | 1212 | verify_filename(prefix, argv[j], j == i && allow_revs); |
a0fe2b0d JK |
1213 | } |
1214 | ||
1215 | parse_pathspec(&pathspec, 0, | |
1216 | PATHSPEC_PREFER_CWD | | |
1217 | (opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0), | |
1218 | prefix, argv + i); | |
1219 | pathspec.max_depth = opt.max_depth; | |
1220 | pathspec.recursive = 1; | |
1221 | ||
53b8d931 | 1222 | #ifndef NO_PTHREADS |
044b1f3c | 1223 | if (list.nr || cached || show_in_pager) |
89f09dd3 VL |
1224 | num_threads = 0; |
1225 | else if (num_threads == 0) | |
1226 | num_threads = GREP_NUM_THREADS_DEFAULT; | |
1227 | else if (num_threads < 0) | |
1228 | die(_("invalid number of threads specified (%d)"), num_threads); | |
53b8d931 | 1229 | #else |
89f09dd3 | 1230 | num_threads = 0; |
53b8d931 TR |
1231 | #endif |
1232 | ||
53b8d931 | 1233 | #ifndef NO_PTHREADS |
89f09dd3 | 1234 | if (num_threads) { |
50dd0f2f AY |
1235 | if (!(opt.name_only || opt.unmatch_name_only || opt.count) |
1236 | && (opt.pre_context || opt.post_context || | |
1237 | opt.file_break || opt.funcbody)) | |
53b8d931 TR |
1238 | skip_first_line = 1; |
1239 | start_threads(&opt); | |
1240 | } | |
1241 | #endif | |
1242 | ||
0281e487 BW |
1243 | if (recurse_submodules) { |
1244 | gitmodules_config(); | |
be80a239 | 1245 | compile_submodule_options(&opt, argv + i, cached, untracked, |
0281e487 BW |
1246 | opt_exclude, use_index, |
1247 | pattern_type_arg); | |
1248 | } | |
1249 | ||
678e484b | 1250 | if (show_in_pager && (cached || list.nr)) |
e4fe4ba5 | 1251 | die(_("--open-files-in-pager only works on the worktree")); |
678e484b JS |
1252 | |
1253 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1254 | const char *pager = path_list.items[0].string; | |
1255 | int len = strlen(pager); | |
1256 | ||
1257 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1258 | pager += len - 4; | |
1259 | ||
f7febbea JS |
1260 | if (opt.ignore_case && !strcmp("less", pager)) |
1261 | string_list_append(&path_list, "-I"); | |
1262 | ||
678e484b JS |
1263 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { |
1264 | struct strbuf buf = STRBUF_INIT; | |
1265 | strbuf_addf(&buf, "+/%s%s", | |
1266 | strcmp("less", pager) ? "" : "*", | |
1267 | opt.pattern_list->pattern); | |
0c72cead | 1268 | string_list_append(&path_list, buf.buf); |
678e484b JS |
1269 | strbuf_detach(&buf, NULL); |
1270 | } | |
1271 | } | |
1272 | ||
74ed4371 | 1273 | if (recurse_submodules && (!use_index || untracked)) |
0281e487 BW |
1274 | die(_("option not supported with --recurse-submodules.")); |
1275 | ||
c2048f0b | 1276 | if (!show_in_pager && !opt.status_only) |
678e484b JS |
1277 | setup_pager(); |
1278 | ||
0a93fb8a | 1279 | if (!use_index && (untracked || cached)) |
dbfae86a | 1280 | die(_("--cached or --untracked cannot be used with --no-index.")); |
678e484b | 1281 | |
0a93fb8a | 1282 | if (!use_index || untracked) { |
0a93fb8a | 1283 | int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude; |
85975c0c | 1284 | hit = grep_directory(&opt, &pathspec, use_exclude, use_index); |
dbfae86a | 1285 | } else if (0 <= opt_exclude) { |
9fddaf78 | 1286 | die(_("--[no-]exclude-standard cannot be used for tracked contents.")); |
685359cf | 1287 | } else if (!list.nr) { |
6577f542 NTND |
1288 | if (!cached) |
1289 | setup_work_tree(); | |
5b594f45 | 1290 | |
f34bbc15 | 1291 | hit = grep_cache(&opt, &pathspec, cached); |
685359cf JS |
1292 | } else { |
1293 | if (cached) | |
2fc5f9f1 | 1294 | die(_("both --cached and trees are given.")); |
f34bbc15 | 1295 | hit = grep_objects(&opt, &pathspec, &list); |
5010cb5f | 1296 | } |
5b594f45 | 1297 | |
89f09dd3 | 1298 | if (num_threads) |
5b594f45 | 1299 | hit |= wait_all(); |
678e484b JS |
1300 | if (hit && show_in_pager) |
1301 | run_pager(&opt, prefix); | |
7861fa07 | 1302 | clear_pathspec(&pathspec); |
b48fb5b6 | 1303 | free_grep_patterns(&opt); |
5010cb5f JH |
1304 | return !hit; |
1305 | } |