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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" |
5b594f45 | 22 | |
3e230fa1 | 23 | static char const * const grep_usage[] = { |
9c9b4f2f | 24 | N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), |
3e230fa1 RS |
25 | NULL |
26 | }; | |
27 | ||
0281e487 BW |
28 | static const char *super_prefix; |
29 | static int recurse_submodules; | |
30 | static struct argv_array submodule_options = ARGV_ARRAY_INIT; | |
31 | ||
32 | static int grep_submodule_launch(struct grep_opt *opt, | |
33 | const struct grep_source *gs); | |
34 | ||
89f09dd3 VL |
35 | #define GREP_NUM_THREADS_DEFAULT 8 |
36 | static int num_threads; | |
5b594f45 FK |
37 | |
38 | #ifndef NO_PTHREADS | |
89f09dd3 | 39 | static pthread_t *threads; |
5b594f45 | 40 | |
5b594f45 FK |
41 | /* We use one producer thread and THREADS consumer |
42 | * threads. The producer adds struct work_items to 'todo' and the | |
43 | * consumers pick work items from the same array. | |
44 | */ | |
9cba13ca | 45 | struct work_item { |
8f24a632 | 46 | struct grep_source source; |
5b594f45 FK |
47 | char done; |
48 | struct strbuf out; | |
49 | }; | |
50 | ||
51 | /* In the range [todo_done, todo_start) in 'todo' we have work_items | |
52 | * that have been or are processed by a consumer thread. We haven't | |
53 | * written the result for these to stdout yet. | |
54 | * | |
55 | * The work_items in [todo_start, todo_end) are waiting to be picked | |
56 | * up by a consumer thread. | |
57 | * | |
58 | * The ranges are modulo TODO_SIZE. | |
59 | */ | |
60 | #define TODO_SIZE 128 | |
61 | static struct work_item todo[TODO_SIZE]; | |
62 | static int todo_start; | |
63 | static int todo_end; | |
64 | static int todo_done; | |
65 | ||
66 | /* Has all work items been added? */ | |
67 | static int all_work_added; | |
68 | ||
69 | /* This lock protects all the variables above. */ | |
70 | static pthread_mutex_t grep_mutex; | |
71 | ||
1487a12b JH |
72 | static inline void grep_lock(void) |
73 | { | |
89f09dd3 | 74 | if (num_threads) |
1487a12b JH |
75 | pthread_mutex_lock(&grep_mutex); |
76 | } | |
77 | ||
78 | static inline void grep_unlock(void) | |
79 | { | |
89f09dd3 | 80 | if (num_threads) |
1487a12b JH |
81 | pthread_mutex_unlock(&grep_mutex); |
82 | } | |
83 | ||
5b594f45 FK |
84 | /* Signalled when a new work_item is added to todo. */ |
85 | static pthread_cond_t cond_add; | |
86 | ||
87 | /* Signalled when the result from one work_item is written to | |
88 | * stdout. | |
89 | */ | |
90 | static pthread_cond_t cond_write; | |
91 | ||
92 | /* Signalled when we are finished with everything. */ | |
93 | static pthread_cond_t cond_result; | |
94 | ||
08303c36 | 95 | static int skip_first_line; |
431d6e7b | 96 | |
9dd5245c | 97 | static void add_work(struct grep_opt *opt, enum grep_source_type type, |
55c61688 | 98 | const char *name, const char *path, const void *id) |
5b594f45 FK |
99 | { |
100 | grep_lock(); | |
101 | ||
102 | while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) { | |
103 | pthread_cond_wait(&cond_write, &grep_mutex); | |
104 | } | |
105 | ||
55c61688 | 106 | grep_source_init(&todo[todo_end].source, type, name, path, id); |
9dd5245c JK |
107 | if (opt->binary != GREP_BINARY_TEXT) |
108 | grep_source_load_driver(&todo[todo_end].source); | |
5b594f45 FK |
109 | todo[todo_end].done = 0; |
110 | strbuf_reset(&todo[todo_end].out); | |
111 | todo_end = (todo_end + 1) % ARRAY_SIZE(todo); | |
112 | ||
113 | pthread_cond_signal(&cond_add); | |
114 | grep_unlock(); | |
115 | } | |
116 | ||
117 | static struct work_item *get_work(void) | |
118 | { | |
119 | struct work_item *ret; | |
120 | ||
121 | grep_lock(); | |
122 | while (todo_start == todo_end && !all_work_added) { | |
123 | pthread_cond_wait(&cond_add, &grep_mutex); | |
124 | } | |
125 | ||
126 | if (todo_start == todo_end && all_work_added) { | |
127 | ret = NULL; | |
128 | } else { | |
129 | ret = &todo[todo_start]; | |
130 | todo_start = (todo_start + 1) % ARRAY_SIZE(todo); | |
131 | } | |
132 | grep_unlock(); | |
133 | return ret; | |
134 | } | |
135 | ||
5b594f45 FK |
136 | static void work_done(struct work_item *w) |
137 | { | |
138 | int old_done; | |
139 | ||
140 | grep_lock(); | |
141 | w->done = 1; | |
142 | old_done = todo_done; | |
143 | for(; todo[todo_done].done && todo_done != todo_start; | |
144 | todo_done = (todo_done+1) % ARRAY_SIZE(todo)) { | |
145 | w = &todo[todo_done]; | |
431d6e7b | 146 | if (w->out.len) { |
08303c36 RS |
147 | const char *p = w->out.buf; |
148 | size_t len = w->out.len; | |
149 | ||
150 | /* Skip the leading hunk mark of the first file. */ | |
151 | if (skip_first_line) { | |
152 | while (len) { | |
153 | len--; | |
154 | if (*p++ == '\n') | |
155 | break; | |
156 | } | |
157 | skip_first_line = 0; | |
158 | } | |
159 | ||
160 | write_or_die(1, p, len); | |
431d6e7b | 161 | } |
8f24a632 | 162 | grep_source_clear(&w->source); |
5b594f45 FK |
163 | } |
164 | ||
165 | if (old_done != todo_done) | |
166 | pthread_cond_signal(&cond_write); | |
167 | ||
168 | if (all_work_added && todo_done == todo_end) | |
169 | pthread_cond_signal(&cond_result); | |
170 | ||
171 | grep_unlock(); | |
172 | } | |
173 | ||
174 | static void *run(void *arg) | |
175 | { | |
176 | int hit = 0; | |
177 | struct grep_opt *opt = arg; | |
178 | ||
179 | while (1) { | |
180 | struct work_item *w = get_work(); | |
181 | if (!w) | |
182 | break; | |
183 | ||
184 | opt->output_priv = w; | |
0281e487 BW |
185 | if (w->source.type == GREP_SOURCE_SUBMODULE) |
186 | hit |= grep_submodule_launch(opt, &w->source); | |
187 | else | |
188 | hit |= grep_source(opt, &w->source); | |
8f24a632 | 189 | grep_source_clear_data(&w->source); |
5b594f45 FK |
190 | work_done(w); |
191 | } | |
bfac23d9 DM |
192 | free_grep_patterns(arg); |
193 | free(arg); | |
5b594f45 FK |
194 | |
195 | return (void*) (intptr_t) hit; | |
196 | } | |
197 | ||
198 | static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size) | |
199 | { | |
200 | struct work_item *w = opt->output_priv; | |
201 | strbuf_add(&w->out, buf, size); | |
202 | } | |
203 | ||
204 | static void start_threads(struct grep_opt *opt) | |
205 | { | |
206 | int i; | |
207 | ||
208 | pthread_mutex_init(&grep_mutex, NULL); | |
b3aeb285 | 209 | pthread_mutex_init(&grep_read_mutex, NULL); |
0579f91d | 210 | pthread_mutex_init(&grep_attr_mutex, NULL); |
5b594f45 FK |
211 | pthread_cond_init(&cond_add, NULL); |
212 | pthread_cond_init(&cond_write, NULL); | |
213 | pthread_cond_init(&cond_result, NULL); | |
78db6ea9 | 214 | grep_use_locks = 1; |
5b594f45 FK |
215 | |
216 | for (i = 0; i < ARRAY_SIZE(todo); i++) { | |
217 | strbuf_init(&todo[i].out, 0); | |
218 | } | |
219 | ||
89f09dd3 VL |
220 | threads = xcalloc(num_threads, sizeof(*threads)); |
221 | for (i = 0; i < num_threads; i++) { | |
5b594f45 FK |
222 | int err; |
223 | struct grep_opt *o = grep_opt_dup(opt); | |
224 | o->output = strbuf_out; | |
208f5aa4 | 225 | o->debug = 0; |
5b594f45 FK |
226 | compile_grep_patterns(o); |
227 | err = pthread_create(&threads[i], NULL, run, o); | |
228 | ||
229 | if (err) | |
2fc5f9f1 | 230 | die(_("grep: failed to create thread: %s"), |
5b594f45 FK |
231 | strerror(err)); |
232 | } | |
233 | } | |
234 | ||
235 | static int wait_all(void) | |
236 | { | |
237 | int hit = 0; | |
238 | int i; | |
239 | ||
240 | grep_lock(); | |
241 | all_work_added = 1; | |
242 | ||
243 | /* Wait until all work is done. */ | |
244 | while (todo_done != todo_end) | |
245 | pthread_cond_wait(&cond_result, &grep_mutex); | |
246 | ||
247 | /* Wake up all the consumer threads so they can see that there | |
248 | * is no more work to do. | |
249 | */ | |
250 | pthread_cond_broadcast(&cond_add); | |
251 | grep_unlock(); | |
252 | ||
89f09dd3 | 253 | for (i = 0; i < num_threads; i++) { |
5b594f45 FK |
254 | void *h; |
255 | pthread_join(threads[i], &h); | |
256 | hit |= (int) (intptr_t) h; | |
257 | } | |
258 | ||
89f09dd3 VL |
259 | free(threads); |
260 | ||
5b594f45 | 261 | pthread_mutex_destroy(&grep_mutex); |
b3aeb285 | 262 | pthread_mutex_destroy(&grep_read_mutex); |
0579f91d | 263 | pthread_mutex_destroy(&grep_attr_mutex); |
5b594f45 FK |
264 | pthread_cond_destroy(&cond_add); |
265 | pthread_cond_destroy(&cond_write); | |
266 | pthread_cond_destroy(&cond_result); | |
78db6ea9 | 267 | grep_use_locks = 0; |
5b594f45 FK |
268 | |
269 | return hit; | |
270 | } | |
271 | #else /* !NO_PTHREADS */ | |
5b594f45 FK |
272 | |
273 | static int wait_all(void) | |
274 | { | |
275 | return 0; | |
276 | } | |
277 | #endif | |
278 | ||
15fabd1b JH |
279 | static int grep_cmd_config(const char *var, const char *value, void *cb) |
280 | { | |
281 | int st = grep_config(var, value, cb); | |
282 | if (git_color_default_config(var, value, cb) < 0) | |
283 | st = -1; | |
89f09dd3 VL |
284 | |
285 | if (!strcmp(var, "grep.threads")) { | |
286 | num_threads = git_config_int(var, value); | |
287 | if (num_threads < 0) | |
288 | die(_("invalid number of threads specified (%d) for %s"), | |
289 | num_threads, var); | |
290 | } | |
291 | ||
15fabd1b JH |
292 | return st; |
293 | } | |
294 | ||
5f02d315 JH |
295 | static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) |
296 | { | |
297 | void *data; | |
298 | ||
b3aeb285 | 299 | grep_read_lock(); |
76416139 | 300 | data = read_sha1_file(sha1, type, size); |
b3aeb285 | 301 | grep_read_unlock(); |
5b594f45 FK |
302 | return data; |
303 | } | |
304 | ||
305 | static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, | |
55c61688 NTND |
306 | const char *filename, int tree_name_len, |
307 | const char *path) | |
5b594f45 FK |
308 | { |
309 | struct strbuf pathbuf = STRBUF_INIT; | |
5b594f45 | 310 | |
0d042fec | 311 | if (opt->relative && opt->prefix_length) { |
39598f99 | 312 | quote_path_relative(filename + tree_name_len, opt->prefix, &pathbuf); |
5b594f45 | 313 | strbuf_insert(&pathbuf, 0, filename, tree_name_len); |
0281e487 BW |
314 | } else if (super_prefix) { |
315 | strbuf_add(&pathbuf, filename, tree_name_len); | |
316 | strbuf_addstr(&pathbuf, super_prefix); | |
317 | strbuf_addstr(&pathbuf, filename + tree_name_len); | |
5b594f45 FK |
318 | } else { |
319 | strbuf_addstr(&pathbuf, filename); | |
320 | } | |
321 | ||
5b594f45 | 322 | #ifndef NO_PTHREADS |
89f09dd3 | 323 | if (num_threads) { |
55c61688 | 324 | add_work(opt, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); |
8f24a632 | 325 | strbuf_release(&pathbuf); |
5b594f45 FK |
326 | return 0; |
327 | } else | |
328 | #endif | |
329 | { | |
8f24a632 | 330 | struct grep_source gs; |
5b594f45 | 331 | int hit; |
5010cb5f | 332 | |
55c61688 | 333 | grep_source_init(&gs, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); |
8f24a632 JK |
334 | strbuf_release(&pathbuf); |
335 | hit = grep_source(opt, &gs); | |
dc49cd76 | 336 | |
8f24a632 JK |
337 | grep_source_clear(&gs); |
338 | return hit; | |
5010cb5f | 339 | } |
5b594f45 FK |
340 | } |
341 | ||
342 | static int grep_file(struct grep_opt *opt, const char *filename) | |
343 | { | |
344 | struct strbuf buf = STRBUF_INIT; | |
5b594f45 | 345 | |
0281e487 | 346 | if (opt->relative && opt->prefix_length) { |
39598f99 | 347 | quote_path_relative(filename, opt->prefix, &buf); |
0281e487 BW |
348 | } else { |
349 | if (super_prefix) | |
350 | strbuf_addstr(&buf, super_prefix); | |
5b594f45 | 351 | strbuf_addstr(&buf, filename); |
0281e487 | 352 | } |
5b594f45 FK |
353 | |
354 | #ifndef NO_PTHREADS | |
89f09dd3 | 355 | if (num_threads) { |
55c61688 | 356 | add_work(opt, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 | 357 | strbuf_release(&buf); |
5b594f45 FK |
358 | return 0; |
359 | } else | |
360 | #endif | |
361 | { | |
8f24a632 | 362 | struct grep_source gs; |
5b594f45 | 363 | int hit; |
5b594f45 | 364 | |
55c61688 | 365 | grep_source_init(&gs, GREP_SOURCE_FILE, buf.buf, filename, filename); |
8f24a632 JK |
366 | strbuf_release(&buf); |
367 | hit = grep_source(opt, &gs); | |
368 | ||
369 | grep_source_clear(&gs); | |
5b594f45 FK |
370 | return hit; |
371 | } | |
5010cb5f JH |
372 | } |
373 | ||
678e484b JS |
374 | static void append_path(struct grep_opt *opt, const void *data, size_t len) |
375 | { | |
376 | struct string_list *path_list = opt->output_priv; | |
377 | ||
378 | if (len == 1 && *(const char *)data == '\0') | |
379 | return; | |
0c72cead | 380 | string_list_append(path_list, xstrndup(data, len)); |
678e484b JS |
381 | } |
382 | ||
383 | static void run_pager(struct grep_opt *opt, const char *prefix) | |
384 | { | |
385 | struct string_list *path_list = opt->output_priv; | |
850d2fec | 386 | struct child_process child = CHILD_PROCESS_INIT; |
678e484b JS |
387 | int i, status; |
388 | ||
389 | for (i = 0; i < path_list->nr; i++) | |
850d2fec JK |
390 | argv_array_push(&child.args, path_list->items[i].string); |
391 | child.dir = prefix; | |
392 | child.use_shell = 1; | |
678e484b | 393 | |
850d2fec | 394 | status = run_command(&child); |
678e484b JS |
395 | if (status) |
396 | exit(status); | |
678e484b JS |
397 | } |
398 | ||
0281e487 BW |
399 | static void compile_submodule_options(const struct grep_opt *opt, |
400 | const struct pathspec *pathspec, | |
401 | int cached, int untracked, | |
402 | int opt_exclude, int use_index, | |
403 | int pattern_type_arg) | |
404 | { | |
405 | struct grep_pat *pattern; | |
406 | int i; | |
407 | ||
408 | if (recurse_submodules) | |
409 | argv_array_push(&submodule_options, "--recurse-submodules"); | |
410 | ||
411 | if (cached) | |
412 | argv_array_push(&submodule_options, "--cached"); | |
413 | if (!use_index) | |
414 | argv_array_push(&submodule_options, "--no-index"); | |
415 | if (untracked) | |
416 | argv_array_push(&submodule_options, "--untracked"); | |
417 | if (opt_exclude > 0) | |
418 | argv_array_push(&submodule_options, "--exclude-standard"); | |
419 | ||
420 | if (opt->invert) | |
421 | argv_array_push(&submodule_options, "-v"); | |
422 | if (opt->ignore_case) | |
423 | argv_array_push(&submodule_options, "-i"); | |
424 | if (opt->word_regexp) | |
425 | argv_array_push(&submodule_options, "-w"); | |
426 | switch (opt->binary) { | |
427 | case GREP_BINARY_NOMATCH: | |
428 | argv_array_push(&submodule_options, "-I"); | |
429 | break; | |
430 | case GREP_BINARY_TEXT: | |
431 | argv_array_push(&submodule_options, "-a"); | |
432 | break; | |
433 | default: | |
434 | break; | |
435 | } | |
436 | if (opt->allow_textconv) | |
437 | argv_array_push(&submodule_options, "--textconv"); | |
438 | if (opt->max_depth != -1) | |
439 | argv_array_pushf(&submodule_options, "--max-depth=%d", | |
440 | opt->max_depth); | |
441 | if (opt->linenum) | |
442 | argv_array_push(&submodule_options, "-n"); | |
443 | if (!opt->pathname) | |
444 | argv_array_push(&submodule_options, "-h"); | |
445 | if (!opt->relative) | |
446 | argv_array_push(&submodule_options, "--full-name"); | |
447 | if (opt->name_only) | |
448 | argv_array_push(&submodule_options, "-l"); | |
449 | if (opt->unmatch_name_only) | |
450 | argv_array_push(&submodule_options, "-L"); | |
451 | if (opt->null_following_name) | |
452 | argv_array_push(&submodule_options, "-z"); | |
453 | if (opt->count) | |
454 | argv_array_push(&submodule_options, "-c"); | |
455 | if (opt->file_break) | |
456 | argv_array_push(&submodule_options, "--break"); | |
457 | if (opt->heading) | |
458 | argv_array_push(&submodule_options, "--heading"); | |
459 | if (opt->pre_context) | |
460 | argv_array_pushf(&submodule_options, "--before-context=%d", | |
461 | opt->pre_context); | |
462 | if (opt->post_context) | |
463 | argv_array_pushf(&submodule_options, "--after-context=%d", | |
464 | opt->post_context); | |
465 | if (opt->funcname) | |
466 | argv_array_push(&submodule_options, "-p"); | |
467 | if (opt->funcbody) | |
468 | argv_array_push(&submodule_options, "-W"); | |
469 | if (opt->all_match) | |
470 | argv_array_push(&submodule_options, "--all-match"); | |
471 | if (opt->debug) | |
472 | argv_array_push(&submodule_options, "--debug"); | |
473 | if (opt->status_only) | |
474 | argv_array_push(&submodule_options, "-q"); | |
475 | ||
476 | switch (pattern_type_arg) { | |
477 | case GREP_PATTERN_TYPE_BRE: | |
478 | argv_array_push(&submodule_options, "-G"); | |
479 | break; | |
480 | case GREP_PATTERN_TYPE_ERE: | |
481 | argv_array_push(&submodule_options, "-E"); | |
482 | break; | |
483 | case GREP_PATTERN_TYPE_FIXED: | |
484 | argv_array_push(&submodule_options, "-F"); | |
485 | break; | |
486 | case GREP_PATTERN_TYPE_PCRE: | |
487 | argv_array_push(&submodule_options, "-P"); | |
488 | break; | |
489 | case GREP_PATTERN_TYPE_UNSPECIFIED: | |
490 | break; | |
491 | } | |
492 | ||
493 | for (pattern = opt->pattern_list; pattern != NULL; | |
494 | pattern = pattern->next) { | |
495 | switch (pattern->token) { | |
496 | case GREP_PATTERN: | |
497 | argv_array_pushf(&submodule_options, "-e%s", | |
498 | pattern->pattern); | |
499 | break; | |
500 | case GREP_AND: | |
501 | case GREP_OPEN_PAREN: | |
502 | case GREP_CLOSE_PAREN: | |
503 | case GREP_NOT: | |
504 | case GREP_OR: | |
505 | argv_array_push(&submodule_options, pattern->pattern); | |
506 | break; | |
507 | /* BODY and HEAD are not used by git-grep */ | |
508 | case GREP_PATTERN_BODY: | |
509 | case GREP_PATTERN_HEAD: | |
510 | break; | |
511 | } | |
512 | } | |
513 | ||
514 | /* | |
515 | * Limit number of threads for child process to use. | |
516 | * This is to prevent potential fork-bomb behavior of git-grep as each | |
517 | * submodule process has its own thread pool. | |
518 | */ | |
519 | argv_array_pushf(&submodule_options, "--threads=%d", | |
520 | (num_threads + 1) / 2); | |
521 | ||
522 | /* Add Pathspecs */ | |
523 | argv_array_push(&submodule_options, "--"); | |
524 | for (i = 0; i < pathspec->nr; i++) | |
525 | argv_array_push(&submodule_options, | |
526 | pathspec->items[i].original); | |
527 | } | |
528 | ||
529 | /* | |
530 | * Launch child process to grep contents of a submodule | |
531 | */ | |
532 | static int grep_submodule_launch(struct grep_opt *opt, | |
533 | const struct grep_source *gs) | |
534 | { | |
535 | struct child_process cp = CHILD_PROCESS_INIT; | |
536 | int status, i; | |
537 | struct work_item *w = opt->output_priv; | |
538 | ||
539 | prepare_submodule_repo_env(&cp.env_array); | |
540 | ||
541 | /* Add super prefix */ | |
542 | argv_array_pushf(&cp.args, "--super-prefix=%s%s/", | |
543 | super_prefix ? super_prefix : "", | |
544 | gs->name); | |
545 | argv_array_push(&cp.args, "grep"); | |
546 | ||
547 | /* Add options */ | |
548 | for (i = 0; i < submodule_options.argc; i++) | |
549 | argv_array_push(&cp.args, submodule_options.argv[i]); | |
550 | ||
551 | cp.git_cmd = 1; | |
552 | cp.dir = gs->path; | |
553 | ||
554 | /* | |
555 | * Capture output to output buffer and check the return code from the | |
556 | * child process. A '0' indicates a hit, a '1' indicates no hit and | |
557 | * anything else is an error. | |
558 | */ | |
559 | status = capture_command(&cp, &w->out, 0); | |
560 | if (status && (status != 1)) { | |
561 | /* flush the buffer */ | |
562 | write_or_die(1, w->out.buf, w->out.len); | |
563 | die("process for submodule '%s' failed with exit code: %d", | |
564 | gs->name, status); | |
565 | } | |
566 | ||
567 | /* invert the return code to make a hit equal to 1 */ | |
568 | return !status; | |
569 | } | |
570 | ||
571 | /* | |
572 | * Prep grep structures for a submodule grep | |
573 | * sha1: the sha1 of the submodule or NULL if using the working tree | |
574 | * filename: name of the submodule including tree name of parent | |
575 | * path: location of the submodule | |
576 | */ | |
577 | static int grep_submodule(struct grep_opt *opt, const unsigned char *sha1, | |
578 | const char *filename, const char *path) | |
579 | { | |
580 | if (!is_submodule_initialized(path)) | |
581 | return 0; | |
582 | if (!is_submodule_populated(path)) | |
583 | return 0; | |
584 | ||
585 | #ifndef NO_PTHREADS | |
586 | if (num_threads) { | |
587 | add_work(opt, GREP_SOURCE_SUBMODULE, filename, path, sha1); | |
588 | return 0; | |
589 | } else | |
590 | #endif | |
591 | { | |
592 | struct work_item w; | |
593 | int hit; | |
594 | ||
595 | grep_source_init(&w.source, GREP_SOURCE_SUBMODULE, | |
596 | filename, path, sha1); | |
597 | strbuf_init(&w.out, 0); | |
598 | opt->output_priv = &w; | |
599 | hit = grep_submodule_launch(opt, &w.source); | |
600 | ||
601 | write_or_die(1, w.out.buf, w.out.len); | |
602 | ||
603 | grep_source_clear(&w.source); | |
604 | strbuf_release(&w.out); | |
605 | return hit; | |
606 | } | |
607 | } | |
608 | ||
609 | static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, | |
610 | int cached) | |
5010cb5f JH |
611 | { |
612 | int hit = 0; | |
613 | int nr; | |
0281e487 BW |
614 | struct strbuf name = STRBUF_INIT; |
615 | int name_base_len = 0; | |
616 | if (super_prefix) { | |
617 | name_base_len = strlen(super_prefix); | |
618 | strbuf_addstr(&name, super_prefix); | |
619 | } | |
620 | ||
5010cb5f JH |
621 | read_cache(); |
622 | ||
623 | for (nr = 0; nr < active_nr; nr++) { | |
9c5e6c80 | 624 | const struct cache_entry *ce = active_cache[nr]; |
0281e487 BW |
625 | strbuf_setlen(&name, name_base_len); |
626 | strbuf_addstr(&name, ce->name); | |
627 | ||
628 | if (S_ISREG(ce->ce_mode) && | |
629 | match_pathspec(pathspec, name.buf, name.len, 0, NULL, | |
630 | S_ISDIR(ce->ce_mode) || | |
631 | S_ISGITLINK(ce->ce_mode))) { | |
632 | /* | |
633 | * If CE_VALID is on, we assume worktree file and its | |
634 | * cache entry are identical, even if worktree file has | |
635 | * been modified, so use cache version instead | |
636 | */ | |
637 | if (cached || (ce->ce_flags & CE_VALID) || | |
638 | ce_skip_worktree(ce)) { | |
639 | if (ce_stage(ce) || ce_intent_to_add(ce)) | |
640 | continue; | |
641 | hit |= grep_sha1(opt, ce->oid.hash, ce->name, | |
642 | 0, ce->name); | |
643 | } else { | |
644 | hit |= grep_file(opt, ce->name); | |
645 | } | |
646 | } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && | |
647 | submodule_path_match(pathspec, name.buf, NULL)) { | |
648 | hit |= grep_submodule(opt, NULL, ce->name, ce->name); | |
649 | } else { | |
5010cb5f | 650 | continue; |
36f2587f | 651 | } |
0281e487 | 652 | |
36f2587f JH |
653 | if (ce_stage(ce)) { |
654 | do { | |
655 | nr++; | |
656 | } while (nr < active_nr && | |
657 | !strcmp(ce->name, active_cache[nr]->name)); | |
658 | nr--; /* compensate for loop control */ | |
659 | } | |
c8610a2e JH |
660 | if (hit && opt->status_only) |
661 | break; | |
5010cb5f | 662 | } |
0281e487 BW |
663 | |
664 | strbuf_release(&name); | |
5010cb5f JH |
665 | return hit; |
666 | } | |
667 | ||
f34bbc15 | 668 | static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, |
55c61688 NTND |
669 | struct tree_desc *tree, struct strbuf *base, int tn_len, |
670 | int check_attr) | |
5010cb5f | 671 | { |
d688cf07 NTND |
672 | int hit = 0; |
673 | enum interesting match = entry_not_interesting; | |
4c068a98 | 674 | struct name_entry entry; |
e5e062b6 | 675 | int old_baselen = base->len; |
5010cb5f | 676 | |
4c068a98 | 677 | while (tree_entry(tree, &entry)) { |
0de16337 | 678 | int te_len = tree_entry_len(&entry); |
e5e062b6 | 679 | |
d688cf07 | 680 | if (match != all_entries_interesting) { |
97d0b74a | 681 | match = tree_entry_interesting(&entry, base, tn_len, pathspec); |
d688cf07 | 682 | if (match == all_entries_not_interesting) |
97d0b74a | 683 | break; |
d688cf07 | 684 | if (match == entry_not_interesting) |
1376e507 NTND |
685 | continue; |
686 | } | |
5010cb5f | 687 | |
1376e507 | 688 | strbuf_add(base, entry.path, te_len); |
e0eb889f | 689 | |
1376e507 | 690 | if (S_ISREG(entry.mode)) { |
7d924c91 | 691 | hit |= grep_sha1(opt, entry.oid->hash, base->buf, tn_len, |
55c61688 | 692 | check_attr ? base->buf + tn_len : NULL); |
e5e062b6 | 693 | } |
4c068a98 | 694 | else if (S_ISDIR(entry.mode)) { |
21666f1a | 695 | enum object_type type; |
5010cb5f JH |
696 | struct tree_desc sub; |
697 | void *data; | |
6fda5e51 LT |
698 | unsigned long size; |
699 | ||
7d924c91 | 700 | data = lock_and_read_sha1_file(entry.oid->hash, &type, &size); |
5010cb5f | 701 | if (!data) |
2fc5f9f1 | 702 | die(_("unable to read tree (%s)"), |
7d924c91 | 703 | oid_to_hex(entry.oid)); |
1376e507 NTND |
704 | |
705 | strbuf_addch(base, '/'); | |
6fda5e51 | 706 | init_tree_desc(&sub, data, size); |
55c61688 NTND |
707 | hit |= grep_tree(opt, pathspec, &sub, base, tn_len, |
708 | check_attr); | |
5010cb5f JH |
709 | free(data); |
710 | } | |
e5e062b6 NTND |
711 | strbuf_setlen(base, old_baselen); |
712 | ||
c8610a2e JH |
713 | if (hit && opt->status_only) |
714 | break; | |
5010cb5f JH |
715 | } |
716 | return hit; | |
717 | } | |
718 | ||
f34bbc15 | 719 | static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, |
9e0c3c4f | 720 | struct object *obj, const char *name, const char *path) |
5010cb5f | 721 | { |
1974632c | 722 | if (obj->type == OBJ_BLOB) |
ed1c9977 | 723 | return grep_sha1(opt, obj->oid.hash, name, 0, path); |
1974632c | 724 | if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { |
5010cb5f JH |
725 | struct tree_desc tree; |
726 | void *data; | |
6fda5e51 | 727 | unsigned long size; |
e5e062b6 NTND |
728 | struct strbuf base; |
729 | int hit, len; | |
730 | ||
b3aeb285 | 731 | grep_read_lock(); |
f2fd0760 | 732 | data = read_object_with_reference(obj->oid.hash, tree_type, |
6fda5e51 | 733 | &size, NULL); |
b3aeb285 | 734 | grep_read_unlock(); |
8cb5775b | 735 | |
5010cb5f | 736 | if (!data) |
f2fd0760 | 737 | die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); |
e5e062b6 NTND |
738 | |
739 | len = name ? strlen(name) : 0; | |
740 | strbuf_init(&base, PATH_MAX + len + 1); | |
741 | if (len) { | |
742 | strbuf_add(&base, name, len); | |
743 | strbuf_addch(&base, ':'); | |
744 | } | |
6fda5e51 | 745 | init_tree_desc(&tree, data, size); |
55c61688 NTND |
746 | hit = grep_tree(opt, pathspec, &tree, &base, base.len, |
747 | obj->type == OBJ_COMMIT); | |
e5e062b6 | 748 | strbuf_release(&base); |
5010cb5f JH |
749 | free(data); |
750 | return hit; | |
751 | } | |
2fc5f9f1 | 752 | die(_("unable to grep from object of type %s"), typename(obj->type)); |
5010cb5f JH |
753 | } |
754 | ||
f34bbc15 | 755 | static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, |
30d00c39 JN |
756 | const struct object_array *list) |
757 | { | |
758 | unsigned int i; | |
759 | int hit = 0; | |
760 | const unsigned int nr = list->nr; | |
761 | ||
762 | for (i = 0; i < nr; i++) { | |
763 | struct object *real_obj; | |
764 | real_obj = deref_tag(list->objects[i].item, NULL, 0); | |
9e0c3c4f | 765 | if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { |
30d00c39 JN |
766 | hit = 1; |
767 | if (opt->status_only) | |
768 | break; | |
769 | } | |
770 | } | |
771 | return hit; | |
772 | } | |
773 | ||
dbfae86a | 774 | static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, |
85975c0c | 775 | int exc_std, int use_index) |
59332d13 JH |
776 | { |
777 | struct dir_struct dir; | |
778 | int i, hit = 0; | |
779 | ||
780 | memset(&dir, 0, sizeof(dir)); | |
85975c0c JK |
781 | if (!use_index) |
782 | dir.flags |= DIR_NO_GITLINKS; | |
0a93fb8a JH |
783 | if (exc_std) |
784 | setup_standard_excludes(&dir); | |
59332d13 | 785 | |
7327d3d1 | 786 | fill_directory(&dir, pathspec); |
59332d13 | 787 | for (i = 0; i < dir.nr; i++) { |
ebb32893 | 788 | if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) |
9d8b831b | 789 | continue; |
59332d13 JH |
790 | hit |= grep_file(opt, dir.entries[i]->name); |
791 | if (hit && opt->status_only) | |
792 | break; | |
793 | } | |
59332d13 JH |
794 | return hit; |
795 | } | |
796 | ||
ff3c7f9a RS |
797 | static int context_callback(const struct option *opt, const char *arg, |
798 | int unset) | |
3e230fa1 RS |
799 | { |
800 | struct grep_opt *grep_opt = opt->value; | |
801 | int value; | |
802 | const char *endp; | |
803 | ||
804 | if (unset) { | |
805 | grep_opt->pre_context = grep_opt->post_context = 0; | |
806 | return 0; | |
807 | } | |
808 | value = strtol(arg, (char **)&endp, 10); | |
809 | if (*endp) { | |
2fc5f9f1 | 810 | return error(_("switch `%c' expects a numerical value"), |
3e230fa1 RS |
811 | opt->short_name); |
812 | } | |
813 | grep_opt->pre_context = grep_opt->post_context = value; | |
814 | return 0; | |
815 | } | |
816 | ||
ff3c7f9a | 817 | static int file_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
818 | { |
819 | struct grep_opt *grep_opt = opt->value; | |
c41dd2fd | 820 | int from_stdin = !strcmp(arg, "-"); |
3e230fa1 RS |
821 | FILE *patterns; |
822 | int lno = 0; | |
cfe370c6 | 823 | struct strbuf sb = STRBUF_INIT; |
3e230fa1 | 824 | |
c41dd2fd | 825 | patterns = from_stdin ? stdin : fopen(arg, "r"); |
3e230fa1 | 826 | if (!patterns) |
2fc5f9f1 | 827 | die_errno(_("cannot open '%s'"), arg); |
a5518431 | 828 | while (strbuf_getline(&sb, patterns) == 0) { |
3e230fa1 RS |
829 | /* ignore empty line like grep does */ |
830 | if (sb.len == 0) | |
831 | continue; | |
ed40a095 | 832 | |
ec830611 RS |
833 | append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno, |
834 | GREP_PATTERN); | |
3e230fa1 | 835 | } |
c41dd2fd RS |
836 | if (!from_stdin) |
837 | fclose(patterns); | |
3e230fa1 RS |
838 | strbuf_release(&sb); |
839 | return 0; | |
840 | } | |
841 | ||
ff3c7f9a | 842 | static int not_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
843 | { |
844 | struct grep_opt *grep_opt = opt->value; | |
845 | append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT); | |
846 | return 0; | |
847 | } | |
848 | ||
ff3c7f9a | 849 | static int and_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
850 | { |
851 | struct grep_opt *grep_opt = opt->value; | |
852 | append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND); | |
853 | return 0; | |
854 | } | |
855 | ||
ff3c7f9a | 856 | static int open_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
857 | { |
858 | struct grep_opt *grep_opt = opt->value; | |
859 | append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN); | |
860 | return 0; | |
861 | } | |
862 | ||
ff3c7f9a | 863 | static int close_callback(const struct option *opt, const char *arg, int unset) |
3e230fa1 RS |
864 | { |
865 | struct grep_opt *grep_opt = opt->value; | |
866 | append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN); | |
867 | return 0; | |
868 | } | |
869 | ||
ff3c7f9a RS |
870 | static int pattern_callback(const struct option *opt, const char *arg, |
871 | int unset) | |
3e230fa1 RS |
872 | { |
873 | struct grep_opt *grep_opt = opt->value; | |
874 | append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN); | |
875 | return 0; | |
876 | } | |
5010cb5f | 877 | |
a633fca0 | 878 | int cmd_grep(int argc, const char **argv, const char *prefix) |
5010cb5f | 879 | { |
5010cb5f | 880 | int hit = 0; |
0a93fb8a | 881 | int cached = 0, untracked = 0, opt_exclude = -1; |
5acd64ed | 882 | int seen_dashdash = 0; |
bbc09c22 | 883 | int external_grep_allowed__ignored; |
0af88c15 | 884 | const char *show_in_pager = NULL, *default_pager = "dummy"; |
5010cb5f | 885 | struct grep_opt opt; |
3cd47459 | 886 | struct object_array list = OBJECT_ARRAY_INIT; |
f34bbc15 | 887 | struct pathspec pathspec; |
183113a5 | 888 | struct string_list path_list = STRING_LIST_INIT_NODUP; |
5acd64ed | 889 | int i; |
3e230fa1 | 890 | int dummy; |
ff38d1a9 | 891 | int use_index = 1; |
84befcd0 | 892 | int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; |
cca2c172 | 893 | |
3e230fa1 | 894 | struct option options[] = { |
d5d09d47 | 895 | OPT_BOOL(0, "cached", &cached, |
4b407bc5 | 896 | N_("search in index instead of in the work tree")), |
cbb08c2e | 897 | OPT_NEGBIT(0, "no-index", &use_index, |
f63cf8c9 | 898 | N_("find in contents not managed by git"), 1), |
d5d09d47 | 899 | OPT_BOOL(0, "untracked", &untracked, |
4b407bc5 | 900 | N_("search in both tracked and untracked files")), |
0a93fb8a | 901 | OPT_SET_INT(0, "exclude-standard", &opt_exclude, |
77fdb8a8 | 902 | N_("ignore files specified via '.gitignore'"), 1), |
0281e487 BW |
903 | OPT_BOOL(0, "recurse-submodules", &recurse_submodules, |
904 | N_("recursivley search in each submodule")), | |
3e230fa1 | 905 | OPT_GROUP(""), |
d5d09d47 | 906 | OPT_BOOL('v', "invert-match", &opt.invert, |
4b407bc5 | 907 | N_("show non-matching lines")), |
d5d09d47 | 908 | OPT_BOOL('i', "ignore-case", &opt.ignore_case, |
4b407bc5 | 909 | N_("case insensitive matching")), |
d5d09d47 | 910 | OPT_BOOL('w', "word-regexp", &opt.word_regexp, |
4b407bc5 | 911 | N_("match patterns only at word boundaries")), |
3e230fa1 | 912 | OPT_SET_INT('a', "text", &opt.binary, |
4b407bc5 | 913 | N_("process binary files as text"), GREP_BINARY_TEXT), |
3e230fa1 | 914 | OPT_SET_INT('I', NULL, &opt.binary, |
4b407bc5 | 915 | N_("don't match patterns in binary files"), |
3e230fa1 | 916 | GREP_BINARY_NOMATCH), |
335ec3bf JK |
917 | OPT_BOOL(0, "textconv", &opt.allow_textconv, |
918 | N_("process binary files with textconv filters")), | |
4b407bc5 NTND |
919 | { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"), |
920 | N_("descend at most <depth> levels"), PARSE_OPT_NONEG, | |
a91f453f | 921 | NULL, 1 }, |
3e230fa1 | 922 | OPT_GROUP(""), |
84befcd0 | 923 | OPT_SET_INT('E', "extended-regexp", &pattern_type_arg, |
4b407bc5 | 924 | N_("use extended POSIX regular expressions"), |
84befcd0 S |
925 | GREP_PATTERN_TYPE_ERE), |
926 | OPT_SET_INT('G', "basic-regexp", &pattern_type_arg, | |
4b407bc5 | 927 | N_("use basic POSIX regular expressions (default)"), |
84befcd0 S |
928 | GREP_PATTERN_TYPE_BRE), |
929 | OPT_SET_INT('F', "fixed-strings", &pattern_type_arg, | |
4b407bc5 | 930 | N_("interpret patterns as fixed strings"), |
84befcd0 S |
931 | GREP_PATTERN_TYPE_FIXED), |
932 | OPT_SET_INT('P', "perl-regexp", &pattern_type_arg, | |
4b407bc5 | 933 | N_("use Perl-compatible regular expressions"), |
84befcd0 | 934 | GREP_PATTERN_TYPE_PCRE), |
3e230fa1 | 935 | OPT_GROUP(""), |
d5d09d47 | 936 | OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), |
4b407bc5 NTND |
937 | OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), |
938 | OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), | |
3e230fa1 | 939 | OPT_NEGBIT(0, "full-name", &opt.relative, |
4b407bc5 | 940 | N_("show filenames relative to top directory"), 1), |
d5d09d47 | 941 | OPT_BOOL('l', "files-with-matches", &opt.name_only, |
4b407bc5 | 942 | N_("show only filenames instead of matching lines")), |
d5d09d47 | 943 | OPT_BOOL(0, "name-only", &opt.name_only, |
4b407bc5 | 944 | N_("synonym for --files-with-matches")), |
d5d09d47 | 945 | OPT_BOOL('L', "files-without-match", |
3e230fa1 | 946 | &opt.unmatch_name_only, |
4b407bc5 | 947 | N_("show only the names of files without match")), |
d5d09d47 | 948 | OPT_BOOL('z', "null", &opt.null_following_name, |
4b407bc5 | 949 | N_("print NUL after filenames")), |
d5d09d47 | 950 | OPT_BOOL('c', "count", &opt.count, |
4b407bc5 NTND |
951 | N_("show the number of matches instead of matching lines")), |
952 | OPT__COLOR(&opt.color, N_("highlight matches")), | |
d5d09d47 | 953 | OPT_BOOL(0, "break", &opt.file_break, |
4b407bc5 | 954 | N_("print empty line between matches from different files")), |
d5d09d47 | 955 | OPT_BOOL(0, "heading", &opt.heading, |
4b407bc5 | 956 | N_("show filename only once above matches from same file")), |
3e230fa1 | 957 | OPT_GROUP(""), |
4b407bc5 NTND |
958 | OPT_CALLBACK('C', "context", &opt, N_("n"), |
959 | N_("show <n> context lines before and after matches"), | |
3e230fa1 | 960 | context_callback), |
317f63c2 | 961 | OPT_INTEGER('B', "before-context", &opt.pre_context, |
4b407bc5 | 962 | N_("show <n> context lines before matches")), |
317f63c2 | 963 | OPT_INTEGER('A', "after-context", &opt.post_context, |
4b407bc5 | 964 | N_("show <n> context lines after matches")), |
89f09dd3 VL |
965 | OPT_INTEGER(0, "threads", &num_threads, |
966 | N_("use <n> worker threads")), | |
4b407bc5 | 967 | OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"), |
3e230fa1 | 968 | context_callback), |
d5d09d47 | 969 | OPT_BOOL('p', "show-function", &opt.funcname, |
4b407bc5 | 970 | N_("show a line with the function name before matches")), |
d5d09d47 | 971 | OPT_BOOL('W', "function-context", &opt.funcbody, |
4b407bc5 | 972 | N_("show the surrounding function")), |
3e230fa1 | 973 | OPT_GROUP(""), |
4b407bc5 NTND |
974 | OPT_CALLBACK('f', NULL, &opt, N_("file"), |
975 | N_("read patterns from file"), file_callback), | |
976 | { OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"), | |
977 | N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback }, | |
3e230fa1 | 978 | { OPTION_CALLBACK, 0, "and", &opt, NULL, |
4b407bc5 | 979 | N_("combine patterns specified with -e"), |
3e230fa1 | 980 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, |
d5d09d47 | 981 | OPT_BOOL(0, "or", &dummy, ""), |
3e230fa1 RS |
982 | { OPTION_CALLBACK, 0, "not", &opt, NULL, "", |
983 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, | |
984 | { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", | |
985 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
986 | open_callback }, | |
987 | { OPTION_CALLBACK, ')', NULL, &opt, NULL, "", | |
988 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, | |
989 | close_callback }, | |
d52ee6e6 | 990 | OPT__QUIET(&opt.status_only, |
4b407bc5 | 991 | N_("indicate hit with exit status without output")), |
d5d09d47 | 992 | OPT_BOOL(0, "all-match", &opt.all_match, |
4b407bc5 | 993 | N_("show only matches from files that match all patterns")), |
17bf35a3 | 994 | { OPTION_SET_INT, 0, "debug", &opt.debug, NULL, |
3d7535e4 | 995 | N_("show parse tree for grep expression"), |
17bf35a3 | 996 | PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 }, |
3e230fa1 | 997 | OPT_GROUP(""), |
0af88c15 | 998 | { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, |
4b407bc5 | 999 | N_("pager"), N_("show matching files in the pager"), |
0af88c15 | 1000 | PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, |
d5d09d47 SB |
1001 | OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored, |
1002 | N_("allow calling of grep(1) (ignored by this build)")), | |
3e230fa1 RS |
1003 | OPT_END() |
1004 | }; | |
5010cb5f | 1005 | |
15fabd1b JH |
1006 | init_grep_defaults(); |
1007 | git_config(grep_cmd_config, NULL); | |
1008 | grep_init(&opt, prefix); | |
0281e487 | 1009 | super_prefix = get_super_prefix(); |
7e8f59d5 | 1010 | |
5010cb5f | 1011 | /* |
5acd64ed JH |
1012 | * If there is no -- then the paths must exist in the working |
1013 | * tree. If there is no explicit pattern specified with -e or | |
1014 | * -f, we take the first unrecognized non option to be the | |
1015 | * pattern, but then what follows it must be zero or more | |
1016 | * valid refs up to the -- (if exists), and then existing | |
1017 | * paths. If there is an explicit pattern, then the first | |
82e5a82f | 1018 | * unrecognized non option is the beginning of the refs list |
5acd64ed | 1019 | * that continues up to the -- (if exists), and then paths. |
5010cb5f | 1020 | */ |
37782920 | 1021 | argc = parse_options(argc, argv, prefix, options, grep_usage, |
3e230fa1 | 1022 | PARSE_OPT_KEEP_DASHDASH | |
44415499 | 1023 | PARSE_OPT_STOP_AT_NON_OPTION); |
c5c31d33 | 1024 | grep_commit_pattern_type(pattern_type_arg, &opt); |
3e230fa1 | 1025 | |
ecd9ba61 TG |
1026 | if (use_index && !startup_info->have_repository) { |
1027 | int fallback = 0; | |
1028 | git_config_get_bool("grep.fallbacktonoindex", &fallback); | |
1029 | if (fallback) | |
1030 | use_index = 0; | |
1031 | else | |
1032 | /* die the same way as if we did it at the beginning */ | |
1033 | setup_git_directory(); | |
1034 | } | |
59332d13 | 1035 | |
1123c67c JK |
1036 | /* |
1037 | * skip a -- separator; we know it cannot be | |
1038 | * separating revisions from pathnames if | |
1039 | * we haven't even had any patterns yet | |
1040 | */ | |
1041 | if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) { | |
1042 | argv++; | |
1043 | argc--; | |
1044 | } | |
1045 | ||
3e230fa1 RS |
1046 | /* First unrecognized non-option token */ |
1047 | if (argc > 0 && !opt.pattern_list) { | |
1048 | append_grep_pattern(&opt, argv[0], "command line", 0, | |
1049 | GREP_PATTERN); | |
1050 | argv++; | |
1051 | argc--; | |
5010cb5f | 1052 | } |
5acd64ed | 1053 | |
0af88c15 JS |
1054 | if (show_in_pager == default_pager) |
1055 | show_in_pager = git_pager(1); | |
678e484b | 1056 | if (show_in_pager) { |
e7b082a4 | 1057 | opt.color = 0; |
0af88c15 JS |
1058 | opt.name_only = 1; |
1059 | opt.null_following_name = 1; | |
1060 | opt.output_priv = &path_list; | |
1061 | opt.output = append_path; | |
0c72cead | 1062 | string_list_append(&path_list, show_in_pager); |
678e484b JS |
1063 | } |
1064 | ||
f9b9faf6 | 1065 | if (!opt.pattern_list) |
2fc5f9f1 | 1066 | die(_("no pattern given.")); |
5183bf67 BC |
1067 | if (!opt.fixed && opt.ignore_case) |
1068 | opt.regflags |= REG_ICASE; | |
5b594f45 | 1069 | |
83b5d2f5 | 1070 | compile_grep_patterns(&opt); |
5acd64ed JH |
1071 | |
1072 | /* Check revs and then paths */ | |
3e230fa1 | 1073 | for (i = 0; i < argc; i++) { |
5acd64ed | 1074 | const char *arg = argv[i]; |
1362671f | 1075 | unsigned char sha1[20]; |
afa15f3c | 1076 | struct object_context oc; |
5acd64ed | 1077 | /* Is it a rev? */ |
afa15f3c | 1078 | if (!get_sha1_with_context(arg, 0, sha1, &oc)) { |
f7892d18 | 1079 | struct object *object = parse_object_or_die(sha1, arg); |
0b0ecaac NTND |
1080 | if (!seen_dashdash) |
1081 | verify_non_filename(prefix, arg); | |
9e0c3c4f | 1082 | add_object_array_with_path(object, arg, &list, oc.mode, oc.path); |
5acd64ed JH |
1083 | continue; |
1084 | } | |
1085 | if (!strcmp(arg, "--")) { | |
1086 | i++; | |
1087 | seen_dashdash = 1; | |
1088 | } | |
1089 | break; | |
1362671f | 1090 | } |
5acd64ed | 1091 | |
53b8d931 | 1092 | #ifndef NO_PTHREADS |
044b1f3c | 1093 | if (list.nr || cached || show_in_pager) |
89f09dd3 VL |
1094 | num_threads = 0; |
1095 | else if (num_threads == 0) | |
1096 | num_threads = GREP_NUM_THREADS_DEFAULT; | |
1097 | else if (num_threads < 0) | |
1098 | die(_("invalid number of threads specified (%d)"), num_threads); | |
53b8d931 | 1099 | #else |
89f09dd3 | 1100 | num_threads = 0; |
53b8d931 TR |
1101 | #endif |
1102 | ||
53b8d931 | 1103 | #ifndef NO_PTHREADS |
89f09dd3 | 1104 | if (num_threads) { |
50dd0f2f AY |
1105 | if (!(opt.name_only || opt.unmatch_name_only || opt.count) |
1106 | && (opt.pre_context || opt.post_context || | |
1107 | opt.file_break || opt.funcbody)) | |
53b8d931 TR |
1108 | skip_first_line = 1; |
1109 | start_threads(&opt); | |
1110 | } | |
1111 | #endif | |
1112 | ||
5acd64ed JH |
1113 | /* The rest are paths */ |
1114 | if (!seen_dashdash) { | |
1115 | int j; | |
c39c4f47 | 1116 | for (j = i; j < argc; j++) |
023e37c3 | 1117 | verify_filename(prefix, argv[j], j == i); |
5acd64ed JH |
1118 | } |
1119 | ||
0fdc2ae5 | 1120 | parse_pathspec(&pathspec, 0, |
6330a171 NTND |
1121 | PATHSPEC_PREFER_CWD | |
1122 | (opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0), | |
0fdc2ae5 | 1123 | prefix, argv + i); |
1376e507 NTND |
1124 | pathspec.max_depth = opt.max_depth; |
1125 | pathspec.recursive = 1; | |
5010cb5f | 1126 | |
0281e487 BW |
1127 | if (recurse_submodules) { |
1128 | gitmodules_config(); | |
1129 | compile_submodule_options(&opt, &pathspec, cached, untracked, | |
1130 | opt_exclude, use_index, | |
1131 | pattern_type_arg); | |
1132 | } | |
1133 | ||
678e484b | 1134 | if (show_in_pager && (cached || list.nr)) |
e4fe4ba5 | 1135 | die(_("--open-files-in-pager only works on the worktree")); |
678e484b JS |
1136 | |
1137 | if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) { | |
1138 | const char *pager = path_list.items[0].string; | |
1139 | int len = strlen(pager); | |
1140 | ||
1141 | if (len > 4 && is_dir_sep(pager[len - 5])) | |
1142 | pager += len - 4; | |
1143 | ||
f7febbea JS |
1144 | if (opt.ignore_case && !strcmp("less", pager)) |
1145 | string_list_append(&path_list, "-I"); | |
1146 | ||
678e484b JS |
1147 | if (!strcmp("less", pager) || !strcmp("vi", pager)) { |
1148 | struct strbuf buf = STRBUF_INIT; | |
1149 | strbuf_addf(&buf, "+/%s%s", | |
1150 | strcmp("less", pager) ? "" : "*", | |
1151 | opt.pattern_list->pattern); | |
0c72cead | 1152 | string_list_append(&path_list, buf.buf); |
678e484b JS |
1153 | strbuf_detach(&buf, NULL); |
1154 | } | |
1155 | } | |
1156 | ||
0281e487 BW |
1157 | if (recurse_submodules && (!use_index || untracked || list.nr)) |
1158 | die(_("option not supported with --recurse-submodules.")); | |
1159 | ||
c2048f0b | 1160 | if (!show_in_pager && !opt.status_only) |
678e484b JS |
1161 | setup_pager(); |
1162 | ||
0a93fb8a | 1163 | if (!use_index && (untracked || cached)) |
dbfae86a | 1164 | die(_("--cached or --untracked cannot be used with --no-index.")); |
678e484b | 1165 | |
0a93fb8a | 1166 | if (!use_index || untracked) { |
0a93fb8a | 1167 | int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude; |
59332d13 | 1168 | if (list.nr) |
dbfae86a | 1169 | die(_("--no-index or --untracked cannot be used with revs.")); |
85975c0c | 1170 | hit = grep_directory(&opt, &pathspec, use_exclude, use_index); |
dbfae86a | 1171 | } else if (0 <= opt_exclude) { |
9fddaf78 | 1172 | die(_("--[no-]exclude-standard cannot be used for tracked contents.")); |
685359cf | 1173 | } else if (!list.nr) { |
6577f542 NTND |
1174 | if (!cached) |
1175 | setup_work_tree(); | |
5b594f45 | 1176 | |
f34bbc15 | 1177 | hit = grep_cache(&opt, &pathspec, cached); |
685359cf JS |
1178 | } else { |
1179 | if (cached) | |
2fc5f9f1 | 1180 | die(_("both --cached and trees are given.")); |
f34bbc15 | 1181 | hit = grep_objects(&opt, &pathspec, &list); |
5010cb5f | 1182 | } |
5b594f45 | 1183 | |
89f09dd3 | 1184 | if (num_threads) |
5b594f45 | 1185 | hit |= wait_all(); |
678e484b JS |
1186 | if (hit && show_in_pager) |
1187 | run_pager(&opt, prefix); | |
b48fb5b6 | 1188 | free_grep_patterns(&opt); |
5010cb5f JH |
1189 | return !hit; |
1190 | } |